<?xml version="1.0"?>
<rss version="2.0"><channel><title>News: General News</title><link>https://nsaneforums.com/news/general-news/page/111/?d=2</link><description>News: General News</description><language>en</language><item><title>The biggest climate records hit this year</title><link>https://nsaneforums.com/news/general-news/the-biggest-climate-records-hit-this-year-r20292/</link><description><![CDATA[<p>
	<span style="font-size:22px;">The sheer number of climate records made in 2023 presents a harrowing warning of the destructiveness of climate change</span>
</p>

<p>
	 
</p>

<p>
	The effects of climate change are making themselves known as this year hits new records of uncertainty. And these records are just the beginning if humanity doesn't change course.
</p>

<p>
	 
</p>

<p>
	<span style="font-size:22px;"><strong>1.</strong></span><span style="color:#c0392b;"><span style="font-size:22px;"><strong> Hottest month on record</strong></span></span>
</p>

<p>
	<br />
	This year saw a sweltering summer, with July 2023 being declared the hottest month on record, according to the Copernicus Climate Change Service (C3S). The month's average temperature was 62.51 degrees Fahrenheit, six-tenths of a degree higher than the previous record set in 2019, The Associated Press reported.
</p>

<p>
	 
</p>

<p>
	"These records have dire consequences for both people and the planet exposed to ever more frequent and intense extreme events," Copernicus Deputy Director Samantha Burgess told AP. The high temperatures are a combination of anthropogenic climate change as well as the El Niño weather phenomenon. "July's record is unlikely to remain isolated this year," as "temperatures are likely to be well above average," said C3S Director Carlo Buontempo.
</p>

<p>
	 
</p>

<p>
	"The need to reduce greenhouse gas emissions is more urgent than ever before," Petteri Taalas, a professor and the secretary-general of the World Meteorological Organization, said in a statement. "Climate action is not a luxury but a must."
</p>

<p>
	 
</p>

<p>
	<span style="font-size:22px;"><strong>2. <span style="color:#c0392b;">Hottest ocean temperatures</span></strong></span>
</p>

<p>
	 
</p>

<p>
	Climate change has also caused unprecedented ocean warming. Along with global air temperatures, water temperatures also hit a record high, almost reaching 100 degrees Fahrenheit in some locations. In the Florida Keys, the water temperature hit 101 degrees Fahrenheit, which could potentially be a new world record, The New York Times reported.
</p>

<p>
	 
</p>

<p>
	However, scientists expect that the record will likely be broken again. "The fact that we've seen the record now makes me nervous about how much warmer the ocean may get between now and next March," Copernicus' Burgess told BBC. This is because oceans absorb more heat than land does. "The more we burn fossil fuels, the more excess heat will be taken out by the oceans, which means the longer it will take to stabilize them and get them back to where they were."
</p>

<p>
	 
</p>

<p>
	The water heat is wreaking havoc on marine ecosystems, including coral reefs. "There is widespread coral bleaching at shallow reefs in Florida, and many corals have already died," Dr. Kathryn Lesneski of the National Oceanic and Atmospheric Administration told BBC. The ocean is the "most accurate thermometer we have for the actual effect of climate change because it's where most of the heat ends up," Zeke Hausfather, a climate scientist at nonprofit research institute Berkeley Earth, told the Times.
</p>

<p>
	 
</p>

<p>
	<span style="font-size:22px;"><strong>3. <span style="color:#c0392b;">Lowest Antarctic ice cover</span></strong></span>
</p>

<p>
	<br />
	Winter in the Southern Hemisphere is when Antarctic ice is supposed to form. However, this year "growth has been stunted," and the amount of sea ice in the region is "hitting a record low by a wide margin," per The New York Times. "The Antarctic sea ice extent low in 2023 is unprecedented in the satellite record," Liping Zhang, a project scientist at the NOAA's Geophysical Fluid Dynamics Laboratory, wrote in an email to the Times.
</p>

<p>
	 
</p>

<p>
	The previous record low was from 2022, but this year the ice level is approximately 1.6 million square kilometers below last year, CNN reported. "The Antarctic system has always been highly variable," Ted Scambos, a glaciologist at the University of Colorado Boulder, told CNN. "This [current] level of variation, though, is so extreme that something radical has changed in the past two years, but especially this year, relative to all previous years going back at least 45 years."
</p>

<p>
	 
</p>

<p>
	The warmer ocean temperatures are likely mixing into Antarctic waters, preventing ice from forming. Melting ice is a key factor in sea level rise. Ice also serves to reflect back sunlight, helping to regulate global temperatures.
</p>

<p>
	 
</p>

<p>
	<span style="font-size:22px;"><strong>4.<span style="color:#c0392b;"> Passing 2-degree warming</span></strong></span>
</p>

<p>
	<br />
	The United Nations has consistently warned of the dangers of temperatures rising 1.5 degrees Celsius above pre-industrial levels. However, we finally saw a real taste of this temperature. On Nov. 17, the planet briefly exceeded two degrees Celsius of warming, the upper maximum of warming cautioned by experts. While exceeding these temperatures by just one day doesn't mean that all is lost, "it's a striking reminder that the climate is moving into uncharted territory," The Washington Post.
</p>

<p>
	 
</p>

<p>
	Passing the threshold indicates a shifting baseline. "Our best estimate is that this was the first day when global temperature was more than 2°C above 1850-1900 (or pre-industrial) levels, at 2.06°C," Samantha Burgess, deputy director of the Copernicus Climate Change Service, wrote on X, formerly known as Twitter. The breach acts as a "canary in the coal mine," Richard Allan, professor of climate science at the University of Reading, told CNN. It is "entirely expected that single days will surpass 2 degrees above pre-industrial well before the actual 2 degrees Celsius target is breached over many years."
</p>

<p>
	 
</p>

<p>
	The temperature is testing the limits of ecosystems and infrastructure alike, putting pressure on power grids and making some regions deadly without access to air conditioners. “Global temperature records are being broken with alarming regularity,” Carlo Buontempo, the director of the Copernicus Climate Change Service, told The Atlantic. Curbing warming is critical. Greenhouse gas emissions continue to rise every year and further warming is pushing the planet to several tipping points.
</p>

<p>
	 
</p>

<p>
	<strong><a href="https://theweek.com/science/1025614/the-biggest-climate-records-hit-this-year" rel="external nofollow">Source</a></strong>
</p>
]]></description><guid isPermaLink="false">20292</guid><pubDate>Mon, 27 Nov 2023 02:27:27 +0000</pubDate></item><item><title>Chinese scientists achieve breakthrough in early detection of &#x2018;king cancer&#x2019; that killed Steve Jobs</title><link>https://nsaneforums.com/news/general-news/chinese-scientists-achieve-breakthrough-in-early-detection-of-%E2%80%98king-cancer%E2%80%99-that-killed-steve-jobs-r20291/</link><description><![CDATA[<ul>
	<li>
		<span style="font-size:22px;">AI scientists and clinical researchers have worked together to develop a new early screening method to detect pancreatic cancer</span>
	</li>
</ul>

<p>
	 
</p>

<ul>
	<li>
		<span style="font-size:22px;">It could help save thousands of lives every year, with the difficulty in diagnosing pancreatic cancer making it one of the deadliest cancers</span>
	</li>
</ul>

<p>
	 
</p>

<p>
	An artificial intelligence tool developed by Chinese scientists has led to a breakthrough in early-stage screening of one of the most fatal cancers.
</p>

<p>
	<br />
	Pancreatic cancer, often called the “king of cancers”, has an average five-year survival rate of less than 10 per cent. It killed Apple co-founder Steve Jobs in 2011, and more recently, it was the cause of death last month of Wu Zunyou, chief scientist at the Chinese Centre for Disease Control and Prevention.
</p>

<p>
	<br />
	One of the main reasons pancreatic cancer has such a high death rate is the difficulty in early detection. It is rarely found in its early stages, when the chance of curing it is at its greatest. That is because it often does not cause symptoms until it has spread to other organs, according to the Mayo Clinic.
</p>

<p>
	<br />
	But the early screening model, developed jointly by AI scientists from tech firm Alibaba Group’s DAMO Academy and clinical researchers from hospitals including the Shanghai Institution of Pancreatic Diseases, has shown promising results. Alibaba is the owner of the South China Morning Post.
</p>

<p>
	 
</p>

<p>
	The model combines a non-contrast computed tomography (CAT) scan with an AI algorithm. In a paper published by the peer-reviewed journal Nature Medicine on Monday, the team said the specificity of the early screening model reached 99.9 per cent, implying there is only one false-positive case in every 1,000 tests.
</p>

<p>
	 
</p>

<p>
	Meanwhile, its sensitivity, or ability to detect pancreatic tumours, could reach 92.9 per cent, beating mean radiologist performance by 34.1 per cent.
</p>

<p>
	 
</p>

<p>
	One of the paper’s reviewers, Li Ruijiang, an associate professor of radiation oncology at the Stanford School of Medicine, said the work represented “an important step in the right direction for pancreatic cancer screening”.
</p>

<p>
	 
</p>

<p>
	Yet AI-based imaging applications have not been granted approval by Chinese authorities, according to a doctor from the Cancer Hospital at the Chinese Academy of Medical Sciences who declined to be named. So despite its impressive initial results, there is still a long way to go before the technology could be used in clinical practice.
</p>

<p>
	 
</p>

<p>
	The early screening model developed by the team is tailored for pancreatic ductal adenocarcinoma (PDAC), the most common subtype of pancreatic cancer, which accounts for over 95 per cent of all cases. PDAC causes around 466,000 deaths per year worldwide.
</p>

<p>
	 
</p>

<p>
	In the United States, pancreatic cancer is now the fourth leading cause of cancer-related deaths for both men and women, and trends indicate that it will be the second leading cause of cancer death in the country by 2030.
</p>

<p>
	<br />
	Research published in April by the US National Institutes of Health (NIH), which looked at trends in age-standardised cancer incidence, survival and mortality rates between 2000 and 2019, found that death rates from pancreatic cancer have been steadily increasing – 0.2 per cent every year from 2006 to 2019.
</p>

<p>
	 
</p>

<p>
	Early or incidental detection can significantly improve a patient’s chance of survival. Studies have shown that high-risk patients who had PDAC detected in early screening have a median overall survival of 9.8 years, while those with late diagnoses have a median survival of 1.5 years.
</p>

<p>
	However, there is a lack of effective and easily accessible screening technology for the general population.
</p>

<p>
	 
</p>

<p>
	With the prevalence of pancreatic cancer relatively low – there are fewer than 13 cases per 100,000 – the use of expensive contrast-enhanced CAT scans across the general population is uneconomic.
</p>

<p>
	<br />
	“On the other hand, existing early screening tools for pancreatic cancer are generally poor in accuracy, leading to many cases of misdiagnosis and unnecessary panic,” said lead author Cao Kai from the Shanghai Institution of Pancreatic Diseases in an interview with mainland media website Zhishifenzi.
</p>

<p>
	 
</p>

<p>
	It was during a conversation last year between Cao and Lu Le, the leader of DAMO Academy’s medical team, that they came up with the idea of using AI to assist in early cancer screening.
</p>

<p>
	 
</p>

<p>
	The pair quickly took action and, together with more than 10 prestigious medical institutions, they initiated a research project aimed at developing a technology that would combine non-contrast CAT scans, which are widely used in medical facilities and hospitals, with AI to create a model suitable for large-scale pancreatic cancer screening.
</p>

<p>
	 
</p>

<p style="text-align:center;">
	<img alt="38b5ed17-fbe2-4bab-9a2f-9f342e6ce36c_d59" class="ipsImage" data-ratio="75.10" height="537" width="720" src="https://cdn.i-scmp.com/sites/default/files/d8/images/canvas/2023/11/24/38b5ed17-fbe2-4bab-9a2f-9f342e6ce36c_d59abfd9.jpg" />
</p>

<p style="text-align:center;">
	<span style="font-size:12px;"><em>Apple co-founder Steve Jobs died at the age of 56 from pancreatic cancer, which is notoriously difficult to detect. Photo: AP</em></span>
</p>

<p style="text-align:center;">
	 
</p>

<p>
	Their brainchild was an algorithm for “pancreatic cancer detection with artificial intelligence” – known as PANDA. It was trained based on more than 3,200 image sets from a high-volume pancreatic cancer institution in China, about 70 per cent of which stemmed from patients with a pancreatic lesion.
</p>

<p>
	 
</p>

<p>
	Thanks to the large data set, meticulous data processing and innovative training strategy design, PANDA was trained as a highly perceptive AI imaging expert.
</p>

<p>
	<br />
	Researchers at DAMO Academy discovered that subtle density differences in non-contrast CAT scans, which may be difficult to detect with the naked eye, can be picked up by AI.
</p>

<p>
	 
</p>

<p>
	When applying PANDA to real-world clinical scenarios involving 20,530 patients to validate its accuracy, the researchers found that the AI tool could achieve impressive sensitivity of up to 92.9 per cent and a specificity of 99.9 per cent.
</p>

<p>
	 
</p>

<p>
	According to information provided by Alibaba Cloud, the PANDA model has been used more than 500,000 times in settings including hospitals and medical examinations, and has detected multiple cases of early-stage pancreatic cancer that were previously missed.
</p>

<p>
	 
</p>

<p>
	“The accuracy metrics of the PANDA algorithm are superior to those of several acknowledged screening methods,” German clinical expert Joerg Kleeff and his colleague wrote in a comment piece published in the same Nature issue.
</p>

<p>
	 
</p>

<p>
	However, they also warned that further assessment was needed before the AI-based screening could become widespread practice.
</p>

<p>
	 
</p>

<p>
	They pointed out that any potential screening method for pancreatic cancer should detect early stages such as “T1 lesions”, which are smaller than 2cm (0.79 inches) in diameter, but the AI model from China did not report specificity and predictive values for this subgroup.
</p>

<p>
	 
</p>

<p>
	“The value of any screening method for cancer lies in reducing all-cause mortality. The study was of retrospective design and so could not assess the effect of screening on the mortality of included patients,” they said, adding that AI-based screening should be evaluated with the same rigour as conventional screening.
</p>

<p>
	 
</p>

<p>
	“This AI model is still at the early stage and warrants more validation efforts,” the doctor at the Chinese Academy of Medical Sciences said. He added that given the low prevalence of pancreatic cancer, the demand for this AI tool would be limited.
</p>

<p>
	 
</p>

<p>
	<strong><a href="https://www.scmp.com/news/china/science/article/3242671/chinese-scientists-achieve-breakthrough-early-detection-king-cancer-killed-steve-jobs" rel="external nofollow">Source</a></strong>
</p>
]]></description><guid isPermaLink="false">20291</guid><pubDate>Mon, 27 Nov 2023 02:15:00 +0000</pubDate></item><item><title>A Minotaur IV rocket will launch a secretive US government satellite this week - TWIRL #140</title><link>https://nsaneforums.com/news/general-news/a-minotaur-iv-rocket-will-launch-a-secretive-us-government-satellite-this-week-twirl-140-r20287/</link><description><![CDATA[<p>
	We have quite a number of missions This Week in Rocket Launches. One that stands out is Orbital ATK’s launch of a Minotaur IV rocket carrying a secretive satellite for the US National Reconnaissance Office. There will also be a Russian resupply mission to the International Space Station.
</p>

<h3>
	Tuesday, 28 November
</h3>

<ul>
	<li>
		<strong>Who</strong>: SpaceX
	</li>
	<li>
		<strong>What</strong>: Falcon 9
	</li>
	<li>
		<strong>When</strong>: 4:00 - 8:31 a.m. UTC
	</li>
	<li>
		<strong>Where</strong>: Space Launch Complex 40, Cape Canaveral, Florida, US
	</li>
	<li>
		<strong>Why</strong>: SpaceX will be sending 23 Starlink satellites into low Earth orbit, this group of satellites is known as Starlink Group 6-30. Under this designation you can view these satellites from Earth using various satellite tracking apps.
	</li>
</ul>

<h3>
	Wednesday, 29 November
</h3>

<ul>
	<li>
		<strong>Who</strong>: SpaceX
	</li>
	<li>
		<strong>What</strong>: Falcon 9
	</li>
	<li>
		<strong>When</strong>: 6:04 - 7:18 p.m. UTC
	</li>
	<li>
		<strong>Where</strong>: Vandenberg AFB Space Launch Complex 4, California, US
	</li>
	<li>
		<strong>Why</strong>: SpaceX will be launching the EO/IR 1 satellite to orbit for South Korea. It is part of the 425 Project reconnaissance satellite project and is the electro-optical / infra-red component. Ireland is also hitching a ride as its EIRSat 1 will fly as a secondary payload.
	</li>
</ul>

<h3>
	Friday, 1 December
</h3>

<ul>
	<li>
		<strong>Who</strong>: Galactic Energy
	</li>
	<li>
		<strong>What</strong>: Ceres 1
	</li>
	<li>
		<strong>When</strong>: Unknown
	</li>
	<li>
		<strong>Where</strong>: Jiuquan Satellite Launch Centre
	</li>
	<li>
		<strong>Why</strong>: Not much is known about the mission other than that it’s called “We won’t stop!” and that EllipSpace’s Xingchi 2A/B satellites are the payload.
	</li>
</ul>

<hr>
<ul>
	<li>
		<strong>Who</strong>: Orbital ATK (Northrop Grumman)
	</li>
	<li>
		<strong>What</strong>: Minotaur IV rocket
	</li>
	<li>
		<strong>When</strong>: Unknown
	</li>
	<li>
		<strong>Where</strong>: Vandenberg AFB Space Launch Complex 8, California, US
	</li>
	<li>
		<strong>Why</strong>: This rocket will launch the NROL-174 mission for the US National Reconnaissance Office. Details of the mission aren’t available as the payload is classified.
	</li>
</ul>

<hr>
<ul>
	<li>
		<strong>Who</strong>: Roscosmos
	</li>
	<li>
		<strong>What</strong>: Soyuz 2.1a
	</li>
	<li>
		<strong>When</strong>: 9:25 a.m. UTC
	</li>
	<li>
		<strong>Where</strong>: Baikonur Cosmodrome, Kazakhstan
	</li>
	<li>
		<strong>Why</strong>: This mission is the 86th Progress cargo mission to the International Space Station. Resupply missions like this usually include scientific experiments and supplies for the crew.
	</li>
</ul>

<h3>
	Recap
</h3>

<ul>
	<li>
		<p>
			The first mission last week saw SpaceX launch a Falcon 9 carrying 22 Starlink satellites. This was Starlink Group 7-7.
		</p>
	</li>
</ul>

<p>
	 
</p>

<div class="ipsEmbeddedVideo" contenteditable="false">
	<div>
		<iframe allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" allowfullscreen="" frameborder="0" height="113" src="https://www.youtube-nocookie.com/embed/xLXnYlPHErM?feature=oembed" title="SpaceX Starlink 122 launch and Falcon 9 first stage landing, 20 November 2023" width="200"></iframe>
	</div>
</div>

<p>
	 
</p>

<ul>
	<li>
		Next up, SpaceX launched Starlink Group 6-29.
	</li>
</ul>

<p>
	 
</p>

<div class="ipsEmbeddedVideo" contenteditable="false">
	<div>
		<iframe allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" allowfullscreen="" frameborder="0" height="113" src="https://www.youtube-nocookie.com/embed/ArtvsyJ9CkM?feature=oembed" title="SpaceX Starlink 123 launch and Falcon 9 first stage landing, 22 November 2023" width="200"></iframe>
	</div>
</div>

<p>
	 
</p>

<ul>
	<li>
		We didn’t write about this next launch in the last TWIRL edition, probably because North Korea is so secretive but the country did launch its Chollima-1 rocket carrying the Malligyong-1 satellite this week from the Sohae Satellite Launching station. According to officials in the country, the reconnaissance satellite entered into orbit 705 seconds after launch.
	</li>
</ul>

<p>
	 
</p>

<div class="ipsEmbeddedVideo" contenteditable="false">
	<div>
		<iframe allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" allowfullscreen="" frameborder="0" height="113" src="https://www.youtube-nocookie.com/embed/hvsYPoLGvls?feature=oembed" title="Chollima-1 launches Malligyong-1" width="200"></iframe>
	</div>
</div>

<p>
	 
</p>

<ul>
	<li>
		Lastly, China launched a Long March 2D rocket carrying the Satellite Internet Technology Test Satellite from the Xichang Satellite Launch Centre in Sichuan Province. The satellite entered its planned orbit successfully and will be used to test satellite internet technologies.
	</li>
</ul>

<p>
	 
</p>

<div class="ipsEmbeddedVideo" contenteditable="false">
	<div>
		<iframe allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" allowfullscreen="" frameborder="0" height="113" src="https://www.youtube-nocookie.com/embed/BlmvPtXQy4M?feature=oembed" title="Long March-2D launches “Satellite Internet Technology Test Satellite”" width="200"></iframe>
	</div>
</div>

<p>
	 
</p>

<p>
	That's all for this week, check in next time!
</p>

<p>
	 
</p>

<p>
	<a href="https://www.neowin.net/news/a-minotaur-iv-rocket-will-launch-a-secretive-us-government-satellite-this-week---twirl-140/" rel="external nofollow">Source</a>
</p>
]]></description><guid isPermaLink="false">20287</guid><pubDate>Sun, 26 Nov 2023 19:15:52 +0000</pubDate></item><item><title>What we know about respiratory illness outbreak &#x2018;overwhelming&#x2019; China&#x2019;s hospitals</title><link>https://nsaneforums.com/news/general-news/what-we-know-about-respiratory-illness-outbreak-%E2%80%98overwhelming%E2%80%99-china%E2%80%99s-hospitals-r20279/</link><description><![CDATA[<p>
	<span style="font-size:22px;">Scientists urge people to not panic as thousands of children complain of pneumonia-like symptoms in China</span>
</p>

<p>
	 
</p>

<p>
	China’s hospitals have been flooded with cases of respiratory illnesses and sick children complaining of pneumonia-like symptoms, leading to increased scrutiny from the World Health Organisation (WHO).
</p>

<p>
	 
</p>

<p>
	A Beijing children’s hospital told state media CCTV that at least 7,000 patients were being admitted daily to the institution, far exceeding its capacity.
</p>

<p>
	Last week, the largest paediatric hospital in nearby Tianjin reportedly received more than 13,000 children at its outpatient and emergency departments.
</p>

<p>
	 
</p>

<p>
	Liaoning province, about 690km northeast of the capital, is also grappling with high case numbers.
</p>

<p>
	 
</p>

<p>
	The increasing number of cases prompted the WHO on Wednesday to issue a formal request for disease data on the respiratory illnesses and reported clusters of pneumonia in children.
</p>

<p>
	 
</p>

<p>
	It is rare for the UN health agency to publicly seek more detailed information from countries, as such requests are typically made internally. The agency’s China office said this was a “routine” request.
</p>

<p>
	 
</p>

<p>
	Chinese health authorities later said they found no “unusual or novel diseases”.
</p>

<p>
	 
</p>

<p>
	They said the rising infections are a mix of already known viruses and are linked to the country’s first full cold season after strict Covid restrictions were lifted last December.
</p>

<p>
	 
</p>

<p>
	The lifting of the curbs, along with the circulation of known pathogens like mycoplasma pneumoniae, may have contributed to increasing cases of such illnesses, suggested the authorities.
</p>

<p>
	 
</p>

<p>
	The WHO also said on Wednesday that any link between clusters of undiagnosed pneumonia and a rise in respiratory infections is unclear as of now.
</p>

<p>
	 
</p>

<p>
	<span style="font-size:22px;"><strong>What has happened so far?</strong></span>
</p>

<p>
	 
</p>

<p>
	Northern China has reported an increase in “influenza-like illnesses” since mid-October, compared to the same period in the previous three years, according to the WHO.
</p>

<p>
	 
</p>

<p>
	On 21 November, public disease surveillance system ProMED had issued a notification about reports of “undiagnosed pneumonia”. ProMED, that is run by health experts, had earlier in 2019 raised the alarm over the virus that causes Covid.
</p>

<p>
	 
</p>

<p>
	“With the outbreak of pneumonia in China, children’s hospitals in Beijing, Liaoning and other places were overwhelmed with sick children, and schools and classes were on the verge of suspension,” ProMED said while citing a report by FTV News.
</p>

<p>
	 
</p>

<p>
	“It is not at all clear when this outbreak started as it would be unusual for so many children to be affected so quickly.
</p>

<p>
	 
</p>

<p>
	“This report suggests a widespread outbreak of an undiagnosed respiratory illness in several areas in China as Beijing and Liaoning are almost 800 km apart.
</p>

<p>
	 
</p>

<p>
	“The report does not say that any adults were affected suggesting some exposure at the schools.”
</p>

<p>
	 
</p>

<p>
	Some parents in Shanghai on Friday said they were not overly concerned about the wave of sickness.
</p>

<p>
	 
</p>

<p>
	“Colds happen all over the world,” said Emily Wu outside a children’s hospital. “I hope that people will not be biased because of the pandemic... but look at this from a scientific perspective.”
</p>

<p>
	 
</p>

<p>
	<span style="font-size:22px;"><strong>What are the symptoms?</strong></span>
</p>

<p>
	 
</p>

<p>
	According to Chinese health authorities, the outbreak could be linked to mycoplasma pneumoniae, also known as “walking pneumonia”, a common bacterial infection typically affecting children that has been circulating since May.
</p>

<p>
	 
</p>

<p>
	Symptoms of walking pneumonia include a sore throat, fatigue and a lingering cough that can last for weeks or months. In severe cases, this can eventually deteriorate into pneumonia.
</p>

<p>
	 
</p>

<p>
	A Beijing citizen, identified only as Wei, told FTV News that infected children “don’t cough and have no symptoms. They just have a high temperature (fever) and many develop pulmonary nodules.”
</p>

<p>
	 
</p>

<p>
	<span style="font-size:22px;"><strong>How infectious is the disease?</strong></span>
</p>

<p>
	 
</p>

<p>
	Bruce Thompson, head of the Melbourne School of Health Sciences at the University of Melbourne, told Reuters very preliminary data suggested there was nothing out of the ordinary.
</p>

<p>
	 
</p>

<p>
	“At this stage, there is nothing to suggest that it may be a new variant of Covid,” he said.
</p>

<p>
	 
</p>

<p>
	“One thing to note is that we can be reassured that the surveillance processes are working, which is a very good thing.”
</p>

<p>
	 
</p>

<p>
	The WHO suggested people in China get vaccinated, isolate if they are feeling ill, wear masks if necessary and get medical care as needed.
</p>

<p>
	 
</p>

<p>
	“While WHO seeks this additional information, we recommend that people in China follow measures to reduce the risk of respiratory illness,” the agency said.
</p>

<p>
	 
</p>

<p>
	<span style="font-size:22px;"><strong>What are scientists saying?</strong></span>
</p>

<p>
	 
</p>

<p>
	Marion Koopmans, a Dutch virologist who advised the WHO on Covid, said there needs to be “more information, particularly diagnostic information”.
</p>

<p>
	“We have to be careful.”
</p>

<p>
	 
</p>

<p>
	“The challenge is to discern the outbreaks and determine the cause,” said David Heymann of the London School of Hygiene and Tropical Medicine.
</p>

<p>
	 
</p>

<p>
	He pointed out that there was a likely background of seasonal respiratory infections.
</p>

<p>
	 
</p>

<p>
	“I am not going to push the pandemic panic button on the basis of what we know so far, but I will be very keen to see the response to WHO from China and see the WHO’s assessment following that,” said Brian McCloskey, a public health expert who also advised the WHO on the pandemic.
</p>

<p>
	 
</p>

<p>
	“What we are seeing is WHO’s International Health Regulations system in action”, he said, referring to the rules governing how countries work with the WHO on potential outbreaks.
</p>

<p>
	 
</p>

<p>
	Virologist Tom Peacock from Imperial College London said it was unlikely the increasing infections happened under the radar as there are tools now to “pretty rapidly” pick up emerging influenza or coronaviruses.
</p>

<p>
	 
</p>

<p>
	“(I) suspect it may end up being something more mundane or a combination of things – say Covid, flu, RSV [respiratory syncytial virus] – but hopefully we’ll know more soon,” he said.
</p>

<p>
	 
</p>

<p>
	<strong><a href="https://www.independent.co.uk/asia/china/china-respiratory-illness-outbreak-pneumonia-b2453296.html" rel="external nofollow">Source</a></strong>
</p>
]]></description><guid isPermaLink="false">20279</guid><pubDate>Sat, 25 Nov 2023 17:40:17 +0000</pubDate></item><item><title>Stress and Depression Can Be a Vicious Cycle</title><link>https://nsaneforums.com/news/general-news/stress-and-depression-can-be-a-vicious-cycle-r20277/</link><description><![CDATA[<p>
	<span style="font-size:22px;">A meta-analysis finds the established stress generation model applies not only to depression, but also other mental health disorders.</span>
</p>

<p>
	 
</p>

<p>
	A recent quantitative meta-analysis, published in the Psychological Bulletin, concludes that those who suffer from mental disorders are more likely to find themselves in stressful situations of their own making.
</p>

<p>
	 
</p>

<p>
	The team, co-led by Angela Santee, a psychology graduate student at the University of Rochester, and Katerina Rnic, a postdoctoral fellow at the University of British Columbia, looked at 95 longitudinal studies, spanning over 38,000 study participants, and more than 30 years of research.
</p>

<p>
	 
</p>

<p>
	They found that psychopathology—such as mental illness or disorders, including depression—predicted dependent stressful life events (events that the person, at least in part, contributed to) more strongly than it predicted independent or fateful events.
</p>

