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Displays

Future iPad Pro and MacBook Pro Models Rumored To Feature Ultra-Bright Double-Stack OLED Displays (macrumors.com) 26

Apple is in discussions with Samsung and LG over applying OLED displays with a two-stack tandem structure to future iPad and MacBook models, but the devices are likely several years away from launch, according to Korean website The Elec. MacRumors reports: The report indicates that a two-stack tandem structure would consist of two layers of red, green, and blue emission layers, allowing for the future iPad and MacBook models to have significantly brighter displays with up to double the luminance. Apple's current OLED devices like the iPhone have a single-stack structure, the report adds. Given that OLED technology is expensive, it's likely the displays will be used on future iPad Pro and MacBook Pro models specifically. The report claims the future iPads will come in 11-inch and 12.9-inch sizes, which are indeed the current iPad Pro sizes.

The report claims the two-stack iPad displays will also be low-power LTPO panels, which could allow for a wider ProMotion refresh rate range between 10Hz and 120Hz, in line with the iPhone 13 Pro models. iPad Pro models have already supported ProMotion since 2017, but with a refresh rate between 24Hz and 120Hz. Timing remains a big question mark. While some earlier reports claimed the first iPad with an OLED display was slated for release in 2022, today's report claims the timeframe has been pushed back to late 2023 or 2024. The first MacBook with an OLED display might follow in 2025, but this plan could be postponed further, the report adds.

Power

Researchers Demonstrate Complete Solar-Powered Hydrocarbon Production (arstechnica.com) 73

An anonymous reader quotes a report from Ars Technica: Carbon capture. Hydrogen production. Synthetic fuels. All of these technologies have been proposed as potential resources for dealing with the crises created by our carbon dioxide emissions. While they have worked in small pilot demonstrations, most of them haven't demonstrated that they can scale to provide the economical solutions we need. In the meantime, a group of European researchers sees the methods as part of a single coherent production platform, one that goes from sunlight and air to kerosene. Thanks to a small installation on the roof of a lab in Zurich, the team has been producing small amounts of different fuels using some mirrors and a handful of reaction chambers. While the full production process would also need to demonstrate that it can scale, the researchers calculate that the platform could fuel the entire commercial aircraft industry using a small fraction of the land in the Sahara.
[...]
Overall, the results are clear: The process can work, but it's not productive enough to matter in its current state, so a large portion of the paper considers optimization and scale. Optimization is mostly a matter of many little improvements, like the better use of waste heat to ensure all the necessary heat is provided by the solar reflectors. Other targets include better catalysts and more efficient means of storing the gasses between steps. Then there's a matter of scale. To fuel a daily round-trip flight between New York City and London, the researchers estimate, it would take 10 mirror farms directing sunlight at reaction chambers in an area that gets strong and consistent sunlight. That translates to covering around 3.8 square kilometers of the desert with mirrors. (For context, that's about a quarter of the size of California's Ivanpah solar facility.) Providing for all of commercial aviation's fuel needs would require taking over half of one percent of the surface of the Sahara Desert. And that means a lot of mirrors.

The researchers suggest we will likely see the sort of dramatic cost reductions seen in other renewable resources, including technologies like concentrating solar power. That mirror-based tech saw prices drop by 60 percent over a recent 15-year period. But it's questionable whether the sorts of price drops we've seen with photovoltaics are possible, given the large material costs of all those mirrors and their associated hardware, plus the maintenance costs of keeping them clean. The flipside is that concentrating solar power costs have continued to come down, and a lot of those savings could probably be applied to heat-driven chemistry like this. And it's possible that this basic concept -- solar-powered green chemistry -- could be adapted to produce fuels with a higher value than kerosene.

