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Kerbal Space Program spiritual successor Kitten Space Agency now has a Linux version - GamingOnLinux
Categories: Linux
Intel hiring GPU driver engineers for Linux - GamingOnLinux
Intel hiring GPU driver engineers for Linux GamingOnLinux
Categories: Linux
NVIDIA hiring Linux driver engineers to help with Vulkan, Proton and more - GamingOnLinux
Categories: Linux
Rule-Breaking Black Hole Growing At 13x the Cosmic 'Speed Limit' Challenges Theories
"A surprisingly ravenous black hole from the dawn of the universe is breaking two big rules," reports Live Science. "It's not only exceeding the 'speed limit' of black hole growth but also generating extreme X-ray and radio wave emissions — two features that are not predicted to coexist..."
"How is this rule-breaking behavior even possible? In a paper published Jan. 21 in The Astrophysical Journal, an international team of researchers observed ID830 in multiple wavelengths to find an answer...."
As they attract gas and dust, this material accumulates in a swirling accretion disk. Gravity pulls the material from the disk into the black hole, but the infalling material generates radiation pressure that pushes outward and prevents more stuff from falling in. As a result, black holes are muzzled by a self-regulating process called the Eddington limit... Its X-ray brightness suggests that ID830 is accreting mass at about 13 times the Eddington limit, due to a sudden burst of inflowing gas that may have occurred as ID830 shredded and engulfed a celestial body that wandered too close. "For a supermassive black hole (SMBH) as massive as ID830, this would require not a normal (main-sequence) star, but a more massive giant star or a huge gas cloud," study co-author Sakiko Obuchi, an observational astronomer at Waseda University in Tokyo, told Live Science via email. Such super-Eddington phases may be incredibly brief, as "this transitional phase is expected to last for roughly 300 years," Obuchi added.
ID830 also simultaneously displays radio and X-ray emissions. These two features are not expected to coexist, especially because super-Eddington accretion is thought to suppress such emissions. "This unexpected combination hints at physical mechanisms not yet fully captured by current models of extreme accretion and jet launching," the researchers said in a statement. So while ID830 is launching massive radio jets, its X-ray emissions appear to originate from a structure called a corona, produced as intense magnetic fields from the accretion disk create a thin but turbulent billion-degree cloud of turbocharged particles. These particles orbit the black hole at nearly the speed of light, in what NASA calls "one of the most extreme physical environments in the universe." Altogether, ID830's rule-breaking behaviors suggest that it is in a rare transitional phase of excessive consumption — and excretion. This incredible feeding burst has energized both its jets and its corona, making ID830 shine brightly across multiple wavelengths as it spews out excess radiation.
Additionally, based on UV-brightness analysis, quasars like ID830 may be unexpectedly common, the researchers said. Models predict that only around 10% of quasars have spectacular radio jets, but these energetic objects could be significantly more abundant in the early universe than previously suggested. Most importantly, ID830 also shows how SMBHs can regulate galaxy growth in the early universe. As a black hole gobbles matter at the super-Eddington limit, the energy from its resultant emissions can heat and disperse matter throughout the interstellar medium — the gas between stars — to suppress star formation. As a result, ancient SMBHs like ID830 may have grown massive at the expense of their host galaxies.
Read more of this story at Slashdot.
Should Job-Seekers Stop Using AI to Write Their Resumes?
When one company asked job applicants to submit a video where they answer a question, most of the 300 responses were "eerily similar," reports the Washington Post (with a company executive saying it was "abundantly clear" they'd used AI.)
Job seekers are turning to AI to help them land jobs more quickly in a tough labor market.... Employers say that's having an unintended consequence: Many applications are looking and sounding the same...