<p>
	 
</p>

<p>
	<span style="font-size:22px;"><strong>The stress generation model</strong></span>
</p>

<p>
	<br />
	The meta-analysis bore out the stress generation model, developed in 1991 by University of California, Los Angeles, psychology professor Constance Hammen. According to the model, some people contribute more than others to the occurrence of dependent stressors—that is stressful life events that occur, at least in part, due to a person’s behavior or personal characteristics—such as relationship breakups, failing a class, or job loss because of conflict with a coworker. Conversely, according to the model, people do not influence independent stressors like fateful events that occur regardless of a person’s influence—such as the death of a loved one, or job loss due to an economic downturn.
</p>

<p>
	 
</p>

<p>
	While Hammen’s model had spawned plenty of research over the past three decades, the resulting literature had never been quantitatively summarized before.
</p>

<p>
	 
</p>

<p>
	“People with depression might be more likely to have arguments with others, or put off completing important tasks at work or home,” says Rnic. “This can lead to more stressors in their relationships, work, education, finances, health—all domains of life.”
</p>

<p>
	 
</p>

<p>
	Importantly, though, the team found that the theory of stress generation not only holds for people with depression but also across many other mental health disorders, such as anxiety, personality disorders, substance use, and childhood disruptive disorders.
</p>

<p>
	 
</p>

<p>
	The finding is crucial, the team argues, because it means that people have some agency over the stress they experience. To Santee, this degree of stress malleability could be a silver lining:
</p>

<p>
	 
</p>

<p>
	“It’s a powerful realization that some of the stressors we experience are within our control and so, theoretically, we can act to control how much stress we experience and the impact of that stress on us,” Santee says. “We all have the ability to shape our worlds.”
</p>

<p>
	 
</p>

<p>
	The meta-review’s findings include:
</p>

<p>
	 
</p>

<ul>
	<li>
		There’s clear evidence of stress generation across a broad range of psychopathologies, with a significantly larger effect for dependent stress (caused by the person), rather than independent stress (fateful outside events).
	</li>
</ul>

<p>
	 
</p>

<ul>
	<li>
		Stress generation effects were larger for people with depression than people with anxiety.
	</li>
</ul>

<p>
	 
</p>

<ul>
	<li>
		While stress generation occurs across all mental disorders and demographic groups, the effects were strongest among children, adolescents, and young adults.
	</li>
</ul>

<p>
	 
</p>

<ul>
	<li>
		The team found no differences in stress generation by gender, race, or geographic location, which indicates a universal phenomenon.
	</li>
</ul>

<p>
	 
</p>

<ul>
	<li>
		Over time, dependent stress (caused by the person) worsened a person’s mental illness symptoms, possibly contributing to chronic psychopathology, such as chronic depression.
	</li>
</ul>

<p>
	 
</p>

<ul>
	<li>
		Interventions seeking to prevent stress generation may lessen chronic psychopathology.
	</li>
</ul>

<p>
	 
</p>

<ul>
	<li>
		Importantly, the new meta-analysis offers strong evidence that stress generation seems to act as a factor that maintains and feeds a person’s depression.
	</li>
</ul>

<p>
	<br />
	“This finding is crucial because the major reason that depression is such a burden on society is that it’s a recurrent and often chronic problem,” says Lisa Starr, a senior coauthor of the meta-analysis, an associate professor in the University of Rochester’s psychology department, and Santee’s advisor.
</p>

<p>
	 
</p>

<p>
	<span style="font-size:22px;"><strong>How can someone break this cycle?</strong></span>
</p>

<p>
	<br />
	Being able to target the self-perpetuating stress generation with specific interventions can lessen a person’s mental illness or psychological disorder. That’s why the researchers embarked on a second undertaking: trying to isolate the specific processes that contribute to, or protect against, the occurrence of life stress. Treatments that target stress generation could reduce “the personal and economic cost of mental disorders,” the team writes.
</p>

<p>
	 
</p>

<p>
	The result is a second meta-analysis, published in Clinical Psychology Review, which looked at both modifiable risk and protective factors in stress generation, incorporating the findings of 70 studies with a total of nearly 40,000 participants, and spanning more than 30 years of research.
</p>

<p>
	Risk factors that predict stress generation over time are:
</p>

<p>
	 
</p>

<ul>
	<li>
		Personal characteristics, traits, and behaviors commonly associated with mental disorders
	</li>
</ul>

<p>
	 
</p>

<ul>
	<li>
		Ineffective interpersonal emotion regulation, such as excessively seeking reassurance from others or excessive co-rumination—that is, conversations with others that focus repetitively on one’s own stresses
	</li>
</ul>

<p>
	 
</p>

<ul>
	<li>
		Repetitive negative thoughts, including excessive ruminating and worrying
	</li>
</ul>

<p>
	 
</p>

<ul>
	<li>
		Excessive standards for oneself
	</li>
</ul>

<p>
	 
</p>

<ul>
	<li>
		The tendency to withdraw or avoid challenging situations or social interactions
	</li>
</ul>

<p>
	<br />
	Addressing these risk factors in treatment approaches, the authors argue, may be crucial to breaking the vicious cycle of stress generation.
</p>

<p>
	 
</p>

<p>
	Because a plethora of factors contribute to the generation of stress, a multi-pronged approach may be most effective. The team also found that preventive factors remained generally understudied.
</p>

<p>
	 
</p>

<p>
	Additional coauthors of the two meta-analyses are from the University of Rochester; the University of British Columbia; and the University of Western Ontario.
</p>

<p>
	 
</p>

<p>
	Source: <span style="color:#2980b9;"><em>University of Rochester</em></span>
</p>

<p>
	 
</p>

<p>
	<span style="color:#2980b9;"><em>Original Study</em></span> DOI: 10.1037/bul0000390
</p>

<p>
	 
</p>

<p>
	<strong><a href="https://goodmenproject.com/featured-content/stress-and-depression-can-be-a-vicious-cycle/" rel="external nofollow">Source</a></strong>
</p>
]]></description><guid isPermaLink="false">20277</guid><pubDate>Sat, 25 Nov 2023 17:13:28 +0000</pubDate></item><item><title>OpenAI&#x2019;s directors have been anything but open. What the hell happened?</title><link>https://nsaneforums.com/news/general-news/openai%E2%80%99s-directors-have-been-anything-but-open-what-the-hell-happened-r20272/</link><description><![CDATA[<p>
	<span style="color:#c0392b;"><span style="font-size:22px;"><strong>In the top company in the world’s most explosive industry</strong>, <strong>the boss was fired and rehired</strong> – <strong>and no one has said why</strong></span></span>
</p>

<p>
	 
</p>

<ul>
	<li>
		<span style="color:#c0392b;"><span style="font-size:18px;"><strong>OpenAI was ‘working on model so powerful it alarmed staff’</strong></span></span>
	</li>
</ul>

<p>
	 
</p>

<p>
	The OpenAI farce has moved at such speed in the past week that it is easy to forget that nobody has yet said in clear terms why Sam Altman – the returning chief executive and all-round genius, according to his vocal fanclub – was fired in the first place. Since we are constantly told, not least by Altman himself, that the worst outcome from the adoption of artificial general intelligence could be “lights out for all of us”, somebody needs to find a voice here.
</p>

<p>
	 
</p>

<p>
	If the old board judged, for example, that Altman was unfit for the job because he was taking OpenAI down a reckless path, lights-wise, there would plainly be an obligation to speak up. Or, if the fear is unfounded, the architects of the failed boardroom coup could do everybody a favour and say so. Saying nothing useful, especially when your previous stance has been that transparency and safety go hand in hand, is indefensible.
</p>

<p>
	 
</p>

<p>
	The original non-explanation from OpenAI was that Altman had to go because he had not been “consistently candid” with other directors. Not fully candid about what? A benign (sort of) interpretation is that the row was about the amount of time Altman was devoting to other business interests, including a reported computer chip venture. If that is correct, outsiders might indeed be relaxed: it is normal for other board members to worry about whether the boss is sufficiently focused on the day job.
</p>

<p>
	 
</p>

<p>
	Yet the whole purpose of OpenAI’s weird governance setup was to ensure safe development of the technology. For all its faults, the structure was intended to put the board of the controlling not-for-profit entity in change. Safety came first; the interests of the profit-seeking subsidiary were secondary. Here’s Altman’s own description, from February this year: “We have a nonprofit that governs us and lets us operate for the good of humanity (and can override any for-profit interests), including letting us do things like cancel our equity obligations to shareholders if needed for safety.”
</p>

<p>
	 
</p>

<p>
	The not-for-profit board, then, could close the whole show if it thought that was the responsible course. In principle, sacking the chief executive would merely count as a minor exercise of such absolute authority.
</p>

<p>
	 
</p>

<p>
	The chances of such arrangements working in practice were laughably slim, of course, especially when there was a whiff of an $86bn valuation in the air. You can’t take a few billion dollars from Microsoft, in exchange for a 49% stake in the profit-seeking operation, and expect it not to seek to protect its investment in a crisis. And if most of the staff – some of the world’s most in-demand workers – rise in rebellion and threaten to hop off to Microsoft en masse, you’ve lost.
</p>

<p>
	 
</p>

<p>
	Yet the precise reason for sacking Altman still matters. There were only four members of the board apart from him. One was the chief scientist, Ilya Sutskever, who subsequently performed a U-turn that he didn’t explain. Another is Adam D’Angelo, chief executive of the question-and-answer site Quora, who, bizarrely, intends to transition seamlessly from the board that sacked Altman to the one that hires him back. Really?
</p>

<p>
	 
</p>

<p>
	That leaves the two departed women: Tasha McCauley, a tech entrepreneur, and Helen Toner, a director at Georgetown University’s Center for Security and Emerging Technology. What do they think? Virtually the only comment from either has been Toner’s whimsical post on X after the rehiring of Altman: “And now, we all get some sleep.”
</p>

<p>
	 
</p>

<p>
	Do we, though? AI could pose a risk to humanity on the scale of a nuclear war, Rishi Sunak warned the other week, echoing the general assessment. If the leading firm can’t even explain the explosion in its own boardroom, why are outsiders meant to be chilled? In the latest twist, Reuters reported on Thursday that <span style="color:#c0392b;"><strong>researchers at OpenAI were so concerned about the dangers posed by the latest AI model that they wrote to the board</strong></span>. Those directors have some explaining to do – urgently.
</p>

<p>
	 
</p>

<p>
	<strong><a href="https://www.theguardian.com/technology/nils-pratley-on-finance/2023/nov/23/openais-directors-have-been-anything-but-open-what-the-hell-happened" rel="external nofollow">Source</a></strong>
</p>
]]></description><guid isPermaLink="false">20272</guid><pubDate>Fri, 24 Nov 2023 19:48:59 +0000</pubDate></item><item><title>The Ars guide to time travel in the movies</title><link>https://nsaneforums.com/news/general-news/the-ars-guide-to-time-travel-in-the-movies-r20267/</link><description><![CDATA[<h3>
	We picked 20 time-travel movies and rated them by scientific logic and entertainment value.
</h3>

<div class="article-content post-page" itemprop="articleBody">
	
	<p>
		Since antiquity, humans have envisioned various means of time travel into the future or the past. The concept has since become a staple of modern science fiction. In particular, the number of films that make use of time travel has increased significantly over the decades, while the real-world science has evolved right alongside them, moving from simple Newtonian mechanics and general relativity to quantum mechanics and the notion of a multiverse or more exotic alternatives like string theory.
	</p>

	<p>
		 
	</p>

	<p>
		But not all time-travel movies are created equal. Some make for fantastic entertainment but the time travel makes no scientific or logical sense, while others might err in the opposite direction, sacrificing good storytelling in the interests of technical accuracy. What we really need is a handy guide to help us navigate this increasingly crowded field to ensure we get the best of both worlds, so to speak. The Ars Guide to Time Travel in the Movies is here to help us all make better, more informed decisions when it comes to choosing our time travel movie fare.
	</p>

	<p>
		 
	</p>

	<p>
		This is not meant to be an exhaustive list; rather, we selected films that represented many diverse approaches to time travel across multiple subgenres and decades. We then evaluated each one—grading on a curve—with regard to its overall entertainment value and scientific logic, with the final combined score determining a film's spot on the overall ranking. For the “science” part of our scoring system, we specifically took three factors into account. First and foremost, does the time travel make logical sense? Second, is the physical mechanism of time travel somewhat realistic? And third, does the film use time travel in narratively interesting ways? So a movie like <i>Looper</i>, which makes absolutely no sense if you think about it too hard, gets points for weaving time paradoxes thoroughly into the fabric of the story.
	</p>

	<p>
		 
	</p>

	<p>
		<strong>(Many spoilers below in the interest of meaningful analysis.)</strong>
	</p>

	<p>
		 
	</p>

	<p>
		<img alt="Screenshot-2023-11-17-at-2.02.23%E2%80%A" class="ipsImage" data-ratio="84.38" height="540" width="544" src="https://cdn.arstechnica.net/wp-content/uploads/2023/11/Screenshot-2023-11-17-at-2.02.23%E2%80%AFPM-640x635.png">
	</p>

	<div>
		<em>Eric Bangeman</em>
	</div>

	<p>
		 
	</p>

	<div>
		<div>
			<p>
				What modern science has to say about time travel can be summed up thusly: You can travel to the future, but you probably can’t travel to the past, although to be honest, we’re not really sure. Einstein’s theory of general relativity—which says that space and time are unified into “spacetime” and the curvature of spacetime gives rise to gravity—at least lets us contemplate the possibility of time travel in a scientifically plausible context. A “<a href="https://en.wikipedia.org/wiki/Closed_timelike_curve" rel="external nofollow">closed timelike curve</a>” is a path through spacetime on which someone can move forward in time as far as their local perspective is concerned and nevertheless end up visiting their own past. Such a context, however, would involve astrophysically massive gravitational fields, possibly wormholes, and negative energies or something equally exotic. Essentially none of the films we will discuss even attempt to portray physically realistic time travel (with one exception, <i>Interstellar</i>, which is only a partial exception).
			</p>

			<p>
				 
			</p>
		</div>

		<div>
			<p>
				Even without scientific accuracy, we can still ask for logical consistency. Alas, that is also pretty thin on the ground, although in this case, there are true exceptions. The most straightforward way for travel to the past to make sense is if you can visit but you can’t actually change anything—“<a href="https://www.youtube.com/watch?v=S_dH4xOFp9w" rel="external nofollow">Whatever happened happened</a>,” in the <a href="https://www.youtube.com/watch?v=Mc8jkLRszNU" rel="external nofollow">memorable formulation</a> of fictional physicist Daniel Faraday in the TV show <i>Lost</i>. Physicists have dubbed this the “<a href="https://en.wikipedia.org/wiki/Novikov_self-consistency_principle" rel="external nofollow">Novikov self-consistency principle</a>,” but it can really just be summed up as “making sense." Somewhat more ambitiously, we can imagine one or more alternative parallel timelines that are created by a sojourn into history. For the most part, however, our cinematic heroes make a cheerful hash of logic and narrative sense as they traipse through their pasts.
			</p>

			<p>
				 
			</p>
		</div>
	</div>

	<p>
		Here are our 20 representative picks, discussed in chronological order of their release to highlight how the understanding and treatment of time travel in Hollywood has evolved over the decades. There are some truly delightful entries here (plus a few stinkers for balance), but our deep dive into the topic has convinced us that the perfect time travel movie has yet to be made. That's a worthy goal for future filmmakers to strive for.
	</p>
</div>

<div class="article-content post-page" itemprop="articleBody">
	<h2>
		<em>The Time Machine</em> (1960)
	</h2>

	<p>
		<img alt="timetravel25-640x421.jpg" class="ipsImage" data-ratio="65.78" height="421" width="640" src="https://cdn.arstechnica.net/wp-content/uploads/2023/09/timetravel25-640x421.jpg">
	</p>

	<div>
		<em>Frankly, we'd prefer an enclosed time machine to an open sled.</em>
	</div>

	<div>
		<em>MGM</em>
	</div>

	<p>
		 
	</p>

	<p>
		Director George Pal's <em><a href="https://en.wikipedia.org/wiki/The_Time_Machine_(1960_film)" rel="external nofollow">The Time Machine</a></em> was the first feature film adapted from H.G. Wells' 1895 novella. The plot hews pretty closely to the novella, replacing the nameless Time Traveler with a fictional version of H.G. Wells himself (Rod Taylor), an inventor in Victorian London. Wells travels to 1917 and World War I; 1940 and the London Blitz; 1966 (where he narrowly escapes the detonation of an "atomic satellite"); and finally to the very distant future of 802,701, where he meets the Eloi and the Morlocks, before returning to 1900. Reviews were mixed and the film hasn't aged well, but it did win an Oscar for best special effects. The actual time machine is an iconic prop in film history—it's a sled-like design with a large clock-like rotating disk and a brass plate on the instrument panel identifying the inventor as "H. George Wells."
	</p>

	<p>
		 
	</p>

	<div>
		<p>
			Wells’ original story was one of the first portrayals, in fiction or anywhere else, of the idea of other times as analogous to other locations in space—somewhere (or somewhen) you could visit and eventually return to your own time. Written two decades before Einstein proposed general relativity and curved spacetime and long before anyone thought to contemplate realistic time travel from a scientific perspective, Wells didn’t go into any detail about the mechanics. But the cinematic version nevertheless is relatively sensible.
		</p>

		<p>
			 
		</p>

		<p>
			The time machine may be an open sled (one might have asked for some enclosure before embarking on a journey through millennia), but at least it <i>travels</i> through time rather than magically teleporting through it. It’s unclear how it travels back to the past without running into itself, but that’s a quibble. As far as logic is concerned, there is surprisingly little to complain about. Our protagonist visits the future and eventually returns to his present before seemingly going back to the future again. Since he doesn’t visit the past, there really isn’t any opportunity to monkey with history as we know it.
		</p>

		<p>
			 
		</p>
	</div>

	<p>
		Entertainment Score: 4
	</p>

	<p>
		 
	</p>

	<p>
		Science Score: 7
	</p>

	<h2>
		<em>Superman</em> (1978)
	</h2>

	<p>
		<img alt="superman-640x425.jpg" class="ipsImage" data-ratio="66.41" height="425" width="640" src="https://cdn.arstechnica.net/wp-content/uploads/2023/11/superman-640x425.jpg">
	</p>

	<div>
		<em>"You'll believe a man can fly": Christopher Reeve will always be our Superman.</em>
	</div>

	<div>
		<em>Warner Bros.</em>
	</div>

	<p>
		 
	</p>

	<p>
		No disrespect to other incarnations, but Christopher Reeve will always be our Superman, solely based on his performance in <a href="https://en.wikipedia.org/wiki/Superman_(1978_film)" rel="external nofollow">this 1978 film</a>. Director Richard Donner gives us the canonical origin story: his infancy on the doomed planet Krypton and journey to Earth; his idyllic childhood in Smallville; and his extended education in the Fortress of Solitude at 18, emerging years later as a full-fledged superhero. He is Daily Planet reporter Clark Kent by day and a crime-fighting defender of truth, justice, and the American way on the side. So Superman inevitably comes into conflict with brainy arch-villain Lex Luthor (Gene Hackman, sporting a marvelous selection of outrageous wigs).
	</p>

	<p>
		 
	</p>

	<p>
		Its impeccable mix of action, humor, emotional resonance, and what were then groundbreaking special effects made <em>Superman</em> an instant classic. We're knocking off a point for the cheesy "Read My Mind" spoken song as Superman takes Lois Lane (Margot Kidder) on a romantic flight over Metropolis, which has aged poorly. But otherwise, <em>Superman</em> remains our favorite of the many adaptions and reboots centered on the character. (Skip the later "extended cut" with several deleted scenes added back in; Donner cut that footage for a reason, and the longer version is noticeably inferior to the theatrical release.)
	</p>

	<p>
		 
	</p>

	<p>
		<em>Superman</em>'s inclusion on this list is due entirely to a key plot element in the final act: Superman fails to save Lois during a major earthquake in California, and the grief-stricken superhero defies his father's moratorium on interfering in human history <a href="https://www.youtube.com/watch?v=LoCaeI5RffI" rel="external nofollow">by turning back time</a> so he can remedy his mistake. Sorry, Supes fans, but the time travel here doesn’t make the tiniest iota of sense.
	</p>

	<p>
		 
	</p>

	<p>
		Our standards are admittedly lax when it comes to the physical mechanism by which cinematic heroes journey through time, but “flying really fast around the Earth so that it reverses the direction of its rotation and sends it back to a previous moment” is such thoroughgoing lunacy that one must almost pause in admiration. Then we return to our senses and ask, “Why does Superman’s flight have any effect on the rotation of the Earth? And what does that rotation have to do with the direction of time? Do I get younger if I start twirling counterclockwise?” No, dear reader, you do not. Indeed, by the rules handed down by Einstein, Superman’s near-speed-of-light journey would actually send him into the future, not into the past.
	</p>

	<p>
		 
	</p>

	<div>
		<p>
			To its dubious credit, <i>Superman</i> pioneers two different flaws that will frequently recur in movies to come. First, time travel is portrayed as a miraculous cure-all, which is then never used again. Superman essentially goes back in time to save his girlfriend. This is admirable, but aren’t there other, more historically significant global disasters that could be averted by the same strategy? This is a narrative problem, not a scientific or logical one, but it rankles.
		</p>

		<p>
			 
		</p>
	</div>

	<div>
		<p>
			Then, of course, there is the flaw that almost always accompanies stories in which the past gets changed by time-travelers: Where did those time-travelers come from? We, the viewers, see a sequence of events that seems to make sense if we don’t think too hard. Lois Lane dies, Superman gets upset, he travels back in time, stops the events that led to Lois dying, and we live happily ever after. But at the end of this sequence, Superman still has the memory of Lois dying the first time around. Yet because he changed history, that event he remembers <i>never happened</i>. Lois certainly doesn’t remember it. How does he? One could try to finesse this question by introducing an alternative timeline, but the movie doesn’t do that (and first-timeline Lois would still be dead). This is the logical conundrum that plagues many time-travel stories to varying degrees of egregiousness.
		</p>

		<p>
			 
		</p>
	</div>

	<p>
		Entertainment Score: 9
	</p>

	<p>
		 
	</p>

	<p>
		Science Score: 1
	</p>
</div>

<div class="article-content post-page" itemprop="articleBody">
	<h2>
		<em>Time After Time</em> (1979)
	</h2>

	<p>
		<img alt="timetravel7-640x427.jpg" class="ipsImage" data-ratio="66.72" height="427" width="640" src="https://cdn.arstechnica.net/wp-content/uploads/2023/09/timetravel7-640x427.jpg">
	</p>

	<div>
		<em>H.G. Wells (Malcolm McDowell) time travels to 1970s San Francisco in pursuit of Jack the Ripper.</em>
	</div>

	<div>
		<em>Orion Pictures</em>
	</div>

	<p>
		 
	</p>

	<p>
		<a href="https://en.wikipedia.org/wiki/Time_After_Time_(1979_film)" rel="external nofollow"><em>Time After Time</em></a> also features H.G. Wells himself (Malcolm McDowell), time-traveling to San Francisco in the late 1970s in pursuit of Jack the Ripper—aka, his former good friend Dr. John Leslie Stevenson (David Warner), who used the time machine to evade arrest after his most recent murder. Wells thought he was heading into a socialist utopia and is shocked to discover that the future is anything but. As Stevenson puts it when Wells tracks him down, in 1893's London Stevenson was considered a monster—"here, I'm an amateur." Wells must thwart the killer's plan to permanently steal the machine so he can continue butchering women throughout time.
	</p>

	<p>
		 
	</p>

	<p>
		Writer/director Nicholas Meyer based his screenplay on the premise of Karl Alexander's novel of the same name. McDowell originally planned to model his speech after Wells' actual voice but changed his mind after hearing a 78 rpm recording of the author, purportedly "absolutely horrified" at Wells' accent and high-pitched squeaky voice. McDowell opted for a more typical posh London accent for his performance. But other aspects of Wells' life and work remain intact; he even "arrives" in the middle of a San Francisco museum exhibit in his honor, conveniently replacing his glasses that broke en route through time with a fresh pair carefully preserved within his writing desk. Those little touches make <em>Time After Time</em> a genuinely charming and entertaining film.
	</p>

	<p>
		 
	</p>

	<div>
		<p>
			If <i>The Time Machine</i> sticks safely with travel to the future while <i>Superman</i> monkeys shamelessly with the past, <i>Time After Time</i> is the first film on our list to intentionally use the possibility of altering the past to raise dramatic tension while ultimately explaining that everything is OK. It actually works pretty hard to make sense, even explaining how the time machine itself automatically returns to 1893 after Stevenson’s first trip, so it's there for Wells to use himself. It even explains why Wells climbs into the time machine in London and emerges in San Francisco: The physical machine itself continues to exist through time and had been moved in the meantime. (I guess Wells was time-traveling inside all along, somehow invisible to the moving company?)
		</p>

		<p>
			 
		</p>
	</div>

	<div>
		<p>
			But the real fun kicks in when Wells tries to convince his tentative love interest, Amy Robbins (Mary Steenburgen), of his story by traveling a few days into the future. There, they find a newspaper proclaiming that Robbins had just been the latest murder victim. That sets up a legitimate time-travel anomaly. But it's cleverly avoided when we learn that the true murder victim had been misidentified and wasn’t Robbins at all. To really wrap everything up, Robbins goes back with Wells to 1893, and they get married. History teaches us that H.G. Wells married his second wife, Amy Catherine Robbins, in 1895. This preserves a single sensible timeline—as long as there are no records of the historical Robbins existing before 1893.
		</p>

		<p>
			 
		</p>
	</div>

	<p>
		Entertainment Score: 8.5
	</p>

	<p>
		 
	</p>

	<p>
		Science Score: 8
	</p>

	<h2>
		<em>The Terminator</em> (1984)
	</h2>

	<p>
		<img alt="timetravel25-1-640x421.jpg" class="ipsImage" data-ratio="65.78" height="421" width="640" src="https://cdn.arstechnica.net/wp-content/uploads/2023/09/timetravel25-1-640x421.jpg">
	</p>

	<div>
		<em>"I'll be back": This film established the basic rules of James Cameron's sci-fi universe.</em>
	</div>

	<div>
		<em>Orion Pictures</em>
	</div>

	<p>
		 
	</p>

	<p>
		This is the <a href="https://en.wikipedia.org/wiki/The_Terminator" rel="external nofollow">blockbuster science fiction action film</a> that started it all, launching a hugely influential franchise and director James Cameron's highly impressive career. A cybernetic assassin, or Terminator (Arnold Schwarzenegger), travels back in time from 2029 to 1984 Los Angeles intent on killing a young woman named Sarah Connor (Linda Hamilton). Unbeknownst to her, she will give birth to a son, John Connor, who will lead a future Resistance against a synthetic intelligence called Skynet, created by the US government as a military defense.
	</p>

	<p>
		 
	</p>

	<p>
		The Resistance sends its own champion back in time: a soldier named Kyle (Michael Biehn), who falls in love with Sarah and fathers John. The film's focused, relentless, horror-inspired plot delivered plenty of thrills, violence, and snippets of humor. <em>The Terminator</em> racked up an impressive $89 million worldwide against its $6.4 million budget. <a href="https://en.wikipedia.org/wiki/Terminator_2:_Judgment_Day" rel="external nofollow"><em>Terminator 2: Judgement Day</em></a> will always be our franchise favorite by a long shot, but the original <em>Terminator</em> comes in at a solid second.
	</p>

	<p>
		 
	</p>

	<p>
		If <i>Superman</i> studiously ignores the potential inconsistencies in its treatment of time travel, <i>The Terminator</i> glories in them. They are the fulcrum around which the action pivots, although actual inconsistencies are largely avoided. The audience doesn’t raise too much fuss because the story is now told from the perspective of characters being visited from the future rather than going to the past themselves. They worry about their individual lives being in danger and the fate of the world. Philosophical coherence is low on their list of priorities.
	</p>

	<p>
		 
	</p>

	<div>
		<p>
			The time-travel technology is once again basically magic, but in a particularly hilarious way: travel happens via “Time Displacement Equipment,” which can send things backward in time but not forward (the opposite of what physics would suggest) and only works on organic tissue. Physics has nothing to say about that last bit, other than to roll its eyes and shake its head in disbelief. It does let us check out Schwarzenegger’s unclothed body, which was a major selling point in 1980s action movies.
		</p>

		<p>
			 
		</p>
	</div>

	<div>
		<p>
			Skynet’s goal in sending the Terminator back in time is to prevent the birth of John Connor, who in 2029 is leading the Resistance. The problem is clear: the Skynet of 2029 might be upset that John Connor is winning, but it is well aware of the existence of John Connor. If its plan had worked, John wouldn’t have been born. So the Skynet that would have come into existence, if any, wouldn’t be the same as the Skynet that set the plan in motion. Either that version of reality would cease to exist (when?), or multiple realities would be created. Or the plan was always doomed to fail.
		</p>

		<p>
			 
		</p>
	</div>

	<div>
		<p>
			The movie goes with “doomed to fail,” leaving us with a single consistent timeline, although the <i>threat</i> of a different timeline has to be taken seriously if there is to be any dramatic tension. So, partial credit. Future installments in the franchise would decide that single timelines are boring and branch off too many universes to keep track of. This has served both to open up new dramatic possibilities and to give filmmakers the right to ignore anything portrayed in earlier movies that they didn’t approve of.
		</p>

		<p>
			 
		</p>
	</div>

	<p>
		Entertainment Score: 9
	</p>

	<p>
		 
	</p>

	<p>
		Science Score: 3
	</p>
</div>

<div class="article-content post-page" itemprop="articleBody">
	<h2>
		<em>Back to the Future</em> (1985)
	</h2>