Hardware

Chromebooks on 'Massive Downturn' from Pandemic-fueled Heights (arstechnica.com) 57

Although PCs are still selling at a greater volume than before the COVID-19 pandemic, demand is starting to drop. In Q3 2021, shipments of laptops, desktops, and tablets dropped 2 percent compared to Q3 2020, according to numbers that researcher Canalys shared on Monday. Interest in Chromebooks dropped the most, with a reported decline as high as 36.9 percent. Demand for tablets also fell, showing a 15 percent year-on-year decline, according to Canalys. From a report: Both Canalys and the IDC's Worldwide Quarterly Personal Computing Device Tracker shared Q3 numbers for Chromebooks and tablets on Monday. Canalys said 5.8 million Chromebooks shipped globally during this time, while the IDC said the number was 6.5 million. Both pointed to a huge decline compared to Q3 2020. Canalys reported the drop at 36.9 percent, and IDC pegged it at 29.8 percent. Canalys said that Q3 Chromebook sales took a "major downturn" as the education markets in the US, Japan, and elsewhere became saturated. Demand lessened as government programs supporting remote learning went away, the research group said. After reaching a high of 18 percent market share since the start of 2020, Chromebooks reportedly represented just 9 percent of laptop shipments in Q3 2021.
Power

US Charging Infrastructure Is Outpacing Forecasts, Study Finds (arstechnica.com) 75

During the first three months of 2021, the United States installed its 100,000th EV charger. Ars Technica reports on the important electric vehicle milestone: Of course, the actual composition of those chargers is important. It's no good having half a million places to plug in if they're all level 1 (120 V AC) chargers that take days to top up a battery EV. But a new report (PDF) from the National Renewable Energy Laboratory has dug into the data, looking at trends to see whether the nation is on track to meet its goals. At first glance, the news is positive. We added 4,566 new chargers during Q1 2021 for a total of 100,709. That means the US is already 20 percent of the way to Biden's 2030 goal. Most of those were level 2 (240 V AC) chargers, which saw 5.4-percent growth. The number of level 1 chargers actually decreased by 2.4 percent, mostly as ChargePoint decommissioned them in favor of level 2 devices.

Because a level 2 charger usually takes 8-10 hours to fully recharge a 250-300 mile BEV, drivers (particularly those who have yet to convert to an electric car) are probably more interested in the number of the faster level 3 (usually known as DC fast) chargers. Depending upon the car and the power output of the DC fast charger, these can charge a battery to 80 percent in 20-50 minutes. There was essentially no growth in DC fast chargers between Q4 2020 and Q1 2021. After multiple quarters of rapid expansion, the number of public DC fast charging ports grew by just 0.4 percent. The NREL attributes this to the integration between ChargePoint's and Greenlots' APIs [...].

Level 2 chargers can recharge any electric car, but not all BEVs can plug in to all DC fast chargers. All US Teslas use a proprietary charging plug, and 56.7 percent of all public DC fast chargers in the US are part of the Tesla Supercharger network. The various charging network APIs don't all report exactly the same information in exactly the same way, so the NREL was only able to determine the charging power for a limited number (6,821) of DC fast chargers. That led to a rather scary-looking pie chart on the Department of Energy's website showing that 40 percent of DC fast chargers were only able to supply 50 kW or less. However, the chart is based on only 6,821 chargers and excludes almost the entire Tesla Supercharger network from its data set.

Data Storage

Dropbox Is Adding Folders That Will Automatically Organize For You (theverge.com) 23

Dropbox is adding a feature that will let you add automation to folders so new files are automatically renamed, grouped into subfolders, or more. The Verge reports: The feature is called, perhaps unsurprisingly, Automated Folders, and Dropbox says it can help you (and any co-workers you share files with) stay organized with standardized names and tags. The automation you add to folders can be configured with various rules, so you can tell the system to rename any files you add to the folder following a certain pattern or to sort them into subfolders based on the date the file was uploaded to Dropbox. The rules are currently predefined, but Dropbox says it's working to make the system more customizable.

Dropbox has also added a new tagging system, letting you add words to files and folders (either manually or automatically) that you can search for later. In addition to the automatic actions, Dropbox is also adding what it calls Naming Conventions and Multi-file organize actions. Naming Conventions will let you batch renamed files in a folder following a pattern that you choose -- for example, you could rename photos to have the date the picture was taken in the file name itself. The Multi-file organize feature will let you have Dropbox sort files into subfolders based on how often people make changes to them, the date they were created, and more. Dropbox says you'll be able to preview the changes before they're made, so you don't end up with files placed somewhere you won't be able to find them.

According to Dropbox, there's also a dashboard to help you manage automated folders, which could be handy if you can't remember everything that happens in your system. File automation, along with Naming Conventions and Multi-file organization, is coming first to Dropbox for Teams users starting today and will be available for people with individual or family plans "soon," according to the company.

