An anonymous reader shared this report from the Associated Press: A judge has ordered criminal charges dropped against the final executive accused of lying about problems building two nuclear reactors in South Carolina that were abandoned without generating a watt of power. The judge tossed the charges Wednesday because ratepayers of the utility that lost billions of dollars on the project were improperly allowed on the grand jury that indicted Westinghouse Electric Co. executive Jeffrey Benjamin. But federal judge Mary Geiger Lewis also ruled that nothing is stopping prosecutors from properly seeking another indictment. "We're not going away," said assistant U.S. Attorney Winston Holliday, who said prosecutors are still reviewing the ruling to decide their next steps...

The project fell apart in 2017 after nearly a decade of work, when executives and regulators determined construction of the reactors was so hopelessly behind schedule they could not get nearly $2 billion of tax breaks needed to help pay for the work. SCANA contracted with Westinghouse to build the reactors. Prosecutors said Benjamin , who was in charge of major projects, knew of delays and cost overruns but lied to regulators, utility executives and others. The lies led to electric rate increases while keeping the price of SCANA's stock from plummeting...

Two former SCANA executives have been sentenced to federal prison after pleading guilty to their roles in lying to ratepayers, regulators and investors. Former CEO Kevin Marsh received two years while chief operating officer Stephen Byrne was sentenced to 15 months. Former Westinghouse project director Carl Churchman has pleaded guilty to lying to FBI agents investigating the project's failure and is awaiting sentencing.

Long-time Slashdot reader KindMind shares a report from The Register: Researchers at MIT claim to have found a novel new way to store energy using nothing but cement, a bit of water, and powdered carbon black -- a crystalline form of the element. The materials can be cleverly combined to create supercapacitors, which could in turn be used to build power-storing foundations of houses, roadways that could wirelessly charge vehicles, and serve as the foundation of wind turbines and other renewable energy systems -- all while holding a surprising amount of energy, the team claims. According to a paper published in the Proceedings of the National Academy of Sciences, 45 cubic meters of the carbon-black-doped cement could have enough capacity to store 10 kilowatt-hours of energy -- roughly the amount an average household uses in a day. A block of cement that size would measure about 3.5 meters per side and, depending on the size of the house, the block could theoretically store all the energy an off-grid home using renewables would need." [...]

Just three percent of the mixture has to be carbon black for the hardened cement to act as a supercapacitor, but the researchers found that a 10 percent carbon black mixture appears to be ideal. Beyond that ratio, the cement becomes less stable -- not something you want in a building or foundation. The team notes that non-structural use could allow higher concentrations of carbon black, and thus higher energy storage capacity. The team has only built a tiny one-volt test platform using its carbon black mix, but has plans to scale up to supercapacitors the same size as a 12-volt automobile battery -- and eventually to the 45 cubic meter block. Along with being used for energy storage, the mix could also be used to provide heat -- by applying electricity to the conductive carbon network encased in the cement, MIT noted.
As Science magazine puts it, "Tesla's Powerwall, a boxy, wall-mounted, lithium-ion battery, can power your home for half a day or so. But what if your home was the battery?"

For over a decade, Backblaze's quarterly reports on the annualized failure rates (AFRs) of its substantial hard disk drives inventory have offered a peek into long-term storage utilization. The company, known for its backup and cloud storage services, has now disclosed data for the second quarter of 2023, revealing a fascinating rise in AFRs. ArsTechnica: Today's blog post details data for 240,940 HDDs that Backblaze uses for data storage around the world. There are 31 different models, and Backblaze's Andy Klein, who authored the blog, estimated in an email to Ars Technica that 15 percent of the HDDs in the dataset, including some of the 4, 6, and 8TB drives, are consumer-grade. The dataset doesn't include boot drives, drives in commission for testing purposes, or drive models for which Backblaze didn't have at least 60 units. One of the biggest revelations from examining the drives from April 1, 2023, through June 30, 2023, was an increase in AFR from Q1 2023 (1.54 percent) to Q2 2023 (2.28 percent). Backblaze's Q1 dataset examined 237,278 HDDs across 30 models. Of course, that AFR increase alone isn't enough to warrant any panic.

