Intel is replacing its Pentium and Celeron brands with just Intel Processor. The new branding will replace both existing brands in 2023 notebooks and supposedly make things easier when consumers are looking to purchase budget laptops. From a report: Intel will now focus on its Core, Evo, and vPro brands for its flagship products and use Intel Processor in what it calls "essential" products. "Intel is committed to driving innovation to benefit users, and our entry-level processor families have been crucial for raising the PC standard across all price points," explains Josh Newman, VP and interim general manager of mobile client platforms at Intel. "The new Intel Processor branding will simplify our offerings so users can focus on choosing the right processor for their needs."

The end of the Pentium brand comes after nearly 30 years of use. Originally introduced in 1993, flagship Pentium chips were first introduced in high-end desktop machines before making the move to laptops. Intel has largely been using its Core branding for its flagship line of processors ever since its introduction in 2006, and Intel repurposed the Pentium branding for midrange processors instead. Celeron was Intel's brand name for low-cost PCs. Launched around five years after Pentium, Celeron chips have always offered a lot less performance at a lot less cost for laptop makers and, ultimately, consumers. The first Celeron chip in 1998 was based on a Pentium II processor, and the latest Celeron processors are largely used in Chromebooks and low-cost laptops.

Backup and cloud storage company Backblaze has published data comparing the long-term reliability of solid-state storage drives and traditional spinning hard drives in its data center. Based on data collected since the company began using SSDs as boot drives in late 2018, Backblaze cloud storage evangelist Andy Klein published a report yesterday showing that the company's SSDs are failing at a much lower rate than its HDDs as the drives age. ArsTechnica: Backblaze has published drive failure statistics (and related commentary) for years now; the hard drive-focused reports observe the behavior of tens of thousands of data storage and boot drives across most major manufacturers. The reports are comprehensive enough that we can draw at least some conclusions about which companies make the most (and least) reliable drives. The sample size for this SSD data is much smaller, both in the number and variety of drives tested -- they're mostly 2.5-inch drives from Crucial, Seagate, and Dell, with little representation of Western Digital/SanDisk and no data from Samsung drives at all. This makes the data less useful for comparing relative reliability between companies, but it can still be useful for comparing the overall reliability of hard drives to the reliability of SSDs doing the same work.

Backblaze uses SSDs as boot drives for its servers rather than data storage, and its data compares these drives to HDDs that were also being used as boot drives. The company says these drives handle the storage of logs, temporary files, SMART stats, and other data in addition to booting -- they're not writing terabytes of data every day, but they're not just sitting there doing nothing once the server has booted, either. Over their first four years of service, SSDs fail at a lower rate than HDDs overall, but the curve looks basically the same -- few failures in year one, a jump in year two, a small decline in year three, and another increase in year four. But once you hit year five, HDD failure rates begin going upward quickly -- jumping from a 1.83 percent failure rate in year four to 3.55 percent in year five. Backblaze's SSDs, on the other hand, continued to fail at roughly the same 1 percent rate as they did the year before.

Extreme heat in California has left Twitter without one of its key data centers, and a company executive warned in an internal memo obtained by CNN that another outage elsewhere could result in the service going dark for some of its users. CNN reports: "On September 5th, Twitter experienced the loss of its Sacramento (SMF) datacenter region due to extreme weather. The unprecedented event resulted in the total shutdown of physical equipment in SMF," Carrie Fernandez, the company's vice president of engineering, said in an internal message to Twitter engineers on Friday. Major tech companies usually have multiple data centers, in part to ensure their service can stay online if one center fails; this is known as redundancy.

As a result of the outage in Sacramento, Twitter is in a "non-redundant state," according to Fernandez's Friday memo. She explained that Twitter's data centers in Atlanta and Portland are still operational but warned, "If we lose one of those remaining datacenters, we may not be able to serve traffic to all Twitter's users." The memo goes on to prohibit non-critical updates to Twitter's product until the company can fully restore its Sacramento data center services. "All production changes, including deployments and releases to mobile platforms, are blocked with the exception of those changes required to address service continuity or other urgent operational needs," Fernandez wrote. In a statement about the Sacramento outage, a Twitter spokesperson told CNN, "There have been no disruptions impacting the ability for people to access and use Twitter at this time. Our teams remain equipped with the tools and resources they need to ship updates and will continue working to provide a seamless Twitter experience."

