|
News Source Slashdot:Hardware
Scientists Build a Nuclear-Diamond Battery That Could Power Devices for Thousands of Years
The world's first nuclear-powered battery — a diamond with an embedded radioactive isotope — could power small devices for thousands of years, according to scientists at the UK's University of Bristol. Long-time Slashdot reader fahrbot-bot shared this report from LiveScience:The diamond battery harvests fast-moving electrons excited by radiation, similar to how solar power uses photovoltaic cells to convert photons into electricity, the scientists said. Scientists from the same university first demonstrated a prototype diamond battery — which used nickel-63 as the radioactive source — in 2017. In the new project, the team developed a battery made of carbon-14 radioactive isotopes embedded in manufactured diamonds. The researchers chose carbon-14 as the source material because it emits short-range radiation, which is quickly absorbed by any solid material — meaning there are no concerns about harm from the radiation. Although carbon-14 would be dangerous to ingest or touch with bare hands, the diamond that holds it prevents any short-range radiation from escaping. "Diamond is the hardest substance known to man; there is literally nothing we could use that could offer more protection," Neil Fox, a professor of materials for energy at the University of Bristol, said in the statement... A single nuclear-diamond battery containing 0.04 ounce (1 gram) of carbon-14 could deliver 15 joules of electricity per day. For comparison, a standard alkaline AA battery, which weighs about 0.7 ounces (20 grams), has an energy-storage rating of 700 joules per gram. It delivers more power than the nuclear-diamond battery would in the short term, but it would be exhausted within 24 hours. By contrast, the half-life of carbon-14 is 5,730 years, which means the battery would take that long to be depleted to 50% power.... [A] spacecraft powered by a carbon-14 diamond battery would reach Alpha Centauri — our nearest stellar neighbor, which is about 4.4 light-years from Earth — long before its power were significantly depleted. The battery has no moving parts, according to the article. It "requires no maintenance, nor does it have any carbon emissions."
Read more...
Luigi Mangione's Ghost Gun Was Only Partially 3D-Printed
"More than a decade after the advent of the 3D-printed gun as an icon of libertarianism and a gun control nightmare, police say one of those homemade plastic weapons has now been found in the hands of perhaps the world's most high-profile alleged killer," Wired wrote this month:For the community of DIY gunsmiths who have spent years honing those printable firearm models, in fact, the handgun police claim Luigi Mangione used to fatally shoot UnitedHealthcare CEO Brian Thompson is as recognizable as the now-famous alleged shooter himself — and shows just how practical and lethal those weapons have become. In the 24 hours since police released a photo of what they say is Mangione's gun following the 26-year-old's arrest Monday, the online community devoted to 3D-printed firearms has been quick to identify the suspected murder weapon as a particular model of printable "ghost gun" — a homemade weapon with no serial number, created by assembling a mix of commercial and DIY parts. The gun appears to be a Chairmanwon V1, a tweak of a popular partially 3D-printed Glock-style design known as the FMDA 19.2 — an acronym that stands for the libertarian slogan "Free Men Don't Ask." The FMDA 19.2, released in 2021, is a relatively old model by 3D-printed-gun standards, says one gunsmith who goes by the first name John and the online handle Mr. Snow Makes... Despite its simple description by law enforcement and others as a "3D-printed pistol," the FMDA 19.2 is only partially 3D printed. That makes it fundamentally different from fully 3D-printed guns like the "Liberator," the original one-shot, 3D-printed pistol Wilson debuted in 2013. Instead, firearms built from designs like the FMDA 19.2 are assembled from a combination of commercially produced parts like barrels, slides, and magazines — sometimes sold in kits — and a homemade frame. Because that frame, often referred to as a "lower receiver" or "lower," is the regulated body of the gun, 3D-printing that piece or otherwise creating it at home allows DIY gunmakers to skirt gun-control laws and build ghost guns with no serial number, obtained with no background check or waiting period. Chairmanwon "instantly recognized the gun seized from the suspect..." reported USA Today.As a photo circulated online the fake New Jersey driver's license and 3D-printed gun police found on Luigi Mangione, he spotted the tell-tale stippling pattern on the firearm's grip. "It's mine lol," the man, known as "Chairmanwon" quipped on X Dec. 9. Then he quickly deleted the post... No federal laws ban 3D-printed or privately made firearms. But as police agencies have increasingly recovered untraceable homemade guns at crime scenes, some state legislatures have passed stricter rules... If authorities can prove Mangione downloaded and printed his firearm in Pennsylvania