According to Bloomberg's Mark Gurman, Apple is already working on an M3 iMac, along with refreshed MacBooks and a Mac Mini running an M1 Pro chip. He also said the iMac Pro isn't dead, though it's not expected to arrive "anytime soon." From the report: Add an M3-based iMac to your list of future models. Last week, I detailed Apple's road map for the M2 chip and Mac. The plans include: An M2 chip for a new MacBook Air, entry-level MacBook Pro and Mac mini; M2 Pro and M2 Max chips for a new 14-inch MacBook Pro and 16-inch MacBook Pro; and A dual M2 Ultra chip for the Mac Pro.

Since then, I've heard that the M2 chips aren't the only ones in testing within Apple. And if you're waiting for a new iMac, I'm hearing an M3 version of that desktop is already in the works -- though I imagine it won't launch until the end of next year at the earliest. Also, for those asking, I still think an iMac Pro is coming. It just won't be anytime soon. Gurman also wrote about what we can expect to see with the iPhone 14. "First off, the overall design from the iPhone 12 and iPhone 13 will stick around another year. [...] There will also be larger camera bumps to fit in new sensors."

"That notch will include a pill-shaped cutout for Face ID and a circular cutout for the camera," adds Gurman. "That will be Apple's solution until it's able to fully embed Face ID and the front-facing camera into the display itself. That's still at least three or four years away." There's also going to be a slight shake-up with the iPhone's screen sizes, with the non-Pro iPhone line getting a 6.7-inch screen option.

Interestingly, the company is "still working on bringing satellite connectivity to the iPhone" to gain the ability to make calls over satellite networks. "The company first aimed at adding the feature in last year's model, but now the capability could be ready this time around," wrote Gurman.

Tesla confirmed that nearly half of all its vehicles produced last quarter are already using cobalt-free iron-phosphate (LFP) batteries. Electrek reports: Over the last few years, CEO Elon Musk has said multiple times that Tesla plans to shift more electric cars to LFP batteries in order to overcome nickel and cobalt supply concerns. Iron phosphate (LFP) batteries, which don't use nickel or cobalt, are traditionally cheaper and safer, but they offer less energy density, which means less efficient and shorter range for electric vehicles. However, they have improved enough recently that it now makes sense to use cobalt-free batteries in lower-end and shorter-range vehicles. It also frees up the production of battery cells with other, more energy-dense chemistries to produce more longer-range vehicles.

Tesla already moved its Standard Range Model 3 and Model Y produced in China to LFP cells. Last year, Tesla also announced it is "shifting to Lithium Iron Phosphate (LFP) battery chemistry globally" for "standard range vehicles." It confirmed that the automaker planned to switch the Model 3 Standard Range, also known as Model 3 Rear-Wheel-Drive, being produced in the Fremont factory to LFP cells, too.

Now with the release of Tesla's Q1 2022 financial results, Tesla confirmed that nearly half of all vehicles produced are now using LFP batteries: "Diversification of battery chemistries is critical for long-term capacity growth, to better optimize our products for their various use cases and expand our supplier base. This is why nearly half of Tesla vehicles produced in Q1 were equipped with a lithium iron phosphate (LFP) battery, containing no nickel or cobalt. Currently, LFP batteries are used in most of our standard range vehicle products, as well as commercial energy storage applications. As a result of our energy efficient motors, a Model 3 with an LFP battery pack can still achieve a 267-mile EPA range." This would mean that roughly half of Tesla's volume comes from Model 3 Rear-Wheel-Drive, the cheapest Tesla vehicle, and the Model Y Standard Range, which is only offered in China.

"As housing prices across the country continue to skyrocket, an Iowa-based company, Alquist 3D, is looking to combat the crisis by 3D-printing homes," reports NexStar Media: Alquist, one of a few U.S. companies that 3D-prints houses, is looking to build 200 of these homes in Virginia starting this summer.

The process is somewhat simple. First, a person designs what they want the frame of the house to look like by using a computer program. Then, a file is transmitted to a machine, which tells it what to do and how to move. On-site workers pour in cement material, then the concrete is pumped through the tubes and dispersed in layers...