Ben Nowack, a 26-year old inventor and CEO of Tons of Mirrors, is trying to use satellite-mounted reflective surfaces to redirect sunlight to earthbound solar panels at night. In an interview with Motherboard, Nowack explains what inspired this idea and how he can turn his concept into reality. Here's an excerpt from the report: What was the initial idea? I had an interesting way to solve the real issue with solar power. It's this unstoppable force. Everybody's installing so many solar panels everywhere. It's really a great candidate to power humanity. But sunlight turns off, it's called nighttime. If you solve that fundamental problem, you fix solar everywhere.

Where did the idea come from? I was watching a YouTube video called The Problem with Solar Energy in Africa. It was basically saying that you need three times as many solar panels in Germany as you do in the Sahara Desert and you can't get the power from the Sahara to Germany in an easy way. I thought, what if you could beam the sunlight and then reflect it with mirrors, and put that light into laser beam vacuum tubes that zigzag around the curvature of the Earth. It could be this beam that comes in just like power companies, this tube full of infinite light. That was the initial idea. But the approach was completely economically unworkable. I was like, this is not going to compete with solar in 10 years. I should just completely give up and do something else. Then I was on a run two days later and thought what if I put that thing that turns sunlight into a beam in orbit then you don't have to build a vacuum tube anymore. And it's so much more valuable because you can shine sunlight on solar farms that already exist. Then I developed several more technologies which I know for a fact no one else is working on. That made the model even more economical.

Are these just like regular household mirrors, but fixed to a satellite? If you did that, the light would go to too many places. The sun is a certain size. It's not a point, it has a distance across. The light from one side of the sun would bounce off your mirror, and the light from the other side would also bounces off your mirror. If you used a perfectly flat mirror, every single microscopic piece would have this angle of diverging light coming from it. By the time the reflection hit Earth, you'd get a 3.6 kilometer diameter spot, which is gigantic. There are only 10 solar farms that big. So I did the math, and figured out that if I could hit a 500-meter spot instead of a 3,600-meter spot, then I'd be able to hit 44 times more solar sites per orbit.

In an update coming to iOS 16 later this year, Apple plans to add a new "Clean Energy Charging" option in the United States. MacRumors reports: The information was shared in Apple's iOS 16 press release, and it says that clean energy charging will optimize charging times for when the grid is using cleaner energy sources. With Clean Energy Charging, Apple is aiming to decrease the carbon footprint of the iPhone. This is the first we've heard of clean energy charging, and it's not a feature that Apple has previously highlighted.

Autonomous tech developer Nuro is teaming up with Uber Eats in a long-awaited partnership that will see the company's latest robot take over the delivery of food to app users. Autoweek reports: The two companies signed a 10-year contract just a few days ago, paving the way for a wider rollout of Nuro's driverless delivery robots, which have been operating on a limited scale in several cities. The partnership will kick off slowly, with Nuro deploying its robots to Houston and Mountain View, California, as a start, before the service makes a wider debut in the Bay Area.

Perhaps more importantly, Nuro's delivery robots will allow Uber Eats to not have to pay a human driver, which is something that company has been working toward for years as part of its primary business as well. However, the lagging development of Level 4 and Level 5 autonomy, once widely expected to arrive around 2020, had stalled ambitions for Uber, which has struggled with profitability through normal operations with independent contractor drivers. Nuro delivery robots enjoyed renewed interest from business partners in the early months of the pandemic, but the company's technology is now being viewed as a cost saver for operators rather than a method of more sanitary delivery.

Of course, a limited rollout in two cities plus plans to launch in the Bay Area won't transform Uber Eats' business model overnight. This could take years even with an unlimited supply of Nuro delivery robots -- with regulatory approval still being the major impediment. That's because commercial driverless permits are granted on a state-by-state basis, in addition to city and county approvals, which were hard enough for Nuro to obtain in the Bay Area, where Level 4 robotaxis are being tested. Nuro will need to focus its efforts in those areas where traffic is suitable for its robots.