Transportation

Why Hyundai Is the One To Watch In the Race For EVs (thedrive.com) 200

Citing the Korean automaker's "striking designs, interesting battery tech, and robust product pipeline," John Voelcker from The Drive makes the case for why Hyundai "could emerge among the companies that transition fastest to EVs." From the report: Its battery-electrics will come fast, entering the mass market on pace with those from GM and Ford. Hyundai's smart enough not to try to compete in full-size electric pickup trucks, still the last stronghold for the Detroit 2.5, not least because they're largely unsellable outside North America. The lackluster results for Nissan and Toyota after 20 years of building U.S.-style full-size pickups provide an object lesson. But Hyundai has aggressive plans for the rest of the light truck and passenger vehicle market.

Of course, every automaker worth its salt these days has a bold plan to launch a flotilla of electric vehicles over the next 5-10 years and is pouring billions of dollars into making it happen. What's slightly different here is that Hyundai has shown over the past decade it can notably improve its cars with each generation and break new ground as fast as any other maker, all while keeping prices relatively close to Earth. It was late to SUVs, but now it has a full lineup that leads its sales and offers good value for the money. With the playing field mostly leveled by a tectonic technological shift, expect Hyundai to do the same with electric vehicles, even as the global patchwork of emissions regulations and cultural divides means different markets will move at different speeds.

When the company launched vehicles with plugs in the U.S. in 2014, it didn't limit them to two vehicles (as GM did), but released half a dozen of them. They were BEVs with ranges from 100 to 230 miles, various plug-in hybrid models of sedan and now SUV, and more are coming. Hyundai also wants to play in the world of hydrogen vehicles, though it is wisely focusing on freight movement rather than personal-use vehicles. But that's a different story altogether. What matters now is understanding how Hyundai became a force to be reckoned with in this all-important, high-stakes battle.

Robotics

Stanford Engineers Team Up With Michelin-Star Chef To Build Modular Restaurants (techcrunch.com) 52

Stanford engineers Alex Kolchinski, Alex Gruebele and Max Perham paired up with Michelin-star chef Eric Minnich to start Mezli, a company building fully autonomous modular restaurants. TechCrunch reports: Mezli's prototype robot restaurant is making a minority of the bowls served to customers and is supplemented by a human-powered kitchen. It is up and running and serving customers from the company's KitchenTown location in San Mateo. The machines take up a 10-foot by 20-foot space and are freestanding. They are loaded with ingredients, initially offering Mediterranean-style grain bowls, side dishes and drinks. The bowls start at $6.99. Diners can order directly from the restaurant or order online and pick up the food or have it delivered. The test location is already showing promise: 44% of customers who have tried the food have become repeat customers, Kolchinski said.

The company is now working on its third version of its prototype that will be ready for a public launch next year, he said. That momentum is backed by a $3 million seed round from investors including Metaplanet, roboticist Pieter Abbeel, restaurateur Zaid Ayoub and Y Combinator. That new funding will enable the company to add more talent, parts, food and operational expenses. Once the company can scale, Mezli will be able to mass produce thousands of the modular restaurants and deploy them in a fraction of the time and money it takes for traditional restaurants to get up and running, Kolchinski added. "We will be scaling up to a few locations and then mass producing them," he said. "We expect to hit 1,000 locations faster than other restaurants due to our mass production method."

Data Storage

5D Optical Disc Could Store 500TB For Billions of Year (extremetech.com) 133

Researchers from the University of Southampton "have developed a fast and energy-efficient laser-writing method for producing high-density nanostructures in silica glass," reports Optica. "These tiny structures can be used for long-term five-dimensional (5D) optical data storage that is more than 10,000 times denser than Blue-Ray optical disc storage technology." ExtremeTech reports: This type of data storage uses three layers of nanoscale dots in a glass disc. The size, orientation, and position (in three dimensions) of the dots gives you the five "dimensions" used to encode data. Researchers say that a 5D disc could remain readable after 13.8 billion years, but it would be surprising if anyone was even around to read them at that point. In the shorter term, 5D optical media could also survive after being heated to 1,000 degrees Celsius.