Zachary Mannheimer, founder and CEO of Alquist 3D, believes 3D-printing is a game changer because it cuts costs up to 15% by scaling back labor, materials, and time. He does understand that there are concerns about displacing traditional construction jobs, and some environmental impacts of this method, but he says he is working to attack those issues.

Solar and wind power are "intermittent," points out Slashdot reader silverjacket . "A feature in this week's issue of The New Yorker highlights current efforts to use gravity, heat, momentum, air pressure, and other methods to store large amounts of energy for the electricity grid."

In other words, alternatives to massive lithium-ion batteries: Quidnet [has] patented a new kind of pumped hydro. Instead of pumping water uphill, the company's system sends it underground through a pipe reaching at least a thousand feet down. Later, the system lets the Earth squeeze the water back up under pressure, using it to drive generators. Wright and Craig are veterans of the oil and gas industry, and Quidnet's technology is like a green riff on fracking.... Initially, Quidnet encountered skepticism about its ability to form lenses of the right size and shape. By the time I visited, however, it had successfully completed multiple pumping cycles in Texas, Ohio, and Alberta. The company has received thirty-eight million dollars in private and government funding, including contributions from Breakthrough Energy Ventures, established by Bill Gates.
The New Yorker science/technology writer also interviewed Bill Gross, a longtime investor in solar power and a co-founder of his own energy-storage company called Energy Vault. He points an inconvenient truth: "it actually costs more to store electricity than to make it." In many cases, solar and wind have become less expensive than coal and gas. But add the cost of storage, and renewables can lose to fossil fuels.
But he's working on his own solution... Energy Vault's first attempt at a system was EV1, a looming, Transformer-like tower crane with six arms. The idea was that such a crane would stack blocks in a wall around itself, then unstack them.... [T]he company moved on to a new, enclosed design, called EVx. In renderings, it resembles a boxy automated warehouse forty stories tall. Elevators will use clean power to lift blocks weighing as much as thirty tons and put them on trolleys, which will move them toward the middle of the structure. When energy is needed, the blocks will be moved back to the elevators. As they descend, the elevators will power generators, producing new electricity... The EVx demo is being developed in a bucolic Swiss mountain valley in the shadow of EV1...

[T]he company isn't alone in pursuing what's known as "gravity storage." Gravitricity, based in Scotland, recently concluded a demonstration that involved hefting a fifty-ton block up a tower, two stories at a time; it now plans to raise and lower single, thousand-ton blocks inside disused mine shafts. Two other companies, Gravity Power, in California, and Gravity Storage GmbH, in Hamburg, aim to place a massive weight at the bottom of a shaft and then pump water underneath to lift it. To withdraw energy, they'll let the weight push the water down into a pipe and through a turbine. RheEnergise, based in Montreal, has come up with yet another take on pumped hydro, centered on a fluid that the company invented called R-19, which is two and a half times as dense as water; its system will move the fluid between tanks at the top and bottom of an incline. The work is still at the crowdfunding stage.

Just as you can store potential energy by lifting a block in the air, you can store it thermally, by heating things up. Companies are banking heat in molten salt, volcanic rocks, and other materials. Giant batteries, based on renewable chemical processes, are also workable. In so-called flow batteries, tanks can be used to manage electrolytes, which hold a charge. In hydrogen storage, electrolysis is used to separate hydrogen from oxygen in water; the hydrogen is then cached underground, or in aboveground tanks, as gas or liquid or part of ammonia. When it's recombined with oxygen in a fuel cell, it forms water again and releases electricity.
The article's last line? "Nature can help us generate power. Maybe it can help us hold on to it, too."

The governor of Michigan has announced America's first "public wireless in-road charging system," which would allow electric vehicles (EV) to charge — both while in motion and when stationary.

The GreenBiz site takes a look at this "inductive vehicle charging pilot program." There's perhaps no place more fitting for this pilot than Detroit. The city that led the nation's first wave of automobile technology is helping lead its second, as the Michigan Department of Transportation has awarded a $1.9 million contract to Electreon to install one mile of in-road EV charging in Motor City.

"Wireless is the future for this technology," said Stefan Tongur, vice president of business development for Electreon in the U.S. The wireless charging company is already building out the tech across Europe, where it has pilots in Germany, Italy and Sweden. The Michigan project is expected to be operational in 2023.