Since quarterly AFR numbers are "volatile," Klein told Ars Technica, Backblaze further evaluates both quarter-to-quarter and lifetime trends "to see if what happened was an anomaly or something more." So, Klein started digging further by grouping the drives by capacity. This is because, as Klein explained to Ars: "A Backblaze storage vault consists of 1,200 drives of the same size, with 60 drives in 20 storage servers. If we grouped the drives strictly by age and wanted to replace just the oldest drives in a given Backblaze vault, we would only replace those drives in the vault that met the old age criteria, not all the drives. Then, a year from now, we'd do it again, and the year after that, etc. By using the average age by drive size, we can, as appropriate, replace/upgrade all of the drives in a vault at once."

An anonymous reader quotes a report from Ars Technica: Raspberry Pi CEO Eben Upton has been saying for months that 2023 would be a "recovery year" for Raspberry Pi supply -- the single-board computer, once known for its easy availability and affordability, has been hit with supply shortages for years. Hundreds of thousands of Pi boards were still being manufactured every month, but many were going to commercial buyers rather than retailers and end users. More recently, those manufacturing numbers have climbed from 400,000 monthly units to 600,000 to 800,000 to 1 million, a level that Upton says can be sustained "for as long as is necessary to clear our remaining customer backlogs and return to free availability."

We're now seeing very early signs that supply is returning to normal, at least for some Pi models. UK-based Pi reseller Pimoroni announced today that it was lifting some purchase limitations on 2GB and 4GB Raspberry Pi 4 boards and Pi Zero W boards (not, apparently, the more recent Pi Zero 2 W). The rpilocator stock tracker account has also noted that its number of automated stock alerts has decreased recently "because Pis are staying in stock longer," noting that Pimoroni and The Pi Hut had (and still have) multiple Pi 4 variants in stock.

Even as stock returns to normal, we'll still be dealing with the aftereffects of the shortage for some time to come; the "temporary" price increase for the 2GB Pi 4 board still hasn't been reverted, and Upton's past comments have implied that the company has put off the development of the Pi 5 to allow stock of current models to return to normal (the Pi 4 was introduced just over four years ago). Other retailers still have purchasing restrictions in place. And some models and retailers will clearly recover more quickly than others.

A ban on most kinds of traditional bulbs renews a cultural squabble between regulatory efforts to curb energy consumption and the very American impulse to do whatever one wants in one's domicile. The New York Times: The switchboard at Lightbulbs.com, a (pretty self-explanatory) e-commerce website, lit up with panicked callers on Tuesday, who all wanted to know if the news was true. Had the government just banned the sale of incandescent bulbs? Yes, mostly. Was this decision part of an elaborate political plot? No, mostly. Just what were fans of incandescent lighting supposed to do now? EBay, maybe?

Much like its cousin, the gas stove, the humble light bulb has become a flashpoint in a cultural squabble between environmental regulatory efforts and the very American impulse to do whatever one wants in one's domicile. But unlike the gas stove debate, which grew so heated (sorry) that it drew legislation from Republicans hoping to protect the noble but possibly dangerous appliance, the ban on the sale of most incandescent bulbs went quietly into effect on August 1. (The Biden administration denied trying to ban gas stoves.)

The response to the bulb ban was more of a whimper than a battle cry. "Thomas Edison brought the incandescent light bulb to the masses, and in 2023 Joe Biden banned it in America," officials with the Republican Party of New Mexico wrote in a tweet. "The Biden administration's government overreach continues." Other critics were more concerned about the quality of light affecting their quality of life: "I often stay up late at my desk, and the warm glow of the lamp is like company as I read and write. Ugh. There are people in power who are dedicated to sucking all joy out of the world," Joseph Massey, a self-described "not woke" writer, tweeted.

Printer manufacturer Canon is warning that sensitive Wi-Fi settings don't automatically get wiped during resets, so customers should manually delete them before selling, discarding, or getting them repaired to prevent the settings from falling into the wrong hands. From a report: "Sensitive information on the Wi-Fi connection settings stored in the memories of inkjet printers (home and office/large format) may not be deleted by the usual initialization process," company officials wrote in an advisory on Monday. They went on to say that manual wiping should occur "when your printer may be in the hand of any third party, such as when repairing, lending or disposing the printer."

Like many printers these days, those from Canon connect to networks over Wi-Fi. To do this, users must provide the SSID name, the password preventing unauthorized access to the network, and in some cases, additional information such as Wi-Fi network type, the local network IP address, the MAC address, and network profile. It would be reasonable to assume that performing a simple factory reset that returns all settings to their defaults would be enough to remove these settings, but Monday's advisory indicated that isn't necessarily the case. In the event this information is exposed, malicious actors could use them to gain unauthorized access to a network hosting a Canon printer.