or New York, he could face additional gun charges. Fifteen states now require serial numbers on homemade parts or ban 3D printing them. Some even ban the distribution of 3D printing instructions. President Biden and the Bureau of Alcohol, Tobacco, Firearms and Explosives added regulations in 2022 that say the ghost gun parts kits themselves qualify as "firearms" that should be regulated by the Gun Control Act. ["Commercial manufacturers of the kits will have to be licensed and must add serial numbers on the kits' frame or receiver," USA Today reported earlier. ] Gunmakers challenged those rules at the Supreme Court. In October, the court heard oral arguments, but justices signaled they were leaning toward upholding the rules. Rolling Stone tries to assess the results:In recent years, crimes involving ghost guns seem to have abated across much of the United States. Ghost gun recoveries by police in New York City, Los Angeles, Philadelphia, Baltimore, and other major cities dropped by as much as 25 percent between 2022 and 2023, and the most prolific maker of the kits used to build the untraceable weapons closed its doors this year. The likely cause is a federal rule change requiring the kits to be serialized — a stipulation that forces sellers to conduct background checks on their customers. Monday Luigi Mangione will appear in court for arraignment on state murder charges, reports USA Today:Mangione had been expected to face arraignment on the state charges Thursday, but the proceedings were postponed after federal authorities announced they were also bringing charges, and he was whisked to a federal courthouse instead in a move that appeared to shock Mangione's defense team... Federal authorities unsealed a criminal complaint against Mangione that included four separate charges: murder using a firearm, two counts of interstate stalking and a firearms count. The death penalty was abolished in New York state, but the federal charges could bring a death sentence if Mangione is convicted. The charge of murder using a firearm carries a maximum possible sentence of death or life in prison. The other federal charges have maximum sentences of life in prison, and the firearms charge has a mandatory minimum sentence of 30 years.
Read more...
Startup Set To Brick $800 Kids Robot Is Trying To Open Source It First
Last week, startup Embodied announced it was closing down, and its product, an $800 robot for kids ages 5 to 10, would soon be bricked. Now, in a blog post published on Friday, CEO Paolo Pirjanian shared that Embodied's technical team is working on a way to open-source the robot, ensuring it can continue operating indefinitely. Ars Technica reports: The notice says that after releasing OpenMoxie, Embodied plans to release "all necessary code and documentation" for developers and users. Pirjanian said that an over-the-air (OTA) update is now available for download that will allow previously purchased Moxies to support OpenMoxie. The executive noted that Embodied is still "seeking long-term answers" but claimed that the update is a "vital first step" to "keep the door open" for the robot's continued functionality. At this time, OpenMoxie isn't available and doesn't have a release date. Embodied's wording also seems careful to leave an opening for OpenMoxie to not actually release; although, the company seems optimistic. However, there's also a risk of users failing to update their robots in time and properly. Embodied noted that it won't be able to support users who have trouble with the update or with OpenMoxie post-release. Updating the robot includes connecting to Wi-Fi and leaving it on for at least an hour. "It is extremely important that you update your Moxie with this OTA as soon as possible because once the cloud servers stop working you will not be able to update your robot," the document reads. Embodied hasn't said when exactly its cloud servers still stop working.
Read more...
Qualcomm Processors Properly Licensed From Arm, US Jury Finds
Jurors delivered a mixed verdict on Friday, ruling that Qualcomm had properly licensed its central processor chips from Arm. This decision effectively concludes Arm's lawsuit against Qualcomm, which had the potential to disrupt the global smartphone and PC chip markets. The dispute stemmed from Qualcomm's $1.4 billion acquisition of chip startup Nuvia in 2021. Arm claimed Qualcomm breached contract terms by using Nuvia's designs without permission, while Qualcomm maintained its existing agreement covers the acquired technology. Arm demanded Qualcomm destroy the Nuvia designs created before the acquisition. Reuters reports: An eight-person jury in U.S. federal court deadlocked on the question of whether Nuvia, a startup that Qualcomm purchased for $1.4 billion in 2021, breached the terms of its license with Arm. But the jury found that Qualcomm did not breach Nuvia's license with Arm. The jury also found that Qualcomm's chips created using Nuvia technology, which have been central to Qualcomm's push into the personal computer market, are properly licensed under its own agreement with Arm, clearing the way for Qualcomm to continue selling them.