"We've always, for the past century, stopped to fuel the car, and we're thinking the same with EVs," Tongur said. But that creates many challenges when it comes to large-scale batteries and fleets especially, Tongur noted... So Electreon and others envision a network of strategic corridors with wireless, in-road charging that could gradually power vehicles along a route, rather than all at once at the destination. Fleet operators could either pay a subscription to use the chargers or integrate the costs into highway tolling, depending on the situation, Tongur said.

He described Electreon's business model as "charging as a service."
Alex Gruzen, CEO of wireless charging company WiTricity, tells the site this technology ultimately could accelerate the adoption of electric vehicles. "The company's own research indicates that wireless charging can increase a consumer's intent to purchase an EV by 68%, according to Gruzen, which could help move EVs beyond the early adopter stage."

Or, as Gruzen puts it, "What we want to do is show that the EV ownership experience can be better than any experience you've ever had with a car before."

Thanks to Slashdot reader doyouwantahotpocket for submitting the story.

"The U.S. is spending millions to explore a surprising source of untapped power," reports Recode, describing a new pilot program from America's Department of Energy" Geothermal energy works on a simple premise: The Earth's core is hot, and by drilling even just a few miles underground, we can tap into that practically unlimited heat source to generate energy for our homes and businesses without creating nearly as many of the greenhouse gas emissions that come from burning fossil fuels. However, drilling doesn't come cheap — it accounts for half the cost of most geothermal energy projects — and requires specialized labor to map the subsurface, drill into the ground, and install the infrastructure needed to bring energy to the surface.

But the US, in the wake of an oil and gas boom, just so happens to have millions of oil and gas wells sitting abandoned across the country. And oil and gas wells, it turns out, happen to share many of the same characteristics as geothermal wells — namely that they are deep holes in the ground, with pipes that can bring fluids up to the surface. So, the DOE asks, why not repurpose them?

That's exactly what the agency's pilot program, called Wells of Opportunity: ReAmplify, aims to do, awarding a total of $8.4 million to four projects across the country that will each try to tap into some of those old wells to extract geothermal energy rather than gas or oil. If they work, they could be the key to not only reducing the country's use of planet-damaging fossil fuels, but also helping answer the question of how to transition many of the more than 125,000 people who work in oil and gas extraction across the country into clean-energy jobs....

[T]he next year or so will be spent on planning and assessing the feasibility of turning oil wells into geothermal resources, after which energy generation will slowly ramp up. The biggest question is just how scalable these ideas are: One megawatt is, after all, a pittance compared to the country's energy needs.
"Some European countries already rely on direct use of geothermal energy on a large scale," the article points out.

Volcanically-active Iceland, for example, "uses its vast reserves of geothermal energy to heat 90 percent of its homes."

Thanks to Slashdot reader fahrbot-bot for submitting the story

The Associated Press files this report from Chernobyl, where invading tanks in February "churned up highly contaminated soil from the site of the 1986 accident that was the world's worst nuclear disaster..."

"Here in the dirt of one of the world's most radioactive places, Russian soldiers dug trenches. Ukrainian officials worry they were, in effect, digging their own graves." For more than a month, some Russian soldiers bunked in the earth within sight of the massive structure built to contain radiation from the damaged Chernobyl nuclear reactor. A close inspection of their trenches was impossible because even walking on the dirt is discouraged.... Maksym Shevchuck, the deputy head of the state agency managing the exclusion zone, believes hundreds or thousands of soldiers damaged their health, likely with little idea of the consequences, despite plant workers' warnings to their commanders. "Most of the soldiers were around 20 years old," he said....

The full extent of Russia's activities in the Chernobyl exclusion zone is still unknown, especially because the troops scattered mines that the Ukrainian military is still searching for. Some have detonated, further disturbing the radioactive ground. The Russians also set several forest fires, which have been put out.

Ukrainian authorities can't monitor radiation levels across the zone because Russian soldiers stole the main server for the system, severing the connection on March 2. The International Atomic Energy Agency said Saturday it still wasn't receiving remote data from its monitoring systems. The Russians even took Chernobyl staffers' personal radiation monitors....