	<p>
		<img alt="timetravel6-640x427.jpg" class="ipsImage" data-ratio="66.72" height="427" width="640" src="https://cdn.arstechnica.net/wp-content/uploads/2023/09/timetravel6-640x427.jpg">
	</p>

	<div>
		<em>"You built a time machine... in a DeLorean?" That's the least of the time-travel issues.</em>
	</div>

	<div>
		<em>Universal Pictures</em>
	</div>

	<p>
		 
	</p>

	<p>
		No list like this would be complete without <a href="https://en.wikipedia.org/wiki/Back_to_the_Future" rel="external nofollow"><em>Back to the Future</em></a>, arguably one of the most influential time-travel movies ever made, as well as an iconic comedy of the 1980s. Marty McFly (Michael J. Fox) is accidentally transported back to 1955, thanks to his friend Doc Brown's (Christopher Lloyd) newly invented time machine—a plutonium-fueled DeLorean that goes into time-travel mode once it hits 88 mph. Marty inadvertently prevents his parents (Crispin Glover and Lea Thompson) from meeting and falling in love, placing his future in jeopardy. He must rectify that situation while a younger version of Doc helps him figure out how to generate the 1.21 gigawatts of energy needed to refuel the time machine to send Marty home.
	</p>

	<p>
		 
	</p>

	<p>
		<em>Back to the Future</em> is a terrific piece of entertainment, but scientifically, it has a lot to answer for. Director Robert Zemeckis co-wrote the script with Bob Gale, both of whom never liked the fact that most time-travel films followed the principle that the past was immutable. They specifically wanted to explore how the past being altered might affect the future, and the rest is film history.
	</p>

	<p>
		 
	</p>

	<div>
		<p>
			In <i>Avengers: Endgame</i> (see below), there is a scene in which our heroes are discussing time travel, and Scott Lang (Ant-Man) looks around in dismay and says, “So <i>Back to the Future’s</i> a bunch of bullshit?”
		</p>

		<p>
			 
		</p>

		<p>
			[Full disclosure: this scene is Sean’s most notable contribution to popular culture. He was a science consultant on <em>Endgame</em> and expressed some version of this sentiment in a meeting with the writers and directors. Because, sadly, it’s true. It's a great movie, and the DeLorean makes for an undoubtedly stylish magic box; but as far as time travel goes, <i>Back to the Future</i> is a bunch of bullshit.]
		</p>

		<p>
			 
		</p>
	</div>

	<div>
		<p>
			Throwing caution to the wind, <i>BttF</i> makes it perfectly clear that Marty’s trip to the past wreaks all kinds of havoc on the present. You might expect some hints that there are multiple timelines going on, but there is only one timeline, and it is an unholy mess. If you handed <i>Back to the Future</i> a logic textbook, it would disdainfully throw it over its shoulder like Luke throwing away the lightsaber that Rey hands to him in <i>The Last Jedi</i>.
		</p>

		<p>
			 
		</p>
	</div>

	<div>
		<p>
			Let's focus on one infamous element. As Marty inadvertently interferes with events that led to his parents first getting together, we see Marty’s brother and sister fade out of a photograph that was taken in 1985. There is no plausible timeline in which the photo is there but the siblings aren’t in it. In the words of Bob Gale, “If you think about it too much, it really doesn’t make any sense. Who is going to take a photo of an empty wishing well?” But it’s worse than that. Why does the photograph fade <i>then</i>, i.e., in 1985? Marty’s shenanigans happened back in 1955. What kind of mystical cross-temporal connection must we imagine to make sense of such a delayed reaction?
		</p>

		<p>
			 
		</p>
	</div>

	<div>
		<p>
			Sean did once try to work this out. Is there any conceivable theory under which <i>BttF</i>-style time travel could possibly make sense? He came up with a candidate theory, <a href="https://www.preposterousuniverse.com/podcast/2020/11/23/124-solo-how-time-travel-could-and-should-work/" rel="external nofollow">explaining it in a podcast</a>. Without going into too much detail, we need many timelines (one with the photograph, one without, etc.), and we also need a completely distinct “narrative time” representing the viewpoint of the audience watching the movie, stitching the one real timeline together from bits and pieces of all the alternative timelines.
		</p>

		<p>
			 
		</p>
	</div>

	<div>
		<p>
			Or we can just admit it’s a bunch of bullshit.
		</p>

		<p>
			 
		</p>
	</div>

	<p>
		Entertainment Score: 10
	</p>

	<p>
		 
	</p>

	<p>
		Science Score: 1
	</p>

	<h2>
		<em>Star Trek IV: The Voyage Home</em> (1986)
	</h2>

	<p>
		<img alt="voyagehome1-640x426.jpg" class="ipsImage" data-ratio="66.56" height="426" width="640" src="https://cdn.arstechnica.net/wp-content/uploads/2023/10/voyagehome1-640x426.jpg">
	</p>

	<div>
		<em>The former crew of the USS Enterprise travels to Earth's past to save a pair of humpback whales.</em>
	</div>

	<div>
		<em>Paramount Pictures</em>
	</div>

	<p>
		 
	</p>

	<p>
		The Star Trek franchise has engaged in its share of time-travel shenanigans, and <a href="https://en.wikipedia.org/wiki/Star_Trek_IV:_The_Voyage_Home" rel="external nofollow"><em>Star Trek IV: The Voyage Home</em></a> is a classic in that regard. This was the second film directed by Leonard Nimoy (who played the original Spock), a sequel to Nimoy's <a href="https://en.wikipedia.org/wiki/Star_Trek_III:_The_Search_for_Spock" rel="external nofollow"><em>Star Trek III: The Search for Spock</em></a> (1984) and completing a narrative arc that began with 1982's <a href="https://en.wikipedia.org/wiki/Star_Trek_II:_The_Wrath_of_Khan" rel="external nofollow"><em>Star Trek II: The Wrath of Khan</em></a>. Nimoy wanted to do something lighter with no clearcut villain and an environmental message (the plight of humpback whales): "No dying, no fighting, no shooting, no photon torpedoes, no phaser blasts, no stereotypical bad guy." He brought on Nicholas Meyer (see <em>Time After Time</em> above) to co-write a new script, in which the (now former) crew of the <em>USS Enterprise</em> time travel to 1980s Earth to bring back a pair of humpback whales—the only species capable of responding to the signal from an alien space probe back in their future that now threatens the planet.
	</p>

	<p>
		 
	</p>

	<p>
		The result was a film that recaptured some of the charm of <em>The Original Series,</em> grossing $133 million worldwide against its $26 million budget and snagging four Oscar nominations for cinematography and sound. Meyer's script has a lot of fun with the time travel "fish out of water" elements, most notably Spock and Kirk encountering <a href="https://www.youtube.com/watch?v=Zf5iwGZNY_Q" rel="external nofollow">an annoying punk rocker</a> on a public bus. (Spock performs his trademark Vulcan nerve pinch on the punk.) And who doesn't love McCoy griping in exasperation about primitive 20th-century medicine or Chekov earnestly asking random passersby about "nuclear wessels"?
	</p>

	<p>
		 
	</p>

	<div>
		<p>
			According to special relativity, motion is relative. There is no absolute notion of how fast you are going, only a relative notion of your velocity with respect to something else. But there is an unbreakable speed limit, the speed of light, which looks the same to everyone. We can imagine hypothetical “tachyon” particles that can <i>only</i> go faster than light, but they don’t seem to exist in the real world, and ordinary particles can only move more slowly. If you could go faster than light, all hell would break loose—for example, it would be easy to travel backward in time.
		</p>

		<p>
			 
		</p>
	</div>

	<div>
		<p>
			The Star Trek universe very much relies on the idea that you can go faster than light; that’s what warp drive is all about. But there is an absolute notion of how fast you are going. So, Star Trek has to appeal to some laws of physics that are not compatible with Einstein’s theory. (This is fine, of course—it’s a movie.) If there is an absolute standard of rest, then going faster than light no longer immediately implies the ability to go back in time. Indeed, whenever Star Trek has used time travel, something over and above ordinary warp drive is needed; in <i>The Voyage Home</i>, they have to pass perilously close to the Sun. That doesn’t make actual sense, but it counts as a vague gesture toward general relativity, i.e., gravity is the curvature of spacetime. And the time travel is not the kind of magic-box-with-flashing-lights that we so often see in movies; it happens in a spaceship and involves astrophysically relevant masses and distances, which is all to the good.
		</p>

		<p>
			 
		</p>
	</div>

	<div>
		<p>
			Moreover, at least in this particular movie, the time travel is completely consistent. The crew worries about changing the past, but for the most part, they don’t actually do so. One possible exception is nicely finessed: Scotty offers a bit of 23rd-century technology (a formula for transparent aluminum) to a 20th-century engineer. Bones worries that this might change the course of history. Scotty replies: “How do we know he didn’t invent the thing?” This is clever but fraught. If the rules of time travel in this universe are “whatever happened happened,” then indeed Scotty’s offer is benign—necessary, in fact, if that’s what actually happened. But if those are not the rules, presumably a new timeline is born. Maybe one should be a bit more clear on what the rules are before messing around.
		</p>

		<p>
			 
		</p>
	</div>

	<div>
		<p>
			Let’s assume a single consistent timeline. One could reasonably ask who actually invented the formula for transparent aluminum. Textbooks in the 23rd century would have credited this 20th-century engineer, but we know that he got the idea from a 23rd-century visitor. The idea has no starting point; it travels in a closed loop. This is sometimes described as a “paradox,” but isn’t, really—it's not illogical; it's just weird from the perspective of our usual intuition.
		</p>

		<p>
			 
		</p>
	</div>

	<div>
		<p>
			One could question why Star Fleet doesn’t use time travel to solve its problems more often. In the larger Star Trek universe, time travel eventually becomes commonplace, leading to the “Temporal Wars,” after which the technology was banned. I’m sure that will completely prevent any future problems.
		</p>

		<p>
			 
		</p>
	</div>

	<p>
		Entertainment Score: 6
	</p>

	<p>
		 
	</p>

	<p>
		Science Score: 8
	</p>
</div>

<div class="article-content post-page" itemprop="articleBody">
	<h2>
		<em>Bill and Ted's Excellent Adventure</em> (1989)
	</h2>

	<p>
		<img alt="timetravel12-640x424.jpg" class="ipsImage" data-ratio="66.25" height="424" width="640" src="https://cdn.arstechnica.net/wp-content/uploads/2023/09/timetravel12-640x424.jpg">
	</p>

	<div>
		<em>Bill and Ted's Golden Rule: "Be excellent to each other."</em>
	</div>

	<div>
		<em>Orion Pictures</em>
	</div>

	<p>
		 
	</p>

	<p>
		Nobody expected this goofy, slapstick comedy to become a time-honored favorite that spawned two popular sequels (1991's <a data-uri="a08af825374deefab9c7f4c24825def9" href="https://en.wikipedia.org/wiki/Bill_%26_Ted%27s_Bogus_Journey" rel="external nofollow"><em>Bill &amp; Ted's Bogus Journey</em></a>, and 2020's <em><a data-uri="e1651169b2136469ec2733cab3f39f97" href="https://arstechnica.com/gaming/2020/08/party-on-dudes-meet-the-creative-team-behind-bill-and-ted-face-the-music/" rel="external nofollow">Bill and Ted Face the Music)</a>.</em> But audiences couldn't resist the winsome charm of Bill (Alex Winter) and Ted (Keanu Reeves), two scattered-brained high school students with big hearts and endless optimism who are in danger of flunking history. ("Dude. We are about to fail most egregiously.") If that happens, Ted's father will ship him off to a military academy, thus breaking up their band, Wyld Stallyns. But the band is destined to usher in a future utopia, which is now threatened.
	</p>

	<p>
		 
	</p>

	<p>
		With the help of a time machine in the form of a phone booth—provided by Rufus (George Carlin) from the year 2688—the pair travels through history, meeting Socrates, Billy the Kid, Sigmund Freud, Beethoven, Genghis Khan, Joan of Arc, and Abraham Lincoln, among others, bringing them back to 1989 for the history report to end all history reports. Napoleon naturally wanders off to the <a href="https://www.youtube.com/watch?v=6GmNwR3rQ0I" rel="external nofollow">Waterloo local water park</a> at one point, while the other historical figures wreak havoc <a href="https://www.youtube.com/watch?v=Q8UGAbAPPkk" rel="external nofollow">at the mall</a>. Watching Beethoven rock out on multiple electronic keyboards while Joan of Arc takes over an aerobics class is priceless. <em>Bill and Ted's Excellent Adventure</em> wasn't exactly a box office smash, grossing a modest $40 million against its $10 million budget, but it's a film audiences have returned to again and again when they crave silly feel-good escapist fare.
	</p>

	<p>
		 
	</p>

	<div>
		<p>
			If it’s been a while since you’ve seen <i>Bill &amp; Ted</i>, you might remember the time travel as mostly harmless. It’s completely silly, of course. But historical figures are brought to the present and safely returned; maybe they just thought nobody would believe them if they told their stories. The bad news is that the plot never should have happened. Rufus comes to 1989 to help Bill and Ted pass their history exam. But they must have passed their exam, since Rufus exists and knows about their effect on the future. So what is he worried about?
		</p>

		<p>
			 
		</p>
	</div>

	<div>
		<p>
			The good news is that <i>Bill &amp; Ted</i> contains the <a href="https://www.youtube.com/watch?v=GiynF8NQzgo" rel="external nofollow">single most brilliant use of time-travel logic</a> in cinematic history. The boys need their father’s keys, but don’t have time to fetch them. So in an intellectual leap that puts so many other time-travel protagonists to shame, they remember that they have a time machine. Bill: “After the report, we’ll time travel to two days ago, steal your dad’s keys, and leave ‘em here!” And indeed, they find the keys exactly where they did (will?) leave them, after their future selves pilfer them. Ted: “So, after the report, we can’t forget to do this, otherwise it won’t happen. But it did happen!”
		</p>

		<p>
			 
		</p>

		<p>
			All time travel stories should be like this.
		</p>

		<p>
			 
		</p>
	</div>

	<p>
		Entertainment Score: 7
	</p>

	<p>
		 
	</p>

	<p>
		Science Score: 4
	</p>

	<h2>
		<em>Timecop</em> (1994)
	</h2>

	<p>
		<img alt="timetravel14-640x427.jpg" class="ipsImage" data-ratio="66.72" height="427" width="640" src="https://cdn.arstechnica.net/wp-content/uploads/2023/09/timetravel14-640x427.jpg">
	</p>

	<div>
		<em>We’re here for scantily clad van Damme gymnastics, not for narrative logic.</em>
	</div>

	<div>
		<em>Universal Pictures</em>
	</div>

	<p>
		 
	</p>

	<p>
		Directed by Mike Richardson, <a href="https://en.wikipedia.org/wiki/Timecop" rel="external nofollow"><em>Timecop</em></a> is based on a three-part Dark Horse Comics anthology story written by Mark Verheiden (who co-wrote the screenplay with Richardson). It's basically a cross between <em>Lethal Weapon</em> and <em>The Terminator</em> while never being as good as either of those two films. But it remains star Jean-Claude van Damme's most successful film—if only for <a href="https://www.youtube.com/watch?v=ehgV_ZC2KSU" rel="external nofollow">the famous scene</a> where van Damme jumps into the splits on a kitchen counter clad only in his underwear. Van Damme plays Max Walker, a DC Metro police officer who becomes an agent with the Time Enforcement Commission (TEC) in 1994 after the death of his wife Melissa (Mia Sara) in an attack by mysterious assailants. Ten years later, he must foil the plans of a corrupt senator (Ron Silver) who has been abusing the TEC's time-travel technology to raise funds for his presidential campaign, altering the future in the process.
	</p>

	<p>
		 
	</p>

	<div>
		<p>
			<i>Back to the Future</i> gave license to time-travel stories to allow travel to the past to completely change the future, and filmmakers subsequently saw no reason to coax this particular genie back into its bottle. <i>Timecop</i> is constantly sending its characters into the past to address their present-time challenges, leaving them to return to a world that is changed in illogical but important ways. At least there are a couple of amusing wrinkles to contemplate. One is the statement that time travel allows you to visit the past and return to the present but <em>not</em> go to the future. That’s the opposite of the truth, as we currently understand it.
		</p>

		<p>
			 
		</p>
	</div>

	<div>
		<p>
			The other is just for the physicists, or perhaps for players of the video game <i>Portal</i>. Max Walker travels back to 1929 to apprehend a rogue time traveler planning to profit from the stock market crash. The suspect jumps out a window to his presumed doom until Walker follows suit and time-travels them both to safety. But why should a time jump change your momentum? It would be more realistic if both characters returned to the present and splatted into the floor with deadly force. At least the miscreant is sentenced to return to his original trajectory as a particularly fiendish version of the death penalty.
		</p>

		<p>
			 
		</p>
	</div>

	<div>
		<p>
			One last point: The movie begins with the death of the hero’s beloved wife, and you can probably guess that he will travel back in time to save her. So at the end of the movie, Walker returns to his now-living wife and their young son. But Walker doesn’t remember anything about his son’s life, which has been going on for several years now. Awkward. Also tragic, since presumably there was a version of Walker who has been raising this boy for several years now. What happened to him? For this reason, even though the time travel is, strictly speaking, no more illogical than <em>Back to the Future</em>, it gets an even worse science score. It’s one thing to be illogical. It’s quite another to leave us to contemplate the consequent existential horror of it all.
		</p>

		<p>
			 
		</p>
	</div>

	<p>
		Entertainment Score: 3
	</p>

	<p>
		 
	</p>

	<p>
		Science Score: 0
	</p>
</div>

<div class="article-content post-page" itemprop="articleBody">
	<h2>
		<em>12 Monkeys</em> (1995)
	</h2>

	<p>
		<img alt="timetravel4-640x386.jpg" class="ipsImage" data-ratio="60.31" height="386" width="640" src="https://cdn.arstechnica.net/wp-content/uploads/2023/09/timetravel4-640x386.jpg">
	</p>

	<div>
		<em>Cinematic time travel came of age with Terry Gilliam's sci-fi masterpiece.</em>
	</div>

	<div>
		<em>Universal Pictures</em>
	</div>

	<p>
		 
	</p>

	<p>
		Director Terry Gilliam's <a href="https://en.wikipedia.org/wiki/12_Monkeys" rel="external nofollow"><em>12 Monkeys</em></a> is our top choice for a film that combines terrific storytelling and time-travel logic in a near-perfect union. It's inspired by a 1962 French short film called <i><a href="https://en.wikipedia.org/wiki/La_Jet%C3%A9e" title="La Jetée" rel="external nofollow">La Jetée</a></i>. The film stars Bruce Willis as a convict from 2035 named James Cole, who is sent back in time to investigate the origin of a a deadly virus that appeared in 1996 and wiped out almost all of humanity, forcing any survivors to live underground.
	</p>

	<p>
		 
	</p>

	<p>
		A terrorist group called the Army of the 12 Monkeys is the prime suspect. The hope is that if the original virus can be found, it will help scientists in 2035 devise a cure. But Cole arrives in 1990 instead of 1996 and ends up in a mental institution, where he meets a fellow patient named Jeffrey Goines (Brad Pitt, in an Oscar-nominated performance). And he's haunted by a recurring dream involving a shooting at an airport. There are twists aplenty, but the viewer never loses the thread of the nonlinear plot, and the look and feel of the film harkens back to Gilliam's 1985 masterpiece <em>Brazil</em>.
	</p>

	<p>
		 
	</p>

	<div>
		<p>
			Here is where cinematic time travel comes of age. Admittedly, no real effort is put into explaining how the time machine actually works, other than Gilliam’s signature steampunk wires and bellows. But the movie does a wonderful job of making you think that the future is being changed, before ultimately revealing that everything fits together in a beautifully interlocking whole. Willis stumbles around in the past, affecting many things without ever deviating from how things had always been.
		</p>

		<p>
			 
		</p>
	</div>

	<p>
		Entertainment Score: 9.5
	</p>

	<p>
		 
	</p>

	<p>
		Science Score: 9
	</p>

	<h2>
		<em>Donnie Darko</em> (2001)
	</h2>

	<p>
		<img alt="timetravel21-640x423.jpg" class="ipsImage" data-ratio="66.09" height="423" width="640" src="https://cdn.arstechnica.net/wp-content/uploads/2023/09/timetravel21-640x423.jpg">
	</p>

	<div>
		<em>That mysterious fellow in a creepy rabbit costume will haunt your dreams.</em>
	</div>

	<div>
		<em>Flower Films</em>
	</div>

	<p>
		 
	</p>

	<p>
		This <a href="https://en.wikipedia.org/wiki/Donnie_Darko" rel="external nofollow">2001 sci-fi psychological thriller</a> was writer/director Richard Kelly's first feature film. Jake Gyllenhaal stars as Donnie, a psychologically troubled teenager who meets a mysterious figure in a creepy rabbit costume named Frank while sleepwalking one night. Frank tells him the world will end in 28 days, six hours, 42 minutes, and 12 seconds. When Donnie wakes up on a local golf course and goes home, he discovers a jet engine has mysteriously crashed into his bedroom, so his sleepwalking saved him from certain death. He keeps seeing Frank as events unfold, ultimately leading to tragedy and a strange vortex forming over Donnie's house that sends Donnie back in time to be crushed by the jet engine hitting his bedroom.
	</p>

	<p>
		 
	</p>

	<p>
		<em>Donnie Darko</em> had the misfortune to hit theaters six weeks after the September 11, 2001, terrorist attacks; audiences were just not in the mood for any film in which a crashing plane featured prominently. It has since attracted a significant cult following. Despite its flaws, there's something about this strange film that sticks with you, and it is certainly a unique, original vision.
	</p>

	<p>
		 
	</p>

	<p>
		Kelly released <a href="https://en.wikipedia.org/wiki/Donnie_Darko:_The_Director%27s_Cut" rel="external nofollow">a director's cut</a> in 2004 that expounded (poorly) on the philosophical and scientific underpinnings of his fictional world in greater detail, involving the spontaneous creation of an unstable Tangent Universe in which the film's events play out. Donnie's ultimate demise leads to the collapse of that Tangent Universe and restores the Primary Universe. Constructing a complete and internally coherent theory of the physical universe turns out to be hard, even when the universe is the real one and you can do experiments to check your math. A completely different kind of universe is even harder. So it’s maybe not surprising that the overexplained director’s cut of <i>Donnie Darko</i> wasn’t as satisfying as the more vague original. If we don’t know too much about what’s going on, it’s harder to complain about inconsistencies.
	</p>

	<p>
		 
	</p>

	<div>
		<p>
			In the original movie, all we really know by the end is that a single jet engine falls off a plane on October 30, travels through some kind of wormhole, and lands on Donnie’s house on October 2. There are clearly two timelines: one where Donnie happens not to be home and is safe, and then an altered one where he is in bed and the engine kills him but, in the process, prevents the subsequent accident that kills his girlfriend Gretchen (Jena Malone). The upshot is pretty simple: Donnie has traveled back in time, changed the past, and that’s it. The “wormhole” is nothing like what physicists envision, although Kelly did take some inspiration from reading Stephen Hawking’s <i>A Brief History of Time</i>. There are also Donnie’s visions, which somehow come from the future, or at least rely on knowledge of future events. Physicists don’t really go there.
		</p>

		<p>
			 
		</p>
	</div>

	<p>
		Entertainment Score: 5
	</p>

	<p>
		 
	</p>

	<p>
		Science Score: 4
	</p>
</div>

<div class="article-content post-page" itemprop="articleBody">
	<h2>
		<em>Primer</em> (2004)
	</h2>

	<p>
		<img alt="timetravel10-640x431.jpg" class="ipsImage" data-ratio="67.34" height="431" width="640" src="https://cdn.arstechnica.net/wp-content/uploads/2023/09/timetravel10-640x431.jpg">
	</p>

	<div>
		<em>Two engineers accidentally figure out how to time travel in this indie cult favorite.</em>
	</div>

	<div>
		<em>IFC Films</em>
	</div>

	<p>
		 
	</p>

	<p>
		This <a href="https://en.wikipedia.org/wiki/Primer_(film)" rel="external nofollow">2004 indie film</a> about two engineers who accidentally figure out how to time travel has a strong cult following despite a confusing, unnecessarily complicated plot that makes <a href="https://en.wikipedia.org/wiki/Tenet_(film)" rel="external nofollow"><em>Tenet</em></a> (discussed below) seem simple and straightforward. Writer/director Shane Carruth (who also co-stars) <a href="https://web.archive.org/web/20120211115602/http://movies.about.com/od/primer/a/primer102104_2.htm" rel="external nofollow">has said</a> he deliberately chose to make the plot incomprehensible to capture the inherent confusion of what he thought it would be like to experience the disorienting effects of time travel (namely, cumulative interference). Honestly, it might have worked, except he also deliberately chose to avoid any of the usual expository dialogue with regard to the scientific elements. This, too, can work in principle. Too often, exposition is a clumsy "<a href="https://tvtropes.org/pmwiki/pmwiki.php/Main/AsYouKnow" rel="external nofollow">as you know, Bob</a>" affair. It's great that Carruth wanted authentic science-speak, but you've got to have a clear narrative as a trade-off.
	</p>

	<p>
		 
	</p>

	<p>
		Think of it as a good storytelling uncertainty principle: You can obfuscate the plot and not litter your dialogue with jargon, or you can keep the jargon and clarify the plot, even if it's just via a few well-placed signposts. Pick one. And while Carruth's <a href="https://web.archive.org/web/20120211115602/http://movies.about.com/od/primer/a/primer102104_2.htm" rel="external nofollow">overarching theme</a> is the breakdown of Abe's (David Sullivan) and Aaron's (Carruth) friendship, neither character is sufficiently fleshed out to the extent that we care about their eventual estrangement. That said, Carruth did a great job making the most of his shoestring $7,000 budget; the stripped-down aesthetics of the production design work very well. But <em>Primer</em> is most certainly <em>not</em> the best time-travel movie yet made. It's more a cautionary tale of a filmmaker being a bit too clever for their own good.
	</p>

	<p>
		 
	</p>

	<p>
		As for the science, the basic idea is that Aaron and Abe are trying to build a device to counter the effects of gravity by creating a room-temperature superconductor (a <a href="https://arstechnica.com/science/2023/08/whats-going-on-with-the-reports-of-a-room-temperature-superconductor/" rel="external nofollow">hot topic</a> in physics this year, albeit a <a href="https://arstechnica.com/science/2023/09/the-room-temperature-superconductor-that-wasnt/" rel="external nofollow">controversial one</a>) that exploits the <a href="https://en.wikipedia.org/wiki/Meissner_effect" rel="external nofollow">Meissner effect</a> to remove the magnetic field inside a plain gray box large enough to fit one person. (Carruth has said he was partly inspired by Feymann diagrams and the fact that elementary particle interactions are the same regardless of whether they happen "forward" and "backward" in time.)
	</p>

	<p>
		 
	</p>

	<div>
		<p>
			We worry that <i>Primer</i> is so confusing that it bamboozled people into thinking that it would ultimately make sense if they could just put the pieces together. It doesn’t actually make sense. The time machine itself works pretty simply. You turn it on, wait a while, and then climb in and travel back in time to the moment you turned it on. The limitation that you can’t travel to times earlier than you turned the machine on is actually very realistic—closed timelike curves in relativity would have exactly that feature. But to travel around one, you would need a spaceship, not a standard magic box with some science buzzwords attached.
		</p>

		<p>
			 
		</p>
	</div>

	<div>
		<p>
			But the selling point of <i>Primer</i> isn’t the mechanics of time travel, it’s the consequences thereof. The characters are constantly interfering with past events, at one point even trying to prevent the time machine from being built in the first place. Multiple versions of history accumulate and overwrite each other. Is there any one sensible story to be told when the dust settles? We honestly don’t know. But the film has launched a thousand <a href="https://www.thisisbarry.com/film/primer-2004-movie-plot-ending-explained/" rel="external nofollow">web pages</a> and videos that gamely attempt to bring order to the chaos.
		</p>

		<p>
			 
		</p>
	</div>

	<p>
		Entertainment Score: 2
	</p>

	<p>
		 
	</p>

	<p>
		Science Score: 3
	</p>

	<h2>
		<em>Timecrimes</em> (2007)
	</h2>

	<p>
		<img alt="timetravel26-640x427.jpg" class="ipsImage" data-ratio="66.72" height="427" width="640" src="https://cdn.arstechnica.net/wp-content/uploads/2023/09/timetravel26-640x427.jpg">
	</p>

	<div>
		<em>Who wouldn't be freaked out by the sight of a knife-wielding figure with bloody bandages on his face?</em>
	</div>

	<div>
		<em>Karbo Vintas Entertainment</em>
	</div>

	<p>
		 
	</p>

	<p>
		Written and directed by Nacho Vigalondo, this twisty, darkly humorous <a href="https://en.wikipedia.org/wiki/Timecrimes" rel="external nofollow">Spanish sci-fi thriller</a> was partly inspired by a 1983 comic one-off called <em>Chromocops</em> by Frank Miller and Dave Gibbons. The film centers on a middle-aged man named Héctor (Karra Elejalde), who is renovating a house in the countryside with his wife Clara (Candela Fernández). One day, he finds a young woman naked and unconscious on the ground, and a mysterious man with bloodied bandages on his face stabs Héctor in the arm. A local scientist (Vigalondo) offers help by hiding Héctor in a strange mechanical device—but it's a time machine that sends Héctor back one hour in time, snaring him in a causal loop with multiple versions of himself. Wacky hijinks ensue.
	</p>