Read more...
US Data-Center Power Use Could Nearly Triple By 2028, DOE-Backed Report Says
U.S. data center power demand could nearly triple in the next three years, and consume as much as 12% of the country's electricity, as the industry undergoes an AI transformation, according to an unpublished Department of Energy-backed report seen by Reuters. The publication adds: The Lawrence Berkeley National Laboratory report, which is expected to be released on Friday, comes as the U.S. power industry and government agencies attempt to understand how the sudden rise of Big Tech's data-center demand will affect electrical grids, power bills and the climate. By 2028, data-center annual energy use could reach between 74 and 132 gigawatts, or between 6.7% and 12% of total U.S. electricity consumption, according to the Berkeley Lab report. The industry standard-setting report included ranges that depended partly on the availability and demand for a type of AI chip known as GPUs. Currently, data centers make up a little more than 4% of the country's power load. "This really signals to us where the frontier is in terms of growing energy demand in the U.S.," said Avi Shultz, director of the DOE's Industrial Efficiency and Decarbonization Office.
Read more...
'World's First' Grid-Scale Nuclear Fusion Power Plant Announced In the US
Longtime Slashdot reader timeOday shares a report from CNN: If all goes to plan, Virginia will be the site of the world's first grid-scale nuclear fusion power plant, able to harness this futuristic clean power and generate electricity from it by the early 2030s, according to an announcement Tuesday by the startup Commonwealth Fusion Systems. CFS, one of the largest and most-hyped nuclear fusion companies, will make a multibillion-dollar investment into building the facility near Richmond. When operational, the plant will be able to plug into the grid and produce 400 megawatts, enough to power around 150,000 homes, said its CEO Bob Mumgaard. "This will mark the first time fusion power will be made available in the world at grid scale," Mumgaard said. Virginia Gov. Glenn Youngkin welcomed the announcement, calling it "an historic moment for Virginia and the world at large." The plant would represent a new stage in the quest to commercialize nuclear fusion, the process which powers the stars. But the path toward it is unlikely to be smooth, not least because the technology has not yet been proved viable.
Read more...
Apple Reportedly Won't Launch an iPhone Subscription Service
According to Bloomberg's Mark Gurman, Apple is no longer developing a hardware subscription service for iPhones that would let subscribers upgrade devices every year. Gurman first reported Apple's work on the service in 2022, noting it was delayed due to "software bugs and regulatory concerns." The Verge reports: While the hardware subscription service apparently won't see the light of day, Apple offers installment plans you can use to pay for an iPhone over time. The iPhone Upgrade Program spreads the payments of a loan for a new iPhone (and AppleCare Plus) over 24 months, and you can upgrade to a new phone after you pay the equivalent of 12 months. If you have an Apple Card, you can also pay for a new iPhone (and other Apple products) using Apple Card Monthly Installments.
Read more...
Seagate's Breakthrough 32TB HAMR Hard Drives Are Finally Here
Seagate has launched its first mass-produced hard drives using heat-assisted magnetic recording (HAMR) technology, introducing 32TB and 30TB models under the Exos M brand. The drives, based on Seagate's Mozaic 3+ platform, mark the company's commercial breakthrough in HAMR technology after 16 years of development. Compatible with existing systems, the 32TB model uses shingled magnetic recording, while the 30TB version employs conventional magnetic recording.
Read more...