When the Russians hurriedly departed March 31 as part of a withdrawal from the region that left behind scorched tanks and traumatized communities, they took more than 150 Ukrainian national guard members into Belarus. Shevchuck fears they're now in Russia. In their rush, the Russians gave nuclear plant managers a choice: Sign a document saying the soldiers had protected the site and there were no complaints, or be taken into Belarus. The managers signed.
The article includes more stories from Chernobyl's staff: Even now, weeks after the Russians left, "I need to calm down," the plant's main security engineer, Valerii Semenov, told The Associated Press. He worked 35 days straight, sleeping only three hours a night, rationing cigarettes and staying on even after the Russians allowed a shift change. "I was afraid they would install something and damage the system," he said in an interview....

Another Ukrainian nuclear plant, at Zaporizhzhia in southeastern Ukraine, remains under Russian control. It is the largest in Europe.
Long-time Slashdot reader MattSparkes also notes reports that researchers at Chernobyl "had been looking for bacteria to eat radioactive waste — but they now fear that their work was irreparably lost during the Russian invasion of the facility."

New Scientist reports (in a pay-walled article) that scientist Olena Pareniuk "was attempting to identify bacteria that could consume radioactive waste within Chernobyl's destroyed reactor before the Russian invasion. If her samples are lost it will likely be impossible to replace them."

If you ranked all U.S. companies by annual revenue, Occidental Petroleum comes in at #183.

But Wednesday this massive "hydrocarbon exploration" company "outlined plans to advance its clean energy transition business," reports Reuters, "including spending between $800 million and $1 billion on a facility to remove carbon dioxide (CO2) from the air." The proposed facility, the world's largest direct air capture (DAC) project, is set to begin construction in the second half of this year in the Permian basin, the largest U.S. oilfield, with a start in 2024. The U.S. oil and gas producer is aiming to build a profitable business from providing services and technologies that pull CO2 out of the air and burying it underground to advance government and business climate mitigation goals. This year's investments in the low carbon business will total $275 million, and the company plans to develop over time three carbon sequestration hubs that will be online by 2025 and another 69 smaller DAC facilities by 2035, it told investors....

Occidental's first DAC facility has a goal of removing 1 million tonnes of CO2 from the atmosphere per year — 100 times bigger than all 19 DAC plants currently operating worldwide combined, according to the International Energy Agency.

"There's just not going to be enough other alternatives for CO2 offsets," said Occidental Chief Executive Vicki Hollub. "So this is a sure opportunity." Executives did not say when they expect the business to turn a profit. DAC is currently not commercial on a large scale. "We expect that to play out over the next five to 10 years as we develop plants," Richard Jackson, Occidental's head of U.S. onshore resources and carbon management operations, told Reuters by phone. "The commerciality of those plants will be determined by mainly the market".
Last month Occidental announced that Airbus had already pre-purchased "400,000 tonnes of carbon removal credits from [Occidental's] planned first Direct Air Capture facility," specifically, "the capture and permanent sequestration of 100,000 tonnes of CO2 from the atmosphere each year for four years — with an option to secure more volume in the future."

Occidental called the deal "indicative of the availability of a feasible, affordable, and scalable decarbonization solution for aviation and other hard-to-abate industries."

The U.S. government "is launching a $6 billion effort to rescue nuclear power plants at risk of closing," reports the Associated Press, "citing the need to continue nuclear energy as a carbon-free source of power that helps to combat climate change." A certification and bidding process opened Tuesday for a civil nuclear credit program that is intended to bail out financially distressed owners or operators of nuclear power reactors, the U.S. Department of Energy told The Associated Press exclusively, shortly before the official announcement. It's the largest federal investment in saving financially distressed nuclear reactors... "U.S. nuclear power plants contribute more than half of our carbon-free electricity, and President Biden is committed to keeping these plants active to reach our clean energy goals," Energy Secretary Jennifer Granholm said in a statement. "We're using every tool available to get this country powered by clean energy by 2035, and that includes prioritizing our existing nuclear fleet to allow for continued emissions-free electricity generation and economic stability for the communities leading this important work...."