The technique devised by doctoral researcher Yuhao Lei uses a femtosecond laser with a high repetition rate. The process starts with a seeding pulse that creates a nanovoid, but the fast pulse doesn't need to actually write any data. The repeated weak pulses leverage a phenomenon known as near-field enhancement to sculpt the nanostructures in a more gentle way. The researchers evaluated laser pulses at a variety of power levels, finding a level that sped up writing without damaging the silica glass disc. The study reported a maximum data rate of one million voxels per second, but each bit requires several voxels in 5D optical systems. That works out to a data rate of about 230 kilobytes per second. At that point, it becomes feasible to fill one of the discs, which have an estimated capacity of 500TB. It would take about two months to write this much data, after which it cannot be changed.

This work is still in the early stages, but the team managed to write and retrieve 5GB of text data using a 5D optical medium. All you need to read the stored data is a microscope and polarizer, and it should be readable for eons.
The findings appear in Optica, Optica Publishing Group's journal for high-impact research.
Power

Tesla Is Letting Non-Tesla EVs Use Its Supercharger Network For the First Time (theverge.com) 66

Tesla launched a pilot project in the Netherlands this week in which non-Tesla electric vehicles will be allowed to use its Supercharger network, representing the first time that the automaker is opening up its proprietary charging stations to EVs from other companies. The Verge reports: Tesla's Supercharger network is often held up as the best possible example of an EV charging network: fast, reliable, and plentiful. But Tesla's network is also exclusive to Tesla owners, meaning someone driving a Volkswagen or Ford EV wouldn't be able to use it. But that's now starting to change. Tesla CEO Elon Musk has, for years, talked about opening up his company's vast Supercharger network to other electric vehicles. And over this past summer, he started revealing key details about how it would actually work. Now the company is ready to start the process by announcing its first pilot project.

Initially, only 10 Supercharger stations in the Netherlands will be available to non-Tesla EVs. Vehicle owners will need to download the most recent version of Tesla's smartphone app (version 4.2.3 or higher) in order to access the stations. After downloading the app, customers will be prompted to select "Charge Your Non-Tesla" in order to find the closest participating Supercharger site. Tesla owners can still use the stations just as normal. "We will be closely monitoring each site for congestion and listening to customers about their experiences," the company said in a blog post. "It's always been our ambition to open the Supercharger network to Non-Tesla EVs and, by doing so, encourage more drivers to go electric," the company said. "This move directly supports our mission to accelerate the world's transition to sustainable energy."

Power

'We Mapped Every Large Solar Plant on Earth Using Satellites and Machine Learning' (theconversation.com) 82

A team of researchers built a machine learning system to scan satellite images for solar energy-generating facilities greater than 10 kilowatts and then deployed the system on over 550 terabytes of imagery "using several human lifetimes of computing."

Team-member Lucas Kruitwagen, a climate change/AI researcher at Oxford, reveals what they learned. "We searched almost half of Earth's land surface area, filtering out remote areas far from human populations." In total we detected 68,661 solar facilities. Using the area of these facilities, and controlling for the uncertainty in our machine learning system, we obtain a global estimate of 423 gigawatts of installed generating capacity at the end of 2018. This is very close to the International Renewable Energy Agency's (IRENA) estimate of 420 GW for the same period. Our study shows solar PV generating capacity grew by a remarkable 81% between 2016 and 2018, the period for which we had timestamped imagery. Growth was led particularly by increases in India (184%), Turkey (143%), China (120%) and Japan (119%). Facilities ranged in size from sprawling gigawatt-scale desert installations in Chile, South Africa, India and north-west China, through to commercial and industrial rooftop installations in California and Germany, rural patchwork installations in North Carolina and England, and urban patchwork installations in South Korea and Japan...

Using the back catalogue of satellite imagery, we were able to estimate installation dates for 30% of the facilities. Data like this allows us to study the precise conditions which are leading to the diffusion of solar energy, and will help governments better design subsidies to encourage faster growth. Knowing where a facility is also allows us to study the unintended consequences of the growth of solar energy generation. In our study, we found that solar power plants are most often in agricultural areas, followed by grasslands and deserts.

This highlights the need to carefully consider the impact that a ten-fold expansion of solar PV generating capacity will have in the coming decades on food systems, biodiversity, and lands used by vulnerable populations. Policymakers can provide incentives to instead install solar generation on rooftops which cause less land-use competition, or other renewable energy options.