VMware engineers have tested the Linux kernel's fix for the Retbleed speculative execution bug, and report it can impact compute performance by a whopping 70 percent. The Register reports: In a post to the Linux Kernel Mailing List titled "Performance Regression in Linux Kernel 5.19", VMware performance engineering staffer Manikandan Jagatheesan reports the virtualization giant's internal testing found that running Linux VMs on the ESXi hypervisor using version 5.19 of the Linux kernel saw compute performance dip by up to 70 percent when using single vCPU, networking fall by 30 percent and storage performance dip by up to 13 percent. Jagatheesan said VMware's testers turned off the Retbleed remediation in version 5.19 of the kernel and ESXi performance returned to levels experienced under version 5.18.

Because speculative execution exists to speed processing, it is no surprise that disabling it impacts performance. A 70 percent decrease in computing performance will, however, have a major impact on application performance that could lead to unacceptable delays for some business processes. VMware's tests were run on Intel Skylake CPUs -- silicon released between 2015 and 2017 that will still be present in many server fleets. Subsequent CPUs addressed the underlying issues that allowed Retbleed and other Spectre-like attacks.

Tom's Hardware reports: We're here in Israel for Intel's Technology Tour 2022, where the company is sharing new information about its latest products, much of it under embargo until a later date. However, the company did share a slide touting that Raptor Lake is capable of operating at 6GHz at stock settings and that it has set a world overclocking record at 8GHz - obviously with liquid nitrogen (here's our deep dive on the 13th-Gen Intel processors). Intel also shared impressive performance projections for single- and multi-thread performance.

Notably, the peak of 6 GHz is 300 MHz faster than the 5.7 GHz for AMD's Ryzen 7000 processors, but Intel hasn't announced which product will hit that peak speed. We also aren't sure if a 6GHz chip will arrive with the first wave of chips or be a special edition 'KS' model. Intel also claimed that Raptor Lake will have a 15% gain in single-threaded performance and a 41% gain in multi-threaded, as measured by SPECintrate_2017 and compared to Alder Lake, and an overall '40% performance scaling.'

There's a tiny, black-freckled toad that likes the water in hot springs.

Unfortunately, the only place in the world where the species is found is on 760 acres of wetlands about 100 miles east of Reno, Nevada, according to the New York Times. And that's near the site for two renewable-energy geothermal plants which poses "significant risk to the well-being of the species," according to America's Fish and Wildlife Service — which just announced an emergency measure declaring it an endangered species. The temporary protection, which went into effect immediately and lasts for 240 days, was imposed to ward off the toad's potential extinction, the U.S. Fish and Wildlife Service said in a statement, adding that it would consider public comments about whether to extend the toad's emergency listing.

The designation would add another hurdle for a plan to build two power plants with the encouragement of the U.S. Bureau of Land Management. The project is already the subject of a lawsuit filed by conservationists and a nearby Native American tribe. They hope the emergency listing can be used to block construction, which recently resumed.... The suit contended that the geothermal plants would dry up nearby hot springs sacred to the tribe and wipe out the Dixie Valley toad species.
The U.S. Fish and Wildlife Service argues that "protecting small population species like this ensures the continued biodiversity necessary to maintain climate-resilient landscapes in one of the driest states in the country."

They were only recently scientifically described — or declared a unique species — in 2017, making the Dixie Valley toad ">the first new toad species to be described in the U.S. in nearly 50 years. And they are truly unique. When they were described, scientists analyzed 14 different morphological characteristics like size, shape, and markings. Dixie Valley toads scored "significantly different" from other western toad species in all categories.

Thanks to long-time Slashdot reader walterbyrd for sharing the link!

China remains the world's largest lithium processor, reports Reuters. But Tesla "is considering setting up a lithium refinery on the gulf coast of Texas, as it looks to secure supply of the key component used in batteries amid surging demand for electric vehicles." The potential battery-grade lithium hydroxide refining facility, which Tesla touted as the first of its kind in North America, will process "raw ore material into a usable state for battery production", the company said in an application filed with the Texas Comptroller's Office.

A decision to invest in Texas will also be based on the ability to obtain relief on local property taxes, Tesla said.

Chief Executive Officer Elon Musk has previously said that Tesla may have to enter the mining and refining industry directly at scale as lithium prices surge. Musk has also been vocal about the need for more players in the lithium refining industry.... Securing a steady supply of battery components is seen critical for Tesla as it faces fierce competition in the fast-growing market for electric cars. If approved, construction could begin in the fourth quarter of 2022 and would reach commercial production by the end of 2024, Tesla said in the application dated Aug. 22....

