IT

Razer Debuts Its Lightest Gaming Mouse Ever (engadget.com) 36

Razer announced its lightest gaming mouse today, the Viper Mini Signature Edition. From a report: It only weighs 49g, making it 16 percent lighter than the company's Viper V2 Pro and one of the most lightweight mice we've seen from a large company. The mouse uses a magnesium alloy exoskeleton with a semi-hollow interior (bearing a slight resemblance to the SteelSeries Aerox 3 Wireless). "We wanted to push beyond the traditional honeycomb design, and this required a material with an outstanding strength-to-weight ratio," said Razer's Head of Industrial Design, Charlie Bolton. "After evaluating plastics, carbon fiber and even titanium, we ultimately chose magnesium alloy for its exceptional properties." Razer says the mouse uses its fastest wireless tech and will be among its best-performing wireless mice. Price: $280.
Portables (Apple)

The Galaxy Book3 Ultra Is Samsung's Shot At the MacBook Pro (theverge.com) 112

At the Samsung Galaxy Unpacked 2023 event today, Samsung announced the Galaxy Book3 Ultra, a 16-inch workstation laptop with a 120Hz OLED screen, an H-Series Core i7 or Core i9, and an RTX 4050 or 4070 GPU. "Samsung makes a number of Galaxy Book models, but this is the first one of the past few years that has really targeted the deep-pocketed professional user -- that is, the core audience for Apple's high-powered and wildly expensive MacBook Pro 16," reports The Verge. "It'll start at $2,399.99 ($100 cheaper than the base MacBook Pro 16), with a release date still to be announced." From the report: Like its siblings in the Galaxy Book3 line, a big draw of this workstation will be its screen. It's got a 2880 x 1800 120Hz 16:10 OLED display (a welcome change from the 16:9 panels that adorned last year's Galaxy Book2) rated for 400 nits of brightness [...]. Elsewhere, using the device felt pretty similar to using any number of other Samsung Galaxy Books, with a satisfyingly clicky keyboard, a smooth finish, a high-quality build, and a compact chassis. The Ultra is 0.65 inches thick and 3.9 pounds, which is slightly thinner and close to a pound lighter than the 16-inch MacBook Pro that Apple just released [...].

I was able to use a number of Samsung's continuity features, including Second Screen (which allows you to easily use a Galaxy Tab as a second monitor) and Quick Share (which allows you to quickly transfer images and other files between Samsung devices). For Samsung enthusiasts, those seem like handy features that aren't too much of a hassle to set up. The one feature I had issues with was the touchpad -- it registered some of my two-finger clicks as one-finger clicks and wasn't quite picking up all of my scrolls. The units in Samsung's demo area were preproduction devices, so I hope this is a kink Samsung can iron out before the final release.

Unfortunately, we don't yet know how it will stack up when it comes to battery life. The M2 generation of MacBooks is very strong on that front -- and given that the Galaxy Book3 Ultra is running a high-resolution screen, a power-hungry H-series processor, and a very power-hungry RTX GPU, I'm a little bit nervous about that. If Samsung can pull off a device that lasts nearly as long as Apple's do, given those factors, hats off to them.
Further reading:
The Samsung Galaxy S23 Ultra Is a Minor Update To a Spec Monster
Samsung, Google and Qualcomm Team Up To Build a New Mixed-Reality Platform
Science

Nuclear Reactor Mystery Solved, With No Need For New Particles (science.org) 33

sciencehabit shares a report from Science Magazine: A physics mystery has come to an end, with a resolution about as shocking as "the butler did it." For a decade, physicists have pondered why nuclear reactors pump out fewer particles called neutrinos than predicted. Some suggested the elusive bits of matter might be morphing into weirder, undetectable "sterile" neutrinos. Instead, new results pin down what other experiments had suggested: that theorists overestimated how many neutrinos a reactor should produce. [...]