A dozen U.S. commercial nuclear power reactors have closed in the past decade before their licenses expired, largely due to competition from cheaper natural gas, massive operating losses due to low electricity prices and escalating costs, or the cost of major repairs. This has led to a rise in emissions in those regions, poorer air quality and the loss of thousands of high-paying jobs, dealing an economic blow to local communities, according to the Department of Energy. A quarter or more of the fleet is at risk, the Department of Energy added. The owners of seven currently operating reactors have already announced plans to retire them through 2025.... Twenty more reactors faced closure in the last decade before states stepped in to save them, according to the Nuclear Energy Institute , the industry's trade association.... Low electricity prices are the main cause of this trend, though federal and state policies to boost wind and solar have contributed as well, the NEI added.

There are 55 commercial nuclear power plants with 93 nuclear reactors in 28 U.S. states. Nuclear power already provides about 20% of electricity in the U.S., or about half the nation's carbon-free energy. If reactors do close before their licenses expire, fossil fuel plants will likely fill the void and emissions will increase, which would be a substantial setback, said Andrew Griffith, acting assistant secretary for nuclear energy at DOE. While natural gas may be cheaper, nuclear power hasn't been given credit for its carbon-free contribution to the grid and that has caused nuclear plants to struggle financially, Griffith added....

David Schlissel, at the Ohio-based Institute for Energy Economics and Financial Analysis, said he wishes the federal government, before it allocated the $6 billion, had analyzed whether that money might have been better spent on ramping up renewables, battery storage and energy efficiency projects, which can be done quickly and cheaply to displace fossil fuels.

A major industrial conglomerate has resorted to buying washing machines and tearing out the semiconductors inside for use in its own chip modules, according to the CEO of a company central to the chipmaking supply chain. From a report: ASML's Chief Executive Officer Peter Wennink remarked on the situation, without naming the conglomerate, during his company's earnings call Wednesday. The beleaguered firm relayed its struggle to him only the prior week, he said, signalling that chip shortages are going to persist for the foreseeable future, at least for some sectors. "The demand we are currently seeing comes from so many places in the industry," Wennink said, pointing to the wider adoption of Internet of Things (IoT) applications. "It's so widespread. We have significantly underestimated the width of the demand. That, I don't think, is going to go away." Even major chip equipment makers including US-based Lam Research are struggling to get enough components to fulfil orders, potentially making it more difficult for semiconductor fabs to significantly increase their capacity in the near term.

Rolls-Royce is to start building parts for its small modular nuclear reactors in anticipation of receiving regulatory approval from the British government by 2024, one of its directors has said. The Guardian reports: Paul Stein, the chairman of Rolls-Royce SMR, a subsidiary of the FTSE 100 engineering company, said he hoped to be providing power to the UK's national grid by 2029. Speaking to Reuters in an interview conducted virtually, Stein said the regulatory "process has been kicked off, and will likely be complete in the middle of 2024. We are trying to work with the UK government, and others to get going now placing orders, so we can get power on grid by 2029."

Small modular reactors (SMRs) are seen by their proponents as a way to build nuclear power plants in factories, a method that could be cheaper and quicker than traditional designs. The technology, based on the reactors used in nuclear submarines, is seen by Rolls-Royce as a potential earner far beyond any previous business such as jet engines or diesel motors. The government under Boris Johnson put nuclear power at the centre of its energy strategy announced earlier this month, in response to climate concerns and a desire to ditch Russian gas. SMRs are expected to play an important role in an expansion of nuclear to supply a quarter of the UK's energy needs. Lower costs would be crucial in justifying the nuclear push, given that onshore wind is seen as much cheaper and quicker to install.

For nearly two years, netting a PS5, Xbox Series X, or AMD Radeon and Nvidia RTX graphics cards without paying a fortune has been a matter of luck (or a lot of skill). At its peak, scalpers were successfully charging double or even triple MSRP for a modern GPU. But it's looking like the great GPU shortage is nearly over. From a report: In January, sites including Tom's Hardware reported that prices were finally beginning to drop, and drop they did; they've now dropped an average of 30 percent in the three months since. On eBay, the most popular graphics cards are only commanding a street price of $200-$300 over MSRP. And while that might still seem like a lot, some have fallen further: used Nvidia RTX 3080 Ti or AMD RX 6900 XT are currently fetching less than their original asking price, a sure sign that sanity is returning to the marketplace.