Single Crystal Lithium-Ion Batteries Last 8x Longer, Researchers Show
Researchers used Canada's national synchrotron light source facility "to analyze a new type of lithium-ion battery material — called a single-crystal electrode — that's been charging and discharging non-stop in a Halifax lab for more than six years," reports Tech Xplore. The results? The battery material "lasted more than 20,000 cycles before it hit the 80% capacity cutoff," which they say is equivalent to driving 8 million kms (nearly 5 million miles). That's more than eight times the life of a regular lithium-ion battery that lasted 2,400 cycles before reaching the 80% cutoff — and "When the researchers looked at the single crystal electrode battery, they saw next to no evidence of this mechanical stress." (One says the material "looked very much like a brand-new cell."Toby Bond [a senior scientist at the CLS, who conducted the research for his Ph.D.] attributes the near absence of degradation in the new style battery to the difference in the shape and behavior of the particles that make up the battery electrodes... The single crystal is, as its name implies, one big crystal: it's more like an ice cube. "If you have a snowball in one hand, and an ice cube in the other, it's a lot easier to crush the snowball," says Bond. "The ice cube is much more resistant to mechanical stress and strain." While researchers have for some time known that this new battery type resists the micro cracking that lithium-ion batteries are so susceptible to, this is the first time anyone has studied a cell that's been cycled for so long... Bond says what's most exciting about the research is that it suggests we may be near the point where the battery is no longer the limiting component in an EV — as it may outlast the other parts of the car. The new batteries are already being produced commercially, says Bond, and their use should ramp up significantly within the next couple of years. "I think work like this just helps underscore how reliable they are, and it should help companies that are manufacturing and using these batteries to plan for the long term." Thanks to long-time Slashdot reader schwit1 for sharing the news.
Read more...
Donald Bitzer, a Pioneer of Cyberspace and Plasma Screens, Dies At 90
The Washington Post reports:Years before the internet was created and the first smartphones buzzed to life, an educational platform called PLATO offered a glimpse of the digital world to come. Launched in 1960 at the University of Illinois at Urbana-Champaign [UIUC], it was the first generalized, computer-based instructional system, and grew into a home for early message boards, emails, chatrooms, instant messaging and multiplayer video games. The platform's developer, Donald Bitzer, was a handball-playing, magic-loving electrical engineer who opened his computer lab to practically everyone, welcoming contributions from Illinois undergrads as well as teenagers who were still in high school. Dr. Bitzer, who died Dec. 10 at age 90, spent more than two decades working on PLATO, managing its growth and development while also pioneering digital technologies that included the plasma display panel, a forerunner of the ultrathin screens used on today's TVs and tablets. "All of the features you see kids using now, like discussion boards or forums and blogs, started with PLATO," he said during a 2014 return to Illinois, his alma mater. "All of the social networking we take for granted actually started as an educational tool." Long-time Slashdot reader theodp found another remembrance online. "Ray Ozzie, whose LinkedIn profile dedicates more space to describing his work as a PLATO developer as a UIUC undergrad than it does to his later successes as a creator of Lotus Notes and as Microsoft's Chief Software Architect, offers his own heartfelt mini-obit." Ozzie writes:It's difficult to adequately convey how much impact he had on so many, and I implore you to take a few minutes to honor him by reading a bit about him and his contributions. Links below. As an insecure young CS student at UIUC in 1974, Paul Tenczar, working for/with Don, graciously gave me a chance as a jr. systems programmer on the mind-bogglingly forward thinking system known as PLATO. A global, interactive system for learning, collaboration, and community like no other at the time. We were young and in awe of how Don led, inspired, and managed to keep the project alive. I was introverted; shaking; stage fright. Yeah I could code. But how could such a deeply technical engineer assemble such a strong team to execute on such a totally novel and inspirational vision, secure government funding, and yet also demo the product on the Phil Donahue show? "Here's to the crazy ones. The misfits. The rebels. The troublemakers. The ones who see things differently. They're not fond of rules." You touched so many of us and shaped who we became and the risks we would take, having an impact well beyond that which you created. You made us think and you made us laugh. I hope we made you proud."
Read more...
