Posted by msmash from Slashdot
From the turning-coal-into-gold department: Turning recently closed coalmines into solar energy plants could add almost 300GW of renewable energy by 2030, converting derelict wastelands to productive use, according to a new report. From a report: In a first of its kind analysis, researchers from Global Energy Monitor (GEM) identified 312 surface coalmines closed since 2020 around the world, and 134 likely to close by the end of the decade, together covering 5,820 sq km (2,250 sq miles) -- a land area nearly the size of Palestine.
Strip mining turns terrains into wastelands, polluted and denuded of topsoil. But if they were filled with solar panels and developed into energy plants, the report claims, they could generate enough energy to power as big and power hungry a nation as Germany.
Posted by BeauHD from Slashdot
From the would-you-look-at-that department: alternative_right shares a report from ScienceAlert: The colossal black hole lurking at the center of the Milky Way galaxy is spinning almost as fast as its maximum rotation rate. That's just one thing astrophysicists have discovered after developing and applying a new method to tease apart the secrets still hidden in supermassive black hole observations collected by the Event Horizon Telescope (EHT). The unprecedented global collaboration spent years working to give us the first direct images of the shadows of black holes, first with M87* in a galaxy 55 million light-years away, then with Sgr A*, the supermassive black hole at the heart of our own galaxy. [...]
Their results show, among other things, that Sgr A* is not only spinning at close to its maximum speed, but that its rotational axis is pointed in Earth's direction, and that the glow around it is generated by hot electrons. Perhaps the most interesting thing is that the magnetic field in the material around Sgr A* doesn't appear to be behaving in a way that's predicted by theory. M87*, they discovered, is also rotating rapidly, although not as fast as Sgr A*. However, it is rotating in the opposite direction to the material swirling in a disk around it -- possibly because of a past merger with another supermassive black hole. The findings have been detailed in three papers published in the journal Astronomy & Astrophysics. They can be found here, here, and here.
Posted by BeauHD from Slashdot
From the spare-parts-coming-soon department: alternative_right shares a report from ScienceAlert: A team of biologists from Northeastern University and the University of Kentucky has found one of the key molecules involved in axolotl regeneration. It's a crucial component in ensuring the body grows back the right parts in the right spot: for instance, growing a hand, from the wrist. "The cells can interpret this cue to say, 'I'm at the elbow, and then I'm going to grow back the hand' or 'I'm at the shoulder... so I'm going to then enable those cells to grow back the entire limb'," biologist James Monaghan explains.
That molecule, retinoic acid, is arranged through the axolotl body in a gradient, signaling to regenerative cells how far down the limb has been severed. Closer to the shoulder, axolotls have higher levels of retinoic acid, and lower levels of the enzyme that breaks it down. This ratio changes the further the limb extends from the body. The team found this balance between retinoic acid and the enzyme that breaks it down plays a crucial role in 'programming' the cluster of regenerative cells that form at an injury site. When they added surplus retinoic acid to the hand of an axolotl in the process of regenerating, it grew an entire arm instead.
In theory, the human body has the right molecules and cells to do this too, but our cells respond to the signals very differently, instead forming collagen-based scars at injury sites. Next, Monaghan is keen to find out what's going on inside cells -- the axolotl's, and our own -- when those retinoic acid signals are received. The research is published in Nature Communications.
Posted by BeauHD from Slashdot
From the new-and-improved department: Longtime Slashdot reader fahrbot-bot shares a report from the Cool Down: A team of chemical engineers at the Massachusetts Institute of Technology has invented a new process to separate crude oil components, potentially bringing forward a replacement that can cut its harmful carbon pollution by 90%. The original technique, which uses heat to separate crude oil into gasoline, diesel, and heating oil, accounts for roughly 1% of all global energy consumption and 6% of dirty energy pollution from the carbon dioxide it releases.
"Instead of boiling mixtures to purify them, why not separate components based on shape and size?" said Zachary P. Smith, associate professor of chemical engineering at MIT and senior author of the study, as previously reported in Interesting Engineering. The team invented a polymer membrane that divides crude oil into its various uses like a sieve. The new process follows a similar strategy used by the water industry for desalination, which uses reverse osmosis membranes and has been around since the 1970s. [The membrane excelled in lab tests. It increased the toluene concentration by 20 times in a mixture with triisopropylbenzene. It also effectively separated real industrial oil samples containing naphtha, kerosene, and diesel.]
Posted by msmash from Slashdot
From the apocalyptic-event department: Publishers face an existential threat in the AI era and need to take action to make sure they are fairly compensated for their content, Cloudflare CEO Matthew Prince told Axios at an event in Cannes on Thursday. From a report: Search traffic referrals have plummeted as people increasingly rely on AI summaries to answer their queries, forcing many publishers to reevaluate their business models. Ten years ago, Google crawled two pages for every visitor it sent a publisher, per Prince.
He said that six months ago:
For Google that ratio was 6:1
For OpenAI, it was 250:1
For Anthropic, it was 6,000:1
Now:
For Google, it's 18:1
For OpenAI, it's 1,500:1
For Anthropic, it's 60,000:1
Between the lines: "People aren't following the footnotes," Prince said.
Posted by BeauHD from Slashdot
From the sign-of-the-times department: An anonymous reader quotes a report from the Hollywood Reporter: Bruce Lee, Jackie Chan and Jet Li and a legion of the all-time greats of martial cinema are about to get an AI makeover. In a sign-of-the-times announcement at the Shanghai International Film Festival on Thursday, a collection of Chinese studios revealed that they are turning to AI to re-imagine around 100 classics of the genre. Lee's classic Fist of Fury (1972), Chan's breakthrough Drunken Master (1978) and the Tsui Hark-directed epic Once Upon a Time in China (1991), which turned Li into a bone fide movie star, are among the features poised for the treatment, as part of the "Kung Fu Movie Heritage Project 100 Classics AI Revitalization Project."