Just as importantly, some graphics cards are actually staying in stock at retailers when their prices are too high -- again, something that sounds perfectly normal but that we haven't seen in a while. For many months, boutiques like my local retailer Central Computers could only afford to sell you a GPU as part of a big PC bundle, but now it's making every card available on its own. GameStop is selling a Radeon RX 6600 for just $10 over MSRP, and it hasn't yet sold out. Newegg has also continually been offering an RTX 3080 Ti for just $10 over MSRP (after rebate, too) -- even if $1,200 still seems high for that card's level of performance.

An anonymous reader quotes a report from Protocol: Add Amazon to the long list of companies looking to build a more immersive future: The ecommerce giant has been looking to hire a number of people for an unannounced AR/VR product in recent months. Among the roles Amazon is looking to fill are a wide variety of senior positions for computer vision scientists, designers, program managers, product managers, researchers and technologists, suggesting that the company is looking to build out a substantive team. "You will develop an advanced XR research concept into a magical and useful new-to-world consumer product," one of the job listings reads, using the industry shorthand for extended reality, which can encompass both AR and VR. Another job listing describes the initiative related to "XR/AR devices," and states that eventual hires will be part of "a greenfield development effort" that will include "developing code for early prototypes through mass production."

Amazon is looking to hire a UX designer to work on "the core system interface along with end-user applications spanning from multi-modal interfaces to 3D AR entertainment experiences," and suggest that applicants should have the ability to "think spatially, with 3D design experience in motion design, animation [and] AR/VR, games," among other things. Applicants for a senior product manager position are told they should have "experience building deeply technical products, e.g. AI/ML, robotics, games." [...] Interestingly, a number of the job listings describe the project as related to a "magical and useful, new-to-world XR consumer product," suggesting it may be looking to establish a new product category. Others even describe it as a "a new-to-world smart-home product."

A writer for The Drive reports that "Recently, I noticed a part that I made for my Honda Accord was removed from Printables, the newly rebranded 3D printing repository offered by Prusa.

"There seemed to be no rhyme or reason for it, but I didn't think anything else about it...until reports of a mass deletion started popping up on Reddit." All models referencing the word "Honda" posted prior to March 30, 2022, were seemingly removed from Printables without warning. These included speaker brackets, key housings, hood latches, shifter bushings, washer fluid caps, roof latch handles, and my trunk lid handle — a part not offered on 10th generation Accords sold in the U.S. at all. In fact, many of the removed parts had no Honda branding but were just compatible with Honda vehicles. As it turns out, Prusa says it was issued a takedown notice from Honda and removed all 3D models that referenced the brand.

"I can confirm to you that we have received a letter from a lawyer representing Honda, informing us that we were required to remove any model which used 'Honda' in the listing, the model itself, or one of several trademarks/logos also associated with Honda," a Prusa spokesperson told The Drive in an email. "This will also be related to the naming of the files it self (sic), as for Honda this would be considered as a violation of their trademark/patents." A Prusa employee responded to a post on the company's forums, noting that Honda sent a "huge legal document" that covered every model that the company wished to have deleted. The document reportedly included items that did not have Honda logos, but also specific items with certain shapes and dimensions — like a washer fluid reservoir cap, for example.

A response from another employee was posted suggesting other sites that host 3D models were also sent a similar takedown notice.

A headline at Hot Hardware calls it "a sexy Linux laptop with deep learning chops... being pitched as the world's most powerful laptop for machine learning workloads."

And here's how Ars Technica describes the Razer x Lambda Tensorbook (announced Tuesday): Made in collaboration with Lambda, the Linux-based clamshell focuses on deep-learning development. Lambda, which has been around since 2012, is a deep-learning infrastructure provider used by the US Department of Defense and "97 percent of the top research universities in the US," according to the company's announcement. Lambda's offerings include GPU clusters, servers, workstations, and cloud instances that train neural networks for various use cases, including self-driving cars, cancer detection, and drug discovery.

Dubbed "The Deep Learning Laptop," the Tensorbook has an Nvidia RTX 3080 Max-Q (16GB) and targets machine-learning engineers, especially those who lack a laptop with a discrete GPU and thus have to share a remote machine's resources, which negatively affects development.... "When you're stuck SSHing into a remote server, you don't have any of your local data or code and even have a hard time demoing your model to colleagues," Lambda co-founder and CEO Stephen Balaban said in a statement, noting that the laptop comes with PyTorch and TensorFlow for quickly training and demoing models from a local GUI interface without SSH. Lambda isn't a laptop maker, so it recruited Razer to build the machine....