In a reactor's core, uranium and plutonium nuclei split in a chain reaction, and the antineutrinos come from the radioactive "beta decay" of the lighter nuclei left behind. In such decay, a neutron in a nucleus changes into a proton while emitting an electron and an electron antineutrino. To predict the total flux of antineutrinos, physicists had to account for the amounts and decays of myriad different nuclei. That accounting pointed to a shortfall, but in 2017, physicists from the Daya Bay Reactor Neutrino Experiment in China called it into question. They studied antineutrinos from six commercial reactors, burning fuel with 4% uranium-235 atoms, which can sustain a chain reaction, and 96% uranium-238 atoms, which can't. As the uranium-235 is consumed, neutrons from its fission convert uranium-238 into plutonium-239, which also sustains a chain reaction. Daya Bay physicists found the antineutrino deficit shrank as the amount of uranium-235 fell, suggesting theorists had overestimated the flux of antineutrinos originating from uranium-235.

Now, physicists working at a small research reactor in France have confirmed that suspicion. The reactor at the Laue-Langevin Institute (ILL) produces copious neutrons for studies of materials. It also uses fuel containing 93% uranium-235. So, by studying the antineutrinos from it, researchers working with a neutrino detector called STEREO could measure the flux of antineutrinos from uranium-235 alone. The detector consists of six identical oil-filled segments lined up like teeth and spanning a distance of 9 to 11 meters from the reactor's core. Rarely, a proton in the oil will absorb an electron antineutrino to turn into a neutron while ejecting a positron -- sort of the reverse of beta decay. As the positron streaks through the oil, it produces light in proportion to the energy of the original neutrino. STEREO researchers showed the spectrum of energies of electron antineutrinos remained the same as distance from the core increased. That observation clashes with the idea that some are morphing into sterile neutrinos, because lower energy neutrinos should morph faster than higher energy ones, changing the spectrum as the neutrinos advance. STEREO researchers also showed the total flux of antineutrinos from uranium-235 was lower than the one used in theorists' models, as they report today in Nature.
Taken together, the observations put an end to the reactor antineutrino deficit as evidence for a 1-eV sterile neutrino, says David Lhuillier, a neutrino physicist at France's Atomic Energy Commission and spokesperson for the 26-member STEREO team. "Can it be explained by a sterile neutrino of mass around 1 eV? The answer is no."

Other experiments -- such as one called PROSPECT at Oak Ridge National Laboratory -- had reached similar conclusions, Lhuillier notes.
IT

Raspberry Pi Launches Higher Resolution Camera Module, Now With Autofocus (theverge.com) 38

Raspberry Pi is launching a new camera module for use with its diminutive DIY computers -- the Camera Module 3. Its upgraded Sony IMX708 sensor is higher resolution, but perhaps more important is that the new module supports high dynamic range photography and autofocus. Alongside it, Raspberry Pi is also releasing a new camera board for use with M12-mount lenses. From a report: Combined, the new features mean the Camera Module 3 should be able to take more detailed photographs (especially in low light), and can focus on objects as little as 5cm away. The autofocus uses a Phase Detection Autofocus (PDAF) system, with Contrast Detection Autofocus used as a backup. In contrast, previous versions of the camera module had fixed-focus lenses, which Raspberry Pi CEO Eben Upton writes were "optimized to focus at infinity" and could only take a "reasonably sharp image" of objects around a meter away.

The new module's sensor has a resolution of 11.9 megapixels (compared to 8.1 megapixels for the last version), and has a higher horizontal resolution that should allow it to film HD video. HDR support means the Camera Module 3 can take several exposures of the same scene, and combine them so that both darker and lighter parts of an image are properly exposed (at the expense of some resolution) -- a trick commonly performed by just about every smartphone. Prices start at $25 for the Camera Module 3 with a standard field-of-view, while the ultra-wide angle version with a 102-degree field of view is $35.

Intel

The Intel P-Series Was a Step Back 48

An anonymous reader shares a report: I reviewed a number of laptops in 2022 across consumer, workstation, gaming, business, Chromebook, and everywhere else. I touched all of the major brands. But I had a particular focus on ultraportables this year -- that is, thin and light devices that people buy to use, say, on their couch at home -- because, with Apple's MacBooks in such a dominant position, many eyes have been on their competitors on the Windows side. For many of these models, I found myself writing the same review over and over and over. They were generally good. They performed well. But their battery life was bad.