A note at the end of the article adds that the researchers' code and data repositories have been made available online "to facilitate more research of this type and to kickstart the creation of a complete, open, and current dataset of the planet's solar energy facilities."
Advertising

The Rolling Stones Recreate 'Start Me Up' Video With Boston Dynamics Robot Dog 'Spot' (rollingstone.com) 33

Long-time Slashdot reader destinyland writes: 40 years ago the Rolling Stones released the song "Start Me Up" as part of their album Tattoo You. Then over the next four decades they built a reputation as a surprisingly tech-savvy band...

In 1994 they became the first major recording artists to broadcast live online using the experimental "Mbone" backbone/virtual network built on top of the Internet, and made one of their new songs available for download on an FTP site. In 1995 they licensed "Start Me Up" for an ad campaign promoting Microsoft's Windows 95 (the first version of Windows including a Start button). Now on the 40th anniversary of Tattoo You, the Rolling Stones have re-released the album with nine previously unreleased tracks from the same era, "recently completed and enhanced with additional vocals and guitar." And, according to Rolling Stone magazine, they've also collaborated with Boston Dynamics to recreate the "Start Me Up" music video "with the tech company's robot dogs....the first time Boston Dynamics have employed the technology to reenact a music video."

"Pout. Prance. Repeat," quips a headline at CNET. "Robo-dog Spot performs a rollicking Rolling Stones tribute..." noting there's also additional Spot robots standing in for the other members of the band. ("There's a Spot-Jagger, a Spot-Keith Richards, a Spot-Ronnie Wood and a Spot-Charlie Watts..." Though for some reason there's no robot for bassist Bill Wyman.)

It's being billed as a collaboration between Boston Dynamics and the Rolling Stones, and Friday the band's official Twitter account tweeted a highlight from the video — along with their reaction.

"Thank you to the Boston Dynamics team for making this happen."

The Military

The US Is Installing New Power- and Accuracy-Increasing Sensors on Its Nuclear Weapons 147

new nukes "A sophisticated electronic sensor buried in hardened metal shells at the tip of a growing number of America's ballistic missiles reflects a significant achievement in weapons engineering that experts say could help pave the way for reductions in the size of the country's nuclear arsenal," reports the Washington Post, "but also might create new security perils." The wires, sensors, batteries and computing gear now being installed on hundreds of the most powerful U.S. warheads give them an enhanced ability to detonate with what the military considers exquisite timing over some of the world's most challenging targets, substantially increasing the probability that in the event of a major conflict, those targets would be destroyed in a radioactive rain of fire, heat and unearthly explosive pressures.

The new components — which determine and set the best height for a nuclear blast — are now being paired with other engineering enhancements that collectively increase what military planners refer to as the individual nuclear warheads' "hard-target kill capability." This gives them an improved ability to destroy Russian and Chinese nuclear-tipped missiles and command posts in hardened silos or mountain sanctuaries, or to obliterate military command and storage bunkers in North Korea, also considered a potential U.S. nuclear target.

The increased destructiveness of the warheads means that in some cases fewer weapons could be needed to ensure that all the objectives in the nation's nuclear targeting plans are fully met, opening a path to future shrinkage of the overall arsenal, current and former U.S. officials said in a number of interviews, in which some spoke on the condition of anonymity to discuss sensitive technology.

Production of the first of many high-yield nuclear warheads containing the gear, developed over the past decade at a cost of billions of dollars, was completed in July for installation on missiles aboard Navy submarines, the National Nuclear Security Administration announced.

The Post notes that the U.S. has now installed the technology on hundreds of submarine-based warheads, doubling their destructive power (according to estimates by a Georgetown professor).

The acting administrator of America's National Nuclear Security Administration called it "the culmination of over a decade of work."
Power

A Colorado Firm Claims It Can Triple the Power of Electric Engines (interestingengineering.com) 84

An anonymous reader quotes a report from InterestingEngineering: Energy densities of lithium-ion batteries haven't reached the potential where long-range flights can be undertaken. So, a Colorado-based startup, H3X, looked to the electric motor for ways to improve its power capacity. The team started from scratch, looking at the various components of the electric motor. Comprised of a gearbox, a power delivery system, and a main motor, these components are usually housed separately to allow sufficient cooling space, without which could result in engine failure. However, using advances in material science and electronics, coupled with the ability to 3D-print structures such as copper, the team managed to put all components together into a single housing that weighs just 33 pounds (15 kg) without impacting their cooling needs. Their motor, called the HPDM-250, is much smaller than their contemporaries and has a lesser mass as well.