America Prepares New AI Chip Restrictions to Close China's Backdoor Access
The U.S. wants to limit China's access to advanced AI chips, reports the Wall Street Journal, with new rules to restrict sales in parts of the world. "The rules are aimed at China, but they threaten to create conflict between the U.S. and nations that may not want their purchases of chips micromanaged from Washington.The latest round of curbs could come this month... Among the restrictions, the administration aims to introduce caps on shipments of AI chips to certain countries for use in large computing facilities, people familiar with the plans said. One grouping of countries — close U.S. allies — would be unrestricted, the people said, while another tier of countries would face limits on the number of chips that can go into data centers used for AI... The purchasing caps primarily apply to regions such as Southeast Asia and the Middle East, the people said... The administration recently sent letters to major chip-makers including Taiwan Semiconductor Manufacturing and Samsung Electronics informing them about some of the restrictions, these people said. The letters said the companies needed to apply for a license to transfer chips to China that are manufactured using advanced chip-making technology or meet other criteria. These criteria include a size and transistor-number limit as well as any indication that the chips are for use in training AI models, the people said. Previous regulations already limit the shipment of advanced GPUs and memory chips to China, but the new rules spell out more clearly to manufacturers what is banned. U.S. officials "are also considering other options," the article points out. "The administration is considering placing controls on exports of the so-called weights that underlie advanced AI models, according to people familiar with the matter, and weighing further China-specific restrictions on chip manufacturing."
Read more...
Chinese Electric Cars are Already Surging in Popularity in Mexico, Europe, Asia, and Africa
"The Chinese government has long subsidized carmakers with the goal of becoming a major auto exporter," notes the New York Times. But this week they reported on dozens of dealerships around Mexico that are now selling China-made electric vehicles, saying it could be "a potentially grave threat to the North American auto industry." One employee said their dealership "was selling cars as fast as they arrived from China," including "a small but capable four-door electric compact that costs about $18,000."Chinese carmakers are effectively barred from the United States by tariffs that double the sticker price of vehicles imported from China, and they are not yet manufacturing significant numbers of vehicles in Mexico that could be exported across the border. But their ambition to expand overseas is on vivid display in Mexico and across Latin America, Asia, Europe and Africa. Ads for Chinese brands are in airports and soccer stadiums and loom above Mexico City streets on large billboards. Chinese cars, both gasoline and electric models, are an increasingly common sight. BYD and others are also looking for places to build factories in Mexico, although none have announced firm plans. Initially, the plants would serve Latin America, part of a campaign by Chinese automakers to erode the dominance of Japanese, American and European carmakers in places like Brazil and Thailand. But there is little doubt that, eventually, Chinese carmakers hope to use Mexico as an on-ramp to the United States. One of Mexico's EV dealers suggested to the Times that "maybe next year BYD can enter the United States." And he added with a smile, "If not, I can deliver."It is very unlikely that the Dolphin or any other Chinese car brand will be available in the United States soon. Because of the high tariffs, Chinese carmakers have not tried to establish dealerships or get approval from federal regulators to sell in the United States. (BYD does make electric buses in California.) And someone buying a BYD from a Mexican dealer like Mr. Alegría would have a hard time registering and insuring it in the United States because the cars have not demonstrated that they meet safety standards... But in the years to come it may be difficult to explain to consumers in the United States why they're not allowed to buy inexpensive electric vehicles that are readily available across the border, especially if they're made in Mexico, which already manufactures millions of cars for the United States. Less than 20 years ago, Chinese cars were widely seen as inferior, even by many Chinese drivers. But in recent years, the country's manufacturers have pulled even with foreign rivals in mechanical quality, analysts say, and often surpass U.S., Japanese and European carmakers in battery technology, autonomous driving and entertainment software. (Think in-car karaoke and rotating touch screens)... [T]he auto industry does not appear to have seen anything like the current wave of Chinese brands, which have quickly overtaken Japanese companies as the world's largest auto exporters. Chinese carmakers have made deep inroads in countries where they have local production or face few significant trade barriers. In Brazil, Chinese brands have a 9 percent share of car sales, up from 1 percent in 2019. In Thailand, they have 18 percent of the market, up from 5 percent in 2019, according to JATO. The article notes that for the world's largest car market — China itself — General Motors just announced "a more than $5 billion hit to its profit" to restructure China operations that have been losing money in recent years. And the article includes this quote from Felipe Munoz, global analyst at the research firm JATO Dynamics. "Before the pandemic, the rules were set down by the Western carmakers. Now it's the opposite."
Read more...