Derek Lowe, a medicinal chemist and freelance writer on science and pharmaceutical topics, comments on the latest developments around last week's remarkable claim of a well-above-room-temperature superconducting material at ambient pressure, dubbed LK-99. Here's an excerpt from his post: As of this morning, there are (as yet not really verified) reports of replication from the Huazhong University of Science and Technology in China. At least, a video has been posted showed what could be a sample of LK-99 levitating over a magnet due to the Meissner effect, and in different orientations relative to the magnet itself. That's important, because a (merely!) paramagnetic material can levitate in a sufficiently strong field (as can diamagnetic materials like water droplets and frogs), but these can come back to a particular orientation like a compass needle. Superconductors are "perfect diamagnets," excluding all magnetic fields, and that's a big difference. The "Meissner effect" that everyone has been hearing about so much is observed when a material first becomes superconductive at the right temperature and expels whatever magnetic fields were penetrating it at the time. All this said, we're having to take the video on the statements of whoever made/released it, and there are other possible explanations for the it that do not involve room-temperature superconductivity. I will be very happy if this is a real replication, but I'm not taking the day off yet to celebrate just based on this.

And even though I'm usually more of an experimental-results guy than a theory guy, two other new preprints interest me greatly. One is from a team (PDF) at the Shenyang National Laboratory for Materials Science, and the other (PDF) is from Sinead Griffin at Lawrence Berkeley. Both start from the reported X-ray structural data of LK-99 and look at its predicted behavior via density functional theory (DFT) calculations. And they come to very similar conclusions: it could work. This is quite important, because this could mean that we don't need to postulate completely new physics to explain something like LK-99 - if you'd given the starting data to someone as a blind test, they would have come back after the DFT runs saying "You know, this looks like it could be a really good superconductor..." [...]

I am guardedly optimistic at this point. The Shenyang and Lawrence Berkeley calculations are very positive developments, and take this well out of the cold-fusion "we can offer no explanation" territory. Not that there's anything wrong with new physics (!), but it sets a much, much higher bar if you have to invoke something in that range. I await more replication data, and with more than just social media videos backing them up. This is by far the most believable shot at room-temperature-and-pressure superconductivity the world has seen so far, and the coming days and weeks are going to be extremely damned interesting.

German semiconductor maker Infineon Technologies AG announced that it's producing a printed circuit board (PCB) that dissolves in water. Engadget reports: Jiva's biodegradable PCB is made from natural fibers and a halogen-free polymer with a much lower carbon footprint than traditional boards made with fiberglass composites. A 2022 study by the University of Washington College of Engineering and Microsoft Research saw the team create an Earth-friendly mouse using a Soluboard PCB as its core. The researchers found that the Soluboard dissolved in hot water in under six minutes. However, it can take several hours to break down at room temperature.

In addition to dissolving the PCB fibers, the process makes it easier to retrieve the valuable metals attached to it. âoeAfter [it dissolves], we're left with the chips and circuit traces which we can filter out,â said UW assistant professor Vikram Iyer, who worked on the mouse project. The video [here] shows the Soluboard dissolving in a frying pan with boiling water. "Adopting a water-based recycling process could lead to higher yields in the recovery of valuable metals," said Jonathan Swanston, CEO and co-founder of Jiva Materials. Jiva says the board has a 60 percent smaller carbon footprint than traditional PCBs -- specifically, it can save 10.5 kg of carbon and 620 g of plastic per square meter of PCB.

An anonymous reader quotes a report from TIME: U.S. and European officials are growing increasingly concerned about China's accelerated push into the production of older-generation semiconductors and are debating new strategies to contain the country's expansion. President Joe Biden implemented broad controls over China's ability to secure the kind of advanced chips that power artificial-intelligence models and military applications. But Beijing responded by pouring billions into factories for the so-called legacy chips that haven't been banned. Such chips are still essential throughout the global economy, critical components for everything from smartphones and electric vehicles to military hardware. That's sparked fresh fears about China's potential influence and triggered talks of further reining in the Asian nation, according to people familiar with the matter, who asked not to be identified because the deliberations are private. The U.S. is determined to prevent chips from becoming a point of leverage for China, the people said.