What these laptops had in common is that they were all powered by the Intel P-series. Without getting too into the weeds here, Intel processors have, in the past, included H-series processors -- powerful chips that you'll find in gaming laptops and workstations -- and U-series processors for thinner, lighter devices. (There was also a G-series, which was this whole other thing, for a couple of years.) But the Intel 12th Generation of mobile chips (that is, the batch of chips that Intel released this year) has a new letter: the P-series. The P-series is supposed to sit between the power-hungry H-series and the power-efficient U-series; the hope was that it would combine H-series power with U-series efficiency.

And then many -- a great many -- of this year's top ultraportable laptops got the P-series: big-screeners like the LG Gram 17; modular devices like the Framework Laptop; business notebooks like the ThinkPad X1 Yoga Gen 7; premium ultraportables like the Acer Swift 5, the Lenovo Yoga 9i, the Samsung Galaxy Book2 Pro, and the Dell XPS 13 Plus. The problem was that, in reality, the P-series was just a slightly less powerful H-series chip, which Intel had slapped an "ultraportable" label onto. It was identical to the H-series in core count and architecture, but it was supposed to draw slightly less power.
Medicine

The World Is Running Out of Helium. Why Doctors are Worried (nbcnews.com) 130

NBC News reports: A global helium shortage has doctors worried about one of the natural gas's most essential, and perhaps unexpected, uses: MRIs.

Strange as it sounds, the lighter-than-air element that gives balloons their buoyancy also powers the vital medical diagnostic machines. An MRI can't function without some 2,000 liters of ultra-cold liquid helium keeping its magnets cool enough to work. But helium — a nonrenewable element found deep within the Earth's crust — is running low, leaving hospitals wondering how to plan for a future with a much scarcer supply.... [F]our of five major U.S. helium suppliers are rationing the element, said Phil Kornbluth, president of Kornbluth Helium Consulting. These suppliers are prioritizing the health care industry by reducing helium allotments to less essential customers.

Hospitals haven't canceled patients' MRIs or shut down machines yet. They have seen helium costs rise at an alarming rate, though — possibly up to 30%, guessed Phil Kornbluth, president of Kornbluth Helium Consulting. But without an end in sight for the helium shortage, the future of MRI remains uncertain.... The problem is that no other element is cold enough for the MRI. "There's no alternative," said Donna Craft, a regional construction manager for Premier Inc. who contracts with helium suppliers for some 4,000 hospitals. "Without helium, MRIs would have to shut down...."

GE and Siemens are both developing MRIs requiring less liquid helium. Siemens recently introduced one requiring just 0.7 liters, and, according to Panagiotelis, GE rolled out a machine that's "1.4 times more efficient than previous models." These technologies aren't widely available, though, and replacing the country's 12,000 MRI machines — each weighing up to 50,000 pounds — is anything but a quick fix. Meanwhile, hospitals keep installing additional conventional MRI machines to meet demand for diagnostic scans.

The article notes some scientists are already shutting down research projects that require helium.

Thanks to long-time Slashdot reader Wildbear for submitting the article!
Science

Transparent Wood Could Soon Replace Plastics (phys.org) 90

Transparent wood promises to be an environmentally friendly substitute for glass or plastic used for making car windshields, see-through packaging and biomedical devices, according to a study. Phys.Org reports: Originally fabricated in 1992 by German scientist Siegfried Fink and since improved upon by other researchers, transparent wood is made by removing the lignin content in wood and replacing it with transparent, plastic materials. Lignin is a naturally occurring biopolymer which supports plant tissue; unlike plastics it can biodegrade and is non-toxic. According to the authors, production of transparent wood using sodium chlorite to remove lignin from wood and infiltrating it with epoxy infiltration had far less environmental impacts than commonly used methods that rely on the use of methacrylate polymer. The end-of-life analysis suggests that, transparent wood is less environmentally friendly than glass but is still better than producing polyethylene, indicating the need to improve the production technology, the authors said. "Transparent wood is mostly developed using thin slices of wood, and has good strength as that of regular wood but is lighter in weight. The scope for imparting multiple and advanced properties through the incorporation of specialized materials makes it a unique bio-based substrate for versatile applications," said Anish M. Chathoth, an assistant professor at Kerala Agricultural University's College of Forestry, in India.
Technology