If Tesla's plan goes ahead, the carmaker could become the first in the sector to invest directly in lithium refining as automakers scramble to stitch up deals with miners and refiners.
In addition, the article points out, Tesla "also said it would use less hazardous reagents and create usable byproducts, compared with the conventional process."

"Europe's largest nuclear plant has been reconnected to Ukraine's electricity grid," the Associated Press just reported. But that only means that engineers can now "shut down its last operational reactor in an attempt to avoid a radiation disaster as fighting rages in the area." The six-reactor Zaporizhzhia plant lost its outside source of power a week ago after all its power lines were disconnected as a result of shelling. It was operating in "island mode" for several days, generating electricity for crucial cooling systems from its only remaining operational reactor.

Nuclear operator Energoatom said one of those power lines was restored "to its operational capacity" late Saturday, making it possible to run the plant's safety and other systems on electricity from the power system of Ukraine. "Therefore, a decision was made to shut down power unit No. 6 and transfer it to the safest state — cold shutdown," the company said in a statement.

Energoatom said the risk remains high that outside power is cut again, in which case the plant would have to fire up emergency diesel generators to keep the reactors cool and prevent a nuclear meltdown. The company's chief told The Associated Press on Thursday that the plant only has diesel fuel for 10 days.
Today NPR reminded readers that nuclear reactors "are more like charcoal grills than gas stoves. Even after they're shut off, they remain hot for a long period of time. Water must still circulate in the cores to prevent a meltdown."

Here's a chart showing exactly how "released thermal power" drops quickly — but does not stop. And it also notes that "Cooling failures after an emergency shutdown of a reactor were the first cause of serious accidents... evidenced by the accidents at Three Mile Island in 1986 and at Fukushima in 2011."

"The first led to the loss of one reactor, the second to the loss of 3 reactors and releases of radioactivity into the environment."

SiFive is the first company to produce a chip implementing the RISC-V ISA.

They've now been selected to provide the core CPU for NASA's next generation High-Performance Spaceflight Computing processor (or HSPC), according to a SiFive announcement: HPSC is expected to be used in virtually every future space mission, from planetary exploration to lunar and Mars surface missions.

HPSC will utilize an 8-core, SiFive® Intelligence X280 RISC-V vector core, as well as four additional SiFive RISC-V cores, to deliver 100x the computational capability of today's space computers. This massive increase in computing performance will help usher in new possibilities for a variety of mission elements such as autonomous rovers, vision processing, space flight, guidance systems, communications, and other applications....

The SiFive X280 is a multi-core capable RISC-V processor with vector extensions and SiFive Intelligence Extensions and is optimized for AI/ML compute at the edge. The X280 is ideal for applications requiring high-throughput, single-thread performance while under significant power constraints. The X280 has demonstrated a 100x increase in compute capabilities compared to today's space computers..

In scientific and space workloads, the X280 provides several orders of magnitude improvement compared to competitive CPU solutions.
A business development executive at SiFive says their X280 core "demonstrates orders of magnitude performance gains over competing processor technology," adding that the company's IP "allows NASA to take advantage of the support, flexibility, and long-term viability of the fast-growing global RISC-V ecosystem.

"We've always said that with SiFive the future has no limits, and we're excited to see the impact of our innovations extend well beyond our planet."

And their announcement stresses that open hardware is a win for everybody: The open and collaborative nature of RISC-V will allow the broad academic and scientific software development community to contribute and develop scientific applications and algorithms, as well optimizing the many math functions, filters, transforms, neural net libraries, and other software libraries, as part of a robust and long-term software ecosystem.

"A vital offsite electricity supply to the Zaporizhzhia nuclear plant has been destroyed by shelling," the Guardian reported Friday, "and there is little likelihood a reliable supply will be re-established, the United Nations' nuclear watchdog chief has said." Rafael Grossi, the director general of the International Atomic Energy Agency (IAEA), said shelling had destroyed the switchyard of a nearby thermal power plant. The plant has supplied power to the nuclear facility each time its normal supply lines had been cut over the past three weeks.

The thermal plant was also supplying the surrounding area, which was plunged into darkness. Local Ukrainian officials said work was under way to restore the connection, which has been cut multiple times this week....