Commerce Secretary Gina Raimondo alluded to the problem during a panel discussion last week at the American Enterprise Institute. "The amount of money that China is pouring into subsidizing what will be an excess capacity of mature chips and legacy chips -- that's a problem that we need to be thinking about and working with our allies to get ahead of," she said. While there's no timeline for action to be taken and information is still being gathered, all options are on the table, according to a senior Biden administration official. The most advanced semiconductors are those produced using the thinnest etching technology, with 3-nanometers state of the art today. Legacy chips are typically considered those made with 28-nm equipment or above, technology introduced more than a decade ago.

Senior E.U. and U.S. officials are concerned about Beijing's drive to dominate this market for both economic and security reasons, the people said. They worry Chinese companies could dump their legacy chips on global markets in the future, driving foreign rivals out of business like in the solar industry, they said. Western companies may then become dependent on China for these semiconductors, the people said. Buying such critical tech components from China may create national security risks, especially if the silicon is needed in defense equipment. "The United States and its partners should be on guard to mitigate nonmarket behavior by China's emerging semiconductor firms," researchers Robert Daly and Matthew Turpin wrote in a recent essay for the Hoover Institution think tank at Stanford University. "Over time, it could create new U.S. or partner dependencies on China-based supply chains that do not exist today, impinging on U.S. strategic autonomy."

It isn't just software companies looking to enter the generative AI fray. Dell, the PC maker, is going all in on generative AI and offering hardware to run powerful models and a new platform to help organizations get started. From a report:The company released what it calls Dell Generative AI Solutions for clients to set up access to large language models and create generative AI projects. The company will offer new hardware setups, a managed service platform, and computers to run generative AI projects faster.

Dell is known for releasing laptops and monitors, but the company also produces server racks and other enterprise hardware. While the more public face of the AI arms race is between developers of large language models like Meta, OpenAI, and Google, another group of tech companies is looking into how to cash in on the technology. From hardware providers to cloud providers, everyone believes they need an AI service to keep up as clients want to add more AI capabilities to their businesses.

"The man behind the race to replace gasoline-fueled cars with electric ones is worried about having enough juice," writes the Wall Street Journal: In recent days he has reiterated those concerns, predicting U.S. consumption of electricity, driven in part by battery-powered vehicles, will triple by around 2045. That followed his saying earlier this month that he anticipates an electricity shortage in two years that could stunt the energy-hungry development of artificial intelligence. "You really need to bring the time scale of projects in sooner and have a high sense of urgency," Musk told energy executives Tuesday at a conference held by PG&E, one of the nation's largest utilities. "My biggest concern is that there's insufficient urgency."

Musk's participation with PG&E Chief Executive Patti Poppe at the power company's conference marked the third major energy event the billionaire has appeared at in the past 12 months. He has played the part of Cassandra, trying to spark more industry attention on the infrastructure required for his EV and AI futures as he advocates for a fully electric economy. "I can't emphasize enough: we need more electricity," Musk said last month at an energy conference in Austin. "However much electricity you think you need, more than that is needed." The U.S. energy industry in recent years already has struggled at times to keep up with demand, resorting to threats of rolling blackouts amid heat waves and other demand spikes. Those stresses have rattled an industry undergoing an upheaval as old, polluting plants are being replaced by renewable energy. Utilities are spending big to retool their systems to be greener and make them more resilient. Deloitte estimates the largest U.S. electric companies together will spend as much as $1.8 trillion by 2030 on those efforts. Adding to the challenge is an industry historically accustomed to moving slowly, partly because of regulators aiming to protect consumers from price increases.

This week America's Department of Energy announced $100 million to support states, local governments, and public utilities "in purchasing products derived from converted carbon emissions."

The hope is to jumpstart the creation of a market for "environmentally sustainable alternatives in fuels, chemicals, and building products sourced from captured emissions from industrial and power generation facilities." U.S. Secretary of Energy Jennifer M. Granholm says it will "help transform harmful pollutants into beneficial products." "State and local grants, made possible through the Bipartisan Infrastructure Law, will help demonstrate the economic viability of innovative technologies, resulting in huge net reductions in lifecycle greenhouse gas emissions, while bringing new, good-paying jobs and cleaner air to communities nationwide." States, local governments, and public utilities purchase large quantities of products, therefore providing an incentive to purchase products made from carbon emissions is an important method to drive emissions reductions...