While there are more powerful laptops available, the Tensorbook stands out because of its software package and Ubuntu Linux 20.04 LTS.
The Verge writes: While Razer currently offers faster CPU, GPU and screens in today's Blade lineup, it's not necessarily a bad deal if you love the design, considering how pricey Razer's laptops can be. But we've generally found that Razer's thin machines run quite hot in our reviews, and the Blade in question was no exception even with a quarter of the memory and a less powerful RTX 3060 GPU. Lambda's FAQ page does not address heat as of today.

Lambda is clearly aiming this one at prospective MacBook Pro buyers, and I don't just say that because of the silver tones. The primary hardware comparison the company touts is a 4x speedup over Apple's M1 Max in a 16-inch MacBook Pro when running TensorFlow.
Specifically, Lambda's web site claims the new laptop "delivers model training performance up to 4x faster than Apple's M1 Max, and up to 10x faster than Google Colab instances." And it credits this to the laptop's use of NVIDIA's GeForce RTX 3080 Max-Q 16GB GPU, adding that NVIDIA GPUs "are the industry standard for parallel processing, ensuring leading performance and compatibility with all machine learning frameworks and tools."

"It looks like a fine package and machine, but pricing starts at $3,499," notes Hot Hardware, adding "There's a $500 up-charge to have it configured to dual-boot Windows 10."

The Verge speculates on what this might portend for the future. "Perhaps the recently renewed interest in Linux gaming, driven by the Steam Deck, will push Razer to consider Linux for its own core products as well."

Earlier this week the Voice of America news service shared a story that begins with exclusive photos from a nuclear lab "from which a Ukrainian official says Russian troops stole radioactive material that could be harmful if mishandled...." It is housed in a building run by a state agency managing the exclusion zone around Chernobyl's nearby decommissioned nuclear power plant, where a 1986 explosion caused the world's worst nuclear accident. The director of the agency, Evgen Kramarenko, provided the laboratory photos to VOA, saying he took them on an April 5 visit, five days after Russian troops withdrew from Chernobyl....

"We have a laboratory that had a big quantity of radioactive instruments that are used to calibrate our radiation dosimeters," Kramarenko told VOA. A dosimeter is a safety device, typically worn by individuals as a badge, that measures exposure to ionizing radiation, including nuclear radiation. The agency's dosimeters are calibrated using small metallic containers of radioactive material made by Ukrainian state enterprise USIE Izotop, which displays a photo of them on its website.

"Most of those calibration instruments were stolen. They look like coins. If the Russian soldiers carry them around, it's very dangerous for them," Kramarenko said....

In a Saturday Facebook post, Kramarenko's agency said occupying Russian troops stole samples of fuel-containing materials from the lab in addition to the radioactive calibration instruments. The agency said it was possible that the Russians threw away the items elsewhere in Chernobyl's exclusion zone, but that a likelier scenario is that they kept items as "souvenirs."

An anonymous reader quotes a report from Bloomberg: California, which aims to have a carbon-free power grid within 25 years, got a short glimpse of that possibility earlier this month. The state's main grid ran on more than 97% renewable energy at 3:39 p.m. on Sunday April 3, breaking a previous record of 96.4% that was set just a week earlier, the California Independent System Operator said Thursday in a statement. While these all-time highs are for a brief time, they solidly demonstrate the advances being made to reliably achieve California's clean energy goals," said California ISO CEO Elliot Mainzer said in the statement.

Power production from the sun and wind typically peak in the spring, due to mild temperatures and the angle of the sun allowing for an extended period of strong solar production, the grid operator said. While hitting the new renewable record is remarkable, the state has found itself scrambling for power supplies during the past two summers as it has added more intermittent sources and retired natural-gas plants for environmental reasons. California has set a target to have a zero-carbon power system by 2045.

An anonymous reader quotes a report from MIT News: Engineers at MIT and the National Renewable Energy Laboratory (NREL) have designed a heat engine with no moving parts. Their new demonstrations show that it converts heat to electricity with over 40 percent efficiency -- a performance better than that of traditional steam turbines. The heat engine is a thermophotovoltaic (TPV) cell, similar to a solar panel's photovoltaic cells, that passively captures high-energy photons from a white-hot heat source and converts them into electricity. The team's design can generate electricity from a heat source of between 1,900 to 2,400 degrees Celsius, or up to about 4,300 degrees Fahrenheit.