The company claims that, according to the Advanced Research Projects Agency-Energy (ARPA-E) guidelines, a propulsion system of a commercial aircraft such as Boeing 737 must deliver a continuous power density of 12 kW/kg. However, conventional electric motors can only generate a maximum of up to 4kW/kg. Thanks to its reduced weight, the HPDM-250's power density clocks up to an impressive 13kW/kg. According to H3X, this is sufficient to power any mass-sensitive or high-performance application such as electric boats and has urban air mobility applications. Among the other targets for the company that remain in the distance are short-haul, large commercial flights in the sub-1000 mile range.

Max Liben, Chief Technology Office at H3X, told TechCrunch that using advanced technologies made the manufacturing of their electric motor less laborious and yet not very expensive. Even when putting the components together, the team was conscious of maintenance needs and has ensured that servicing their motors is hassle-free as well. Whether powered by electric batteries or hydrogen fuel, these advanced electric motors are likely to play a role in enabling electric air mobility, even over longer distances.

Transportation

Toyota Unveils Its First All-Electric Car (electrek.co) 103

At an event in Japan today, Toyota unveiled its first all-electric car: the bZ4X. Electrek reports: "bZ" stands for "beyond zero," which is Toyota's latest electrification strategy and a sort of sub-brand for its upcoming electric vehicles, starting with the bZ4X. The electric SUV hasn't been updated much from the concept. It still features some sharp lines and aggressive design. In terms of specs, we finally have more details. Toyota has been clear that every spec it released today is for the Japanese version of the car. Details on the US version are expected to come next month, but it should still give us a good idea.

The vehicle is equipped with a 71.4 kWh battery pack. As for what range it enables, Toyota is only releasing right now "cruising range per charge (WLTC)," which it claims to be 500 km (310 miles) for the front-wheel drive version and 460 km (286 miles) for the all-wheel-drive version. The front-wheel-drive version is equipped with a single 150 kW motor while the all-wheel-drive version is equipped with an 80 kW motor on each axle. The DC fast-charging capacity is apparently capped at 150 kW and Toyota says that it can charge to 80% state-of-charge in about 30 minutes with that capacity.

First off, it's capable of bidirectional charging for vehicle-to-home capacity. It's also offered with an optional solar roof, which Toyota says can "generates electricity equivalent to 1,800 km of driving distance per year." Toyota is also offering the bZ4X with an optional "wing-shaped" steering wheel, which the automaker claims improve visibility. The electric SUV is expected to land first in Japan in mid-2022.
More details about pricing, specs and features will be available in the coming months. The news comes after the company said it expects to spend more than $13.5 billion to develop EV battery tech and supply by 2030.
Facebook

Leaked Photo Shows Meta's Planned Competitor To Apple Watch (bloomberg.com) 28

An anonymous reader quotes a report from Bloomberg: Meta, the company formerly known as Facebook, is developing a smartwatch with a front-facing camera and rounded screen, according to an image of the device found inside one of the tech giant's iPhone apps. The photo shows a watch with a screen and casing that's slightly curved at the edges. The front-facing camera -- similar to what you'd see on a smartphone -- appears at the bottom of the display, and there's a control button for the watch on the right side. The image was found inside of the company's app for controlling its new smart glasses launched in partnership with Ray-Ban. The picture was located by app developer Steve Moser and shared with Bloomberg News.

The watch has a detachable wrist strap and what appears to be a button at the top of the watch case. Its large display mimics the style of Apple's watch -- rather than the more basic fitness trackers sold by Google's Fitbit and Garmin. The camera suggests the product will likely be used for videoconferencing, a feature that would make Meta's device stand out. Apple's smartwatch doesn't have a camera, nor do rival products from companies such as Samsung. Facebook has been planning to launch its first watch as early as 2022, but a final decision on timing hasn't been made yet and the debut could be later, according to a person with knowledge of the matter. The company is working on three generations of the product aimed at different release time frames, the person said. The device in the image could ultimately represent a version that is never released, but it's the first evidence of the company's work on the project.
Not only does the code inside the software of the watch indicate it'll work with iOS and Android devices, but it may also be used as an input device or accessory for the company's VR and AR headsets.
Supercomputing

China's New Quantum Computer Has 1 Million Times the Power of Google's (interestingengineering.com) 143