[T]he Carbon Utilization Procurement Grants program will help offset 50% of the costs to states, local governments, and public utilities or agencies to procure and use products developed through the conversion of captured carbon dioxide and carbon monoxide emissions. The commercial or industrial products to be procured and used under these grants must demonstrate a significant net reduction in greenhouse gas emissions compared to incumbent products via a life cycle analysis...

Projects selected under this opportunity will be required to develop and implement strategies to ensure strong community and worker benefits, and report on such activities and outcomes.

Long-time Slashdot reader theodp writes: A specially illustrated BBC story created by artist/writer Ben Platts-Mills tells the remarkable story of how a dangerous radioactive apparatus in the Manhattan Project killed a scientist in 1946.

"Less than a year after the Trinity atomic bomb test," Platts-Mills writes, "a careless slip with a screwdriver cost Louis Slotin his life. In 1946, Slotin, a nuclear physicist, was poised to leave his job at Los Alamos National Laboratories (formerly the Manhattan Project). When his successor came to visit his lab, he decided to demonstrate a potentially dangerous apparatus, called the "critical assembly". During the demo, he used his screwdriver to support a beryllium hemisphere over a plutonium core. It slipped, and the hemisphere dropped over the core, triggering a burst of radiation. He died nine days later."

In an interesting follow-up story, Platts-Mills explains how he pieced together what happened inside the room where 'The Blue Flash' occurred (it has been observed that many criticality accidents emit a blue flash of light).
15 years later there were more fatalities at a nuclear power plant after the Atomic Energy Commission opened the National Reactor Testing Station in a desert west of Idaho Falls, according to Wikipedia: The event occurred at an experimental U.S. Army plant known as the Argonne Low-Power Reactor, which the Army called the Stationary Low-Power Reactor Number One (SL-1)... Three trained military men had been working inside the reactor room when a mistake was made while reattaching a control rod to its motor assembly. With the central control rod nearly fully extended, the nuclear reactor rated at 3 MW rapidly increased power to 20 GW. This rapidly boiled the water inside the core.

As the steam expanded, a pressure wave of water forcefully struck the top of the reactor vessel, upon which two of the men stood. The explosion was so severe that the reactor vessel was propelled nine feet into the air, striking the ceiling before settling back into its original position. One man was impaled by a shield plug and lodged into the ceiling, where he died instantly. The other men died from their injuries within hours. The three men were buried in lead coffins, and that entire section of the site was buried.
"The core meltdown caused no damage to the area, although some radioactive nuclear fission products were released into the atmosphere."

This week Idaho Falls became one of the sites re-purposed for possible utility-scale clean energy projects as part of America's "Cleanup to Clean Energy" initiative.

Monday a researcher with Google Information Security posted about a new vulnerability he independently found in AMD's Zen 2 processors. Tom's Hardware reports: The 'Zenbleed' vulnerability spans the entire Zen 2 product stack, including AMD's EPYC data center processors and the Ryzen 3000/4000/5000 CPUs, allowing the theft of protected information from the CPU, such as encryption keys and user logins. The attack does not require physical access to the computer or server and can even be executed via JavaScript on a webpage...

AMD added the AMD-SB-7008 Bulletin several hours later. AMD has patches ready for its EPYC 7002 'Rome' processors now, but it will not patch its consumer Zen 2 Ryzen 3000, 4000, and some 5000-series chips until November and December of this year... AMD hasn't given specific details of any performance impacts but did issue the following statement to Tom's Hardware: "Any performance impact will vary depending on workload and system configuration. AMD is not aware of any known exploit of the described vulnerability outside the research environment..."

AMD describes the exploit much more simply, saying, "Under specific microarchitectural circumstances, a register in "Zen 2" CPUs may not be written to 0 correctly. This may cause data from another process and/or thread to be stored in the YMM register, which may allow an attacker to potentially access sensitive information."
The article includes a list of the impacted processors with a schedule for the release of the updated firmware to OEMs.

The Google Information Security researcher who discovered the bug is sharing research on different CPU behaviors, and says the bug can be patched through software on multiple operating systems (e.g., "you can set the chicken bit DE_CFG[9]") — but this might result in a performance penalty.

Thanks to long-time Slashdot reader waspleg for sharing the news.