Intel Executives Say a Manufacturing Spinoff Is Possible
Intel's interim co-CEOs acknowledged that the company may be forced to sell its manufacturing operations if a new chipmaking technology slated for next year does not succeed. Reuters reports: Speaking at a Barclays investment banking conference in San Francisco on Thursday, Michelle Johnston Holthaus and David Zinsner - who were tapped as co-CEOs after the ouster of former CEO Pat Gelsinger last week - were asked if the company's continued combination of manufacturing and design was tied to the success of a new chipmaking technology called 18A due next year. Intel plans to use that technology to bring manufacturing of a flagship PC chip back in-house after being forced to outsource its biggest product to rival Taiwan Semiconductor Manufacturing. "Pragmatically, do I think it makes sense that they're completely separated and there's no tie?" Holthaus said of the company's product and manufacturing divisions. "I don't think so. But someone will decide that." Zinsner, also chief financial officer, outlined how Intel is already separating the finances and operations of this manufacturing division into a standalone subsidiary. Zinsner said Intel Foundry, as the division is known, is already run separately from Intel's other businesses and is setting up a separate operational board and business process software system. "That's going to happen," Zinsner said. "Does it ever fully separate? That's an open question for another day."
Read more...
LG Discontinues Blu-ray Players
FlatpanelsHD: LG has discontinued all Blu-ray players, including the UBK80 and UBK90 UHD Blu-ray players, with remaining units only available while stocks last. The announcement echoes similar moves from Oppo in 2018 and Samsung in 2019, when both companies exited the optical disc player market. LG has now officially discontinued its Blu-ray and UHD Blu-ray players, as reflected on LG's online portals and confirmed by multiple sources to FlatpanelsHD.
Read more...
Bitcoin Miner Purchases 112-Megawatt Texas Wind Farm, Takes it Off the Grid
This week a Florida-based Bitcoin-tech company named MARA Holdings announced it had bought a 114-megawatt Texas wind farm, reports Chron.com, "and will subsequently take it off the power grid and use it to energize its mining operations." MARA's CEO tells the site they're "leveraging renewable resources that would have otherwise been curtailed" while "reducing our bitcoin production costs through vertical integration, and demonstrating MARA's commitment to environmental stewardship."The wind farms were not a part of the Electric Reliability Council of Texas (ERCOT) grid, but instead they were located within the Southwest Power Pool, which manages the market for the central U.S., including but not limited to most or parts of Oklahoma, Kansas, Nebraska, South Dakota and North Dakota... A 114-MW facility could power somewhere between 20,000 and 100,000 homes, depending on who you ask... Historically, the facilities use up a lot of power and have generated backlash from neighbors who have complained about the noise of the machines inside. Texas has been a haven for cryptocurrency tech companies, primarily because of the state's space, deregulated power market and friendly business climate. Two weeks ago, the Public Utilities Commission adopted a rule requiring crypto and other virtual currency miners within the ERCOT grid to register their locations, ownership information and electricity demands, to further ensure that they could be watchful of this emerging source of energy consumption. "Crypto mining operations currently consume around 2.3 percent of US electricity, and it requires roughly 155,000kWh to mine one Bitcoin," notes the site Data Centre Dynamics.This is the second off-grid power deal MARA has signed over the last few months. In October, it launched a 25MW micro data center operation across oil wellheads in Texas and North Dakota. The data center will be powered exclusively by excess natural gas from oilfield production that would have otherwise been flared. The operation will be distributed across wellheads in Texas and North Dakota, with operational status expected by January 2025. Some context from Bloomberg:A few years ago Bitcoin miners took part in a global scramble for electricity to power their specialized computers... But the rise of AI, with its insatiable demand for electricity, dwarfed the needs of crypto and upended energy markets worldwide. Miners must now compete with much-larger tech firms for connections to electrical grids and power contracts. "Bitcoin miners are being forced to go look at marginal generation," said [MARA CEO Fred] Thiel. "The AI guys can afford to pay a much higher amount for energy than a Bitcoin miner"...MARA's plan to mine only when the wind is blowing makes economic sense because its mine will house last-generation computers that would otherwise have been retired, Thiel said. "Thiel said he'd be interested to potentially buy more wind farms over time."
Read more...
|