	<p>
		 
	</p>

	<div>
		<p>
			If <i>12 Monkeys</i> demonstrated that time travel can be dramatic and compelling even with just a single consistent timeline, <i>Timecrimes</i> boils that notion down to its essence, letting multiple time-shifted copies of the same character interact with each other in startling ways. Everything that happens makes perfect sense in retrospect, and you don’t need to watch more than once to follow the plot. Once it becomes clear that time travel is involved and there is a character whose face is hidden in bandages, it doesn’t take too much to guess that we’re seeing the main character come back from the future, but the way it works out is anything but obvious.
		</p>

		<p>
			 
		</p>
	</div>

	<p>
		Entertainment Score: 6.5
	</p>

	<p>
		 
	</p>

	<p>
		Science Score: 9
	</p>
</div>

<div class="article-content post-page" itemprop="articleBody">
	<h2>
		<em>Hot Tub Time Machine</em> (2010)
	</h2>

	<p>
		<img alt="timetravel5-640x427.jpg" class="ipsImage" data-ratio="66.72" height="427" width="640" src="https://cdn.arstechnica.net/wp-content/uploads/2023/09/timetravel5-640x427.jpg">
	</p>

	<div>
		<em>The title of this gross-out screwball bro-comedy pretty much says it all.</em>
	</div>

	<div>
		<em>MGM</em>
	</div>

	<p>
		 
	</p>

	<p>
		The title pretty much says it all. There's a hot tub that turns out to be a time machine, transporting three middle-aged, depressed friends (and one teenaged nephew) back to their wild 1986 weekend at the Kodiak Valley Ski Resort. Directed by Steve Pink, <a href="https://en.wikipedia.org/wiki/Hot_Tub_Time_Machine" rel="external nofollow"><em>Hot Tub Time Machine</em></a> stars John Cusack, Rob Corddry, Craig Robinson, and Clark Duke, with a cameo by Chevy Chase as a hot tub repairman who might know more about what's happening than he's telling. Can the guys manage not to interfere with their past selves and irrevocably change the future while they figure out how to get back to their own time? It's a classic gross-out screwball bro-comedy (there are both R-rated and unrated versions) <em>a la</em> <a href="https://en.wikipedia.org/wiki/The_Hangover" rel="external nofollow"><em>The Hangover</em>,</a> and the film is much better and funnier than the ludicrous title might suggest, thanks in large part to its hugely likable cast. Pink leans into the silly, and Josh Heald's script pokes playful fun at all the classic time-travel movie tropes.
	</p>

	<p>
		 
	</p>

	<div>
		<p>
			You will not be surprised to learn that <i>Hot Tub Time Machine</i> doesn’t work too hard to maintain scientific plausibility in its portrayal of time travel. But there are nevertheless interesting and novel philosophical implications that the movie explores. This is the first movie on our list where it’s the character’s minds that travel backward in time, not their physical bodies; they end up inhabiting the bodies of their younger selves. (<i>Peggy Sue Got Married </i>did something analogous as early as 1986.) That’s not really a thing, scientifically speaking.
		</p>

		<p>
			 
		</p>
	</div>

	<div>
		<p>
			Is it really time travel at all? Sure—the characters’ actions in the past can, and do, change the future. And in a twist, those changes are largely for the better, at least from the characters’ perspectives. This is a departure from the standard time-travel nostrum that any change to the past runs the danger of making things immeasurably worse in the future.
		</p>

		<p>
			 
		</p>
	</div>

	<div>
		<p>
			Of course, it still makes no sense, bringing up the same kinds of issues we encountered with <i>Timecop</i>. Three of the characters leap back to their present, while one of them stays behind and lives through the intervening years once again. What were the other three doing for those years? Did their accumulated memories get coldly erased when the original characters returned from their temporal journey? Do we really care enough to ask?
		</p>

		<p>
			 
		</p>
	</div>

	<p>
		Entertainment Score: 6.5
	</p>

	<p>
		 
	</p>

	<p>
		Science Score: 2
	</p>

	<h2>
		<em>Looper</em> (2012)
	</h2>

	<p>
		<img alt="timetravel1-640x427.jpg" class="ipsImage" data-ratio="66.72" height="427" width="640" src="https://cdn.arstechnica.net/wp-content/uploads/2023/09/timetravel1-640x427.jpg">
	</p>

	<div>
		<em>It's fresh and entertaining as storytelling but the time-travel science leaves much to be desired.</em>
	</div>

	<div>
		<em>TriStar Pictures</em>
	</div>

	<p>
		 
	</p>

	<p>
		Directed by Rian Johnson, <a href="https://en.wikipedia.org/wiki/Looper_(film)" rel="external nofollow"><em>Looper</em></a> is a strikingly original dystopian time-travel tale. In 2044, a young man named Joe (Joseph Gordon-Levitt) works as an assassin (or "looper") for a crime syndicate in Kansas City. The twist: The targets are sent back in time, hoods over their heads, from the year 2074, since it has become impossible to dispose of bodies undetected in the future. Loopers get paid in silver bars that are attached to the targets from the future. Should a looper live until 2074, he (or she) will be sent back in time to be killed by their younger selves, thereby "closing the loop" and terminating their contract. But what happens when a looper fails to kill their older self? That's Joe's dilemma when he encounters his older self (Bruce Willis) and the latter escapes.
	</p>

	<p>
		 
	</p>

	<p>
		As fresh and entertaining as <em>Looper</em> might be on the storytelling scale, its time-travel science leaves much to be desired. One of the <a href="https://www.youtube.com/watch?v=a1zyHJh6ra0" rel="external nofollow">most memorable scenes</a> shows Joe's friend Seth (Paul Dano) in the present timeline being captured by the syndicate's "Gat Men" (basically enforcers), who are after his escaped older self. They carve an address into his arm, which instantly appears on the arm of Old Seth (Frank Brennan). Then the Gat Men begin methodically cutting off Seth's body parts as Old Seth desperately races to that address, losing fingers, a nose, and so forth before he is killed upon reaching his destination. It works incredibly well narratively, especially since we are never shown the graphic amputations on young Seth; just the aftermath on Old Seth. But as science? Not so much.
	</p>

	<p>
		 
	</p>

	<div>
		<p>
			This movie embodies almost every way in which time travel might fail to make sense. The time-traveling victims materialize suddenly in the past, without any attempt at scientific justification. Joe’s actions dramatically change the future, so that he never would have come back to the present to set them in motion. Old Joe’s memories become sharp or fuzzy depending on whether time is about to be altered. (In the finished movie, Willis gruffly dismisses the idea that he should try to explain this, but there is a deleted scene in which he gives it a shot.)
		</p>

		<p>
			 
		</p>
	</div>

	<div>
		<p>
			And then, of course, there's that finger-cutting scene, a clear callback to the fading photograph from <i>Back to the Future</i>. Once more, it's hard to imagine how Seth’s fingers know when to disappear. When we think about it, it’s even worse than <i>BttF</i>, because Old Seth still has the memory of having had those fingers, even as he sees them disappearing before his eyes. So if we want to appeal to a theory where multiple timelines are knitted together in narrative time, we're forced to add one more zany feature: <a href="https://en.wikipedia.org/wiki/Mind%E2%80%93body_dualism" rel="external nofollow">mind-body dualism</a>, as in <i>Hot Tub Time Machine</i>. Seth’s final body has lived a different history than his final mind. <i>Looper</i>’s time-travel mechanics fail to make any normal kind of sense, but they do so in such an intentional way that it has to count for something.
		</p>

		<p>
			 
		</p>
	</div>

	<p>
		Entertainment Score: 8.5
	</p>

	<p>
		 
	</p>

	<p>
		Science Score: 4
	</p>
</div>

<div class="article-content post-page" itemprop="articleBody">
	<h2>
		<em>Safety Not Guaranteed</em> (2012)
	</h2>

	<p>
		<img alt="timetravel18-640x421.jpg" class="ipsImage" data-ratio="65.78" height="421" width="640" src="https://cdn.arstechnica.net/wp-content/uploads/2023/09/timetravel18-640x421.jpg">
	</p>

	<div>
		<em>A moving exploration of why humans are so fascinated by the prospect of traveling back in time.</em>
	</div>

	<div>
		<em>FimlDistrict</em>
	</div>

	<p>
		 
	</p>

	<p>
		Director Colin Trevorrow shot <a href="https://en.wikipedia.org/wiki/Safety_Not_Guaranteed" rel="external nofollow">this understated indie</a> Sundance favorite on a shoestring budget with old Panavision lenses to capture the visual style and tone of 1970s auteur <a href="https://en.wikipedia.org/wiki/Hal_Ashby" rel="external nofollow">Hal Ashby</a> (<em>Harold and Maude, Shampoo, Being There</em>). Screenwriter Derek Connolly was inspired by a 1997 joke ad in <em>Backwoods Home</em> by the magazine's editor, John Silveira, seeking "someone to go back in time with me" and including the line "safety not guaranteed." (Silveira was shocked to receive thousands of letters in response.)  The film uses the ad's wording almost verbatim.
	</p>

	<p>
		 
	</p>

	<p>
		Aubrey Plaza stars as Darius, a disaffected recent college graduate interning at Seattle Magazine, who joins reporter Jeff (Jake Johnson) and fellow intern Arnau (Karan Soni) on a trip to Ocean Shores to track down the person who placed the ad: a paranoid grocery clerk named Kenneth (Mark Duplass). Darius goes undercover as a respondent to Kenneth's ad, and the two slowly bond over mutual loss in their pasts. Is Kenneth crazy, or is he really building a time machine? Much of the film hints at the former until the final shot. <em>Safety Not Guaranteed</em> is frankly rather light on the time-travel science. It excels in its moving exploration of why humans are so fascinated with the notion of being able to travel back in time—usually because so many of us long for the chance to right a wrong or correct a tragic mistake.
	</p>

	<p>
		 
	</p>

	<div>
		<p>
			At this point in the maturation of time travel as a cinematic genre, most stories fall pretty cleanly into one of two distinct categories: “this is going to make sense, I promise” or “let’s just roll with it.” <i>Safety Not Guaranteed</i> is squarely in the latter. Kenneth wants to go to the past to save his former girlfriend Belinda, but it’s discovered that Belinda is still alive. She claims that Kenneth was never her boyfriend and gives a very different account of the accident that supposedly killed her.
		</p>

		<p>
			 
		</p>
	</div>

	<div>
		<p>
			When confronted with these inconvenient facts, Kenneth is able to explain them: He did (will?) actually travel back to the past and save Belinda, after all. This almost makes sense, even with just a single consistent timeline. But not really. The Kenneth we see in the movie has clearly lived through Belinda’s death and the aftermath, which shouldn’t be possible in a world where Belinda is currently alive and well—unless Kenneth is just lying about things, which seems completely plausible. That is ultimately the point, as the movie cares more about relationships and how we remember the past than the explicit mechanics of time travel.
		</p>

		<p>
			 
		</p>
	</div>

	<p>
		Entertainment Score: 7.5
	</p>

	<p>
		 
	</p>

	<p>
		Science Score: 3
	</p>

	<h2>
		<em>Predestination</em> (2014)
	</h2>

	<p>
		<img alt="timetravel17-640x422.jpg" class="ipsImage" data-ratio="65.94" height="422" width="640" src="https://cdn.arstechnica.net/wp-content/uploads/2023/09/timetravel17-640x422.jpg">
	</p>

	<div>
		<em>This film is a loyal adaptation of Robert A. Heinlein's 1959 short story "—All You Zombies—."</em>
	</div>

	<div>
		<em>Stage 6 Films</em>
	</div>

	<p>
		 
	</p>

	<p>
		This <a href="https://en.wikipedia.org/wiki/Predestination_(film)" rel="external nofollow">2014 sci-fi action thriller</a> stars Ethan Hawke as Agent Doe with the Temporal Bureau, which is devoted to traveling back in time to prevent crimes from being committed. Doe is tasked with preventing the March 1975 bombing of a New York City public building but doesn't quite succeed, suffering severe burns as a result. An unseen person helps him grab his time-travel device to return to the Bureau in 1992, where he undergoes facial reconstruction surgery; his vocal cords have also been badly damaged, altering his voice. The Bureau wants him to retire but sends him back to 1970 for one final mission. Spanning events in 1945, 1963, and 1985, as well as the 1970s, <em>Predestination</em> is primarily concerned with whether or not it's possible to change the future, even with the advent of time travel. But the various parts don't add up to a compelling whole; the film flopped at the box office, grossing just $4.8 million against its $5 million budget.
	</p>

	<p>
		 
	</p>

	<div>
		<p>
			<i>Predestination</i> is a loyal adaptation of Robert A. Heinlein's 1959 short story "<a href="https://en.wikipedia.org/wiki/All_You_Zombies" rel="external nofollow">—All You Zombies—</a>," which has been held up as the last word in time-travel “paradoxes.” The main character is revealed to be their own mother as well as their own father. It’s the closed-loop problem we had with transparent aluminum in <i>Star Trek: The Voyage Home</i>, but now with an honest flesh-and-blood person rather than an abstract idea.
		</p>

		<p>
			 
		</p>
	</div>

	<div>
		<p>
			But of course, that’s not paradoxical at all, just not what we’re used to. A paradox is “<i>X</i> and also not-<i>X</i>,” not “I don’t know where <i>X</i> came from.” The film sticks closely to the major points of Heinlein’s puzzle-box plot, which ensures that everything makes sense at the end of the day. It’s an even more impressive act of following characters interacting with their past and future selves before tying things up in a tidy package than we found in <i>12 Monkeys</i> or <i>Timecrimes.</i> So it's all the more regrettable that it’s just not that great a movie.
		</p>

		<p>
			 
		</p>
	</div>

	<p>
		Entertainment Score: 3
	</p>

	<p>
		 
	</p>

	<p>
		Science Score: 9
	</p>
</div>

<div class="article-content post-page" itemprop="articleBody">
	<h2>
		<em>Interstellar</em> (2014)
	</h2>

	<p>
		<img alt="timetravel29-640x390.jpg" class="ipsImage" data-ratio="60.94" height="390" width="640" src="https://cdn.arstechnica.net/wp-content/uploads/2023/09/timetravel29-640x390.jpg">
	</p>

	<div>
		<em>The closest we’ve seen to a movie that tries to do time travel in perfect accordance with the laws of physics.</em>
	</div>

	<div>
		<em>Paramount Pictures</em>
	</div>

	<p>
		 
	</p>

	<p>
		In <a href="https://en.wikipedia.org/wiki/Interstellar_(film)" rel="external nofollow"><em>Interstellar</em></a>, Earth in the distant future is beset by a devastating global famine that threatens to wipe out the entire human race. NASA scientists need to locate an exoplanet capable of supporting human life, and a former NASA pilot, Joseph Cooper (Matthew McConaughey), is tapped to lead a space expedition to three potential planets orbiting a supermassive black hole called Gargantua. The plot gets increasingly complicated from there, culminating with Cooper falling through a black hole and finding himself in a five-dimensional tesseract that enables him to communicate with the past—and ultimately save the day.
	</p>

	<p>
		 
	</p>

	<p>
		The premise of <em>Interstellar</em> came from Caltech physicist Kip Thorne and producer Lynda Obst, inspired by Thorne's research on black holes, wormholes, time warps, and other exotic concepts in theoretical physics. Initially, Steven Spielberg was meant to direct, but then Spielberg moved his production company to Walt Disney Studios, and Christopher Nolan took over directing duties. The CGI depiction of the film's rotating black hole, accretion disk, and gravitational lensing effect was based on advanced theoretical equations, and working on the project actually gave Thorne new scientific insights, resulting in three scientific papers—a prime example of science inspiring Hollywood and Hollywood inspiring science in turn.
	</p>

	<p>
		 
	</p>

	<div>
		<p>
			<i>Interstellar</i> is, perhaps unsurprisingly, the closest we’ve seen to a movie that tries to do time travel in perfect accordance with the laws of physics. Or at least, with the laws of physics as they might plausibly turn out to be; physicists don’t know whether wormholes are actually allowed in the real world. But we're at least shown spaceships traveling through warped spacetime, which is how time travel should be. Yet while a wormhole features prominently in <i>Interstellar</i>, it’s not actually used for purposes of travel into the past, only as a cosmic shortcut through space. For most of the film, the only time travel we see is into the future, just as Einstein’s relativity would predict, via time dilation and hanging out in the gravitational field near a black hole.
		</p>

		<p>
			 
		</p>
	</div>

	<div>
		<p>
			It would be great to give it a 10 on the science scale. But the movie can’t quite be content with sticking close to known physics. Thus, we have Cooper visiting an inter-dimensional library and sending signals to his daughter in the past. This makes no sense (although, to be fair, it does preserve a single consistent timeline). It is vaguely inspired by some modern ideas of extra dimensions in string theory, but suffice it to say that those ideas would not allow you to poke books down from library shelves in the past.
		</p>

		<p>
			 
		</p>
	</div>

	<p>
		Entertainment Score: 7
	</p>

	<p>
		 
	</p>

	<p>
		Science Score: 9
	</p>

	<h2>
		<em>Arrival</em> (2016)
	</h2>

	<p>
		<img alt="arrival-640x426.jpg" class="ipsImage" data-ratio="66.56" height="426" width="640" src="https://cdn.arstechnica.net/wp-content/uploads/2023/11/arrival-640x426.jpg">
	</p>

	<div>
		<em>Denis Villeneuve's first foray into sci-fi offers a fun twist on the ancient idea of prophesy or predestination.</em>
	</div>

	<div>
		<em>Paramount Pictures</em>
	</div>

	<p>
		 
	</p>

	<p>
		<a href="https://en.wikipedia.org/wiki/Arrival_(film)" rel="external nofollow"><em>Arrival</em></a> is based on <a href="https://en.wikipedia.org/wiki/Story_of_Your_Life" rel="external nofollow">a short story</a> by Ted Chiang, who said he was partly inspired by the <a href="https://en.wikipedia.org/wiki/Variational_principle" title="Variational principle" rel="external nofollow">variational principle</a> in physics. Director Denis Villeneuve's critically acclaimed fledgling foray into science fiction is a moody, leisurely paced, atmospheric film with big ideas and existential themes. Amy Adams turns in an amazing performance as linguist Louise Banks, who is called upon by the US government to make contact and communicate with aliens called "heptapods" (since they resemble cephalopods and have seven limbs).
	</p>

	<p>
		 
	</p>

	<p>
		Much of the film concerns Louise's attempts—working with physicist Ian Donnelly (Jeremy Renner)—to learn the aliens' palindromic language rendered in strange circular symbols. She gradually realizes that doing so alters her linear perception of time because the aliens experience events in time all at once rather than in succession. Louise begins experiencing "memories" of future events (i.e., premonitions) that include the future birth and eventual death of her daughter (with Donnelly) from an incurable disease. Louise nonetheless "chooses" to follow that same path, knowing it will end in tragedy, raising the age-old argument of whether free will is just an illusion. It's to Villeneuve's (and Adams') credit that the film works as well as it does.
	</p>

	<p>
		 
	</p>

	<div>
		<p>
			Several of Kurt Vonnegut’s novels featured aliens from the planet <a href="https://en.wikipedia.org/wiki/Tralfamadore" rel="external nofollow">Tralfamadore</a>. They were not always portrayed consistently, but in <i>Slaughterhouse-Five</i>, they were said to exist at all times simultaneously, seeing the sweep of history as you or I would see pages in a book, all at once. The aliens in <i>Arrival</i> seem similarly equipped with the ability to perceive both the past and the future and to teach that ability to Louise.
		</p>

		<p>
			 
		</p>
	</div>

	<div>
		<p>
			This is a fun twist on the ancient idea of prophecy or predestination and, as such, makes for some compelling narrative uses—for a while, anyway. In the movie, Louise sees glimpses of what we initially assume to be the past but is eventually revealed to be the future. If she becomes good at this, she would become <a href="https://en.wikipedia.org/wiki/Laplace%27s_demon" rel="external nofollow">Laplace’s Demon</a>, a hypothetical all-knowing intellect. The problem is that Laplace’s Demon lives an extremely boring life. There are no surprises, no anticipation, no tension, no risks.
		</p>

		<p>
			 
		</p>
	</div>

	<div>
		<p>
			Happily, none of us is Laplace’s Demon, nor will we ever be. There is no way to obtain all the necessary information about the current state of the physical universe, and if there were, there would be nowhere near enough calculational power to project it forward in time. Not to mention that the Demon was meant to illustrate a feature of classical Newtonian mechanics, and now we know that quantum theory injects a stochastic element that makes it impossible to predict the future well at all. Needless to say, Louise does use her precognitive powers to affect the present and thereby change history, but there seems to be only a single consistent timeline. Points awarded for exploring a novel twist on time travel, even if it likely wouldn’t stand up to close scrutiny.
		</p>

		<p>
			 
		</p>
	</div>

	<p>
		Entertainment Score: 8
	</p>

	<p>
		 
	</p>

	<p>
		Science Score: 6
	</p>
</div>

<div class="article-content post-page" itemprop="articleBody">
	<h2>
		<em>Avengers: Endgame</em> (2019)
	</h2>

	<p>
		<img alt="timetravel31-640x426.jpg" class="ipsImage" data-ratio="66.56" height="426" width="640" src="https://cdn.arstechnica.net/wp-content/uploads/2023/09/timetravel31-640x426.jpg">
	</p>

	<div>
		<em>It's Captain America vs. Captain America thanks to time-travel shenanigans.</em>
	</div>

	<div>
		<em>Marvel Studios</em>
	</div>

	<p>
		 
	</p>

	<p>
		Directed by Anthony and Joe Russo, <a href="https://en.wikipedia.org/wiki/Avengers:_Endgame" rel="external nofollow"><em>Avengers: Endgame</em></a> is a <a href="https://arstechnica.com/gaming/2019/04/avengers-endgame-is-three-of-marvels-best-films-rolled-into-one/" rel="external nofollow">direct sequel</a> to 2018's blockbuster <em><a href="https://arstechnica.com/gaming/2018/04/avengers-infinity-war-review-whats-missing-from-this-2-5-hour-romp-hope/" rel="external nofollow">Avengers: Infinity War</a>,</em> bringing the narrative arc over 22 films full circle to an action-packed, emotionally powerful conclusion. After Thanos (Josh Brolin) erased half of all life in the universe with a snap of his fingers using the Infinity Glove, the remaining Avengers are despondent and directionless. Thanos destroyed the Infinity Stones after achieving his goal, dashing their hopes of reversing The Snappening. Then Scott Lang/Ant-Man (Paul Rudd) returns from the quantum realm, having only experienced five hours' time instead of five years. The team ends up traveling back in time via the quantum realm to retrieve the stones and bring the other half of the universe back. <em>Endgame</em> had one key element that <a href="https://en.wikipedia.org/wiki/Avengers:_Infinity_War" rel="external nofollow"><em>Infinity War</em></a> lacked: hope. Perhaps that's why it grossed a whopping $2.799 billion worldwide, compared to <em>Infinity War</em>'s $2.052 billion.
	</p>

	<p>
		 
	</p>

	<div>
		<p>
			As mentioned above, one of us (Sean) has a conflict of interest, having briefly served as a science consultant on this movie. In addition to sparking a couple of witty lines, that conversation did (one likes to think) help convince the directors that a single consistent timeline was ultimately the most satisfying way to go. Sean will also confess that he pitched an extremely elaborate and nuanced scenario by which multiple timelines could be magically sewn back together so that characters would subsequently have simultaneous memories of two very different histories. Marvel wisely didn’t take that suggestion. It’s always good to consult with physicists when you’re doing a wildly speculative science-fiction scenario, but you have to know when to ignore them.
		</p>

		<p>
			 
		</p>
	</div>

	<div>
		<p>
			<i>Endgame</i> ultimately stitches together a basically coherent timeline. There are bits like Ant-Man zipping into the quantum realm and coming back as a baby or an old man that make no sense, but they are largely played for laughs. The very invocation of the “quantum realm” isn’t grounded in any real science, but it does elevate the time-traveling slightly above the bare magic-box level. Invocations of the “<a href="https://en.wikipedia.org/wiki/Quantum_mechanics_of_time_travel" rel="external nofollow">Deutsch proposition</a>” and the <a href="https://en.wikipedia.org/wiki/Einstein%E2%80%93Podolsky%E2%80%93Rosen_paradox" rel="external nofollow">EPR paradox</a> are nothing more than technobabble. And there are some stumbles of logic, as when Captain America (Chris Evans) <a href="https://www.youtube.com/watch?v=G-oL1_ZkN4U" rel="external nofollow">fights himself</a>. Wouldn’t the older Cap have remembered that event in younger Cap’s life?
		</p>

		<p>
			 
		</p>
	</div>

	<div>
		<p>
			However, the movie is a bit cagey about the nature of that timeline. The Ancient One (Tilda Swinton) explains that travel to the past has the capacity to lead to multiple branching timelines but also suggests that this would be bad. This would be developed in the TV series <i>Loki</i> into the concept of a “sacred timeline.” It's not a good concept. How do we know our intervention won’t make better timelines than the ones we know? It’s not exactly without its flaws.
		</p>

		<p>
			 
		</p>
	</div>

	<p>
		Entertainment Score: 9
	</p>

	<p>
		 
	</p>

	<p>
		Science Score: 5
	</p>

	<h2>
		<em>Tenet</em> (2020)
	</h2>

	<p>
		<img alt="timetravel22-640x422.jpg" class="ipsImage" data-ratio="65.94" height="422" width="640" src="https://cdn.arstechnica.net/wp-content/uploads/2023/09/timetravel22-640x422.jpg">
	</p>

	<div>
		<em>The visual sequences of time running in reverse are a tour-de-force of filmmaking.</em>
	</div>

	<div>
		<em>Warner Bros.</em>
	</div>

	<p>
		 
	</p>

	<p>
		Christopher Nolan has the distinction of being the only director to appear twice on our list with <a href="https://en.wikipedia.org/wiki/Tenet_(film)" rel="external nofollow"><em>Tenet</em></a>, arguably his most ambitious and conceptually complex film to date. A character known only as the Protagonist (John David Washington) leads a covert CIA mission that goes awry. He ends up being recruited by a top-secret organization called "Tenet" that is trying to track mysterious artifacts with reversed entropy that move backward in time. Ultimately, the Protagonist and Tenet must foil a plot by future antagonists who are trying to reverse the flow of time to undo the devastating effects of climate change in that future.
	</p>

	<p>
		 
	</p>

	<p>
		It took Nolan five years to write the screenplay, and he was contemplating the central ideas for 10 years. But there's such a thing as overthinking things. Frankly, the plot is actually <em>too</em> complicated. Kudos to anyone who caught everything in a single viewing—especially the climactic "temporal pincer movement" and the multiple forms of palindromes embedded throughout—because we didn't. That makes it harder to connect emotionally with the characters, and the film is further marred by inexplicably poor sound mixing. But it's certainly an exciting film with fascinating ideas, and there's no denying that the visual sequences of time running in reverse are a <em>tour de force</em> of filmmaking. Small wonder that <em>Tenet</em> snagged an Oscar for Best Visual Effects; the honor was well-deserved.
	</p>

	<p>
		 
	</p>

	<div>
		<p>
			Let us be perfectly clear: Physics doesn’t work this way. But the film uses physics concepts in an immensely clever way, breaking truly new ground in a genre where most terrain has been thoroughly explored. The “arrow of time” is a catch-all term for the various ways in which the past is different from the future. We have memories of the past but not the future; our actions today can affect the future but not the past. Modern science accounts for this via the notion of entropy, a measure of the disorderliness of a system. Our universe started (why, nobody knows) in a state of very low entropy, and it has been increasing ever since, a fact codified into the Second Law of Thermodynamics. Increasing entropy is responsible for why we remember the past and affect the future.
		</p>

		<p>
			 
		</p>
	</div>

	<div>
		<p>
			<i>Tenet</i> posits the ability to reverse the arrow of time for particular objects or people. You can enter a “turnstile” as a normal person and exit as a time-reversed person. So you should—and do —see yourself leaving one door at the same time as you are entering another. (Indeed, you are warned not to enter unless you see a time-reversed version of yourself leaving—something must have gone dramatically wrong.) This is cute and also not possible.
		</p>

		<p>
			 
		</p>

		<p>
			The reason that entropy increases for ordinary objects is not some inherent entropy-increasing tendency, which could somehow be reversed. Rather, it’s because of special conditions at very early times, near the Big Bang. You can absolutely imagine taking a system and delicately arranging the positions and velocities of all of its atoms so that its entropy goes down rather than up; it would look something like a trick shot in billiards that started with a scatter of balls and had them all converge into an orderly configuration as if they had just been racked. But if the billiard balls are disturbed along the way, the delicate arrangement would be ruined, and the trick would fail. Likewise, with <i>Tenet</i>’s backward-moving people and weapons, once they bumped into anything at all, they’d go back to evolving in the usual way.
		</p>

		<p>
			 
		</p>
	</div>

	<div>
		<p>
			Still, this is an example where, science-wise, we're inclined to cut some slack. Nolan is exploring something new and wild. Let him play around a little.
		</p>

		<p>
			 
		</p>
	</div>

	<p>
		Entertainment Score: 8.5
	</p>

	<p>
		 
	</p>

	<p>
		Science Score: 7
	</p>

	<p>
		 
	</p>
</div>

<p>
	<a href="https://arstechnica.com/features/2023/11/the-ars-guide-to-time-travel-in-the-movies/" rel="external nofollow">Source</a>
</p>
]]></description><guid isPermaLink="false">20267</guid><pubDate>Fri, 24 Nov 2023 18:43:18 +0000</pubDate></item><item><title>Meet &#x201C;Amaterasu&#x201D;: Astronomers detect highest energy cosmic ray since 1991</title><link>https://nsaneforums.com/news/general-news/meet-%E2%80%9Camaterasu%E2%80%9D-astronomers-detect-highest-energy-cosmic-ray-since-1991-r20261/</link><description><![CDATA[<h3>
	The Telescope Array in Utah's West Desert picked up a rare particle with 244 EeV energy.
</h3>