Friday America's Department of Energy announced plans to re-purpose some of the land it owns — "portions of which were previously used in the nation's nuclear weapons program" — for generating clean energy. They'll be leasing them out for "utility-scale clean energy projects" in an initiative called "Cleanup to Clean Energy."

The agency has identified 70,000 acres for potential development, in New Mexico, Nevada, South Carolina, Idaho, and Washington: "We are going to transform the lands we have used over decades for nuclear security and environmental remediation by working closely with tribes and local communities together with partners in the private sector to build some of the largest clean energy projects in the world," said U.S. Secretary of Energy Jennifer M. Granholm. "Through the Cleanup to Clean Energy initiative, the Department of Energy will leverage areas that were previously used to protect our national security and will repurpose them to the same end — this time, generating clean energy that will help save the planet and protect our energy independence."
The announcement notes that in December 2021, President Biden directed U.S. federal agencies to "authorize use of their real property assets, including land for the development of new clean electricity generation and storage through leases, grants, permits, or other mechanisms."

"As the leading Federal agency on clean energy research and development, DOE has both a unique opportunity and a clear responsibility to lead by example and identify creative solutions to achieve the President's mandate."

Oxide Computer Company spent four years working toward "The power of the cloud in your data center... bringing hyperscaler agility to the mainstream enterprise." And on June 30, Oxide finally shipped its very first server rack.

Long-time Slashdot reader destinyland shares this report: It's the culmination of years of work — to fulfill a long-standing dream. In December of 2019, Oxide co-founder Jess Frazelle had written a blog post remembering conversations over the year with people who'd been running their own workloads on-premises... "Hyperscalers like Facebook, Google, and Microsoft have what I like to call 'infrastructure privilege' since they long ago decided they could build their own hardware and software to fulfill their needs better than commodity vendors. We are working to bring that same infrastructure privilege to everyone else!"

Frazelle had seen a chance to make an impact with "better integration between the hardware and software stacks, better power distribution, and better density. It's even better for the environment due to the energy consumption wins."
Oxide CTO Bryan Cantrill sees real problems in the proprietary firmware that sits between hardware and system software — so Oxide's server eliminates the BIOS and UEFI altogether, and replaces the hardware-managing baseboard management controller (or BMC) with "a proper service processor." They even wrote their own custom, all-Rust operating system (named Hubris). On the Software Engineering Daily podcast, Cantrill says "These things boot like a rocket."

And it's all open source. "Everything we do is out there for people to see and understand..." Cantrill added. On the Changelog podcast Cantrill assessed its significance. "I don't necessarily view it as a revolution in its own right, so much as it is bringing the open source revolution to firmware."

Oxide's early funders include 92-year-old Pierre Lamond (who hired Andy Grove at Fairchild Semiconductor) — and customers who supported their vision. On Software Engineering Daily's podcast Cantrill points out that "If you're going to use a lot of compute, you actually don't want to rent it — you want to own it."

"A new group of automotive super friends is banding together," reports the Verge, "promising to build the next big North American electric vehicle charging network." These worldwide automakers — BMW, General Motors, Honda, Hyundai, Kia, Mercedes-Benz, and Stellantis — announced a planned joint venture Wednesday to erect easy-to-activate DC fast chargers along US and Canadian highways and in urban environments.

The grand plan for the currently unnamed partnership is to install "at least" 30,000 high-speed EV chargers by 2030, with the first ones to open summer 2024 in the US. The collective plans to leverage National Electric Vehicle Infrastructure (NEVI) funding in the US and will also use other private and public funding from state and federal sources to build out the network... The new stations will connect and charge EV models made by the partnered automakers without having to fumble with another charging station app. The companies also plan to integrate the developing "Plug and Charge" standard that the Federal Highway Administration is attempting to standardize... All stations will include the standardized Tesla North American Charging Standard (NACS) ports and also the current widely used Combined Charging System (CCS) plugs.
"The new joint venture is also planned to be entirely powered by renewable energy," the article adds.

But "It's not known if renewable energy will directly power them or if the companies plan to buy credits like Rivian announced Tuesday."