Magic Leap's Smaller, Lighter Second-Gen AR Glasses Are Now Available (engadget.com) 14

Magic Leap's second take on augmented reality eyewear is available. "The glasses are still aimed at developers and pros, but they include a number of design upgrades that make them considerably more practical -- and point to where AR might be headed," reports Engadget. From the report: The design is 50 percent smaller and 20 percent lighter than the original. It should be more comfortable to wear over long periods, then. Magic Leap also promises better visibility for AR in bright light (think a well-lit office) thanks to "dynamic dimming" that makes virtual content appear more solid. Lens optics supposedly deliver higher quality imagery with easier-to-read text, and the company touts a wider field of view (70 degrees diagonal) than comparable wearables.

You can expect decent power that includes a quad-core AMD Zen 2-based processor in the "compute pack," a 12.6MP camera (plus a host of cameras for depth, eye tracking and field-of-view) and 60FPS hand tracking for gestures. You'll only get 3.5 hours of non-stop use, but the 256GB of storage (the most in any dedicated AR device, Magic Leap claims) provides room for more sophisticated apps.
The base model of the glasses costs $3,299, with the Enterprise model amounting to about $5,000.
Books

Books Are Physically Changing Because of Inflation (economist.com) 93

Rising paper prices are forcing publishers to change. Economist: Publishing can, then, find the paper for the things it wants to print, even in times of scarcity. The industry is currently experiencing another period of shortage, and war is once again a cause (along with the pandemic). In the past 12 months the cost of paper used by British book publishers has risen by 70%. Supplies are erratic as well as expensive: paper mills have taken to switching off on days when electricity is too pricey. The card used in hardback covers has at times been all but unobtainable. The entire trade is in trouble. Not every author is affected: a new thriller by Robert Galbraith, better known as J.K. Rowling, is a 1,024-page whopper -- and this week reached the top of the bestseller lists in Britain. But other books are having to change a bit. Pick up a new release in a bookshop and if it is from a smaller publisher (for they are more affected by price rises) you may find yourself holding a product that, as wartime books did, bears the mark of its time.

Blow on its pages and they might lift and fall differently: cheaper, lighter paper is being used in some books. Peer closely at its print and you might notice that the letters jostle more closely together: some cost-conscious publishers are starting to shrink the white space between characters. The text might run closer to the edges of pages, too: the margins of publishing are shrinking, in every sense. Changes of this sort can cause anguish to publishers. A book is not merely words on a page, says Ivan O'Brien, head of The O'Brien Press in Ireland, but should appeal "to every single sense." The pleasure of a book that feels right in the hand -- not too light or too heavy; pages creamy; fonts beetle-black -- is something that publishers strive to preserve. [...] For at the heart of the publishing industry lies an unsayable truth: most people can't write and most books are very bad. Readers who struggle with a volume often assume that the fault is theirs. Reviewers, who read many more books, know it is not.

Earth

A Newly Discovered Planet 40% Larger Than Earth May Be Suitable For Life (npr.org) 87

An international team of scientists says it has discovered two new "super-Earth" type planets about 100 light-years away, one of which may be suitable for life. NPR reports: Unlike any of the planets in our solar system, the nearly 1,600 known super-Earths are larger than Earth, but lighter than icy planets like Uranus and Neptune. Researchers at Belgium's University of Liege announced Wednesday that they found another one while using Earth-based telescopes to confirm the existence of a different planet initially discovered by a NASA satellite in the same solar system.