<p>
	Artist’s illustration of extensive air showers induced by ultra-high-energy cosmic rays. Credit: Toshihiro Fujii/L-INSIGHT/Kyoto University
</p>

<p>
	 
</p>

<div class="videostyle">
	<video controls="" preload="metadata" data-controller="core.global.core.embeddedvideo">
		<source type="video/mp4" src="https://cdn.arstechnica.net/wp-content/uploads/2023/11/cosmic-ray-animation.mp4?_=1">
	</source></video>
</div>

<div itemprop="articleBody">
	<figure>
		<figcaption>
			<div style="text-align: center;">
				<em>Artist’s illustration of extensive air showers induced by ultra-high-energy cosmic rays. </em>
			</div>

			<div style="text-align: center;">
				<em>Credit: Toshihiro Fujii/L-INSIGHT/Kyoto University</em>
			</div>
		</figcaption>
	</figure>

	<p>
		Astronomers involved with the <a href="http://www.telescopearray.org" rel="external nofollow">Telescope Array</a> experiment in Utah's West Desert have detected an ultra-high-energy cosmic ray (UHECR) with a whpping energy level of 244 EeV, according to a <a href="http://www.science.org/doi/10.1126/science.abo5095" rel="external nofollow">new paper</a> published in the journal Science. It's the most energetic cosmic ray detected since 1991, when astronomers detected the so-called <a href="https://en.wikipedia.org/wiki/Oh-My-God_particle" rel="external nofollow">"Oh-My-God' particle</a>, with energies of an even more impressive 320 EeV. Astronomers have dubbed this latest event the "Amaterasu" particle, after the <a href="https://en.wikipedia.org/wiki/Amaterasu" rel="external nofollow">Shinto sun goddess</a> said to have created Japan. One might even call it the "Oh-My-Goddess" particle.
	</p>

	<p>
		 
	</p>

	<p>
		Cosmic rays are highly energetic subatomic particles traveling through space near the speed of light. Technically, a <a href="https://www.aps.org/publications/apsnews/201004/physicshistory.cfm" rel="external nofollow">cosmic ray</a> is just an atomic nucleus made up of a proton or a cluster of protons and neutrons. Most originate from the Sun, but others come from objects outside our solar system. When these rays strike the Earth’s atmosphere, they break apart into showers of other particles (both positively and negatively charged).
	</p>

	<p>
		 
	</p>

	<p>
		They were <a href="https://home.cern/news/news/physics/cosmic-rays-discovered-100-years-ago" rel="external nofollow">first discovered</a> in 1912 by Austrian physicist <a href="https://en.wikipedia.org/wiki/Victor_Francis_Hess" rel="external nofollow">Victor Hess</a> via a series of ascents in a hydrogen balloon to take measurements of radiation in the atmosphere with an electroscope. He found that the rate of ionization was a good three times the rate at sea level, thereby disproving a competing theory that this radiation came from the rocks of  Earth. If you've ever <a href="https://blogs.scientificamerican.com/cocktail-party-physics/cosmic-rays-make-beautiful-music-in-kirkes-cloud-chamber/" rel="external nofollow">seen a cloud chamber</a> in a science museum, cosmic ray tracks look like wispy little white lines, similar to tiny jet contrails.
	</p>

	<p>
		 
	</p>

	<p>
		Cosmic rays come in a broad range of energies, with the least energetic being the most common. Those were the cosmic rays Hess detected, and are the ones most likely to show up in a museum cloud chamber. There is a theoretical limit, proposed in 1965, to just how energetic a cosmic ray should be: no more than 50 EeV coming from more than 300 million light years from Earth. That's because of the cosmic microwave background radiation, the afterglow of the Big Bang that pervades the universe, discovered in 1964. Any cosmic rays traveling further than that would be destroyed via interactions with the CMB before they reached Earth's detectors. It's known as the GZK cutoff after the scientists who proposed it (Kenneth Greisin, Georgiy Zatsepin, and Vadim Kuzmin).
	</p>

	<p>
		 
	</p>

	<p>
		<img alt="cosmicray2-640x427.jpg" class="ipsImage" data-ratio="66.72" height="427" width="640" src="https://cdn.arstechnica.net/wp-content/uploads/2023/11/cosmicray2-640x427.jpg">
	</p>

	<div>
		<em>Illustration of ultra-high-energy cosmic ray astronomy to clarify extremely energetic phenomena.</em>
	</div>

	<div>
		<em>Osaka Metropolitan Univ./L-INSIGHT/Kyoto Univ./Ryuunosuke Takeshige/CC BY-NC-SA</em>
	</div>

	<p>
		 
	</p>

	<p>
		The 1991 discovery of the "Oh-My-God" particle challenged that prevailing theory, hitting the Earth's atmosphere at very near the speed of light and apparently traveling from the direction of the Perseus constellation in the northern hemisphere. It carried the energy equivalent of a bowling ball dropped from shoulder height, packed tightly into a subatomic particle. Astronomers haven't seen its equal since, although they have detected dozens of events that qualify as UHECRs over the ensuing decades.
	</p>

	<p>
		 
	</p>

	<p>
		But what could be the source of such UHECRs, capable of accelerating the subatomic particles to such impressive speeds? Even a supernova wouldn't be able to do this. One possible source is an expanding shock wave from a cosmic-scale explosion—say, a black hole ripping apart a star and producing a massive jet of plasma—in which particles traverse magnetic fields over and over and pick up energy as they travel through space. Another candidate is active galactic nuclei (AGNs) typically found at the center of galaxies and assumed to contain a supermassive black hole. AGNs produce powerful jets of superheated plasma accompanied by shock waves.
	</p>

	<p>
		 
	</p>

	<p>
		Other suggestions include gamma ray bursts (themselves arising from an unknown source) or intense regions of star formation known as starburst galaxies. It doesn't help that the trajectories of UHECRs are bent by magnetic fields en route to our detectors on Earth, making it difficult to reconstruct the route they traveled and thereby pinpoint an origin point in the sky. Astronomers thought they had identified a couple of intriguing hot spots back in 2017, one in Centaurus A and the other in a galaxy called M82 in the Ursa Major constellation. But confidence in the former hotspot has weakened since 2019 as the number of UHCERs detected from there appears to be dropping.
	</p>

	<p>
		 
	</p>

	<p>
		The recorded signal and event animation of the extremely energetic particle, dubbed the "Amaterasu" particle. Credit: Osaka Metropolitan University/CC BY-SA
	</p>

	<p>
		 
	</p>

	<div class="videostyle">
		<video controls="" preload="metadata" data-controller="core.global.core.embeddedvideo">
			<source type="video/mp4" src="https://cdn.arstechnica.net/wp-content/uploads/2023/11/CosmicRay_animation.mp4?_=2">
		</source></video>
	</div>

	<figure>
		<figcaption>
			<div style="text-align: center;">
				<em>The recorded signal and event animation of the extremely energetic particle, dubbed the "Amaterasu" particle. Credit: Osaka Metropolitan University/CC BY-SA</em>
			</div>
		</figcaption>
	</figure>

	<p>
		The Telescope Array consists of over 500 surface detectors arranged in a square grid that covers some 270 square miles (700 square kilometers) just outside of Delta, Utah. It has picked up more than 30 UHECRs since it began operation. Even so, co-author Toshihiro Fujii of Osaka Metropolitan University in Japan "<a href="https://www.eurekalert.org/news-releases/1008434?" rel="external nofollow">thought there must have been a mistake</a>" when the experiment picked up the "Amaterasu"  particle on May 27, 2021. Extraordinary claims require extraordinary evidence, as the mantra goes, so the detection and trajectory analysis weren't announced until a conference last fall, with the paper only now just coming in Science.
	</p>

	<p>
		 
	</p>

	<p>
		Like its 1991 predecessor, astronomers are baffled as to where the particle came from. Tracing its trajectory led them to an empty area of space known as the "Local Void" bordering our Milky Way galaxy.  “The particles are so high energy, they shouldn’t be affected by galactic and extra-galactic magnetic fields. You should be able to point to where they come from in the sky,” <a href="https://www.eurekalert.org/news-releases/1008840?" rel="external nofollow">said co-author John Matthews</a>, Telescope Array co-spokesperson at the University of Utah. “But in the case of the Oh-My-God particle and this new particle, you trace its trajectory to its source and there’s nothing high energy enough to have produced it. That’s the mystery of this—what the heck is going on?”
	</p>

	<p>
		 
	</p>

	<p>
		We might learn more once astronomers finish expanding the Telescope Array, adding 500 new scintillator detectors which would expand the detection area to 1,100 square miles (2,900 square kilometers). That should increase how often they detect such UHECRs.
	</p>

	<p>
		 
	</p>

	<p>
		“These events seem like they're coming from completely different places in the sky. It’s not like there's one mysterious source,”<a href="https://www.eurekalert.org/news-releases/1008840?" rel="external nofollow"> said co-author John Belz</a>, also with the University of Utah. “It could be defects in the structure of spacetime, colliding cosmic strings. I mean, I’m just spit-balling crazy ideas that people are coming up with because there's not a conventional explanation. Maybe magnetic fields are stronger than we thought, but that disagrees with other observations that show they’re not strong enough to produce significant curvature at these ten-to-the-twentieth electron volt energies. It’s a real mystery.”
	</p>

	<p>
		 
	</p>

	<p>
		DOI: Science, 2023. <a href="http://dx.doi.org/10.1126/science.abo5095" rel="external nofollow">10.1126/science.abo5095</a>  (<a href="http://arstechnica.com/science/news/2010/03/dois-and-their-discontents-1.ars" rel="external nofollow">About DOIs</a>).
	</p>

	<p>
		 
	</p>

	<p>
		Listing image by Osaka Metropolitan University/L-INSIGHT, Kyoto University/Ryuunosuke Takeshige
	</p>

	<p>
		 
	</p>
</div>

<p>
	<a href="https://arstechnica.com/science/2023/11/meet-amaterasu-astronomers-detect-highest-energy-cosmic-ray-since-1991/" rel="external nofollow">Source</a>
</p>
]]></description><guid isPermaLink="false">20261</guid><pubDate>Fri, 24 Nov 2023 07:15:59 +0000</pubDate></item><item><title>Rocket Report: Beyond Gravity to study fairing reuse; North Korea launches satellite</title><link>https://nsaneforums.com/news/general-news/rocket-report-beyond-gravity-to-study-fairing-reuse-north-korea-launches-satellite-r20250/</link><description><![CDATA[<h3>
	"I conclude the objects are the spy satellite and the rocket upper stage."
</h3>

<div class="article-content post-page" itemprop="articleBody">
	
	<p>
		Welcome to Edition 6.20 of the Rocket Report! We apologize for missing last week, but both Stephen and I were in transit to South Texas for the Starship launch. To make up for it this week's report is extra long, and a day early due to the Thanksgiving holiday in the United States. But that doesn't mean the spaceflight action stops, with an eagerly awaited hot fire test of the Ariane 6 rocket expected Thursday. See below for details on how to watch live.
	</p>

	<p>
		 
	</p>

	<p>
		As always, we <a href="https://arstechnica.wufoo.com/forms/launch-stories/" rel="external nofollow">welcome reader submissions</a>, and if you don't want to miss an issue, please subscribe using the box below (the form will not appear on AMP-enabled versions of the site). Each report will include information on small-, medium-, and heavy-lift rockets as well as a quick look ahead at the next three launches on the calendar.
	</p>

	<p>
		 
	</p>

	<p>
		<img alt="smalll.png" class="ipsImage" data-ratio="14.46" height="81" width="560" src="https://cdn.arstechnica.net/wp-content/uploads/2018/05/smalll.png">
	</p>

	<p>
		 
	</p>

	<p>
		<strong>North Korea launches spy satellite</strong>. North Korea's launch of a small, solid-fueled Chŏllima-1 rocket, which has a capacity of about 300 kg to low-Earth orbit, appears to have been successful, <a href="https://www.reuters.com/world/asia-pacific/what-we-know-about-north-koreas-new-satellite-claims-russian-aid-2023-11-22/" rel="external nofollow">Reuters reports</a>. Jonathan McDowell, an astronomer and astrophysicist at the Harvard–Smithsonian Center for Astrophysics, said the US Space Force data had cataloged two new objects in an orbital plane consistent with the launch from North Korea at the time stated by Pyongyang.
	</p>

	<p>
		 
	</p>

	<p>
		<em>Did Russia help?</em> ... "I conclude the objects are the spy satellite and the rocket upper stage," McDowell told the news service. What remains unconfirmed, however, is whether its payload, the reconnaissance satellite Malligyong-1, is operating and whether the North received any outside help. South Korea's spy agency has said North Korea may have overcome technical hurdles with the help of Russia, which in September publicly pledged to help Pyongyang build satellites. (submitted by EllPeaTea, Ken the Bin, and tsunam)
	</p>

	<p>
		 
	</p>

	<p>
		<strong>Firefly raises significant funding</strong>. It's certainly not the best of times for a space company to raise money, but Firefly seems to be having success regardless. The <a href="https://fireflyspace.com/news/firefly-aerospace-closes-third-tranche-of-series-c-round-reaching-approximately-300-million-of-financing-to-date/" rel="external nofollow">company recently announced</a> that it has raised about $300 million since February 2023, valuing the company at $1.5 billion. "We have been successful at raising funds at an increased valuation in this challenging capital markets environment due to our focus on production and mission execution," said Bill Weber, CEO of Firefly Aerospace.
	</p>

	<p>
		 
	</p>

	<p>
		<em>Lots of lines of business</em> ... Along with Firefly’s recent responsive launch success with the VICTUS NOX mission, the company said it has been awarded contracts for multiple Alpha rocket missions, including a NASA flight, and launch agreements with Lockheed Martin and L3Harris. The company also won multiple US government and commercial contracts, including three NASA Commercial Lunar Payload Services task orders, with its Blue Ghost lander. Firefly is also developing a medium-lift rocket with Northrop Grumman. (submitted by Ken the Bin)
	</p>

	<p>
		 
	</p>

	<div class="ars-component-layout ars-newsletter-callbox full" data-list-id="248910">
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					The Rocket Report: An Ars newsletter
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					The easiest way to keep up with Eric Berger's space reporting is to sign up for his newsletter, we'll collect his stories in your inbox.
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	</div>

	<p>
		<strong>Rocket Lab targets November return to flight</strong>. Rocket Lab expects to resume Electron launches in late November after concluding that a “largely improbable” combination of events caused the vehicle’s previous launch to fail, <a href="https://spacenews.com/rocket-lab-plans-to-resume-electron-launches-in-late-november/" rel="external nofollow">Space News reports</a>. The company is targeting a return to flight of Electron no earlier than November 28 from the company’s Launch Complex 1 in New Zealand. The rocket will carry a radar imaging satellite for the Japanese company iQPS on a dedicated mission.
	</p>

	<p>
		 
	</p>

	<p>
		<em>An unexpected electrical arc</em> ... Electron has been grounded since a September 19 launch failure, when the second-stage engine appeared to shut down moments after ignition. The company has already received authorization from the Federal Aviation Administration to resume launches. In an earnings call to discuss the company’s third-quarter financial results, Rocket Lab Chief Executive Peter Beck said the failure happened quickly, with only 1.6 seconds of data from the first indication of a problem with the vehicle to the loss of telemetry. “This was always going to be a highly complex issue to figure out,” he said. (submitted by Ken the Bin)
	</p>

	<p>
		 
	</p>

	<p>
		<strong>Ursa Major to target solid rocket motor market</strong>. CEO Joe Laurienti said the company sees an opportunity to use 3D printing to disrupt an industry constrained by outdated processes, <a href="https://spacenews.com/rocket-engine-startup-ursa-major-to-venture-into-solid-propulsion/" rel="external nofollow">Space News reports</a>. The production of solid rocket motors in the United States is “plagued by a broken supply chain and an overextended industrial base,” Laurienti said. “Most folks weren’t really paying attention to the industrial base around this until Russia’s invasion of Ukraine.”
	</p>

	<p>
		 
	</p>

	<p>
		<em>Surging demand for missiles in Ukraine</em> ... While large solid rocket motors are employed by big launch vehicles such as NASA's Space Launch System and United Launch Alliance's Vulcan, they are most widely used in military weapon systems like missiles and rockets. Northrop Grumman and L3Harris’ Aerojet Rocketdyne are the nation’s primary suppliers of solid rocket motors. The conflict in Ukraine has exposed cracks in the US industrial base, which has struggled to meet surging demand for critical munitions like the Javelin and Stinger missile systems that depend on solid rocket motors. (submitted by Ken the Bin)
	</p>

	<p>
		 
	</p>

	<p>
		<strong>SaxaVord owes contractors money</strong>. A spaceport being built on the Shetland Islands north of the Scottish mainland is having financial difficulties, <a href="https://europeanspaceflight.com/saxavord-owes-contractors-money-it-cant-pay/" rel="external nofollow">European Spaceflight reports</a>. Shetland Space Centre Limited owes approximately 1 million pounds to Shetland-based DITT Construction for the development of the spaceport. The company currently does not have the funds to pay the amount after a £139 million debt facility promised by CEO Frank Strang in May failed to materialize. The construction of SaxaVord Spaceport began in late March 2022. At its peak, more than 60 people were working on site to build out key infrastructure that would enable the facility to support launches of small rockets from Scottish shores.
	</p>

	<p>
		 
	</p>

	<p>
		<em>One launch company still going, another pulls out</em> ... In January 2023, Germany’s Rocket Factory Augsburg announced that it had secured exclusive rights to the only launch pad that had been completed. With testing of the RFA ONE core stage expected to begin at the site in early 2024, this appears to be one of the elements of SaxaVord that has been completed on schedule. In possibly related news, another German launch startup, HyImpulse Technologies, <a href="https://europeanspaceflight.com/hyimpulse-ditch-saxavord-in-favour-of-australia-for-maiden-flight/" rel="external nofollow">said it would make the debut flight</a> of its suborbital SR75 launch vehicle from the Southern Launch Koonibba Test Range in Australia instead of the previously announced SaxaVord. (submitted by Ken the Bin and EllPeaTea)
	</p>

	<p>
		 
	</p>

	<p>
		<strong>Spanish startup makes progress on methalox engine</strong>. Barcelona-based Pangea Aerospace <a href="https://twitter.com/PangeaAerospace/status/1721849135538536795" rel="external nofollow">recently announced</a> a successful test of the combustion chamber for its ARCOS aerospike engine. "We were also able to validate the advanced manufacturing techniques and materials used, which represent breakthrough technologies for the aerospace industry," the company stated. Pangea says this is the first aerospike engine developed using liquid methane as a propellant.
	</p>

	<p>
		 
	</p>

	<p>
		<em>A step toward full reuse</em> ... The ARCOS engine is designed to have a thrust of 300 kN, or about one-third that of a Merlin 1D rocket engine. It is intended to fly on both the first stage and upper stage of a reusable launch vehicle. The company's technology is not at the maturity level of Stoke Space, but it does appear to be the first Europe-based startup attempting to build a fully reusable rocket. (submitted by Leika)
	</p>

	<p>
		 
	</p>
</div>

<div class="article-content post-page" itemprop="articleBody">
	<p>
		<img alt="mediuml.png" class="ipsImage" data-ratio="14.46" height="81" width="560" src="https://cdn.arstechnica.net/wp-content/uploads/2018/05/mediuml.png">
	</p>

	<p>
		 
	</p>

	<p>
		<strong>Ariane 6 hot fire test to be broadcast Thursday</strong>. After some public kvetching by myself and many others, <a href="https://www.esa.int/Enabling_Support/Space_Transportation/Ariane/Watch_live_Ariane_6_eight-minute_hot-fire_test" rel="external nofollow">the European Space Agency says</a> it will now broadcast the full-duration hot-fire test of its Ariane 6 rocket. This test will occur on Thursday (Happy Thanksgiving to US-based space reporters) from the European launch site in Kourou, French Guiana. Coverage will start 20 minutes before engine ignition at 17:10 local time in Kourou (3:10 pm ET, 20:10 UTC) and continue for five minutes after core stage operation.
	</p>

	<p>
		 
	</p>

	<p>
		<em>Turning up the heat in Kourou</em> ... The test includes the ignition of the core stage Vulcain 2.1 engine, followed by 470 seconds of operation covering the entire core stage flight phase, as it would function on a launch into space. The boosters will not be ignited. This is a test model of the rocket, as the first flight version of the Ariane 6 is still being completed in Europe. This is the final major test, and success here could pave the way for a debut launch sometime in 2024 (<a href="https://europeanspaceflight.com/ride-wins-esa-push-contract-to-offer-ariane-6-launch-capacity/" rel="external nofollow">possibly no earlier than the third quarter</a>). Shoutout to whoever made the decision and is making this broadcast happen. (submitted by Ken the Bin)
	</p>

	<p>
		 
	</p>

	<p>
		<strong>Beyond Gravity joins the reusable rocket party</strong>. On Wednesday, the fairing manufacturer formerly known as <a href="https://www.beyondgravity.com/en/news/beyond-gravity-innovating-space-launches-reusable-payload-fairing-concept" rel="external nofollow">Ruag announced</a> it was kicking off a "major research and innovation project" to develop a reusable payload fairing. The concept entails the payload fairing being connected to the first stage, with two halves of the fairing swinging open to release an expendable second stage and a payload. The first stage and payload fairing would then return to Earth. The plan looks similar to Rocket Lab's design for its reusable Neutron rocket.
	</p>

	<p>
		 
	</p>

	<p>
		<em>The launch paradigm continues to shift</em> ... “This new approach is set to address the evolving market's needs while staying true to Beyond Gravity's commitment to sustainability, innovation, and dedication to a 100 percent mission success," said Paul Horstink, executive VP at Beyond Gravity’s launcher division. "In addition, the cost savings associated with reusable rockets could make the launch systems more accessible to a wider range of companies and organizations, supporting more frequent launches." The company says it will initially target medium-launch vehicles. (submitted by Ken the Bin)
	</p>

	<p>
		 
	</p>

	<p>
		<strong>Japan sets target for next H3 attempt</strong>. Japan's space agency, JAXA, says it aims to make a second attempt to launch the country's new flagship H3 rocket by the end of next March, <a href="https://www3.nhk.or.jp/nhkworld/en/news/20231117_29/" rel="external nofollow">NHK News reports</a>. The first launch last March ended in failure after the rocket's second-stage engine did not ignite.
	</p>

	<p>
		 
	</p>

	<p>
		<em>Fixing those problems</em> ... After analyzing flight data and conducting studies, JAXA identified three main factors contributing to the failure. JAXA President Yamakawa Hiroshi said measures to be taken for the next launch will address those failures from the initial attempt. He also said the results of the main engine's combustion testing have helped JAXA to better prepare to launch its second H3 rocket. (submitted by tsunam)
	</p>

	<p>
		 
	</p>

	<p>
		<strong>White House concerns on Musk won't halt SpaceX contracts</strong>. The Biden White House is not moving away from Elon Musk’s SpaceX or Starlink technology despite condemning Musk for pushing antisemitic comments on social media, National Security Council spokesman John Kirby said Monday. Musk’s antisemitic X post last week drew a swift response from the White House. “We condemn this abhorrent promotion of antisemitic and racist hate in the strongest terms, which runs against our core values as Americans,” spokesman Andrew Bates said, <a href="https://www.cnbc.com/2023/11/20/white-house-slams-musk-antisemitic-post-but-says-foolish-to-drop-spacex-contracts.html" rel="external nofollow">according to CNBC</a>.
	</p>

	<p>
		 
	</p>

	<p>
		<em>Difficult to move away from innovative services</em> ... "There’s innovation out there in the private sector that we’d be foolish to walk away from,” Kirby replied, when a reporter asked if the government was reconsidering its contracts with Musk’s rocket maker and his high-speed satellite Internet provider. “I’m not aware of any specific efforts to address our concerns over his rhetoric through the way that his companies provide support to our national security establishment,” said Kirby. Just because the federal government has no plans to walk away from Musk’s technology, however, “doesn’t mean that we accept or agree with or condone in any way that antisemitic rhetoric that he pushed,” Kirby added.
	</p>

	<p>
		 
	</p>
</div>

<div class="article-content post-page" itemprop="articleBody">
	<p>
		<img alt="heavyl.png" class="ipsImage" data-ratio="14.46" height="81" width="560" src="https://cdn.arstechnica.net/wp-content/uploads/2018/05/heavyl.png">
	</p>

	<p>
		 
	</p>

	<p>
		<strong>Starship takes flight for the second time</strong>. SpaceX's Starship mega-rocket reached space for the first time Saturday, flying straight and true for more than eight minutes before exploding nearly 100 miles over the Gulf of Mexico downrange from the company's South Texas launch base, <a href="https://arstechnica.com/space/2023/11/spacex-can-celebrate-three-big-wins-after-second-starship-test-flight/" rel="external nofollow">Ars reports</a>. The flight profile for Saturday's test launch, designated Orbital Flight Test-2 (OFT-2), should have taken the unpiloted Starship on a trajectory to fly most of the way around the world before a targeted reentry and splashdown in the Pacific Ocean near Hawaii. In the end, the rocket didn't reach this objective, but the results Saturday were promising.
	</p>

	<p>
		 
	</p>

	<p>
		<em>A lot riding on this rocket</em> ... "We got the hot staging, the thing that we really wanted to see and test," said John Insprucker, a senior SpaceX engineer providing commentary during the company's official live broadcast of the test flight. "We saw the separation, we saw the flip maneuver, we saw the light-up of the six Raptor engines on Starship." SpaceX plans to use the rocket to launch massive payloads of numerous Starlink Internet satellites. NASA has a pair of contracts with SpaceX worth more than $4 billion to use a variant of Starship to land astronauts on the Moon. Private space travelers have also signed up to fly on Starship.
	</p>

	<p>
		 
	</p>

	<p>
		<strong>Actually, Starship had a remarkably successful flight</strong>. Despite uneven coverage by much of the media, SpaceX's Starship rocket had quite a successful test flight on Saturday, <a href="https://arstechnica.com/space/2023/11/heres-why-this-weekends-starship-launch-was-actually-a-huge-success/" rel="external nofollow">Ars reports</a>. The company enjoyed a nominal performance of the first stage, got the vehicle through the experimental hot-staging event, and obtained several minutes of performance data by the Starship upper stage's Raptor engines. SpaceX also validated the revamped design of its launch mount and water-based suppression system to mitigate launch-site damage.
	</p>

	<p>
		 
	</p>

	<p>
		<em>Still a lot of work to do</em> ... For all of that, the rocket and spacecraft ultimately blew up. Although this looks like an obvious failure, with the experimental nature of the test, it most definitely was not. Several sources at SpaceX reported that the internal mood at the company following the test flight was ecstatic and that the flight exceeded expectations. This was an important test of both the booster and upper stage that should allow SpaceX to reach a substantially higher cadence of Starship missions in 2024 as it continues to prove out the complex and highly ambitious vehicle.
	</p>

	<p>
		 
	</p>

	<p>
		<strong>Vulcan has a clear path to flight</strong>. United Launch Alliance is closing in on the debut flight of the Vulcan rocket, and it remains on track to fly the vehicle for the first time on December 24, <a href="https://arstechnica.com/space/2023/11/ula-chief-on-the-vulcan-rocket-the-path-to-flight-one-is-clear/" rel="external nofollow">Ars reports</a>. The last major piece of hardware for the rocket, the Centaur V upper stage, arrived at Cape Canaveral, Florida, last week. All of the qualification testing necessary for the first flight, including for the upper stage, is complete. During a media roundtable, United Launch Alliance CEO Tory Bruno said, “The path to flight one is clear" for Vulcan.
	</p>

	<p>
		 
	</p>

	<p>
		<em>Bound for the Moon</em> ... Bruno said United Launch Alliance, or ULA, has some margin in its schedule as it works toward a launch at 1:49 am ET on Christmas Eve. If the weather is poor, the company also has launch opportunities on December 25 and 26 before the closure of the launch window this year. The "Certification 1" mission would then have another launch opportunity during the first half of January. As its primary payload, the Certification 1 mission will carry a lunar lander built by Astrobotic, which will attempt to make a soft touchdown on the Moon early next year.
	</p>

	<p>
		 
	</p>

	<p>
		<strong>New Glenn first flight will carry a Mars mission</strong>. The first flight of Blue Origin's New Glenn rocket seems to finally have a payload. Instead of launching a sports car, as SpaceX did with its first Falcon Heavy rocket, Jeff Bezos' space company will likely launch a pair of Mars probes for NASA, <a href="https://arstechnica.com/space/2023/11/nasa-will-launch-a-mars-mission-on-blue-origins-first-new-glenn-rocket/" rel="external nofollow">Ars reports</a>. NASA is aware of the risk of launching a real science mission on the first flight of a new rocket. But this mission, known by the acronym ESCAPADE, is relatively low cost. The Escape and Plasma Acceleration and Dynamics Explorers mission has a budget of approximately $79 million, significantly less than any mission NASA has sent to Mars in recent history. The launch cost is $20 million.
	</p>