Physicists in China claim they've constructed two quantum computers with performance speeds that outrival competitors in the U.S., debuting a superconducting machine, in addition to an even speedier one that uses light photons to obtain unprecedented results, according to a recent study published in the peer-reviewed journals Physical Review Letters and Science Bulletin. Interesting Engineering reports: The supercomputer, called Jiuzhang 2, can calculate in a single millisecond a task that the fastest conventional computer in the world would take a mind-numbing 30 trillion years to do. The breakthrough was revealed during an interview with the research team, which was broadcast on China's state-owned CCTV on Tuesday, which could make the news suspect. But with two peer-reviewed papers, it's important to take this seriously. Pan Jianwei, lead researcher of the studies, said that Zuchongzhi 2, which is a 66-qubit programmable superconducting quantum computer is an incredible 10 million times faster than Google's 55-qubit Sycamore, making China's new machine the fastest in the world, and the first to beat Google's in two years.

The Zuchongzhi 2 is an improved version of a previous machine, completed three months ago. The Jiuzhang 2, a different quantum computer that runs on light, has fewer applications but can run at blinding speeds of 100 sextillion times faster than the biggest conventional computers of today. In case you missed it, that's a one with 23 zeroes behind it. But while the features of these new machines hint at a computing revolution, they won't hit the marketplace anytime soon. As things stand, the two machines can only operate in pristine environments, and only for hyper-specific tasks. And even with special care, they still make lots of errors. "In the next step we hope to achieve quantum error correction with four to five years of hard work," said Professor Pan of the University of Science and Technology of China, in Hefei, which is in the southeastern province of Anhui.

Apple

AnandTech Reviews Apple's M1 Pro and M1 Max Chips (anandtech.com) 207

AnandTech reviews the recently unveiled M1 Pro and M1 Max chips : The M1 Pro and M1 Max change the narrative completely -- these designs feel like truly SoCs that have been made with power users in mind, with Apple increasing the performance metrics in all vectors. We expected large performance jumps, but we didn't expect the some of the monstrous increases that the new chips are able to achieve. On the CPU side, doubling up on the performance cores is an evident way to increase performance -- the competition also does so with some of their designs. How Apple does it differently, is that it not only scaled the CPU cores, but everything surrounding them. It's not just 4 additional performance cores, it's a whole new performance cluster with its own L2. On the memory side, Apple has scaled its memory subsystem to never before seen dimensions, and this allows the M1 Pro & Max to achieve performance figures that simply weren't even considered possible in a laptop chip. The chips here aren't only able to outclass any competitor laptop design, but also competes against the best desktop systems out there, you'd have to bring out server-class hardware to get ahead of the M1 Max -- it's just generally absurd.

On the GPU side of things, Apple's gains are also straightforward. The M1 Pro is essentially 2x the M1, and the M1 Max is 4x the M1 in terms of performance. Games are still in a very weird place for macOS and the ecosystem, maybe it's a chicken-and-egg situation, maybe gaming is still something of a niche that will take a long time to see make use of the performance the new chips are able to provide in terms of GPU. What's clearer, is that the new GPU does allow immense leaps in performance for content creation and productivity workloads which rely on GPU acceleration. To further improve content creation, the new media engine is a key feature of the chip. Particularly video editors working with ProRes or ProRes RAW, will see a many-fold improvement in their workflow as the new chips can handle the formats like a breeze -- this along is likely going to have many users of that professional background quickly adopt the new MacBook Pro's. For others, it seems that Apple knows the typical MacBook Pro power users, and has designed the silicon around the use-cases in which Macs do shine. The combination of raw performance, unique acceleration, as well as sheer power efficiency, is something that you just cannot find in any other platform right now, likely making the new MacBook Pro's not just the best laptops, but outright the very best devices for the task.
It's a comprehensive review, and Intel should be panicking.
China

China To Cut Fossil Fuel Use To Below 20% By 2060 186

China is targeting a clean energy goal of reducing fossil fuel use to below 20% by 2060, according to an official plan published by state media. The Guardian reports: The cabinet document, released on Sunday, follows a pledge by President Xi Jinping to wean the world's biggest polluter off coal, with a target of peaking carbon emissions by 2030 and achieving carbon neutrality 30 years later. But the country has been criticized for pushing ahead with opening dozens of new coal-fired power plants. Authorities have also been wanting to ramp up production, with coal prices surging and supplies running low, both factors behind recent power outages. The guidelines come as countries gear up for a new round of climate talks in Glasgow starting on 31 October, from which Xi will be conspicuously absent. China faces a struggle to wean itself off coal, which fuels nearly 60% of its energy-hungry economy.