NASA's satellite found planet LP 890-9b, which is about 30% larger than Earth and orbits its sun in just 2.7 days. ULiege researchers used their SPECULOOS (Search for habitable Planets EClipsing ULtra-cOOl Stars) telescopes in Chile and Spain to take a closer look at the planet with high-precision cameras. That's when the stargazers discovered another planet, LP 890-9c (renamed SPECULOOS-2c by the ULiege researchers), which is 40% larger than Earth and takes 8.5 days to orbit its sun. Francisco Pozuelos, a researcher at the Institute of Astrophysics of Andalusia and one of the main co-authors of the paper, said in a news release that the planet could be suitable to life despite being a mere 3.7 million miles from its sun. Earth, by comparison, is located over 93 million miles away from our sun.
"Although this planet orbits very close to its star, at a distance about 10 times shorter than that of Mercury around our Sun, the amount of stellar irradiation it receives is still low, and could allow the presence of liquid water on the planet's surface, provided it has a sufficient atmosphere," Pozuelos said. "This is because the star LP 890-9 is about 6.5 times smaller than the Sun and has a surface temperature half that of our star."
Apple

Apple Announces Apple Watch Series 8, SE, and Ultra (theverge.com) 32

Today, Apple announced a handful of new products at their iPhone launch event in Cupertino. Along with four new iPhones, Apple unveiled the brand-new Series 8 Apple Watch and refreshed SE. It also unveiled a completely new, rugged Apple Watch Ultra. The Verge reports: The Apple Watch Ultra is the star of the show because it isn't something we've seen before. It's got a big honking 49mm rectangular display, which... truly is in a class of its own. Not only is it the biggest Apple Watch screen, but it's also the brightest at 2,000 nits. As for how that wrist slab feels, it was actually lighter on my wrist than I'd expected, probably because its case is made of titanium. But make no mistake -- it is a BIG watch. Another thing that's immediately apparent is the design tweaks Apple's made for the extreme fitness crowd. There's the new orange action button, a button guard, and a redesigned crown. The rim around the display is also raised to protect the sapphire crystal display -- which is something we saw on the Samsung Galaxy Watch 5 Pro as well. Plus, that display is truly flat.

Next up is the Apple Watch Series 8. At a glance, there's really not too much to differentiate it from the Series 7, though I can definitely tell the screen appears bigger. Inside, there's a new temperature sensor, though it's not something I was able to really check out here in Cupertino. The sensor is meant to help retrospectively detect ovulation. It's also got an updated chip -- the S8 -- which keeps things snappy when you're swiping through menus. The Series 8 also has a new gyroscope and accelerometer to help call emergency services if it detects you've been in a car crash.

The new SE is also a fairly incremental update. It, too, gets an upgrade to the S8 chip, whereas the original SE was a bit of a Frankenstein watch. It had the processor of the Series 5 mixed in with some sensors used in the Series 6 minus the EKG sensor. The new SE has the same motion sensors as the Series 8 for crash detection and is 20 percent faster than before. The screen is also 30 percent larger than the Series 3, and the sensor array color matches the front. It's mostly still missing the always-on display and the new temperature sensor.
All three models are available for preorder today. The Series 8 and SE will ship on September 16, with the Ultra shipping on the 23rd.
Earth

Antarctica's 'Doomsday Glacier' Melting At Fastest Rate In 5,500 Years 162

Two major glaciers in Antarctica may be shedding ice faster now than they have at any point in the past 5,500 years, new research suggests. The melting ice could lead to more than 11 feet of global sea level rise in the next several centuries, according to a new study published in Nature Geoscience. Smithsonian Magazine reports: Scientists studied both the Thwaites Glacier (nicknamed the "Doomsday Glacier" for the potentially devastating impacts if it melts) and the neighboring Pine Island Glacier on the western side of the continent, which are both vulnerable to melting from warm water flowing underneath them. The researchers analyzed penguin bones and seashells from ancient Antarctic beaches using radiocarbon dating to reconstruct changes in sea level relative to the coast over 5,000 years, per the statement. Scientists also studied the shifting height of the land under the changing loads of ice to see how glaciers retreated and advanced. Larger, heavier glaciers can cause the land to sink and sea level relative to the coast to rise and lighter glaciers can lead the land to rise and sea level relative to the coast to fall.