The world's largest community of 3D-printed homes, located in Texas, has unveiled its first completed house. CNN reports: With walls "printed" using a concrete-based material, the single-story structure is the first of 100 such homes set to welcome residents starting September. The community is part of a wider development in Georgetown, Texas called Wolf Ranch. It's located about 30 miles north of Austin, the state capital, and is a collaboration between Texas construction firm ICON, homebuilding company Lennar and Danish architecture practice Bjarke Ingels Group (BIG). On Saturday prospective buyers toured around the finished model home at the project's grand opening, and some of the units have already sold, ICON spokesperson Cara Caulkins told CNN via email.

Images of the newly completed building shared by the company show brightly lit interiors and curved gray walls. The walls are made from a concrete mix called Lavacrete, which is piped into place using 46-foot-wide robotic printers. After the walls are printed, the doors, windows and roofs -- all of which are equipped with solar panels -- are installed. ICON says more than a third of the homes' walls have now been printed, and the properties currently on offer are being sold at $475,000 to $599,000. The 3D-printed homes range in size from 1,500 to 2,100 square feet and have three to four bedrooms.

Following a rash of deadly fires, consumer advocates and fire departments, particularly in New York City, want the U.S. Consumer Product Safety Commission to confiscate lithium-ion electric bikes that don't comply with regulations at the border. The ultimate goal is for unsafe e-bikes and poorly manufactured batteries to be taken off the streets and out of homes. The Associated Press reports: "We've been sounding the alarm for months," New York City Mayor Eric Adams said a day after an exploding battery ignited the Chinatown e-bike shop fire last month. "We need real action, not only on the state level, but on the federal level." With some 65,000 e-bikes zipping through its streets -- more than any other place in the U.S. -- New York City is the epicenter of battery-related fires. There have been 100 such blazes so far this year, resulting in 13 deaths, already more than double the six fatalities last year. Nationally, there were more than 200 battery-related fires reported to the commission -- an obvious undercount -- from 39 states over the past two years, including 19 deaths blamed on so-called micromobility devices that include battery-powered scooters, bicycles and hoverboards.

New York's two U.S. Senators, Democrats Chuck Schumer and Kirsten Gillibrand, introduced legislation last month that would set mandatory safety standards for e-bikes and the batteries that power them. Because mandatory standards don't exist, Schumer said, poorly made batteries have flooded the U.S., increasing the risk of fires. Earlier this year, New York City urgently enacted a sweeping package of local laws intended to crack down on defective batteries, including a ban on the sale or rental of e-bikes and batteries that aren't certified as meeting safety standards by an independent product testing lab. The new rules also outlaw tampering with batteries or selling refurbished batteries made with lithium-ion cells scavenged from used units. [...]

Tighter regulations, safety standards and compliance testing drastically reduced the risk of fires in such devices, according to Robert Slone, the senior vice president and chief scientist for UL Solutions. The same can happen with e-bike batteries, he said, if they are made to comply with established safety standards. "We just need to make them safe, and there is a way to make them safe through testing and certification," Slone said, "given the history that we've seen in terms of fires and injuries and unfortunately, deaths as well -- not just in New York, but across the country and around the world."

Apple's increasing use of "serialization," which pairs hardware components with the logic board using proprietary software locks, is making simple repairs on devices like iPads and iPhones harder and more expensive. In a recent Forbes article, a repair expert claims the Apple Pencil won't work properly on the iPad Pro if the display is replaced with a non-genuine Apple part, or even a screen from another iPad. From the report: This has now been extended to the displays of fifth and sixth generations of the iPad Pro 12.9-inch and third and fourth generation 11-inch tablets, repair expert Ricky Panesar, founder of iCorrect.co.uk, told me. While repairing a customer's device, Panesar found that the Apple Pencil wasn't delivering straight lines when the iPad display was replaced with a screen from another Apple iPad. "We found with the newer versions of the iPad that when you put a new screen on, even if it's taken from another iPad, the pencil strokes don't work perfectly." Panesar explained to me.

"They have a memory chip that sits on the screen that's programmed to only allow the Pencil functionality to work if the screen is connected to the original logic board." He continued. In practice, Panesar found that lines drawn on the replaced display (Panesar says he doesn't use aftermarket parts for repairs) with the Apple Pencil aren't completely straight. He demoed this in the video [here]. Panesar isn't the only person to discover this, a Reddit post from May complained about the same issue. The poster claimed to have bought a sixth generation iPad Mini from a reseller, which is having the same squiggly line problem. Commenters pointed out that the issue is likely related to serialization and linked to Panesar's video.