There will also be a digital reworking of the John Woo classic A Better Tomorrow (1986) that, by the looks of the trailer, turns the money-burning anti-hero originally played by Chow Yun-fat into a cyberpunk, and is being claimed as "the world's first full-process, AI-produced animated feature film." The big guns of the Chinese industry were out in force on the sidelines of the 27th Shanghai International Film Festival to make the announcements, too. They were led by Zhang Pimin, chairman of the China Film Foundation, who said AI work on these "aesthetic historical treasures" would give them a new look that "conforms to contemporary film viewing." "It is not only film heritage, but also a brave exploration of the innovative development of film art," Zhang said.
< This article continues on their website >
Posted by BeauHD from Slashdot
From the time-to-change-your-password department: An anonymous reader quotes a report from Cybernews: Several collections of login credentials reveal one of the largest data breaches in history, totaling a humongous 16 billion exposed login credentials. The data most likely originates from various infostealers. Unnecessarily compiling sensitive information can be as damaging as actively trying to steal it. For example, the Cybernews research team discovered a plethora of supermassive datasets, housing billions upon billions of login credentials. From social media and corporate platforms to VPNs and developer portals, no stone was left unturned.
Our team has been closely monitoring the web since the beginning of the year. So far, they've discovered 30 exposed datasets containing from tens of millions to over 3.5 billion records each. In total, the researchers uncovered an unimaginable 16 billion records. None of the exposed datasets were reported previously, bar one: in late May, Wired magazine reported a security researcher discovering a "mysterious database" with 184 million records. It barely scratches the top 20 of what the team discovered. Most worryingly, researchers claim new massive datasets emerge every few weeks, signaling how prevalent infostealer malware truly is.
< This article continues on their website >
Posted by BeauHD from Slashdot
From the major-anomaly department: SpaceX's Starship exploded on its test stand in South Texas ahead of an engine test, marking the fourth loss of a Starship this year. "In three previous test flights, the vehicle came apart or detonated during its flight," notes the Washington Post. No injuries were reported but the incident highlights ongoing technical challenges as SpaceX races to prove Starship's readiness for deep-space travel. From the report: In a post on the social media site X, SpaceX said that the explosion on the test stand, which could be seen for miles, happened at about 11 p.m. Central time. For safety reasons, the company had cleared personnel from around the site, and "all personnel are safe and accounted for," it said. The company is "actively working to safe the test site and the immediate surrounding area in conjunction with local officials," the post continued. "There are no hazards to residents in surrounding communities, and we ask that individuals do not attempt to approach the area while safing operations continue."
Starship comprises two stages -- the Super Heavy booster, which has 33 engines, and the Starship spacecraft itself, which has six. Before Wednesday's explosion, the spacecraft was standing alone on the test stand, and not mounted on top of the booster, when it blew up. The engines are test-fired on the Starship before it's mounted on the booster. SpaceX had been hoping to launch within the coming weeks had the engine test been successful. [...] In a post on X, Musk said that preliminary data pointed to a pressure vessel that failed at the top of the rocket. You can watch a recording of the explosion on YouTube.
< This article continues on their website >
Posted by msmash from Slashdot
From the for-what-it's-worth department: Simon Willison, commenting on the recent paper from Apple researchers that found state-of-the-art large language models face complete performance collapse beyond certain complexity thresholds: I thought this paper got way more attention than it warranted -- the title "The Illusion of Thinking" captured the attention of the "LLMs are over-hyped junk" crowd. I saw enough well-reasoned rebuttals that I didn't feel it worth digging into.
And now, notable LLM skeptic Gary Marcus has saved me some time by aggregating the best of those rebuttals together in one place!
[...] And therein lies my disagreement. I'm not interested in whether or not LLMs are the "road to AGI". I continue to care only about whether they have useful applications today, once you've understood their limitations.
Reasoning LLMs are a relatively new and interesting twist on the genre. They are demonstrably able to solve a whole bunch of problems that previous LLMs were unable to handle, hence why we've seen a rush of new models from OpenAI and Anthropic and Gemini and DeepSeek and Qwen and Mistral.
They get even more interesting when you combine them with tools.
They're already useful to me today, whether or not they can reliably solve the Tower of Hanoi or River Crossing puzzles.
Posted by msmash from Slashdot
From the lifelong-debates department: Apple software chief Craig Federighi has ruled out bringing macOS to the iPad, amusingly using a kitchen utensil analogy to explain the company's design philosophy. "We don't want to create a boat car or, you know, a spork," Federighi said in an interview. "Someone said, 'If a spoon's great, a fork's great, then let's combine them into a single utensil, right?' It turns out it's not a good spoon and it's not a good fork. It's a bad idea. And so we don't want to build sporks."
The new version of iPadOS, which will ship to consumers later this year, features dynamically resizable windows that users can drag by their corners and a menu bar that is accessible through swipe gestures or cursor movement.
Some observers might consider the iPad Pro itself a "convertible" product that blurs the line between tablet and laptop, he said. However, the Mac and iPad serve distinct purposes, he asserted. "The Mac lets the iPad be iPad," he said adding that Apple's objective "has not been to have iPad completely displace those places where the Mac is the right tool for the job." Rather than full convergence, Federighi said the iPad "can be inspired by elements of the Mac" while remaining a separate platform. "I think the Mac can be inspired by elements of iPad, and I think that that's happened a great deal."