The researchers found that from about 5,000 years ago until 30 years ago, sea level relative to the coast fell at a steady rate consistent with stable glacial behavior. But in the past thirty years, relative sea level fall was almost five times lower, most likely because of rapid loss of glacial ice that led the earth to rise, per the study. On top of that, because the glaciers rest on a slope with no known highs, no topographic features will help stabilize the glacier where it is, potentially leading to runaway melting.
Linux

Alder Lake-Powered Linux Laptop Arrives With 14 Hours of Battery Life (tomshardware.com) 48

System76, the Colorado-based Linux laptop, desktop, and server specialist, has announced a new highly portable laptop with an Intel Alder Lake processor inside. Tom's Hardware reports: The new Lemur Pro(opens in new tab) is a "lighter than Air" 14-inch form factor laptop with excellent battery life and attractions such as open firmware (powered by Coreboot) and a 180-degree hinge. In addition, buyers can choose to go with Pop!_OS 22.04 LTS or Ubuntu 22.04 LTS pre-installed. The new Lemur Pro has many attractive modern features you might see advertised in many rival mainstream thin and light designs. However, the special sauce here is the "System76 Open Firmware with Coreboot." Coreboot, known initially as LinuxBIOS, is significant as it is an open-source BIOS implementation embraced by Linux users. It is lightweight, flexible, and feature-rich. [...]

System76 has designed the Lemur Pro with monitor-based docking in mind. It envisions users connecting to a big screen using the USB-C connection to benefit from the more expansive workspace and laptop charging. Like Windows, Linux had to have some serious tinkering under the hood to prepare for the mix of Performance and Efficiency cores in Alder Lake chips. However, rest assured, efficient hybrid scheduling is taken care of with the two OS options that can be pre-installed on the Lemur Pro.

System76 allows customers to configure and buy Lemur Pro laptops right now. There are many RAM and storage configurations to pick through, and you can add external keyboards and monitors to the bundle. The entry price with an Intel Core i5-1235U, 8GB RAM, 240GB of storage, and no extras is $1,149. However, the Core i7-1255U model is a bit of a stretch, adding $200 to the base price for the faster CPU clocks.

Microsoft

Microsoft Brings 'Windows Subsystem for Linux 2' to Window Server 2022 (theregister.com) 23

With the latest preview patch, Windows Server 2022 now supports WSL2 Linux distros, the Register reports: The move ends an odyssey that began with the arrival of the Windows Subsystem for Linux (WSL) 2 on Windows 10 several years ago and with users' calls for Windows Server to get the same treatment. The change is also somewhat of an about-face from Microsoft. In 2021, in response to pleas from users to backport the tech to Windows Server 2019, [Principal program manager for Windows Server Jeff] Woolsey described WSL in early 2021 as "fantastic for dev" and "perfect for Windows client" but warned: "If we put it in Windows Server, people will use it in production scenarios for which it isn't intended." The approved path was to spin up a full Linux VM. Quite a bit heftier than the lighter-weight WSL2.

Signs of Microsoft listening to feedback showed up earlier this year, as Microsoft Program Manager Craig Loewen "clarified" that WSL2 distros would work on Windows Server version 2004 and 20H2, although the LTSC versions found in many data centers remained free of WSL2. Until this week, that is.

TechRadar provides some context: WSL 2, which was originally released in May 2019 (opens in new tab), uses virtualization technology to run an open source Linux kernel inside of a lightweight utility virtual machine (VM). This empowers Windows users to run popular Linux apps such as Docker. Microsoft claims that unlike a traditional VM experience — which it says can be slow to boot up, is isolated, consumes a lot of resources, and requires your time to manage it — WSL 2 does not have these attributes....

The KB5014021 update is currently optional, but will be automatically rolled out to users next month....

Windows Server updates have not been without issues in recent months, however, with Microsoft having to address various problems caused by the January 2021 Patch Tuesday updates. The company issued an emergency out-of-band update to address bugs that forced domain controllers to reboot endlessly, broke Hyper-V, and rendered ReFS volumes inaccessible while showing them as RAW file systems.