When the thermal supply has been cut the plant has relied on its only remaining operating reactor for the power needed for cooling and other safety functions. This method is designed to provide power only for a few hours at a time. Diesel generators are used as a last resort. The constant destruction of thermal power supply has led Ukraine to consider shutting down the remaining operating reactor, said Grossi. Ukraine "no longer [has] confidence in the restoration of offsite power", he said.

Grossi said that if Ukraine decided not to restore the offsite supply the entire power plant would be reliant on emergency diesel generators to ensure supplies for the nuclear safety and security functions.

"As a consequence, the operator would not be able to restart the reactors unless offsite power was reliably re-established," he said.
NPR provides some context: Normally, the plant holds a 10-day reserve of diesel fuel, the agency says, and currently has approximately 2,250 tonnes of fuel available. If that fuel is depleted, or the generators are damaged in further fighting, it could trigger a meltdown.

But Steven Nesbit, a nuclear engineer and member of the American Nuclear Society's rapid response taskforce, which is tracking the current crisis, says that doesn't necessarily mean there would be a Chernobyl-like catastrophe. The meltdown at Chernobyl was due to a unique mix of design flaws and operator error that would be essentially impossible to replicate at Zaporizhzhia. And unlike the Fukushima nuclear disaster in 2011, some of the reactors at Zaporizhzhia have already been shut down for a while, allowing the nuclear fuel to cool somewhat, Nesbit says. Even in the worst case scenario, the reactors at Zaporizhzhia are a modern design surrounded by a heavy "containment" building, Nesbit says. "It's reinforced concrete, typically about three to four feet of that; it's designed to withstand very high internal pressures." That could allow it to hold in any radioactive material.

But the world's nuclear agency doesn't want to test any of this.
Meanwhile, the French international news agency AFP reports on what's been happening at the plant since it was captured by Russian troops in March: Russian forces controlling Ukraine's Zaporizhzhia nuclear power plant have killed two staff at the facility and detained and abused dozens of others, the head of Ukraine's nuclear energy agency told AFP on Friday.

"We do not know where about ten people are now," Petro Kotin said. "They were taken (by the Russians) and after that we have no information about their whereabouts," Kotin said, adding about 200 people had been detained. He described the current situation at the plant as "very difficult," citing "torture" of staff and "beatings" of personnel. "The Russians look for pro-Ukrainian people and persecute them. People are psychologically broken," he said in an interview with AFP reporters in his office in Kyiv... "Two people on the territory of the plant were wounded during shelling — a woman and a man — on separate occasions," Kotin, clad in a military-style jacket, said.

"But people understand that the nuclear safety of the plant depends on them, so the employees return to Energodar and continue working at the facility," he added.

Nvidia announced yesterday that its upcoming H100 "Hopper" Tensor Core GPU set new performance records during its debut in the industry-standard MLPerf benchmarks, delivering results up to 4.5 times faster than the A100, which is currently Nvidia's fastest production AI chip. Ars Technica reports: The MPerf benchmarks (technically called "MLPerfTM Inference 2.1") measure "inference" workloads, which demonstrate how well a chip can apply a previously trained machine learning model to new data. A group of industry firms known as the MLCommons developed the MLPerf benchmarks in 2018 to deliver a standardized metric for conveying machine learning performance to potential customers. In particular, the H100 did well in the BERT-Large benchmark, which measures natural language-processing performance using the BERT model developed by Google. Nvidia credits this particular result to the Hopper architecture's Transformer Engine, which specifically accelerates training transformer models. This means that the H100 could accelerate future natural language models similar to OpenAI's GPT-3, which can compose written works in many different styles and hold conversational chats. The chip, which is still in development, is forecasted to replace the A100 as the company's flagship data center GPU. The U.S. government imposed restrictions last week on exports of the chips to China, leading many to fear that Nvidia might not be able to deliver the H100 by the end of the year. However, Nvidia clarified that the U.S. government will allow it to continue development of the chip in China, "so the project appears back on track for now," reports Ars.