The researchers plan to incorporate the TPV cell into a grid-scale thermal battery. The system would absorb excess energy from renewable sources such as the sun and store that energy in heavily insulated banks of hot graphite. When the energy is needed, such as on overcast days, TPV cells would convert the heat into electricity, and dispatch the energy to a power grid. With the new TPV cell, the team has now successfully demonstrated the main parts of the system in separate, small-scale experiments. They are working to integrate the parts to demonstrate a fully operational system. From there, they hope to scale up the system to replace fossil-fuel-driven power plants and enable a fully decarbonized power grid, supplied entirely by renewable energy. The researchers published their findings in the journal Nature.

An anonymous reader quotes a report from NPR: On March 29, wind turbines produced more electricity than coal and nuclear, the U.S. Energy Information Administration, an agency that collects energy statistics for the government, says. In the past, wind-powered electricity has gone beyond coal and nuclear on separate days, but this was the first time wind surpassed both on the same day. Natural gas is still the largest source of electricity generation in the country.

The EIA notes that in the spring and fall months, nuclear and coal generators reduce their output because demand tends to be lower, which could contribute to why wind turbines produced more electricity that day. But wind taking the No. 2 spot may be short-lived. The agency says electricity generation from wind on a monthly basis has been lower than natural gas, coal and nuclear generation. According to EIA projections, wind is not expected to surpass any other method in any month of 2022 or 2023.

sciencehabit shares a report from Science.org: How do you bottle renewable energy for when the Sun doesn't shine and the wind won't blow? That's one of the most vexing questions standing in the way of a greener electrical grid. Massive battery banks are one answer. But they're expensive and best at storing energy for a few hours, not for days long stretches of cloudy weather or calm. Another strategy is to use surplus energy to heat a large mass of material to ultrahigh temperatures, then tap the energy as needed. This week, researchers report a major improvement in a key part of that scheme: a device for turning the stored heat back into electricity.

A team at the Massachusetts Institute of Technology (MIT) and the National Renewable Energy Laboratory achieved a nearly 30% jump in the efficiency of a thermophotovoltaic (TPV), a semiconductor structure that converts photons emitted from a heat source to electricity, just as a solar cell transforms sunlight into power. "This is very exciting stuff," says Andrej Lenert, a materials engineer at the University of Michigan, Ann Arbor. "This is the first time [TPVs have] gotten into really promising efficiency ranges, which is ultimately what matters for a lot of applications." Together with related advances, he and others say, the new work gives a major boost to efforts to roll out thermal batteries on a large scale, as cheap backup for renewable power systems. The idea is to feed surplus wind or solar electricity to a heating element, which boosts the temperature of a liquid metal bath or a graphite block to several thousand degrees. The heat can be turned back into electricity by making steam that drives a turbine, but there are trade-offs. High temperatures raise the conversion efficiency, but turbine materials begin to break down at about 1500C. TPVs offer an alternative: Funnel the stored heat to a metal film or filament, setting it aglow like the tungsten wire in an incandescent light bulb, then use TPVs to absorb the emitted light and turn it to electricity.

For the new device, Asegun Henry, an MIT mechanical engineer, tinkered with both the emitter and the TPV itself. Previous TPV setups heated the emitters to about 1400C, which maximized their brightness in the wavelength range for which TPVs were optimized. Henry aimed to push the temperature 1000C higher, where tungsten emits more photons at higher energies, which could improve the energy conversion. But that meant reworking the TPVs as well. With researchers at the National Renewable Energy Laboratory, Henry's team laid down more than two dozen thin layers of different semiconductors to create two separate cells stacked one on top of another. The top cell absorbs mostly visible and ultraviolet photons, whereas the lower cell absorbs mostly infrared. A thin gold sheet under the bottom cell reflects low-energy photons the TPVs couldn't harvest. The tungsten reabsorbs that energy, preventing it from being lost. The result, the group reports today in Nature, is a TPV tandem that converts 41.1% of the energy emitted from a 2400C tungsten filament to electricity.