Science

Balloon Detects First Signs of a 'Sound Tunnel' in the Sky (science.org) 20

Atmospheric analog to ocean's acoustic channel could be used to monitor eruptions and bombs. From a report: About 1 kilometer under the sea lies a sound tunnel that carries the cries of whales and the clamor of submarines across great distances. Ever since scientists discovered this Sound Fixing and Ranging (SOFAR) channel in the 1940s, they've suspected a similar conduit exists in the atmosphere. But few have bothered to look for it, aside from one top-secret Cold War operation. Now, by listening to distant rocket launches with solar-powered balloons, researchers say they have finally detected hints of an aerial sound channel, although it does not seem to function as simply or reliably as the ocean SOFAR. If confirmed, the atmospheric SOFAR may pave the way for a network of aerial receivers that could help researchers detect remote explosions from volcanoes, bombs, and other sources that emit infrasound -- acoustic waves below the frequency of human hearing. "It would help enormously to have those [detectors] up there," says William Wilcock, a marine seismologist at the University of Washington, Seattle. Although seismic sensors in the ground pick up most of the planet's biggest bangs, "some areas of the Earth are covered very well and others aren't."

In the ocean, the SOFAR channel is bounded by layers of warmer, lighter water above and cooler, denser water below. Sound waves, which travel at their slowest at this depth, get trapped inside the channel, bouncing off the surrounding layers like a bowling ball guided by bumpers. Researchers rely on the SOFAR channel to monitor earthquakes and eruptions under the sea floor -- and even to measure ocean temperatures rising from global warming. After geophysicist Maurice Ewing discovered the SOFAR channel in 1944, he set out to find an analogous layer in the sky. At an altitude of between 10 and 20 kilometers is the tropopause, the boundary between the troposphere, the lowest layer of the atmosphere (where weather occurs), and the stratosphere. Like the marine SOFAR, the tropopause represents a cold region, where sound waves should travel slower and farther. An acoustic waveguide in the atmosphere, Ewing reasoned, would allow the U.S. Air Force to listen for nuclear weapon tests detonated by the Soviet Union. He instigated a top-secret experiment, code-named Project Mogul, that sent up hot air balloons equipped with infrasound microphones.

Medicine

Bill Gates Gives TED Talk Proposing New Global Team to Quickly Prevent Epidemics (youtube.com) 118

Bill Gates shares a statistic about the COVID-19 pandemic. "If we'd been able to stop it within 100 days, we would've saved over 98% of the lives." "Viruses spread exponentially, and so if you get in there when the infection rate is fairly small, you can actually stop the spread."
In a new TED talk, Gates argues that we did learn a lot from this pandemic — enough to build a prevention system for next time. "Covid 19 can be the last pandemic if we take the right steps." But the answer isn't vaccines. "We also need vaccines, but we want to stop the outbreak before we have to do a global vaccination campaign." And then Gates points out that currently it could take months to get resources to a low-income country experiencing an outbreak.

Read on for Slashdot's report on Gates' proposed solution — and how he feels about his own prominence in anti-vaccine misinformation.
Facebook

Meta is Racing To Release Its First AR Glasses in 2024 (theverge.com) 43

Mark Zuckerberg has a grandiose vision for the metaverse, and he hopes that you'll one day see the same thing, too -- quite literally, through a pair of augmented reality glasses. The Verge reports: Still, Zuckerberg has ambitious goals for when his high-tech glasses will be a reality. Employees are racing to deliver the first generation by 2024 and are already working on a lighter, more advanced design for 2026, followed by a third version in 2028.ââ The details, which together give the first comprehensive look at Meta's AR hardware ambitions, were shared with The Verge by people familiar with the roadmap who weren't authorized to speak publicly. A spokesperson for Meta declined to comment for this story.

If the AR glasses and the other futuristic hardware Meta is building eventually catch on, they could cast the company, and by extension Zuckerberg, in a new light. "Zuck's ego is intertwined with [the glasses]," a former employee who worked on the project tells me. "He wants it to be an iPhone moment." Meta's CEO also sees the AR glasses, dubbed Project Nazare, as a way to get out from under the thumb of Apple and Google, which together dictate the terms that apps like Facebook have to abide by on mobile phones. The first version of Nazare is designed to work independently from a mobile phone with the assistance of a wireless, phone-shaped device that offloads parts of the computing required for the glasses to operate. A marquee feature will be the ability to communicate and interact with holograms of other people through the glasses, which Zuckerberg believes will, over time, provide people with a more immersive, compelling experience than the video calling that exists today.