Garmin has reacted to Apple's new rugged Apple Watch Ultra, saying in a tweet following the iPhone 14 and Apple Watch event that it measures battery life in "months" and "not hours," promoting its latest Enduro 2 watch for athletes. MacRumors reports: While the Apple Watch Ultra has the longest battery life of any Apple Watch to date, with Apple promising up to 36 hours of normal use and up to 60 hours with watchOS 9's new Low Power Mode setting and other optimizations, the Enduro 2 can last significantly longer depending on usage scenarios. Despite Garmin's claim that it measures battery life in months, the company actually advertises the Enduro 2 as having "up to 150 hours of battery life in GPS mode with solar charging" and "up to 34 days of battery life in smartwatch mode." The Enduro 2 has a 1.4-inch solar-powered display, compared to the nearly 2-inch display on the Apple Watch Ultra that can reach a peak brightness of 2,000 nits, the brightest ever in an Apple Watch. Battery life seems to be the main point of contention, based on comments from Hacker News and Reddit. "As someone who is into trail running and backpacking, a 36 hour battery life is untenable, and charging it every night seems like a pain," writes user lukeinator42.

"The real irony of the charge-at-night model is that you miss the single biggest source of error in human life: lack of sleep," adds killjoywashere. "Accurate sleep measurement is, on a day-to-day basis, far more valuable than many of the features advertised on this system."

An anonymous reader quotes a report from The Register: The biz's GENE-ADP6, announced this week, can pack as much as a 12-core/16-thread Intel processor with Iris Xe graphics into a 3.5-inch form factor. The diminutive system is aimed at machine-vision applications and can be configured with your choice of Intel silicon including Celeron, or Core i3, i5, or a choice of 10 or 12-core i7 processors. As with other SBCs we've seen from Aaeon and others, the processors aren't socketed so you won't be upgrading later. This device is pretty much aimed at embedded and industrial use, mind. All five SKUs are powered by Intel's current-gen Alder Lake mobile processor family, including a somewhat unusual 5-core Celeron processor that pairs a single performance core with four efficiency cores. However, only the i5 and i7 SKUs come equipped with Intel's Iris Xe integrated graphics. The i3 and Celeron are stuck on UHD graphics. The board can be equipped with up to 64GB of DDR5 memory operating at up to 4800 megatransfers/sec by way of a pair of SODIMM modules.

For I/O the board features a nice set of connectivity including a pair of NICs operating at 2.5 Gbit/sec and 1 Gbit/sec, HDMI 2.1 and Display Port 1.4, three 10Gbit/sec-capable USB 3.2 Gen 2 ports, and a single USB-C port that supports up to 15W of power delivery and display out. For those looking for additional connectivity for their embedded applications, the system also features a plethora of pin headers for USB 2.0, display out, serial interfaces, and 8-bit GPIO. Storage is provided by your choice of a SATA 3.0 interface or a m.2 mSATA/NVMe SSD. Unlike Aaeon's Epic-TGH7 announced last month, the GENE-ADP6 is too small to accommodate a standard PCIe slot, but does feature a FPC connector, which the company says supports additional NVMe storage or external graphics by way of a 4x PCIe 4.0 interface.

The state of Virginia has over a third of America's hyperscale datacenter capacity, and this amounts to more than the entire capacity of China or the whole of Europe, highlighting just how much infrastructure is concentrated along the so-called Datacenter Alley. The Register reports: These figures come from Synergy Research Group, which said that the US accounts for 53 percent of global hyperscale datacenter capacity, as measured by critical IT load, at the end of the second quarter of 2022. The remainder is relatively evenly split between China, Europe, and the rest of the world. While few would be surprised at the US accounting for the lion's share of datacenter capacity, the fact that so much is concentrated in one state could raise a few eyebrows, especially when it is centered on a small number of counties in Northern Virginia -- typically Loudoun, Prince William, and Fairfax -- which make up Datacenter Alley.

"Hyperscale operators take a lot of factors into account when deciding where to locate their datacenter infrastructure," said Synergy chief analyst John Dinsdale. "This includes availability of suitable real estate, cost and availability of power supply options, proximity to customers, the risk of natural disasters, local incentives and approvals processes, the ease of doing business and internal business dynamics, and this has inevitably led to some hyperscale hot spots." Amazon in particular locates a large amount of its datacenter infrastructure in Northern Virginia, with Microsoft, Facebook, Google, ByteDance, and others also having a major presence, according to Synergy. The big three cloud providers -- Amazon, Microsoft and Google -- have the broadest hyperscale bit barn footprint, with each of these having over 130 datacenters of the 800 or so around the globe. When measured in datacenter capacity, the leading companies are Amazon, Google, Microsoft, Facebook, Alibaba and Tencent, according to Synergy.