It's easy to spot when candidates over-rely on AI, some employers said. Oftentimes, executive summaries will look eerily similar to each other, odd phrases that people wouldn't normally use in conversation creep into descriptions, fancy vocabulary appears, and someone with entry-level experience uses language that indicates they are much more senior, they added. It's worse when they use auto-apply AI tools, which will find jobs, fill out applications and submit résumés on the candidate's behalf, some employers said. Those tend to misinterpret some of the application questions and fill in the wrong information in inappropriate spots. If these applications were evaluated alone, employers say they'd have a harder time identifying AI usage. But when hundreds of applications all have the same issue, they said, AI's role in it becomes obvious.
The article acknowledges that some employers could be using AI tools to screen resumes too. One job-seeker in Texas even says he'll stop submitting an AI-written résumé when the recruiter stops using AI to evaluate them. "You're saying, 'You shouldn't be doing this' when I know a good chunk of them do this!"
Obligatory XKCD.
Read more of this story at Slashdot.
AAEON UP Squared Series Gains Mainline Linux Support for 40-Pin GPIO in Linux 6.18 - LinuxGizmos.com
Categories: Linux
Handmade by human hands using machines - Digg
Categories: Linux
Raspberry Pi Stock Rises Over Its Possible Use With OpenClaw's AI Agents
This week Raspberry Pi saw its stock price surge more than 60% above its early-February low (before giving up some gains at the end of the week). Reuters notes the rise started when CEO Eben Upton bought 13,224 pounds worth of shares — but there could be another reason. "The rally in the roughly $800 million company has materialised alongside social-media buzz that demand for its single-board computers could pick up as people buy them to run AI agents such as OpenClaw."
The Register explains:
The catalyst appears to have been the sudden realization by one X user, "aleabitoreddit," that the agentic AI hand grenade known as OpenClaw could drive demand for Raspberry Pis the way it had for Apple Mac Minis. The viral AI personal assistant, formerly known as Clawdbot and Moltbot, has dominated the feeds of AI boosters over the past few weeks for its ability to perform everyday tasks like sending emails, managing calendars, booking appointments, and complaining about their meatbag masters on the purportedly all-agent forum known as MoltBook... In case it needs to be said, no one should be running this thing on their personal devices lest the agent accidentally leak your most personal and sensitive secrets to the web... In this context, a cheap low-power device like a Raspberry Pi makes a certain kind of sense as a safer, saner way to poke the robo-lobster...
The Register argues Raspberry Pis aren't as cheap as they used to be "thanks in part to the global memory crunch. Today, a top-specced Raspberry Pi 5 with 16GB of memory will set you back more than $200, up from $120 a year ago."
"You know what's cheaper, easier, and more secure than letting OpenClaw loose on your local area network? A virtual private cloud..."
Read more of this story at Slashdot.
Goodbye, VirtualBox - I found a better, more reliable VM manager for Linux - ZDNET
Categories: Linux
Telegram Disputes Russia's Claim Its Encryption Was Compromised
Russia's domestic intelligence agency claimed Saturday that Ukraine can obtain sensitive information from troops using the Telegram app on the front line, reports Bloomberg. The fact that the claims were made through Russia's state-operated news outlet RIA Novosti signals "tightening scrutiny over a platform used by millions of Russians," Bloomberg notes, as the Kremlin continues efforts to "push people to use a new state-backed alternative."
Russia's communications watchdog limited access to Telegram — a popular messaging app owned by Russian-born billionaire Pavel Durov — over a week ago for failing to comply with Russian laws requiring personal data to be stored locally. Voice and video calls were blocked via Telegram in August. The pressure is the latest move in a long-running campaign to promote what the Kremlin calls a sovereign internet that's led to blocks on YouTube, Instagram and WhatsApp... Foreign intelligence services are able to see Russia's military messages in Telegram too, Russia's Minister for digital development, Maksut Shadaev, said on Wednesday, although he added that Russia will not block access to Telegram for troops for now.
Telegram responded at the time that no breaches of the app's encryption have ever been found. "The Russian government's allegation that our encryption has been compromised is a deliberate fabrication intended to justify outlawing Telegram and forcing citizens onto a state-controlled messaging platform engineered for mass surveillance and censorship," it said in an emailed response.