Businesses

Bigger Sound In Smaller Packages, As Sonos Buys Mayht For $100 Million (techcrunch.com) 42

Sonos has acquired Dutch startup Mayht for approximately $100 million in a cash-only deal. "Mayht created a new type of speaker technology that makes it possible to pack a lot more oomph into much smaller spaces, with power savings as a nifty side-effect," reports TechCrunch. "Specifically, it created a new type of transducer -- the foundational element within speakers that create sound. Mayht has re-engineered them to enable smaller and lighter form factors without compromising on quality." From the report: Interestingly, outside of some reference speakers, the Mayht team was never planning to put its own products out to market, clearly flirting with existing speaker giants for an acquisition. Sonos liked what it saw and decided to put a $100 million ring on it to consummate the relationship, acquiring the startup. The acquisition was formally announced today.

"Mayht's breakthrough in transducer technology will enable Sonos to take another leap forward in our product portfolio," said Patrick Spence, CEO of Sonos. "This strategic acquisition gives us more incredible people, technology and intellectual property that will further distinguish the Sonos experience, enhance our competitive advantage, and accelerate our future roadmap." The Mayht team, in turn, was also pretty psyched to find a corporate partner to bring its tech to market. "We are very excited and proud to become a part of Sonos," said Scheek. "Our dream has always been to set a new standard in the audio industry. The integration of our technology into Sonos products will further revolutionize high quality sound."

Bitcoin

Washington Debates Cryptocurrency Rules, With Sights Set on Stablecoins (wsj.com) 29

As Washington attempts to get its arms around the rapidly growing cryptocurrency industry, policy makers in the Biden administration and on Capitol Hill have identified stablecoins as an initial target for tighter regulation. From a report: Often billed as one-to-one representations of a currency like the dollar, stablecoins have recently exploded in popularity as investors use them for trading other cryptocurrencies. There are dozens of stablecoins, though a handful pegged to the dollar account for most of the market value, which grew roughly 500% in the 12 months ending in October, according to a report from the Biden administration.

Both Democrats and Republicans want to create new safeguards to help ensure that one stablecoin is quickly redeemable for one dollar, while at the same time warding off broader risk to financial markets. But despite bipartisan agreement about the need for new federal action on stablecoins, policy makers remain at odds about how and when to take it. The Biden administration is asking lawmakers to pass legislation that would treat stablecoin issuers like banks, a step that Republicans and some Democrats oppose in favor of a lighter statutory touch. Other Democrats are skeptical of compromising with Republicans on the issue at all, instead pushing the Biden administration to take more aggressive steps itself. How -- and if -- Congress resolves the debate over the roughly $185 billion stablecoin market is an early test of whether Washington will ultimately write new laws or wield existing frameworks to regulate the broader $2 trillion cryptocurrency industry.

Power

Nissan, NASA Teaming Up On Solid-State Batteries (cbsnews.com) 78

Nissan is working with NASA on a new type of battery for electric vehicles that promises to charge more quickly and be lighter yet safe, the Japanese automaker said Friday. CBS News reports: The all-solid-state battery will replace the lithium-ion battery now in use for a 2028 product launch and a pilot plant launch in 2024, according to Nissan. The battery would be stable enough to be used in pacemakers, Nissan said. When finished, it will be about half the size of the current battery and fully charge in 15 minutes instead of a few hours.

The collaboration with the U.S. space program, as well as the University of California San Diego, involves the testing of various materials, Corporate Vice President Kazuhiro Doi told reporters. "Both NASA and Nissan need the same kind of battery," he said. Nissan and NASA are using what's called the "original material informatics platform," a computerized database, to test various combinations to see what works best among hundreds of thousands of materials, Doi said. The goal is to avoid the use of expensive materials like rare metals needed for lithium-ion batteries.

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