An anonymous reader quotes a report from New Scientist: A nuclear fusion reaction has lasted for 30 seconds at temperatures in excess of 100 million degrees celsius. While the duration and temperature alone aren't records, the simultaneous achievement of heat and stability brings us a step closer to a viable fusion reactor -- as long as the technique used can be scaled up. [...] Now Yong-Su Na at Seoul National University in South Korea and his colleagues have succeeded in running a reaction at the extremely high temperatures that will be required for a viable reactor, and keeping the hot, ionized state of matter that is created within the device stable for 30 seconds.

Controlling this so-called plasma is vital. If it touches the walls of the reactor, it rapidly cools, stifling the reaction and causing significant damage to the chamber that holds it. Researchers normally use various shapes of magnetic fields to contain the plasma -- some use an edge transport barrier (ETB), which sculpts plasma with a sharp cut-off in pressure near to the reactor wall, a state that stops heat and plasma escaping. Others use an internal transport barrier (ITB) that creates higher pressure nearer the center of the plasma. But both can create instability. Na's team used a modified ITB technique at the Korea Superconducting Tokamak Advanced Research (KSTAR) device, achieving a much lower plasma density. Their approach seems to boost temperatures at the core of the plasma and lower them at the edge, which will probably extend the lifespan of reactor components.

Dominic Power at Imperial College London says that to increase the energy produced by a reactor, you can make plasma really hot, make it really dense or increase confinement time. "This team is finding that the density confinement is actually a bit lower than traditional operating modes, which is not necessarily a bad thing, because it's compensated for by higher temperatures in the core," he says. "It's definitely exciting, but there's a big uncertainty about how well our understanding of the physics scales to larger devices. So something like ITER is going to be much bigger than KSTAR". Na says that low density was key, and that "fast" or more energetic ions at the core of the plasma -- so-called fast-ion-regulated enhancement (FIRE) -- are integral to stability. But the team doesn't yet fully understand the mechanisms involved. The reaction was stopped after 30 seconds only because of limitations with hardware, and longer periods should be possible in future. KSTAR has now shut down for upgrades, with carbon components on the wall of the reactor being replaced with tungsten, which Na says will improve the reproducibility of experiments. The research has been published in the journal Nature.

A timely mobile alert may have prevented hundreds of thousands of Californians from being plunged into darkness in the middle of a heat wave Tuesday night. Bloomberg reports: Just before 5:30 p.m. local time, California's grid operator ordered its highest level of emergency, warning that blackouts were imminent. Then, at 5:48 p.m., the state's Office of Emergency Services sent out a text alert to people in targeted counties, asking them to conserve power if they could. Within five minutes the grid emergency was all but over. Power demand plunged by 1.2 gigawatts between 5:50 and 5:55 p.m., and would continue to drop in the hours after that, according to data from the California Independent System Operator. A gigawatt is enough to power about 750,000 Californian homes.

But while the state's grid operator said California had avoided rolling blackouts Tuesday, some cities apparently didn't get the message. Officials in three San Francisco Bay area cities -- Alameda, Healdsburg and Palo Alto -- reported on social media that power shutdowns were underway that evening, which also could have contributed to the sharp decline in demand. By 8 p.m., the grid operator canceled the highest level of emergency without calling for power cuts. More than 500,000 homes and businesses had been warned earlier in the day that they might lose service.

Apple today announced that all iPhone 14 models sold in the U.S. do not have a built-in SIM card tray and instead rely entirely on eSIM technology. MacRumors reports: Tech specs on Apple's website confirm the iPhone 14, iPhone 14 Plus, iPhone 14 Pro, and iPhone 14 Pro Max are not compatible with physical SIM cards and instead have dual eSIM support, allowing for multiple cellular plans to be activated on a single device. An eSIM is a digital SIM that allows users to activate a cellular plan without having to use a physical nano-SIM card. eSIM availability is rapidly expanding, but the technology is still not available in all countries, which explains why iPhone 14 models will remain available with a SIM card tray outside of the U.S. for now. Apple's website has a list of carriers that support eSIM technology around the world. In the U.S., this includes AT&T, T-Mobile, US Cellular, Verizon, Xfinity Mobile, Boost Mobile, H2O Wireless, Straight Talk, C Spire, and some others.