Read more of this story at Slashdot.
EVs Are Already Making Your Air Cleaner, Research Shows
Fossil fuels produce NO2, which is linked to asthma attacks, bronchitis, and higher risks of heart disease and stroke, according the EV news site Electrek. But the nonprofit news site Grist.org notes a new analysis showing that those emissions decreased by 1.1% for every increase of 200 electric vehicles — across nearly 1,700 ZIP codes.
"A pretty small addition of cars at the ZIP code level led to a decline in air pollution," said Sandrah Eckel, a public health professor at the University of Southern California's Keck School of Medicine and lead author of the study. "It's remarkable."
The study was done at the University of Southern California's medical school, by researchers using high-resolution satellite data, reports Electrek:
The study, just published in The Lancet Planetary Health and partly funded by the National Institutes of Health, adds rare real-world evidence to a claim that's often taken for granted — that EVs don't just cut carbon over time, they also improve local air quality right now... The researchers ran multiple checks to make sure the trend wasn't driven by unrelated factors. They accounted for pandemic-era changes by excluding 2020 in some analyses and controlling for gas prices and work-from-home patterns. They also saw the expected counterexample: neighborhoods that added more gas-powered vehicles experienced increases in pollution. The findings were then replicated using updated ground-level air monitoring data dating back to 2012...
Next, the researchers plan to compare EV adoption with asthma-related emergency room visits and hospitalizations. If those trends line up, it could provide some of the clearest evidence yet of what we already know: that electrifying transportation doesn't just clean the air on paper; it improves public health in practice.
Thanks to long-time Slashdot reader jhoegl for sharing the article.
Read more of this story at Slashdot.
Long Before Tech CEOs Turned To Layoffs To Cover AI Expenses, There Was WorldCom
Long-time Slashdot reader theodp writes:
Jeopardy time. A. This company spurred CEOs to make huge speculative capital expenditures based on wild unverified claims of future demand, resulting in the layoffs of tens of thousands of workers to reduce the resulting expenses, harming their core businesses. Q. What is OpenAI? Sorry, the correct response is, "What is WorldCom?" In 2002, WorldCom, the second largest long-distance company in the U.S., entered Chapter 11 bankruptcy after disclosing accounting fraud that eventually totaled $11 billion, the biggest ever at the time. CEO Bernard Ebbers was subsequently sentenced to 25 years in prison.
CNBC reported that an employee of WorldCom's Internet service provider UUNet set off a frenzy of speculative investment and infrastructure overbuild after he used Excel to create a best-case scenario model for the Internet's growth that suggested in the best of all possible worlds, Internet traffic would double every 100 days, a scenario that would greatly benefit WorldCom, whose lines would carry it. Despite no evidence to support it, WorldCom's lie became an immutable law and businesses around the world made important decisions based on the belief that traffic was doubling every 100 days. "For some period of time I can recall that we were backfilling that expectation with laying cables, something like 2,200 miles of cable an hour," AT&T CEO Michael Armstrong said. "Think of all the companies that went out of business that assumed that that was real."
In 2003, NBC News reported:
Armstrong and former Sprint CEO Bill Esrey struggled for years to understand how WorldCom could beat them so handily. "We would look at the conduct of WorldCom in terms of their pricing, revenue growth, margins, in terms of their cost structure... and the price leader almost every quarter was WorldCom," Armstrong said. Added Esrey, "We couldn't figure out how they were pricing as aggressively as they were.... How could they be so efficient in their costs and expenses?" AT&T and Sprint began cutting jobs to push down their costs to WorldCom's level. "The market said what a marvelous management job WorldCom was doing and they would look over to AT&T and say, 'these guys aren't keeping up.' So, my shareholders were hurt. We laid off tens of thousands of employees in an accelerated fashion [in a futile effort to match WorldCom's phantom profits] and I think the industry was hurt," Armstrong says. "It just wrecked the whole industry," says Esrey.
Read more of this story at Slashdot.