	<p>
		 
	</p>

	<p>
		<em>Giving thanks for a launch next year?</em> ... This mission will use two spacecraft to measure plasma and magnetic fields around the red planet. With simultaneous observations from two locations around Mars, scientists hope to learn more about the processes that strip away atoms from the magnetosphere and upper atmosphere, which drive Martian climate change. Because it's going to Mars, ESCAPADE has a relatively narrow window to get off the ground next year. Documents on the mission presented at public meetings earlier this year indicated it had a launch window in August 2024, but NASA said Monday that the mission is now set to fly "around this time next year." A debut of New Glenn in 2024, at any point, would be both welcome and surprising given the amount of work left to be done ahead of its liftoff.
	</p>

	<h2>
		Next three launches
	</h2>

	<p>
		<strong>November 23</strong>: Kuaizhou 1A | Unknown | Xichang Satellite Launch Center, China | 10:00 UTC
	</p>

	<p>
		 
	</p>

	<p>
		<strong>November 23</strong>: Soyuz 2.1 | Undeclared, but likely Bars-M No. 5 | Plesetsk Cosmodrome, Russia | 20:00 UTC
	</p>

	<p>
		 
	</p>

	<p>
		<strong>November 25</strong>: Falcon 9 | Starlink 6-30 | Cape Canaveral, Fla. | TBD
	</p>
</div>

<p>
	 
</p>

<p>
	<a href="https://arstechnica.com/space/2023/11/rocket-report-beyond-gravity-to-study-fairing-reuse-north-korea-launches-satellite/" rel="external nofollow">Source</a>
</p>
]]></description><guid isPermaLink="false">20250</guid><pubDate>Thu, 23 Nov 2023 17:13:29 +0000</pubDate></item><item><title>'Windows Refund Day' are available on YouTube.</title><link>https://nsaneforums.com/news/general-news/windows-refund-day-are-available-on-youtube-r20249/</link><description><![CDATA[<p>
	A movie telling the story of Windows Refund Day, a massive demonstration in which Linux users asked Microsoft for refunds, is now available on YouTube.
</p>

<blockquote class="ipsQuote" data-ipsquote="">
	<div class="ipsQuote_citation">
		Quote
	</div>

	<div class="ipsQuote_contents">
		<div class="ipsEmbeddedVideo" contenteditable="false">
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				<iframe allowfullscreen="" frameborder="0" height="113" src="https://www.youtube-nocookie.com/embed/1j9j-Ywjmbk?feature=oembed" title="Windows Refund Day - When Linux Users Demanded Their Money Back" width="200"></iframe>
			</div>
		</div>

		<p>
			<strong>Windows Refund Day - When Linux Users Demanded Their Money Back - YouTube</strong>
		</p>
	</div>
</blockquote>

<p>
	In the 1990s, Linux users who do not use Windows complained that Microsoft pre-installed Windows on commercial PCs and included the license fee in the price of the PC.<a href="https://www.youtube.com/@MichaelMJD" rel="external nofollow">Michael MJD</a>, a YouTube channel that deals with information on old PCs, has posted a video from the "Windows Refund Day," a demonstration held to demand a refund of the license fee from Microsoft, with commentary.Windows Refund Day" was a massive demonstration on February 15, 1999, in front of Microsoft's headquarters by some users demanding a refund of their Windows license fees.
</p>

<p>
	 
</p>

<p style="text-align:center;">
	<img alt="00-m.jpg" class="ipsImage" data-ratio="56.25" height="315" width="560" src="https://i.postimg.cc/Znc9NM55/00-m.jpg" />
</p>

<p>
	 
</p>

<p>
	In 1999, most PCs came with Windows 98 pre-installed, and since the price of the PC included the Windows license fee, users who wanted to use an OS other than Windows, such as Linux, had to pay for a Windows license fee that they did not use. Although the Windows license agreement stated that refunds could be made by contacting the PC manufacturer, few PC manufacturers actually agreed to the refunds.
</p>

<p>
	In 1999, a Linux user group called "Silicon Valley Linux User Group" led a march to Microsoft's headquarters.
</p>

<p>
	 
</p>

<p>
	 
</p>

<p style="text-align:center;">
	<img alt="01-m.jpg" class="ipsImage" data-ratio="56.25" height="315" width="560" src="https://i.postimg.cc/XqFR1RCn/01-m.jpg" />            <img alt="02-m.jpg" class="ipsImage" data-ratio="56.25" height="315" width="560" src="https://i.postimg.cc/Qx3wxn7W/02-m.jpg" />
</p>

<p style="text-align:center;">
	A Linux user group called "Silicon Valley Linux User Group" led a protest to Microsoft's headquarters.
</p>

<p style="text-align:center;">
	 
</p>

<p style="text-align:center;">
	 
</p>

<p style="text-align:center;">
	<img alt="03-m.jpg" class="ipsImage" data-ratio="56.25" height="315" width="560" src="https://i.postimg.cc/3wTdLh0x/03-m.jpg" />
</p>

<p style="text-align:center;">
	Windows 98 manual
</p>

<p style="text-align:center;">
	 
</p>

<p style="text-align:center;">
	 
</p>

<p style="text-align:center;">
	<img alt="02.jpg" class="ipsImage" data-ratio="61.12" height="327" width="535" src="https://i.postimg.cc/3NRBdm3V/02.jpg" />
</p>

<p style="text-align:center;">
	"The back of the T-shirts worn by the participants is printed with the mascot of Linux, which is a penguin called Tux."
</p>

<p style="text-align:center;">
	 
</p>

<p style="text-align:center;">
	 
</p>

<p style="text-align:center;">
	<img alt="analprobe.jpg" class="ipsImage" data-ratio="133.50" height="526" width="394" src="https://i.postimg.cc/1tRbPvjZ/analprobe.jpg" />
</p>

<p style="text-align:center;">
	 "Over 150 people joined the protest, and it made national news in the United States."
</p>

<p style="text-align:center;">
	 
</p>

<p style="text-align:center;">
	 
</p>

<p style="text-align:center;">
	<img alt="08-m.jpg" class="ipsImage" data-ratio="56.25" height="315" width="560" src="https://i.postimg.cc/nL9NLsH3/08-m.jpg" />
</p>

<p style="text-align:center;">
	http://www.loyalty.org/~schoen/dear-valued-customer.html
</p>

<p style="text-align:center;">
	A Microsoft spokesman commented to the press, "I think this protest is a PR activity to raise the interest of some Linux fans in Linux," indicating that refunds should be made by the PC makers.
</p>

<p style="text-align:center;">
	 
</p>

<p style="text-align:center;">
	A member of the Silicon Valley Linux User Group, frustrated by this attitude of Microsoft, was about to get into Microsoft's headquarters. However,
</p>

<p style="text-align:center;">
	the elevator was set to not stop at the 9th floor where the headquarters office is located, so the members could not get into Microsoft after all.
</p>

<p style="text-align:center;">
	 
</p>

<p style="text-align:center;">
	 
</p>

<pre class="ipsCode prettyprint lang-html prettyprinted"><span class="pln">Source : http://marc.merlins.org/linux/refundday/</span></pre>

<p>
	 
</p>
]]></description><guid isPermaLink="false">20249</guid><pubDate>Thu, 23 Nov 2023 11:02:23 +0000</pubDate></item><item><title>NASA will launch a Mars mission on Blue Origin&#x2019;s first New Glenn rocket</title><link>https://nsaneforums.com/news/general-news/nasa-will-launch-a-mars-mission-on-blue-origin%E2%80%99s-first-new-glenn-rocket-r20244/</link><description><![CDATA[<h3>
	This Mars mission is relatively modest in cost, so NASA thinks it's worth the risk.
</h3>

<div class="article-content post-page" itemprop="articleBody">
	
	<p>
		The first flight of Blue Origin's New Glenn rocket seems to have a payload. Instead of launching a sports car, as SpaceX did with its first Falcon Heavy rocket, Jeff Bezos's space company will likely launch a pair of Mars probes for NASA.
	</p>

	<p>
		 
	</p>

	<p>
		NASA is aware of the risk of launching a real science mission on the first flight of a new rocket. But this mission, known by the acronym ESCAPADE, is relatively low cost. The Escape and Plasma Acceleration and Dynamics Explorers mission has a budget of approximately $79 million, significantly less than any mission NASA has sent to Mars in recent history.
	</p>

	<p>
		 
	</p>

	<p>
		This mission will use two spacecraft to measure plasma and magnetic fields around the red planet. With simultaneous observations from two locations around Mars, scientists hope to learn more about the processes that strip away atoms from the magnetosphere and upper atmosphere, which drive Martian climate change.
	</p>

	<p>
		 
	</p>

	<p>
		ESCAPADE is part of a new class of small planetary science missions in which scientists can propose concepts for modest probes to explore the solar system. The relatively low cost of these missions allows NASA to accept some additional risk. The agency wouldn't be comfortable putting a billion-dollar Mars mission on any unproven rocket.
	</p>

	<p>
		 
	</p>

	<p>
		Bradley Smith, director of launch services at NASA, said Monday that the ESCAPADE mission will "very likely be the very first launch of New Glenn." He told a NASA advisory committee that this would be an "incredible ambitious launch for New Glenn."
	</p>

	<h2>
		Taking a chance
	</h2>

	<p>
		Because it's going to Mars, ESCAPADE has a relatively narrow window to get off the ground next year. Documents on the mission presented at public meetings earlier this year indicated it had a launch window in August 2024, but Smith said Monday that the mission is now set to fly "around this time next year."
	</p>

	<p>
		 
	</p>

	<p>
		Rob Lillis, the mission's principal investigator from the University of California Berkeley’s Space Science Laboratory, wrote on social media in April that the August 2024 launch window is "approximate and provisional." He said engineers were still working on different trajectory options for ESCAPADE. Those options range from deploying the satellites into an orbit around Earth, then using their own propulsion to head for Mars, or a launch directly to the red planet.
	</p>

	<p>
		 
	</p>

	<p>
		The heavy-lift New Glenn rocket should have more than enough capability to send the two ESCAPADE satellites, each a little more than a half-ton in mass, on a direct-to-Mars trajectory. Ars asked Lillis and a NASA spokesperson this week for an update on the trajectory, but neither offered any new details. A Blue Origin spokesperson did not respond to questions from Ars.
	</p>

	<p>
		 
	</p>

	<p>
		Mars launch windows typically come every 26 months, so if ESCAPADE isn't off the ground in late 2024, the next launch opportunity would be in late 2026. ESCAPADE was originally assigned to launch as a secondary payload on a Falcon Heavy rocket <a href="https://arstechnica.com/space/2023/10/nasa-is-about-to-launch-a-mission-of-pure-discovery-to-a-metal-asteroid/" rel="external nofollow">with NASA's Psyche asteroid mission</a>, which took off in October, but NASA removed ESCAPADE from the launch because it would not provide the mission with the proper trajectory.
	</p>

	<p>
		 
	</p>

	<p>
		Since then, engineers redesigned the ESCAPADE mission to take advantage of a larger spacecraft platform built by Rocket Lab, which provides additional propulsive capability. In February, NASA announced the launch contract with Blue Origin for ESCAPADE to fly on one of the early New Glenn missions. Now, this Mars mission has moved up in the queue to be first in line on the New Glenn manifest.
	</p>

	<p>
		 
	</p>

	<p>
		<img alt="ESCAPADE-640x824.jpg" class="ipsImage" data-ratio="84.38" height="540" width="419" src="https://cdn.arstechnica.net/wp-content/uploads/2023/11/ESCAPADE-640x824.jpg">
	</p>

	<div>
		<em>In this artist's concept, the two ESCAPADE satellites orbit </em>
	</div>

	<div>
		<em>Mars to study the planet's magnetosphere.</em>
	</div>

	<div>
		<em>Rocket Lab/UC Berkeley</em>
	</div>

	<p>
		 
	</p>

	<p>
		The first launch of Blue Origin's New Glenn rocket was originally scheduled for 2020, but it's <a href="https://arstechnica.com/science/2021/03/so-what-really-happened-with-blue-origins-new-glenn-rocket/" rel="external nofollow">now running four years late</a>. The New Glenn will be Blue Origin's first orbital-class rocket, and it's a big one, with a height of more than 320 feet (98 meters) and a 23-foot-diameter (7-meter) payload fairing, larger than any other currently operational rocket.
	</p>

	<p>
		 
	</p>

	<p>
		The rocket can lift nearly 100,000 pounds (45 metric tons) of payload into low-Earth orbit, according to Blue Origin. This is a weight class above the uppermost capability of United Launch Alliance's Vulcan rocket or SpaceX's Falcon 9 rocket but below SpaceX's Falcon Heavy.
	</p>

	<p>
		 
	</p>

	<p>
		NASA says it got a good deal from Blue Origin on the ESCAPADE launch contract. Procurement documents suggest the deal is worth $20 million, a price tag that Smith said reflects the risk of launching on the first flight of a new rocket.
	</p>

	<p>
		 
	</p>

	<p>
		But there's not just the risk of a failed launch. Given Blue Origin's history of delays, it's fair to question whether New Glenn will really be ready to fly in a year's time. The company's launch pad at Cape Canaveral Space Force Station in Florida is complete, and production of rocket parts is underway at Blue Origin factory a few miles away.
	</p>

	<p>
		 
	</p>

	<p>
		But Blue Origin hasn't rolled a full-scale New Glenn rocket out to the launch pad for testing, including propellant loading and countdown rehearsals. These first-time launch pad tests have run for several months to more than a year for other rockets, such as SpaceX's Starship, ULA's Vulcan, or Europe's Ariane 6.
	</p>

	<p>
		 
	</p>

	<p>
		"There's certainly some schedule risk associated with New Glenn getting to the pad a year from now," Smith said. "They're building hardware ... I've seen their schedule. I'm not going to put a percentage out there."
	</p>

	<p>
		 
	</p>

	<p>
		NASA contracted the launch with Blue Origin through a venture-class procurement initiative, which usually works with smaller rockets like Rocket Lab's Electron or Firefly's Alpha.
	</p>

	<p>
		 
	</p>

	<p>
		"As a trade-off of taking a little more risk on an unproven rocket, your deliverables are a little bit different, and your confidence in making a call to your customer about when you're ready to go fly is a little bit diminished," Smith said.
	</p>

	<p>
		 
	</p>
</div>

<p>
	<a href="https://arstechnica.com/space/2023/11/nasa-will-launch-a-mars-mission-on-blue-origins-first-new-glenn-rocket/" rel="external nofollow">Source</a>
</p>
]]></description><guid isPermaLink="false">20244</guid><pubDate>Thu, 23 Nov 2023 04:24:37 +0000</pubDate></item><item><title>Daily Telescope: The Milky Way soars above Devil&#x2019;s Kitchen</title><link>https://nsaneforums.com/news/general-news/daily-telescope-the-milky-way-soars-above-devil%E2%80%99s-kitchen-r20235/</link><description><![CDATA[<h3>
	"Along this loop is a set of red rock hoodoos that pop out of seemingly nowhere."
</h3>

<div class="article-content post-page" itemprop="articleBody">
	<p>
		<img alt="The-Devils-Milky-Way-800x800.jpg" class="ipsImage" data-ratio="75.10" height="540" width="540" src="https://cdn.arstechnica.net/wp-content/uploads/2023/11/The-Devils-Milky-Way-800x800.jpg">
	</p>

	<div>
		<em>Behold, it's the Devil's Milky Way.</em>
	</div>

	<div>
		<em>Taylor Thomas</em>
	</div>

	<p>
		 
	</p>

	<div class="article-intro">
		Welcome to the <a href="https://arstechnica.com/tag/daily-telescope/" rel="external nofollow">Daily Telescope</a>. There is a little too much darkness in this world and not enough light, a little too much pseudoscience and not enough science. We'll let other publications offer you a daily horoscope. At Ars Technica, we're going to take a different route, finding inspiration from very real images of a universe that is filled with stars and wonder.
	</div>
	

	<p>
		 
	</p>

	<p>
		Good morning. It's November 22, and today's photo showcases our very own Milky Way Galaxy above the red rocks of Utah.
	</p>

	<p>
		 
	</p>

	<p>
		If you've ever hiked in Utah, chances are you've heard of the Mount Nebo Loop south of Provo. One of the best features along this hike is Devil's Kitchen, which features pillars and other interesting rock formations. Taylor Thomas snapped this photograph this summer while visiting the popular outdoor area.
	</p>

	<p>
		 
	</p>

	<p>
		"Along this loop is a set of red rock <a href="https://en.wikipedia.org/wiki/Hoodoo_(geology)" rel="external nofollow">hoodoos</a> that pop out of seemingly nowhere amidst the pine trees," Thomas told me. "This photo is technically a panoramic stitched together from three pictures, all single exposures taken at almost the same time with the slightest amount of light painting to illuminate the rocks. No other stacking or multiple exposures and I took as minimal touch as possible with editing."
	</p>

	<p>
		 
	</p>

	<p>
		Thomas deftly captured the beauty of the Earthly rocks contrasted with the Milky Way—as I'm sure you'll agree.
	</p>

	<p>
		 
	</p>

	<p>
		Today is the last day before the Thanksgiving holiday in the United States. After this morning, I'm off for the rest of this week and taking next week off from Ars to work on a book project. Therefore, I'll put a lens cap on the Daily Telescope until December 5. See you then.
	</p>

	<p>
		 
	</p>

	<p>
		Source: Taylor Thomas
	</p>

	<p>
		 
	</p>
</div>

<p>
	<a href="https://arstechnica.com/space/2023/11/daily-telescope-the-milky-way-soars-above-devils-kitchen/" rel="external nofollow">Source</a>
</p>
]]></description><guid isPermaLink="false">20235</guid><pubDate>Wed, 22 Nov 2023 17:11:25 +0000</pubDate></item><item><title>Daily Telescope: A snapshot of 500,000 stars near the center of the galaxy</title><link>https://nsaneforums.com/news/general-news/daily-telescope-a-snapshot-of-500000-stars-near-the-center-of-the-galaxy-r20207/</link><description><![CDATA[<h3>
	Webb reveals the Sagittarius C region of the Milky Way.
</h3>

<div class="article-content post-page" itemprop="articleBody">
	<p>
		<img alt="weic2328a-800x303.jpg" class="ipsImage" data-ratio="41.94" height="272" width="720" src="https://cdn.arstechnica.net/wp-content/uploads/2023/11/weic2328a-800x303.jpg">
	</p>

	<div>
		<em>A 50-light-years-wide portion of the Milky Way’s dense center.</em>
	</div>

	<div>
		<em>NASA, ESA, CSA, STScI, S. Crowe</em>
	</div>

	<p>
		 
	</p>

	<div class="article-intro">
		Welcome to the <a href="https://arstechnica.com/tag/daily-telescope/" rel="external nofollow">Daily Telescope</a>. There is a little too much darkness in this world and not enough light, a little too much pseudoscience and not enough science. We'll let other publications offer you a daily horoscope. At Ars Technica, we're going to take a different route, finding inspiration from very real images of a universe that is filled with stars and wonder.
	</div>
	

	<p>
		 
	</p>

	<p>
		Good morning. It's November 21, and today's image takes us into the heart of our galaxy.
	</p>

	<p>
		 
	</p>

	<p>
		Specifically, the image from the James Webb Space Telescope features a star-forming region named Sagittarius C, which is about 300 light-years from the Milky Way’s central supermassive black hole.
	</p>

	<p>
		 
	</p>

	<p>
		<a href="https://esawebb.org/news/weic2328/" rel="external nofollow">According to astronomers</a>, there are about 500,000 stars in this image. Because the center of the galaxy is relatively close at 25,000 light-years away—compared to the distance of other galaxies from our own—Webb can discern lots of details about individual stars. This image, in particular, will provide important insights into the nature of stellar formation.
	</p>

	<p>
		 
	</p>

	<p>
		Here's some more detail on this image from the European Space Agency: "At the heart of this young cluster is a previously known, massive protostar over 30 times the mass of our Sun. The cloud the protostars are emerging from is so dense that the light from stars behind it cannot reach Webb, making it appear less crowded when in fact it is one of the most densely packed areas of the image. Smaller infrared-dark clouds dot the image, looking like holes in the star field. That’s where future stars are forming."
	</p>

	<p>
		 
	</p>

	<p>
		Source: <a href="https://esawebb.org/news/weic2328/" rel="external nofollow">NASA, ESA, CSA, STScI, S. Crowe</a>.
	</p>

	<p>
		 
	</p>
</div>

<p>
	<a href="https://arstechnica.com/space/2023/11/daily-telescope-peering-into-the-dense-center-of-our-galaxy/" rel="external nofollow">Source</a>
</p>
]]></description><guid isPermaLink="false">20207</guid><pubDate>Tue, 21 Nov 2023 18:03:08 +0000</pubDate></item><item><title>Satya Nadella: "We have all the rights and all the capability."</title><link>https://nsaneforums.com/news/general-news/satya-nadella-we-have-all-the-rights-and-all-the-capability-r20206/</link><description><![CDATA[<p>
	<span style="font-size:22px;">Microsoft CEO went on a podcast with Kara Swisher to talk about the diabolical events happening at OpenAI.</span>
</p>

<p>
	 
</p>

<p>
	We're four full days into the OpenAI fiasco, and it still hasn't been made clear about what happened or why Sam Altman was fired. After the Friday events, Microsoft stepped in Monday to offer Altman and Greg Brockman a job at Microsoft to work on AI research. Then, a few hours later - Ilya Sutsever, believed to be one of the instigators, came out to say that he regretted his decision.
</p>

<p>
	 
</p>

<p>
	And shortly after that, the entire OpenAI team made an ultimatum to the board - "either resign, or we will leave". The letter that the OpenAI employees prepared initially had 500 signatures (out of 700~ employees), and recent reports say that that number is almost 100% now.
</p>

<p>
	 
</p>

<p>
	This is arguably the most shocking news story of the year (OpenAI leading the pack two years in row!), so naturally there is a lot of debate, speculation and arguments being presented. However, we still don't know for certain what is going on. Since the letter was proposed to the board, there has been no response from anyone at the OpenAI team. Bloomberg reports that some investors are considering lawsuits to make the situation right (whatever that means).
</p>

<p>
	 
</p>

<p>
	Not only that, it's gotten to the point where other CEOs are openly proposing offers to existing OpenAI employees. Marc Benioff, the CEO of Salesforce, posted on X earlier:
</p>

<p>
	 
</p>

<p style="text-align:center;">
	<img alt="tweet-1726695914105090498-768x768.png" class="ipsImage" data-ratio="75.10" height="540" width="540" src="https://stackdiary.com/wp-content/uploads/2023/11/tweet-1726695914105090498-768x768.png" />
</p>

<p>
	And things will progressively get worse for however long this keeps dragging on. The interim CEO, Emmett Shear, has not publicly commented on rectifying the situation since being appointed.
</p>

<p>
	 
</p>

<p>
	But this isn't just about OpenAI, the company.
</p>

<p>
	 
</p>

<p>
	This is also about the people and, more importantly, the 2 million developers who use the OpenAI API. Whether for personal purposes or business. There has been an enormous amount of self-made people on Twitter, Discord, and other social media platforms worrying that the world is about to come crashing down on the dreams that OpenAI has enabled them to accomplish.
</p>

<p>
	 
</p>

<p>
	<span style="font-size:22px;"><strong>"We have all the rights and all the capability."</strong></span>
</p>

<p>
	<br />
	As the situation continues to unfold, Satya Nadella, Microsoft's CEO, did some public speaking on the matter. Nadella spoke with Kara Swisher on Spotify, addressing several key points relevant to the current crisis.
</p>

<p>
	 
</p>

<p>
	Nadella emphasized Microsoft's deep involvement in AI development alongside OpenAI. Despite the upheaval, he reassured that Microsoft retains "all the rights and all the capability" necessary for AI innovation. This statement suggests a robust backup plan, ensuring the continuity of services and technologies developed in partnership with OpenAI.
</p>

<p>
	 
</p>

<p>
	Microsoft's investment in OpenAI, as Nadella highlighted, is not just financial but also includes significant contributions in terms of computing resources. This investment grants Microsoft substantial rights and a strong position in any future developments, regardless of OpenAI's internal changes.
</p>

<p>
	 
</p>

<p>
	The interview also touched on the potential absorption of OpenAI talent into Microsoft. As highlighted earlier, over 600 OpenAI employees are considering leaving unless the board resigns, Microsoft appears ready to welcome these AI experts, potentially under the leadership of Sam Altman in a newly formed advanced AI research team within Microsoft.
</p>

<p>
	 
</p>

<p>
	For the 2 million developers using OpenAI's API and the wider AI community, Nadella's statements offer reassurance. Microsoft's commitment and capability to continue AI development could mean stability and continuity for those relying on OpenAI's technologies.
</p>

<p>
	 
</p>

<p>
	While the OpenAI board and leadership crisis remains unresolved, Nadella's interview indicates that Microsoft is poised to play a crucial role in shaping the future of AI, potentially absorbing OpenAI's mission and talent into its own expansive ecosystem. This development could significantly influence the trajectory of AI research and application in the coming years.
</p>

<p>
	 
</p>

<p>
	<span style="font-size:22px;"><strong>The actual contract Microsoft has with OpenAI is not publicly available</strong></span>
</p>

<p>
	<br />
	As per this WSJ report back in June, the partnership between Microsoft and OpenAI is both highly impactful and complex, marked by mutual benefits and underlying tensions. While Microsoft's significant investment has afforded it early access to every product that OpenAI develops, the company deliberately kept its stake at 49%, likely to sidestep antitrust concerns.
</p>

<p>
	 
</p>

<p>
	Internally, this partnership has not been without its challenges. Microsoft has faced internal criticisms over decreased investment in its in-house AI development and limited access to the core aspects of OpenAI's technology for most of its employees. Despite the significant investment and collaboration, most Microsoft employees interact with OpenAI’s technology as they would with any external vendor, with only a select few teams having deeper access.
</p>

<p>
	 
</p>

<p>
	This is yet another hint that Microsoft does have access the internal code of OpenAI's models, and if worst comes to worst - it is without a doubt that Microsoft could find a legal means to retain that code should OpenAI be unable to rectify its current predicament.
</p>

<p>
	 
</p>

<p>
	<em>This is still a developing story... see you in the next one.</em>
</p>

<p>
	 
</p>

<p>
	<strong><a href="https://stackdiary.com/satya-nadella-we-have-all-the-rights-and-all-the-capability/" rel="external nofollow">Source</a></strong>
</p>
]]></description><guid isPermaLink="false">20206</guid><pubDate>Tue, 21 Nov 2023 17:37:31 +0000</pubDate></item><item><title>Microsoft CEO Satya Nadella is dodging questions on if Sam Altman might return to OpenAI</title><link>https://nsaneforums.com/news/general-news/microsoft-ceo-satya-nadella-is-dodging-questions-on-if-sam-altman-might-return-to-openai-r20205/</link><description><![CDATA[<p>
	In case you are wondering about the current status of OpenAI, the company behind ChatGPT, everything is still up in the air. Sam Altman was fired as its CEO on Friday by its board members, then he tried over the weekend to get brought back to no avail. Microsoft hired him and several other OpenAI employees to join that company to form a new AI team, but then most of OpenAI's employees signed a letter, demanding the board bring Altman back, or they might resign.
</p>

<p>
	 
</p>

<div class="ipsEmbeddedVideo" contenteditable="false">
	<div>
		<iframe allowfullscreen="" frameborder="0" height="113" src="https://www.youtube-nocookie.com/embed/Ut9zcpOEGgc?feature=oembed" title="Microsoft Wants to Work With OpenAI’s Sam Altman, No Matter Where he is, CEO Nadella Says" width="200"></iframe>
	</div>
</div>

<p>
	 
</p>

<p>
	Monday, Microsoft CEO Satya Nadella decided to make himself open to questions from business media outlets. In a video interview with Bloomberg, reporter Emily Chang asked Nadella directly if Altman told him he wanted to return to OpenAI, but he did not give a direct answer:
</p>

<p>
	 
</p>

<p style="margin-left:40px;">
	<em>We really want to partner with OpenAI and we want to partner with Sam. And so In respect of where Sam is, he is working with Microsoft, and that is the case on Friday and that is the case today, and I absolutely believe that will be the case tomorrow.</em>
</p>

<p style="margin-left:40px;">
	 
</p>

<p>
	 
</p>

<div class="ipsEmbeddedVideo" contenteditable="false">
	<div>
		<iframe allowfullscreen="" frameborder="0" height="113" src="https://www.youtube-nocookie.com/embed/NO0PWmuE8XI?feature=oembed" title="Microsoft CEO Satya Nadella: Microsoft can innovate on its own but 'we chose to partner with OpenAI'" width="200"></iframe>
	</div>
</div>

<p>
	 
</p>

<p>
	When asked in an interview with CNBC whether it was clear or not if Altman was going back to OpenAI and if all those employees might join him or join Microsoft, Nadella also punted on that subject:
</p>

<p>
	 
</p>

<p style="margin-left:40px;">
	<em>That is for, you know, OpenAI board and management and the employees to choose. I think at this point for me, I just want in this moment, what is it that I care about? I care about just making sure that we can continue to innovate and, as I said, I feel very, very confident, quite frankly, Microsoft has all the capability to just do that on our own. But we chose to explicitly partner with OpenAI and we want to continue to do so and obviously that depends on the people of OpenAI and staying there or coming to Microsoft so I'm open to both options.</em>
</p>

<p>
	 
</p>

<p>
	Nadella also stated in the Bloomberg interview he was not aware of any wrongdoing by Altman that would have caused the OpenAI board to fire him on Friday.
</p>

<p>
	 
</p>

<p>
	The latest on this situation comes from Bloomberg, which reports that in a memo sent to OpenAI employees, the company's global affairs VP Anna Makanju stated that the remaining board members, and its current interim CEO Emmett Shear are still in some kind of talks with Altman. Those talks are supposed to continue later today.
</p>