But on Sunday guidelines published by China's official Xinhua news agency laid out a host of targets in its path towards carbon neutrality. Among them was the proportion of non-fossil fuel consumption reaching about 25% of total energy use by 2030 -- when the nation targets peak emissions. By then, carbon dioxide emissions per unit of GDP would have dropped by more than 65% from 2005 levels, while the total installed capacity of wind and solar power is targeted to reach more than 1,200 gigawatts, Xinhua said. The guidelines also reiterated an earlier aim for carbon emissions per unit of GDP to fall 18% in 2025, from 2020 standards.
Power

Argon Fluoride Laser Could Lead To Practical Fusion Reactors (newatlas.com) 55

The US Naval Research Laboratory (AFL) is developing an Argon Fluoride (ArF) laser that may one day make fusion power a practical commercial technology. New Atlas reports: The wide-bandwidth ultraviolet laser is designed to have the shortest laser wavelength that can scale up to power a self-sustaining fusion reaction. [...] The NRL's ArF laser is intended for a test facility based on the principle of Inertial Confinement Fusion (ICF). In this, a bead of deuterium or tritium, which are heavy isotopes of hydrogen, is fired upon by multiple lasers, heating and compressing it in a fraction of a second to such an extent that the hydrogen atoms implode, fuse together, and release enormous amounts of energy.

The new deep ultraviolet laser, also known as a laser driver, is claimed to transfer energy to the fuel bead with greater efficiency and produces much higher temperatures to generate the implosion. Using radiation hydrodynamics simulations the NRL scientists say that performance could be increased a hundredfold with an efficiency of 16 percent, compared to only 12 percent from the next most efficient krypton fluoride laser. Because of these improvements, the ArF laser could lead to smaller and less expensive fusion power plants. However, the team stresses that there is still a long way to go before fusion is hooked up to the national grid. The laser will need to provide the required energy, repetition rate, precision, and billion-shot class reliability for a practical plant.

To move towards this, the laboratory is running a three-phase program with the first dedicated to the basic science and technology of the ArF laser. This will be followed by phase two, which will concentrate on building and testing a full-scale high-energy ArF laser, and then phase three where an implosion facility consisting of 20 to 30 lasers will be constructed. "The advantages could facilitate the development of modest size, less expensive fusion power plant modules operating at laser energies less than one megajoule," says Steve Obenschain, Ph.D., a research physicist at NRL. "That would drastically change the existing view on laser fusion energy being too expensive and power plants being too large."
The research was published in the Philosophical Transactions of the Royal Society.
Hardware

CPU Benchmarks: Pre-Release Intel Alder Lake Chip Beats Apple's M1 Max (zdnet.com) 137

An anonymous reader quotes a report from ZDNet: The reign of Apple's M1 SoC at the top of the Geekbench speed benchmarks may soon be over with the impending arrival of Intel's 12th-generation Alder Lake mobile processors. Hardware site Wccftech appears to have been leaked Intel's upcoming Core i9-12900HK mobile CPU, and has now revealed the first benchmarks. The results show Intel's mobile CPU narrowly outperforming Apple's flagship 10-core M1 Max, which also integrates a 32-core GPU and 64GB of unified memory.

In these latest tests, the Core i9-12900HK outperforms the M1 Max on both single-core and multi-core benchmarks. The margin is slim, but is important for Intel since Apple ditched its CPUs for its own designs in new MacBooks. Intel's Alder Lake CPU didn't beat the M1 Max by much, with respective single-core scores of 1851 and 1785. It beat the Core i9-11980HK and AMD's top mobile CPU, the Ryzen 5980HX, by a bigger margin: the latter two CPUs saw scores of 1616 and 1506, respectively. In the multi-core benchmark, the Core i9-12900HK scored 13256 versus the M1 Max's score of 12753. Again, it trounced AMD's 5980HX, which scored 8217. Wccftech's Alder Lake benchmarks were run using Windows 11, so it's possible Thread Director's hardware scheduling influenced the results.

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