<p>
	 
</p>

<p>
	<strong><a href="https://www.neowin.net/news/microsoft-ceo-satya-nadella-is-dodging-questions-on-if-sam-altman-might-return-to-openai/" rel="external nofollow">Source</a></strong>
</p>
]]></description><guid isPermaLink="false">20205</guid><pubDate>Tue, 21 Nov 2023 17:33:15 +0000</pubDate></item><item><title>Why it was so easy for OpenAI's board to fire Sam Altman, one of the most influential CEOs in tech</title><link>https://nsaneforums.com/news/general-news/why-it-was-so-easy-for-openais-board-to-fire-sam-altman-one-of-the-most-influential-ceos-in-tech-r20204/</link><description><![CDATA[<ul>
	<li>
		<span style="font-size:18px;"><strong>OpenAI's board of directors fired Sam Altman, the man behind ChatGPT, in a shock move on Friday. </strong></span>
	</li>
</ul>

<p>
	 
</p>

<ul>
	<li>
		<span style="font-size:18px;"><strong>The board provided little notice to its shareholders and even big investors like Microsoft.</strong></span>
	</li>
</ul>

<p>
	 
</p>

<ul>
	<li>
		<span style="font-size:18px;"><strong>Yahoo's CEO said OpenAI's "crazy governance model" is to blame for Altman's abrupt removal from the firm.</strong></span>
	</li>
</ul>

<p>
	 
</p>

<p>
	OpenAI's board ousted its high-profile CEO and the man behind its chatbot superstar ChatGPT, Sam Altman on Friday, in a move that shocked its investors and the tech industry as a whole.
</p>

<p>
	 
</p>

<p>
	OpenAI's board announced Friday that Altman is out saying it "no longer has confidence in his ability to continue leading OpenAI." 
</p>

<p>
	 
</p>

<p>
	The board did not notify its investors of this decision in advance, including Microsoft which invested over $10 billion into the AI firm and even owns as much as 49% of it, according to some reports. 
</p>

<p>
	 
</p>

<p>
	The board consisted of six people including OpenAI's president and cofounder Greg Brockman, OpenAI's chief scientist Ilya Sutskever, Adam D'Angelo, Tasha McCauley, Helen Toner and Sam Altman himself. 
</p>

<p>
	 
</p>

<p>
	Altman and Brockman were not privy to the decision beforehand, raising concerns about why and how a leading tech figure was pushed out of a company he cofounded so effortlessly. 
</p>

<p>
	 
</p>

<p>
	John Bates, a British tech entrepreneur and former fellow at Cambridge University, told Business Insider that CEOs are often "working at the pleasure of the board of directors." 
</p>

<p>
	 
</p>

<p>
	"It's part of the board's job, hiring and firing CEOs, whether it's a public company, private company, or whatever." 
</p>

<p>
	 
</p>

<p>
	He pointed out that even CEOs are "at-will employees," at US companies, but that OpenAI's board "behaved like a bunch of kids" and "erratically" in this instance.
</p>

<p>
	 
</p>

<p>
	"I don't think there's anything wrong in principle with boards firing CEOs," he said. "That's a good and necessary thing. We have to have that because we don't want dictators who can't be removed if they behave badly. It's just, in this case, the system's gone wrong because the board have not communicated what they've done, they've not thought of the shareholders, they've not thought of the staff." 
</p>

<p>
	 
</p>

<p>
	Microsoft's CEO Satya Nadella said on Kara Swisher's podcast on Monday that the tech giant should have been "consulted" before Altman was ousted because of its investment in the company. It's the "very least," they could have done, he said.
</p>

<p>
	 
</p>

<p>
	"They have the right to do this, but that board's behaved very oddly because the first thing you do is socialize this with your shareholders," Bates told BI.
</p>

<p>
	 
</p>

<p>
	"You have a responsibility. They may not feel the need to do that but maybe they're just an immature board." 
</p>

<p>
	 
</p>

<p>
	He added: "This is one of the most important companies in the world. It's doing amazing things. It has a $13 billion investment from Microsoft and to behave so naively in front of the world, I think really hits the credibility of that company."
</p>

<p>
	 
</p>

<p>
	Yahoo's former CEO Marissa Mayer agrees with this view and said on X — formerly Twitter — that OpenAI's "crazy governance model," is what enabled Altman to be pushed out. Mayer added that its board members were "broken and underadvised." 
</p>

<p>
	 
</p>

<p>
	<span style="font-size:22px;"><strong>It partly comes down to OpenAI's atypical structure </strong></span>
</p>

<p>
	 
</p>

<p>
	OpenAI was founded as non-profit company in 2015 to build artificial intelligence in a way that is responsible and beneficial for the public. It then created a capped-profit company OpenAI LP in 2019 to raise investments while limiting the profits made. It received a huge $1 billion investment from Microsoft at the time. 
</p>

<p>
	 
</p>

<p>
	Most of OpenAI's board members don't own shares in the company, including Sam Altman himself who chose not to take any equity in, which ultimately limited his power and influence. A simple majority vote from board members was all it would take to get rid of him.
</p>

<p>
	 
</p>

<p>
	This stands in great contrast to companies like Google and Meta. For example, Mark Zuckerberg is virtually unfireable because Meta has a dual-class structure. This means that the company has two types of stocks which provides different voting rights to shareholders. 
</p>

<p>
	 
</p>

<p>
	Zuckerberg holds a type of stock that gives him greater voting rights and decision-making powers at the company than any other shareholder, making him almost untouchable, BI previously reported. 
</p>

<p>
	 
</p>

<p>
	Bates said Altman's decision to forego equity was "strange" but he may have been "inspired by the goal of changing the world." 
</p>

<p>
	 
</p>

<p>
	"To young people, what's increasingly more important is solving climate change, helping the world, helping people, that's all more important than money."
</p>

<p>
	 
</p>

<p>
	<strong><a href="https://www.businessinsider.com/why-it-was-easy-openai-board-fire-ceo-sam-altman-2023-11" rel="external nofollow">Source</a></strong>
</p>
]]></description><guid isPermaLink="false">20204</guid><pubDate>Tue, 21 Nov 2023 17:29:48 +0000</pubDate></item><item><title>Tehran University plans to build branch in India</title><link>https://nsaneforums.com/news/general-news/tehran-university-plans-to-build-branch-in-india-r20203/</link><description><![CDATA[<p>
	The President of the University of Tehran (UT) Seyyed Mohammad Moqimi made the comments in a meeting with the Indian Ambassador Rudra Gaurav Shresth in Tehran on Tuesday.
</p>

<p>
	 
</p>

<p>
	Referring to the cultural similarities between Iran and India, the UT president emphasized the need to develop scientific, academic, economic and political relations between the two countries.
</p>

<p>
	 
</p>

<p>
	"The University of Tehran is developing international cooperation with considering neighboring countries that share common viewpoints with the Islamic Republic of Iran as a priority," Moqimi said, adding that, "In this regard, we have started activities to set up Tehran University branch in Iraq and we have made agreements with Iraqi governmental and non-governmental sectors in order to set up Tehran University branch in different cities of Iraq."
</p>

<p>
	 
</p>

<p>
	The UT President of Tehran University further stated that holy Najaf is the first city targeted in Iraq for the establishment of the first branch of  the University in the neighboring country, adding that, "In Syria, we have also started a joint cooperation with Damascus University in order to establish a branch of Tehran University in that country. Also, at the Georgia branch of Tehran University, we are going to enroll students from February 2024."
</p>

<p>
	 
</p>

<p>
	Referring to the experience of holding seven meetings of presidents of major Iranian and Russian universities in Tehran and Moscow, he announced the planning to create the same experience between the major universities of Iran and China, with the two universities of Tehran and Nanjing at the center of the activities, and by proposing to hold a meeting of presidents of universities between Iran and India.
</p>

<p>
	 
</p>

<p>
	"I suggest that a joint university parliament be formed between major universities of Iran and India, its secretariat should be located in Tehran University," Moqimi added.
</p>

<p>
	 
</p>

<p>
	The ambassador of India Shresth, for his part, welcomed the suggestion to establish the branch of Tehran University in India, and considered the idea of the president of Tehran University to establish a joint university parliament between India and Iran as a promising idea for progress in bilateral cooperation.
</p>

<p>
	 
</p>

<p>
	<strong><a href="https://en.mehrnews.com/news/208659/Tehran-University-plans-to-build-branch-in-India" rel="external nofollow">Source</a></strong>
</p>
]]></description><guid isPermaLink="false">20203</guid><pubDate>Tue, 21 Nov 2023 15:49:28 +0000</pubDate></item><item><title>Study shows how AI can detect antibiotic resistance in as little as 30 minutes</title><link>https://nsaneforums.com/news/general-news/study-shows-how-ai-can-detect-antibiotic-resistance-in-as-little-as-30-minutes-r20202/</link><description><![CDATA[<p>
	To mark World Antimicrobial Awareness Week, researchers supported by the Oxford Martin Program on Antimicrobial Resistance Testing at the University of Oxford have reported advances towards a novel and rapid antimicrobial susceptibility test that can return results within as little as 30 minutes—significantly faster than current gold-standard approaches.
</p>

<p>
	 
</p>

<p>
	The study, "Deep learning and single-cell phenotyping for rapid antimicrobial susceptibility detection in Escherichia coli," has been published in Communications Biology.
</p>

<p>
	 
</p>

<p>
	In their study, the team used a combination of fluorescence microscopy and artificial intelligence (AI) to detect antimicrobial resistance (AMR). This method relies on training deep-learning models to analyze bacterial cell images and detect structural changes that may occur in cells when they are treated with antibiotics. The method was shown to be effective across multiple antibiotics, achieving at least 80% accuracy on a per-cell basis.
</p>

<p>
	 
</p>

<p>
	The researchers say their model could be used to identify whether cells in clinical samples are resistant to a range of a wide variety of antibiotics in the future.
</p>

<p>
	 
</p>

<p>
	Co-author of the paper Achillefs Kapanidis, Professor of Biological Physics and Director of the Oxford Martin Program on Antimicrobial Resistance Testing, said, "Antibiotics that stop the growth of bacterial cells also change how cells look under a microscope, and affect cellular structures such as the bacterial chromosome. Our AI-based approach detects such changes reliably and rapidly. Equally, if a cell is resistant, the changes we selected are absent, and this forms the basis for detecting antibiotic resistance."
</p>

<p>
	 
</p>

<p>
	The researchers tested their method on a range of clinical isolates of E. coli, each with varying levels of resistance to the antibiotic ciprofloxacin.
</p>

<p>
	 
</p>

<p>
	The deep-learning models were able to detect antibiotic resistance reliably and at least 10 times faster than established state-of-the art clinical methods considered to be gold standard.
</p>

<p>
	 
</p>

<p>
	The team hopes to continue developing their method so that it becomes faster and more scalable for clinical use, as well as adapting its usage for different types of bacteria and antibiotics.
</p>

<p>
	 
</p>

<p>
	According to the Global Research on Antimicrobial Resistance (GRAM) Project—a partnership involving the University—almost 1.3 million people died in 2019 due to AMR.
</p>

<p>
	 
</p>

<p>
	Current testing methods rely on growing bacterial colonies in the presence of antibiotics. However, such tests are slow, often requiring several days to understand how resistant bacteria are to a range of antibiotics.
</p>

<p>
	 
</p>

<p>
	This can be problematic when patients have potentially life-threatening infections, such as sepsis, requiring urgent treatment. This usually forces doctors to either prescribe specific antibiotics based on their clinical experience or a cocktail of antibiotics known to be effective across multiple bacterial infections.
</p>

<p>
	 
</p>

<p>
	However, if ineffective antibiotics are prescribed the patients' infections may get worse and they will need to be treated with more antibiotics. One potential outcome of this is increased AMR to antibiotics in the community.
</p>

<p>
	 
</p>

<p>
	The researchers say that if developed further, the rapid nature of their method may facilitate targeted antibiotic treatments—helping to decrease treatment times, minimize side effects, and ultimately slow down the rise of AMR.
</p>

<p>
	 
</p>

<p>
	Co-author of the paper Aleksander Zagajewski, doctoral student with the University's Department of Physics, said, "Time is beginning to run out for our antibiotic arsenal; we are hoping our novel diagnostics will pave the way for a new generation of precision treatments for the most sick patients."
</p>

<p>
	 
</p>

<p>
	<strong><a href="https://phys.org/news/2023-11-ai-antibiotic-resistance-minutes.html" rel="external nofollow">Source</a></strong>
</p>
]]></description><guid isPermaLink="false">20202</guid><pubDate>Tue, 21 Nov 2023 15:34:03 +0000</pubDate></item><item><title>OpenAI staff are putting their visas at risk to get Sam Altman back as CEO</title><link>https://nsaneforums.com/news/general-news/openai-staff-are-putting-their-visas-at-risk-to-get-sam-altman-back-as-ceo-r20199/</link><description><![CDATA[<ul>
	<li>
		<strong><span style="font-size:18px;">700 OpenAI employees have signed a letter threatening to quit if Sam Altman isn't reinstated as CEO.</span></strong>
	</li>
</ul>

<p>
	 
</p>

<ul>
	<li>
		<strong><span style="font-size:18px;">Some of them say they are on work-dependent visas, which they could lose if they are forced to quit.</span></strong>
	</li>
</ul>

<p>
	 
</p>

<ul>
	<li>
		<strong><span style="font-size:18px;">It's a sign of how much loyalty Altman has inspired among staff.</span></strong>
	</li>
</ul>

<p>
	<br />
	OpenAI's employees are calling on the company's board to bring back Sam Altman — and some are even willing to put their visas at risk to get him back as CEO.
</p>

<p>
	 
</p>

<p>
	A number of OpenAI employees say they have signed a letter threatening to quit if Sam Altman is not brought back as CEO despite being on work-related visas, meaning they could lose the right to remain in the US should they resign.
</p>

<p>
	 
</p>

<p>
	As of Monday evening, over 700 of OpenAI's 770 employees had signed the letter threatening to quit and join Altman at Microsoft if the AI startup's board does not reinstate him as CEO and resign.
</p>

<p>
	 
</p>

<p>
	That includes senior figures such as CTO Mira Murati and chief scientist Ilya Sutskever — who had a change of heart after initially backing the board coup against Altman.
</p>

<p>
	 
</p>

<p>
	"I am on an H-1B, in the process of getting my green card and relocating my family to the US," said OpenAI technical staffer Reiichiro Nakano in a post on X.
</p>

<p>
	 
</p>

<p>
	"Me and many other colleagues in a similar situation have signed this letter. I do not know what will happen next, but I am confident we will be taken care of. The board should resign," he said.
</p>

<p>
	 
</p>

<p>
	Boris Power, OpenAI's head of applied research, also posted on X that he risked losing his visa should he quit the company.
</p>

<p>
	 
</p>

<p>
	"I'm on a research visa too that I will lose if I resign. These are details — onwards with the mission!" he said.
</p>

<p>
	 
</p>

<p>
	OpenAI's employees have publicly backed Altman to the hilt since he was unexpectedly fired by the company's board on Friday, posting coordinated messages on social media and reportedly refusing to attend an all-hands hosted by new boss Emmett Shear.
</p>

<p>
	 
</p>

<p>
	A number of senior OpenAI employees are already expected to follow Altman and ex-OpenAI president Greg Brockman to Microsoft.
</p>

<p>
	 
</p>

<p>
	Altman has also hinted that workers who choose to resign from OpenAI will be welcomed into the new AI team he is heading up at Microsoft, posting on X that "we are all going to work together some way or other, and I'm so excited."
</p>

<p>
	 
</p>

<p>
	In the letter to the board calling for its resignation, OpenAI's employees said that Microsoft "assured us there are positions for all OpenAI employees" at the company — although sources told Business Insider that these assurances were strictly verbal and not set in stone.
</p>

<p>
	 
</p>

<p>
	But Microsoft boss Satya Nadella said in a conversation with tech journalist Kara Swisher on an episode of her podcast that aired on Monday that it would "definitely have a place for all AI talent."
</p>

<p>
	 
</p>

<p>
	OpenAI did not immediately respond to a request for comment from Business Insider, made outside normal working hours.
</p>

<p>
	 
</p>

<p>
	<strong><a href="https://www.businessinsider.com/openai-staff-risk-visas-if-they-quit-over-sam-altman-2023-11" rel="external nofollow">Source</a></strong>
</p>
]]></description><guid isPermaLink="false">20199</guid><pubDate>Tue, 21 Nov 2023 15:10:00 +0000</pubDate></item><item><title>The State of the Planet in 10 Numbers</title><link>https://nsaneforums.com/news/general-news/the-state-of-the-planet-in-10-numbers-r20196/</link><description><![CDATA[<p>
	<span style="font-size:22px;">Here is a <strong>snapshot of the <span style="color:#c0392b;">warming world, from sea-level rise to fossil fuel subsidies to renewable energy growth</span></strong></span>
</p>

<p>
	 
</p>

<p>
	The COP28 climate summit comes at a critical moment for the planet.
</p>

<p>
	 
</p>

<p>
	A summer that toppled heat records left a trail of disasters around the globe. The world may be just six years away from breaching the Paris Agreement’s temperature target of 1.5 degrees Celsius, setting the stage for much worse calamities to come. And governments are cutting their greenhouse gas pollution far too slowly to head off the problem — and haven’t coughed up the billions of dollars they promised to help poorer countries cope with the damage.
</p>

<p>
	 
</p>

<p>
	This year’s summit, which starts on Nov. 30 in Dubai, will conclude the first assessment of what countries have achieved since signing the Paris accord in 2015.
</p>

<p>
	 
</p>

<p>
	The forgone conclusion: They’ve made some progress. But not enough. The real question is what they do in response.
</p>

<p>
	 
</p>

<p>
	To help understand the stakes, here’s a snapshot of the state of the planet — and global climate efforts — in 10 numbers.
</p>

<p>
	 
</p>

<p>
	<span style="color:#c0392b;"><span style="font-size:22px;"><strong>1.3 DEGREES CELSIUS</strong></span></span>
</p>

<p>
	<br />
	Global warming since the preindustrial era
</p>

<p>
	<br />
	Human-caused greenhouse gas emissions have been driving global temperatures skyward since the 19th century, when the industrial revolution and the mass burning of fossil fuels began to affect the Earth’s climate. The world has already warmed by about 1.3 degrees Celsius, or 2.3 degrees Fahrenheit, and most of that warming has occurred since the 1970s. In the last 50 years, research suggests, global temperatures have risen at their fastest rate in at least 2,000 years.
</p>

<p>
	 
</p>

<p>
	This past October concluded the Earth’s hottest 12-month span on record, a recent analysis found. And 2023 is virtually certain to be the hottest calendar year ever observed. It’s continuing a string of recent record-breakers — the world’s five hottest years on record have all occurred since 2015.
</p>

<p>
	 
</p>

<p>
	Allowing warming to pass 2 degrees Celsius would tip the world into catastrophic changes, scientists have warned, including life-threatening heat extremes, worsening storms and wildfires, crop failures, accelerating sea-level rise and existential threats to some coastal communities and small island nations. Eight years ago in Paris, nearly every nation on Earth agreed to strive to keep temperatures well below that threshold, and under a more ambitious 1.5-degree threshold if at all possible.
</p>

<p>
	 
</p>

<p>
	But with just fractions of a degree to go, that target is swiftly approaching — and many experts say it’s already all but out of reach.
</p>

<p>
	 
</p>

<p>
	<span style="font-size:22px;"><span style="color:#c0392b;"><strong>$4.3 TRILLION</strong></span></span>
</p>

<p>
	<br />
	Global economic losses from climate disasters since 1970
</p>

<p>
	<br />
	Climate-related disasters are worsening as temperatures rise. Heat waves are intensifying, tropical cyclones are strengthening, floods and droughts are growing more severe and wildfires are blazing bigger. Record-setting events struck all over the planet this year, a harbinger of new extremes to come. Scientists say such events will only accelerate as the world warms.
</p>

<p>
	 
</p>

<p>
	Nearly 12,000 weather, climate and water-related disasters struck worldwide over the last five decades, the World Meteorological Organization reports. They’ve caused trillions of dollars in damage, and they’ve killed more than 2 million people.
</p>

<p>
	 
</p>

<p>
	Ninety percent of these deaths have occurred in developing countries. Compared with wealthier nations, these countries have historically contributed little to the greenhouse gas emissions driving global warming — yet they disproportionately suffer the impacts of climate change.
</p>

<p>
	 
</p>

<p>
	<span style="font-size:22px;"><span style="color:#c0392b;"><strong>4.4 MILLIMETERS</strong></span></span>
</p>

<p>
	<br />
	Annual rate of sea-level rise
</p>

<p>
	<br />
	Global sea levels are rapidly rising as the ice sheets melt and the oceans warm and expand. Scientists estimate that they’re now rising by about 4.4 millimeters, or about 0.17 inches, each year — and that rate is accelerating, increasing by about 1 millimeter every decade.
</p>

<p>
	 
</p>

<p>
	Those sound like small numbers. They’re not.
</p>

<p>
	 
</p>

<p>
	The world’s ice sheets and glaciers are losing a whopping 1.2 trillion tons of ice each year. Those losses are also speeding up, accelerating by at least 57 percent since the 1990s. Future sea-level rise mainly depends on future ice melt, which depends on future greenhouse gas emissions. With extreme warming, global sea levels will likely rise as much as 3 feet by the end of this century, enough to swamp many coastal communities, threaten freshwater supplies and submerge some small island nations.
</p>

<p>
	 
</p>

<p>
	Some places are more vulnerable than others.
</p>

<p>
	 
</p>

<p>
	“Low-lying islands in the Pacific are on the frontlines of the fight against sea-level rise,” said NASA sea-level expert Benjamin Hamlington. “In the U.S., the Southeast and Gulf Coasts are experiencing some of the highest rates of sea-level rise in the world and have very high future projections of sea level.”
</p>

<p>
	 
</p>

<p>
	But in the long run, he added, “almost every coastline around the world is going to experience sea-level rise and will feel impacts.”
</p>

<p>
	 
</p>

<p>
	<span style="font-size:22px;"><span style="color:#c0392b;"><strong>LESS THAN SIX YEARS</strong></span></span>
</p>

<p>
	<br />
	When the world could breach the 1.5-degree threshold
</p>

<p>
	<br />
	The world is swiftly running out of time to meet its most ambitious international climate target: keeping global warming below 1.5 degrees Celsius.
</p>

<p>
	 
</p>

<p>
	Humans can emit only another 250 billion metric tons of carbon dioxide and maintain at least even odds of meeting that goal, scientists say.
</p>

<p>
	 
</p>

<p>
	That pollution threshold could arrive in as little as six years.
</p>

<p>
	 
</p>

<p>
	That’s the bottom line from at least two recent studies, one published in June and one in October. Humans are pouring about 40 billion tons of carbon dioxide into the atmosphere each year, with each ton eating into the margin of error.
</p>

<p>
	 
</p>

<p>
	The size of that carbon buffer is smaller than previous estimates have suggested, indicating that time is running out even faster than expected.
</p>

<p>
	 
</p>

<p>
	“While our research shows it is still physically possible for the world to remain below 1.5C, it's difficult to see how that will stay the case for long,” said Robin Lamboll, a scientist at Imperial College London and lead author of the most recent study. “Unfortunately, net-zero dates for this target are rapidly approaching, without any sign that we are meeting them.”
</p>

<p>
	 
</p>

<p>
	<span style="font-size:22px;"><span style="color:#c0392b;"><strong>43 PERCENT</strong></span></span>
</p>

<p>
	<br />
	How much greenhouse gas emissions must fall by 2030 to hit the temperature target
</p>

<p>
	<br />
	The world would have to undergo a stark transformation during this decade to have any hope of meeting the Paris Agreement’s ambitious 1.5-degree cap.
</p>

<p>
	 
</p>

<p>
	In a nutshell, global greenhouse gas emissions have to fall 43 percent by 2030, and 60 percent by 2035, before reaching net-zero by mid-century, according to a U.N. report published in September on the progress the world has made since signing the Paris Agreement. That would give the world a 50 percent chance of limiting global warming to 1.5 degrees.
</p>

<p>
	 
</p>

<p>
	But based on the climate pledges that countries have made to date, greenhouse gas emissions are likely to fall by just 2 percent this decade, according to a U.N. assessment published this month.
</p>

<p>
	 
</p>

<p>
	Governments are “taking baby steps to avert the climate crisis,” U.N. climate chief Simon Stiell said in a statement this month. “This means COP28 must be a clear turning point.”
</p>

<p>
	 
</p>

<p>
	<span style="color:#c0392b;"><span style="font-size:22px;"><strong>$1 TRILLION A YEAR</strong></span></span>
</p>

<p>
	<br />
	Climate funding needs of developing countries
</p>

<p>
	<br />
	In many ways, U.N. climate summits are all about finance. Cutting industries’ carbon pollution, protecting communities from extreme weather, rebuilding after climate disasters — it all costs money. And developing countries, in particular, don’t have enough of it.
</p>

<p>
	 
</p>

<p>
	As financing needs grow, pressure is mounting on richer nations such as the U.S. that have produced the bulk of planet-warming emissions to help developing countries cut their own pollution and adapt to a warmer world. They also face growing calls to pay for the destruction wrought by climate change, known as loss and damage in U.N.-speak.
</p>

<p>
	 
</p>

<p>
	But the flow of money from rich to poor countries has slowed. In October, a pledging conference to replenish the U.N.’s Green Climate Fund raised only $9.3 billion, even less than the $10 billion that countries had promised last time. An overdue promise by developed countries to deliver $100 billion a year by 2020 to help developing countries reduce emissions and adapt to rising temperatures was “likely” met last year, the Organization for Economic Cooperation and Development said this month, while warning that adaptation finance had fallen by 14 percent in 2021.
</p>

<p>
	 
</p>

<p>
	As a result, the gap between what developing countries need and how much money is flowing in their direction is growing. The OECD report said developing countries will need around $1 trillion a year for climate investments by 2025, “rising to roughly $2.4 trillion each year between 2026 and 2030.”
</p>

<p>
	 
</p>

<p>
	<span style="color:#c0392b;"><span style="font-size:22px;"><strong>$7 TRILLION</strong></span></span>
</p>

<p>
	<br />
	Worldwide fossil fuel subsidies in 2022
</p>

<p>
	<br />
	In stark contrast to the trickle of climate finance, fossil fuel subsidies have surged in recent years. In 2022, total spending on subsidies for oil, natural gas and coal reached a record $7 trillion, the International Monetary Fund said in August. That’s $2 trillion more than in 2020.
</p>

<p>
	 
</p>

<p>
	Explicit subsidies — direct government support to reduce energy prices — more than doubled since 2020, to $1.3 trillion. But the majority of subsidies are implicit, representing the fact that governments don’t require fossil fuel companies to pay for the health and environmental damage that their products inflict on society.
</p>

<p>
	 
</p>

<p>
	At the same time, countries continue pumping public and private money into fossil fuel production. This month, a U.N. report found that governments plan to produce more than twice the amount of fossil fuels in 2030 than would be consistent with the 1.5-degree target.
</p>

<p>
	 
</p>

<p>
	<span style="color:#c0392b;"><span style="font-size:22px;"><strong>66,000 SQUARE KILOMETERS</strong></span></span>
</p>

<p>
	<br />
	Gross deforestation worldwide in 2022
</p>

<p>
	<br />
	At the COP26 climate summit two years ago in Glasgow, Scotland, nations committed to halting global deforestation by 2030. A total of 145 countries have signed the Glasgow Forest Declaration, representing more than 90 percent of global forest cover. Yet global action is still falling short of that target. The annual Forest Declaration Assessment, produced by a collection of research and civil society organizations, estimated that the world lost 66,000 square kilometers of forest last year, or about 25,000 square miles — a swath of territory slightly larger than West Virginia or Lithuania. Most of that loss came from tropical forests.
</p>

<p>
	 
</p>

<p>
	Halting deforestation is a critical component of global climate action. The U.N.’s Intergovernmental Panel on Climate Change warns that collective contributions from agriculture, forestry and land use compose as much as 21 percent of global human-caused carbon emissions. Deforestation releases large volumes of carbon dioxide back into the atmosphere, and recent research suggests that carbon losses from tropical forests may have doubled since the early 2000s.
</p>

<p>
	 
</p>

<p>
	<span style="color:#c0392b;"><span style="font-size:22px;"><strong>ALMOST 1 BILLION TONS</strong></span></span>
</p>

<p>
	<br />
	The annual carbon dioxide removal gap
</p>

<p>
	<br />
	Given the world’s slow pace in reducing greenhouse gas pollution, scientists say a second approach is essential for slowing the Earth’s warming — removing carbon dioxide from the atmosphere.
</p>

<p>
	 
</p>

<p>
	The technology for doing this is largely untested at scale, and won’t be cheap.
</p>

<p>
	 
</p>

<p>
	A landmark report on carbon dioxide removals led by the University of Oxford earlier this year found that keeping warming to 2 degrees Celsius or less would require countries to collectively remove an additional 0.96 billion tons of CO2-equivalent a year by 2030.
</p>

<p>
	 
</p>

<p>
	About 2 billion tons are now removed every year, but that is largely achieved through the natural absorption capacity of forests.
</p>

<p>
	 
</p>

<p>
	Removing even more carbon will require countries to massively scale up carbon removal technologies, given the limited capacity of forests to absorb more carbon dioxide.
</p>

<p>
	 
</p>

<p>
	Carbon removal technologies are in the spotlight at COP28, though some countries and companies want to use them to meet net-zero while continuing to burn fossil fuels. Scientists have been clear that carbon removal cannot be a substitute for steep emissions cuts.
</p>

<p>
	 
</p>

<p>
	<span style="color:#c0392b;"><span style="font-size:22px;"><strong>1,000 GIGAWATTS</strong></span></span>
</p>

<p>
	<br />
	Annual growth in renewable power capacity needed to keep 1.5 degrees in reach
</p>

<p>
	<br />
	The shift from fossil fuels to renewables is underway, but the transition is still far too slow to meet the Paris Agreement targets.
</p>

<p>
	 
</p>

<p>
	To keep 1.5 degrees within reach, the International Renewable Energy Agency estimates that the world needs to add 1,000 gigawatts in renewable energy capacity every year through 2030. By comparison, the United States’ entire utility-scale electricity-generation capacity was about 1,160 gigawatts last year, according to the Department of Energy.
</p>

<p>
	 
</p>

<p>
	Last year, countries added about 300 gigawatts, according to the agency’s latest World Energy Transitions Outlook published in June.
</p>

<p>
	 
</p>

<p>
	That shortfall has prompted the EU and the climate summit’s host nation, the United Arab Emirates, to campaign for nations to sign up to a target to triple the world’s renewable capacity by 2030 at COP28, a goal also supported by the U.S. and China.
</p>

<p>
	 
</p>

<p>
	“The transition to clean energy is happening worldwide and it’s unstoppable,” International Energy Agency boss Fatih Birol said last month. “It’s not a question of ‘if’, it’s just a matter of ‘how soon’ — and the sooner the better for all of us.”
</p>

<p>
	 
</p>

<p>
	<em>This story is part of POLITICO's COP28 Special Report.</em>
</p>

<p>
	 
</p>

<p>
	<em>Reprinted from E&amp;E News with permission from POLITICO, LLC. Copyright 2023. E&amp;E News provides essential news for energy and environment professionals.</em>
</p>

<p>
	 
</p>

<p>
	<strong><a href="https://www.scientificamerican.com/article/the-state-of-the-planet-in-10-numbers/" rel="external nofollow">Source</a></strong>
</p>
]]></description><guid isPermaLink="false">20196</guid><pubDate>Tue, 21 Nov 2023 14:49:25 +0000</pubDate></item><item><title>Younger people are more vulnerable to the damaging effects of high blood cholesterol and hypertension, study shows</title><link>https://nsaneforums.com/news/general-news/younger-people-are-more-vulnerable-to-the-damaging-effects-of-high-blood-cholesterol-and-hypertension-study-shows-r20193/</link><description><![CDATA[<p>
	Young people may be more susceptible to the effects of the risk factors for developing atherosclerosis. According to a study carried out at the Centro Nacional de Investigaciones Cardiovasculares (CNIC), younger people are especially vulnerable to the damaging effects of elevated blood cholesterol and hypertension, two of the major modifiable cardiovascular risk factors.
</p>

<p>
	 
</p>

<p>
	These findings, published in the Journal of the American College of Cardiology, underline the need to implement aggressive control of cardiovascular risk factors at younger ages, requiring a change in primary prevention strategies to include "surveillance of subclinical atherosclerosis and early cardiovascular risk factor control."
</p>

<p>
	 
</p>

<p>
	The study was co-led by Dr. Valentín Fuster, CNIC General Director and Physician-in-Chief at Mount Sinai Medical Center in New York, and Dr. Borja Ibáñez, CNIC Scientific Director, a cardiologist at Hospital Universitario Fundación Jiménez Díaz, and a member of the CIBERCV cardiovascular research network in Spain.
</p>

<p>
	 
</p>

<p>
	Subclinical atherosclerosis often progresses in middle-aged individuals, especially if LDL-cholesterol levels and blood pressure are even mildly or moderately elevated. Medical professionals and the general public need to be aware that atherosclerosis progression can be stopped if risk factors are managed aggressively from an early age.
</p>

<p>
	 
</p>

<p>
	"Screening for subclinical atherosclerosis from an early age together with aggressive risk-factor control could help to reduce the global burden of cardiovascular disease," said Dr. Fuster.
</p>

<p>
	 
</p>

<p>
	Dr. Ibáñez explained that "in this study, we show that moderate increases in blood pressure and cholesterol have a much more pronounced impact on atherosclerosis progression in younger people."
</p>

<p>
	 
</p>

<p style="text-align:center;">
	<img alt="younger-people-are-mor.jpg" class="ipsImage" data-ratio="73.47" height="477" width="720" src="https://scx1.b-cdn.net/csz/news/800a/2023/younger-people-are-mor.jpg" />
</p>

<p style="text-align:center;">
	<span style="font-size:12px;"><em>3-dimensional ultrasound reconstruction of a carotid artery in an apparently healthy PESA-CNIC-Santander study participant. The upper image shows the situation at the time of the first imaging study, when no atherosclerotic plaques were detected. The lower image shows the same artery six years later, when several plaques were detected. Credit: CNIC</em></span>
</p>

<p style="text-align:center;">
	 
</p>

<p>
	Very few studies have investigated the progression of silent atherosclerosis in people who are completely free of symptoms, whether they are young or in apparently healthy middle age, and how this disease progresses throughout life.
</p>

<p>
	 
</p>

<p>
	The PESA-CNIC-Santander study (Progression of Early Subclinical Atherosclerosis) was launched in 2009 and is a close collaboration between the CNIC and Santander Bank.
</p>

<p>
	 
</p>

<p>
	More than 4,000 apparently healthy middle-aged Santander Bank employees in Madrid volunteered to undergo an exhaustive, noninvasive analysis of the carotid, femoral, and coronary arteries and the aorta. Participants also provided blood samples for advanced genomic, proteomic, and metabolomic analysis.
</p>

<p>
	<br />
	"The PESA study has already made important contributions to our understanding of cardiovascular disease and is considered the most advanced study of its kind in the field," said Dr. Fuster.
</p>

<p>
	 
</p>

<p>
	The current findings have important implications for cardiovascular prevention and personalized medicine. The study shows that the control of risk factors (principally elevated cholesterol and hypertension) should begin early in life, when the arteries are more vulnerable to the effects of these risk factors.
</p>

<p>
	 
</p>

<p>
	Dr. Borja Ibáñez said, "These results point the way to personalized approaches that use imaging technology to monitor the presence and progression of silent atherosclerosis and guide the intensity of risk-factor control."
</p>

<p>
	 
</p>

<p>
	Cardiologist Guiomar Mendieta, the first author of the study, added that "the other key finding of this study is that atherosclerosis, previously believed to be irreversible, can disappear if risk factors are controlled from an early stage."
</p>

<p>
	 
</p>

<p>
	"These findings are the outcome of the exhaustive collection of imaging and biochemical data over six years, combined with an innovative statistical analysis," explained Dr. Mendieta, who joined the CNIC through the CARDIOJOVEN SEC-CNIC training program, a joint initiative of the CNIC and the Spanish Society of Cardiology.
</p>

<p>
	 
</p>

<p>
	<strong><a href="https://medicalxpress.com/news/2023-11-younger-people-vulnerable-effects-high.html" rel="external nofollow">Source</a></strong>
</p>
]]></description><guid isPermaLink="false">20193</guid><pubDate>Tue, 21 Nov 2023 14:17:49 +0000</pubDate></item><item><title>Is Novavax, the latecomer COVID vaccine, worth the wait?</title><link>https://nsaneforums.com/news/general-news/is-novavax-the-latecomer-covid-vaccine-worth-the-wait-r20192/</link><description><![CDATA[<p>
	Erin Kissane, a co-founder of the COVID Tracking Project, rolled up her sleeve for the Novavax COVID-19 vaccine in mid-October soon after it was finally recommended in the United States. Like many people with autoimmune diseases, she wants to protect herself from a potentially devastating COVID infection.
</p>

<p>
	 
</p>

<p>
	Kissane's autoimmune arthritis seems to make her susceptible to unusual vaccine side effects. After getting an mRNA booster last year, her joints ached so painfully that her doctor prescribed steroids to dampen the inflammation. She still considers the mRNA vaccines "miraculous," knowing COVID could be far worse than temporary aches.
</p>

<p>
	 
</p>

<p>
	Nonetheless, when the pain subsided, she pored through studies on Novavax's shot, a vaccine that is based on proteins rather than mRNA and has been used since early 2022 in other countries. Data from the United Kingdom found that people more frequently reported temporary reactions—like low fevers, fatigue, and pain—as their immune system ramped up in the days following booster vaccination with Moderna's mRNA vaccine versus the one by Pfizer. And those boosted with Novavax's had fewer complaints than either of those. That finding was corroborated in an analysis of international data published last year.
</p>

<p>
	 
</p>

<p>
	Such studies have driven people with long COVID and chronic fatigue syndrome (also known as myalgic encephalomyelitis, or ME/CFS) to seek out Novavax, too, since the FDA and the Centers for Disease Control and Prevention greenlighted Novavax's vaccine—updated to protect against recent omicron coronavirus variants—about three weeks after recommending updated mRNA vaccines in September.
</p>

<p>
	 
</p>

<p>
	Waiting paid off for Kissane, whose arm was briefly sore. "It was a dramatically different experience for me," she said. "I hope that plays out for others."
</p>

<p>
	 
</p>

<p>
	Another group who waited on Novavax are biologists who geek out over its technology. When asked why he opted for Novavax, Florian Krammer, a virologist at the Icahn School of Medicine at Mount Sinai, replied on X, formerly known as Twitter: "Because I am [a] vaccine nerd, I like insect cell produced vaccines."
</p>

<p>
	 
</p>

<p>
	Whereas mRNA vaccines direct the body to produce spike proteins from the coronavirus SARS-CoV-2, which then train a person's immune system to recognize and fight the virus, Novavax simply injects the proteins. These proteins are grown within moth cells in a laboratory, while other protein-based shots use cells from mammals. And Novavax has said that a special ingredient derived from the bark of Chilean soapbark trees enhances the vaccine's power.
</p>

<p>
	<br />
	Research suggests that the Novavax vaccine is about as safe and effective as the mRNA shots. Its main disadvantage is arriving late to the scene.
</p>

<p>
	 
</p>

<p>
	Vaccine uptake has plummeted since the first shots became widely available in 2021. Nearly 70% of people got the primary vaccines, compared with fewer than 20% opting for the mRNA COVID boosters released last year. Numbers have dwindled further: As of Oct. 17, only 5% of people in the United States had gotten the latest COVID vaccines, according to the Department of Health and Human Services.
</p>

<p>
	 
</p>

<p>
	Daniel Park, an epidemiologist at George Washington University, said low rates might improve if people who felt lousy after their last mRNA shots gave Novavax a try. It protects against severe illness, but researchers struggle to specify just how effective this and other vaccines are, at this point, because studies have gotten tricky to conduct: New coronavirus variants continuously emerge, and people have fluctuating levels of immunity from previous vaccines and infections.
</p>

<p>
	 
</p>

<p>
	Still, a recent study in Italy suggests that Novavax is comparable to mRNA vaccines. It remained more than 50% effective at preventing symptomatic COVID four months after vaccination. Some data suggests that mixing and matching different types of vaccines confers stronger protection—although other studies have found no benefit.
</p>

<p>
	 
</p>

<p>
	Given all this, Park held out for the Novavax vaccine on account of its potentially milder side effects. "Between a demanding full-time job and two young kids at home, I wanted to stay operational," he said. His arm was sore, but he didn't have the 24-hour malaise accompanying his last mRNA shot.
</p>

<p>
	 
</p>

<p>
	Most people don't strike a fever after mRNA shots. Even when they do, it is brief and therefore far less detrimental than many cases of COVID. In fact, most reactions are so minor that they're hard to interpret. During clinical trials on mRNA vaccines, for example, up to a third of people in the placebo group reported fatigue and headaches after injection.
</p>

<p>
	 
</p>

<p>
	People with ME/CFS and long COVID—a potentially debilitating condition that persists months after a COVID infection—have responded to COVID vaccinations in a wide variety of ways. Most participants with long COVID in an 83-person Canadian study said their levels of fatigue, concentration, and shortness of breath improved following vaccination. Inflammatory proteins that have been linked to long COVID dropped as well.
</p>

<p>
	 
</p>

<p>
	However, larger studies have yet to corroborate the hopeful finding. Jennifer Curtin, a doctor who co-founded a telehealth clinic focused on long COVID and ME/CFS, called RTHM, said vaccines seem to temporarily aggravate some patients' conditions. To learn how Novavax compares, she posted polls on X in late October asking if people with long COVID or ME/CFS felt that their symptoms worsened, improved, or stayed the same after Novavax. Most replied: unchanged.
</p>

<p>
	 
</p>

<p>
	"It's not scientific, but we need to figure it out since these folks don't want to get COVID," Curtin said. "My patients are all wondering about what vaccine to get right now."
</p>

<p>
	 
</p>

<p>
	Adding to the uncertainty, the rollout of Novavax and mRNA vaccines has been bumpy as pharmacies struggle to predict demand and insurance companies figure out how to reimburse providers for the shots. Unlike previous vaccine offerings, these options are no longer fully covered by the federal government. A testament to this season's struggle to get vaccinated is that at least one do-gooder has created an online tool to find open appointments for Novavax.
</p>

<p>
	 
</p>

<p>
	Buoyed by anecdotes of relief from others with long COVID, Hayley Brown, a researcher at the Center for Economic and Policy Research who has the condition, opted for Novavax recently. Unfortunately, her symptoms have flared. She said a temporary discomfort will still be preferable to risking another infection. "As someone with long COVID, the idea of getting COVID again is terrifying."
</p>

<p>
	 
</p>

<p>
	<strong><a href="https://medicalxpress.com/news/2023-11-novavax-latecomer-covid-vaccine-worth.html" rel="external nofollow">Source</a></strong>
</p>
]]></description><guid isPermaLink="false">20192</guid><pubDate>Tue, 21 Nov 2023 14:14:20 +0000</pubDate></item><item><title>The Average Human Body Temperature Is Not 98.6 Degrees</title><link>https://nsaneforums.com/news/general-news/the-average-human-body-temperature-is-not-986-degrees-r20190/</link><description><![CDATA[<p>
	<span style="font-size:22px;">Here’s why we appear to be getting cooler, and what that could mean when it comes to fevers.</span>
</p>

<p>
	 
</p>

<p>
	Over the past few decades, evidence has been mounting that the average human body temperature is not really 98.6 degrees Fahrenheit. Instead, most people’s baseline is a little bit cooler.
</p>

<p>
	 
</p>

<p>
	The standard of 98.6 was established over 150 years ago by the German physician Dr. Carl Wunderlich, who reportedly took over a million measurements from 25,000 people. Temperatures ranged from 97.2 to 99.5, and the average was 98.6. Dr. Wunderlich also established 100.4 degrees as “probably febrile.”
</p>

<p>
	 
</p>

<p>
	However, a study published in September that evaluated the temperatures of more than 126,000 people between 2008 and 2017 found that the <span style="color:#c0392b;"><strong>average is closer to 97.9 degrees</strong></span>. Other modern-day studies have reported similar numbers.
</p>

<p>
	 
</p>

<p>
	Experts who study body temperature have differing opinions about why we appear to have gotten cooler over time, and whether that matters when it comes to evaluating fevers and diagnosing infections.
</p>

<p>
	 
</p>

<p>
	<span style="font-size:22px;"><strong>Why 98.6 is off base</strong></span>
</p>

<p>
	<br />
	Some researchers say it could just be a measurement issue — Dr. Wunderlich might have assessed temperatures using different methods and standards than we do today. One account reports that he used a foot-long thermometer that went into a person’s armpit.
</p>

<p>
	 
</p>

<p>
	Many factors can influence a body temperature reading, the most significant being where you take it: Rectal temperatures are reliably higher than oral temperatures, which are reliably higher than readings taken from the skin. Body temperature is also influenced by the time of day, whether it’s hot or cold outside and even whether the person just had something to eat or drink. Readings can also vary from thermometer to thermometer, depending on how they are calibrated.
</p>

<p>
	 
</p>

<p>
	Comparing historical and modern-day data gives you “a hodgepodge mixture of observations,” said Dr. Philip Mackowiak, an emeritus professor of medicine at the University of Maryland School of Medicine, who, in a 1992 paper, was one of the first researchers to scrutinize Dr. Wunderlich’s conclusions. The drop in temperature may be “a true phenomenon,” he added, “but there’s no way of knowing because the data are so varied.”
</p>

<p>
	 
</p>

<p>
	Other experts think humans really have gotten cooler over the past 150 years. Our temperatures may have declined because “we are so lucky to be healthier than we used to be,” said Dr. Julie Parsonnet, a professor of medicine and of epidemiology and population health at Stanford Medicine, who led the September study on body temperature.
</p>

<p>
	 
</p>

<p>
	For instance, it could be that many people in Dr. Wunderlich’s sample had slightly elevated temperatures from low-grade inflammation. Better treatment of infections, improved dental care and the development and use of medications like statins and nonsteroidal anti-inflammatory drugs may all have contributed to a decline in inflammation since the 19th century, which in turn lowered people’s average temperature, Dr. Parsonnet said.
</p>

<p>
	 
</p>

<p>
	Regardless of the reason for the shift, the experts interviewed for this article agreed that 98.6 degrees should no longer be considered the universal human standard. But instead of shifting the average temperature down a degree or so, it should be given as a range, said Dr. Waleed Javaid, a professor of medicine at the Icahn School of Medicine at Mount Sinai, who published a 2019 review paper on body temperature.
</p>

<p>
	 
</p>

<p>
	A range would account for the natural variability in temperature that occurs across gender and age — women tend to run slightly warmer than men, and older adults run cooler than younger people. Additionally, everyone’s body temperature fluctuates throughout the day — it is typically lowest in the morning and highest in the late afternoon.
</p>

<p>
	 
</p>

<p>
	“Like there’s a range for heart rate, there’s a range for blood pressure,” temperature also has a range, Dr. Javaid said.
</p>

<p>
	 
</p>

<p>
	<span style="font-size:22px;"><strong>What counts as a <span style="color:#c0392b;">fever</span></strong></span>
</p>

<p>
	<br />
	If we redefine “normal” human body temperature, then what registers as abnormal?
</p>

<p>
	 
</p>

<p>
	The Centers for Disease Control and Prevention says that temperatures of 100.4 and above qualify as a fever — a roughly two-degree increase from 98.6. But if the average human temperature is lower, it’s possible that the temperature indicating a fever could be lower, as well.
</p>

<p>
	 
</p>

<p>
	Dr. Parsonnet would like to see a personalized approach to fever, where doctors compare each patient against their own baseline so that low-grade fevers aren’t missed in people who run cooler. The mission is somewhat personal for her: Dr. Parsonnet’s mother-in-law has a heart infection that went undiagnosed for months because she never registered as being feverish. Her temperature was around 98.6, but, Dr. Parsonnet said, that “was not normal for her, for her age.”
</p>

<p>
	 
</p>

<p>
	To Dr. Mackowiak, this individualized approach would be ideal, but it’s unrealistic given the time constraints doctors and nurses are already under.
</p>

<p>
	He and Dr. Javaid are also not as concerned about the possibility of low-grade fevers being missed because of the current temperature standards.
</p>

<p>
	Instead of changing the definition of a fever, they said the solution may be to place less of an emphasis on fever overall, and to think of it as one sign among many — something that many doctors already do. (This advice applies to parents, as well as physicians.)
</p>

<p>
	 
</p>

<p>
	If a temperature is sky-high, that’s important information, Dr. Javaid said, but “the temperature is not the only thing one should look at.”
</p>

<p>
	 
</p>

<p>
	<strong><a href="https://www.nytimes.com/2023/10/12/well/live/fever-normal-body-temperature.html" rel="external nofollow">Source</a></strong>
</p>
]]></description><guid isPermaLink="false">20190</guid><pubDate>Tue, 21 Nov 2023 14:04:36 +0000</pubDate></item><item><title>Brazil records its hottest ever temperature</title><link>https://nsaneforums.com/news/general-news/brazil-records-its-hottest-ever-temperature-r20189/</link><description><![CDATA[<p>
	Brazil has recorded its <span style="color:#c0392b;"><strong>hottest ever temperature - 44.8C (112.6F)</strong></span> - as parts of the country endure a stifling heatwave.
</p>

<p>
	 
</p>

<p>
	The record was hit on Sunday in the town of Araçuaí, in Brazil's south-eastern state of Minas Gerais.
</p>

<p>
	 
</p>

<p>
	The unprecedented weather has been attributed to the El Niño phenomenon and climate change.
</p>

<p>
	 
</p>

<p>
	Forecasters say some of the heat is likely to ease this week.
</p>

<p>
	 
</p>

<p>
	According to the National Institute of Meteorology (Inmet), only three state capitals will see temperatures approaching 40C, CNN Brasil reported.
</p>

<p>
	The government agency said Araçuaí's high of 44.8C had beaten the country's previous record of <span style="color:#c0392b;"><strong>44.7C, measured in 2005</strong></span>.
</p>

<p>
	 
</p>

<p>
	The heat has seen red alerts issued across the country, a month before the beginning of summer in the southern hemisphere. Brazil's energy consumption has soared to record levels as people try to keep themselves cool.
</p>

<p>
	 
</p>

<p>
	The high temperatures led to Taylor Swift cancelling one of her concerts in Rio de Janeiro after a fan fell ill and died before a show on Friday.
</p>

<p>
	According to the organisers, 23-year-old Ana Clara Benevides Machado had sought help at the stadium after feeling unwell. She was transferred to hospital but died one hour later.
</p>

<p>
	 
</p>

<p>
	Official research released two weeks ago showed that the average temperature in the country had been above the historical average from July to October.
</p>

<p>
	 
</p>

<p>
	Extreme weather is becoming more frequent and more intense in many places around the world because of climate change.
</p>

<p>
	 
</p>

<p>
	According to scientists, heatwaves are becoming longer and more intense in many places and this is expected to continue whilst humans keep releasing planet-warming greenhouse gases.
</p>

<p>
	 
</p>

<p>
	Meanwhile, the Earth is currently in an El Niño weather phase, during which time global temperatures typically increase.
</p>

<p>
	 
</p>

<p>
	<strong><a href="https://www.bbc.com/news/world-latin-america-67482423" rel="external nofollow">Source</a></strong>
</p>
]]></description><guid isPermaLink="false">20189</guid><pubDate>Tue, 21 Nov 2023 14:00:11 +0000</pubDate></item><item><title>Study yields new insights into why some people get headaches from red wine</title><link>https://nsaneforums.com/news/general-news/study-yields-new-insights-into-why-some-people-get-headaches-from-red-wine-r20178/</link><description><![CDATA[<h3>
	Scientists have identified a flavonol called quercetin as the most likely culprit.
</h3>

<div class="article-content post-page" itemprop="articleBody">
	
	<p>
		As the holiday season kicks off this week, many will be making a consequential choice at dinner: red wine or white wine? And if your choice is red, will you be risking a headache? The fact that red wine can sometimes cause headaches in certain individuals (especially those prone to migraines) is common knowledge—so much so that the phenomenon ("RWH") even has its <a href="https://en.wikipedia.org/wiki/Red_wine_headache" rel="external nofollow">own Wikipedia page</a>. The Roman encyclopedist <a href="https://en.wikipedia.org/wiki/Aulus_Cornelius_Celsus" rel="external nofollow">Celsus</a> wrote in his treatise <em><a href="https://en.wikipedia.org/wiki/De_Medicina" rel="external nofollow">De Medicina</a></em> about the pain felt after drinking wine, while six centuries later, <a href="https://en.wikipedia.org/wiki/Paul_of_Aegina" rel="external nofollow">Paul of Aegina</a> mentioned that drinking wine could trigger a headache.
	</p>

	<p>
		 
	</p>

	<p>
		But the science to date is largely unclear regarding which components of red wine are responsible, as well as the mechanisms behind the phenomenon. A team of California scientists has narrowed down the likely culprits to a flavonol called <a href="https://en.wikipedia.org/wiki/Quercetin" rel="external nofollow">quercetin</a>, according to a <a href="https://www.nature.com/articles/s41598-023-46203-y#:~:text=Consumption%20of%20red%20wine%20has,of%20headaches%20in%20susceptible%20subjects." rel="external nofollow">new paper</a> published in the journal Scientific Reports, although they have yet to run experiments with participants prone to RWH to test their hypothesis.
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		It's a knotty issue because of the complexities of both wine and human genetics/physiology. Wine is basically water and alcohol, along with acids, dissolved sugars, and other compounds that lend colour and flavor. For instance, the tannins in wine are polyphenolic compounds responsible for much of the bitterness and astringency in a given wine; they're derived from the skins and stems of the grapes, or as a result of aging in oak barrels.
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		Red wines typically have more amines, sulfites, flavonoids, and tannins, particularly a phenolic compound with antioxidant properties called <a href="https://en.wikipedia.org/wiki/Resveratrol" rel="external nofollow">resveratrol</a>, also found in grape skins and leaves. That's because red wines are typically produced by soaking the grape skins in the mash (maceration), while producing white wines involves immediately draining the juice away from the grape skins. The grape skins also contain anthocyanins, which give the wine its red hue.
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		Drink enough alcohol of any variety and you'll probably get a hangover that involves a headache and at least some nausea. What's unusual about RWH is that even small to moderate amounts of red wine can induce a headache. It's common these days to blame <a href="https://en.wikipedia.org/wiki/Sulfite" rel="external nofollow">sulfites</a>, a preservative that is a natural byproduct of fermentation, but white wine and many other foods also contain sulfites. In fact, white wine often contains more sulfites than red wine. There is a small percentage of the population that is allergic to sulfites, but they typically get hives and have trouble breathing rather than developing a headache.
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		Then there are biogenic amines, another fermentation byproduct that contains things like histamine and tyramine, both of which have been linked to headaches. Genetics is a factor here; some people just can't metabolize histamine very effectively, for instance, because they don't produce enough of the enzyme responsible for breaking it down in the small intestine. And alcohol inhibits that enzyme to begin with, resulting in higher histamine blood levels. This can dilate blood vessels, causing a headache. Those amines are also present in aged cheeses, cured charcuterie, and dried fruits—all of which are typically consumed with red wine, exaggerating the effects even more. However, at least <a href="https://www.jacionline.org/article/S0091-6749(01)01097-1/fulltext" rel="external nofollow">one study</a> found no correlation between histamine and RWH, although the sample size was very small.
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		Tannins could play a role in RWH, since they can trigger the release of neurotransmitters associated with pain, along with phenolic flavonoids. This might explain why red wines are not equally associated with inducing headaches. A <a href="https://headachejournal.onlinelibrary.wiley.com/doi/10.1111/head.12365" rel="external nofollow">2014 study</a> involved 28 subjects drinking four half-bottles of Cabernet Sauvignon red wines: two from the Bordeaux region in France and two from South America. The Bordeaux wines caused headaches in 60 percent of the subjects, compared to 40 percent of the South American wines. The authors suggested that the Bordeaux wines contain higher concentrations of tannins and phenolic flavonoids for better flavors and aging potential, whereas the South American wines are meant to be consumed soon after their release.
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		The authors of this latest study decided to focus on the phenolic compounds in hopes of uncovering a likely mechanism for triggering headaches. It is already known that people with a certain dysfunctional genetic variant (ALDH2), the enzyme that metabolizes acetaldehyde (a well-known toxin), often <a href="https://en.wikipedia.org/wiki/Alcohol_flush_reaction" rel="external nofollow">become flushed</a> or get headaches when consuming alcohol. So, the authors ran a series of enzymatic assays to determine how much different red wine flavonoids inhibited ALDH2.
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		They found that quercetin—specifically, a metabolite called quercetin-3-glucuronide—inhibits the ALDH2 enzyme and elevates the levels of acetaldehyde in the blood. Like resveratrol, quercetin is an antioxidant that is available in supplement form, but apparently it doesn't play well with alcohol. “When it gets in your bloodstream, your body converts it to a different form called quercetin glucuronide,” <a href="https://www.ucdavis.edu/health/news/why-do-some-people-get-headaches-drinking-red-wine" rel="external nofollow">said coauthor Andrew Waterhouse</a>, a wine chemist and professor emeritus at the University of California, Davis, Department of Viticulture and Enology. “In that form, it blocks the metabolism of alcohol.”
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		Different red wines will contain different levels of this flavonol since grapes produce it in response to sunlight. So Napa Valley Cabernets, for instance, will have more quercetin since the grapes are grown with clusters exposed to the sun. The degree of skin contact during fermentation, the fining process, and aging are other factors that influence levels of quercetin in red wine. The next step is to select wines with both low and high levels of quercetin and test them in a small human clinical trial.
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		“We postulate that when susceptible people consume wine with even modest amounts of quercetin, they develop headaches, particularly if they have a preexisting migraine or another primary headache condition,” <a href="https://www.ucdavis.edu/health/news/why-do-some-people-get-headaches-drinking-red-wine" rel="external nofollow">said co-author Morris Levin</a>, a neurologist and director of the Headache Center at the University of California, San Francisco. “We think we are finally on the right track toward explaining this millennia-old mystery.”
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		Scientific Reports, 2023. DOI: <a href="http://dx.doi.org/10.1038/s41598-023-46203-y" rel="external nofollow">10.1038/s41598-023-46203-y</a>  (<a href="http://arstechnica.com/science/news/2010/03/dois-and-their-discontents-1.ars" rel="external nofollow">About DOIs</a>).
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	<a href="https://arstechnica.com/science/2023/11/study-yields-new-insights-into-why-some-people-get-headaches-from-red-wine/" rel="external nofollow">Source</a>
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