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alternative_right shares a report from ScienceAlert: Engineers at Cornell University have created the blackest fabric on record, finding it absorbs 99.87 percent of all light that dares to illuminate its surface. [...] In this case, the Cornell researchers dyed a white merino wool knit fabric with a synthetic melanin polymer called polydopamine. Then, they placed the material in a plasma chamber, and etched structures called nanofibrils -- essentially, tiny fibers that trap light. "The light basically bounces back and forth between the fibrils, instead of reflecting back out -- that's what creates the ultrablack effect," says Hansadi Jayamaha, fiber scientist and designer at Cornell. The structure was inspired by the magnificent riflebird (Ptiloris magnificus). Hailing from New Guinea and northern Australia, male riflebirds are known for their iridescent blue-green chests contrasted with ultrablack feathers elsewhere on their bodies. The Cornell material actually outperforms the bird's natural ultrablackness in some ways. The bird is blackest when viewed straight on, but becomes reflective from an angle. The material, on the other hand, retains its light absorption powers when viewed from up to 60 degrees either side. The findings have been published in the journal Nature Communications.

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Despite predictions that AI would replace radiologists, healthcare systems worldwide are hiring more of them because AI tools enhance their work, create new oversight tasks, and increase imaging volumes rather than reducing workloads. "Put all that together with the context of an aging population and growing demand for imaging of all kinds, and you can see why Offiah and the Royal College of Radiologists are concerned about a shortage of radiologists, not their displacement," writes Financial Times authors John Burn-Murdoch and Sarah O'Connor. Amaka Offiah, who is a consultant pediatric radiologist and a professor in pediatric musculoskeletal imaging at the University of Sheffield in the UK, makes a prediction of her own: "AI will assist radiologists, but will not replace them. I could even dare to say: will never replace them." From the report: [A]lmost all of the AI tools in use by healthcare providers today are being used by radiologists, not instead of them. The tools keep getting better, and now match or outperform experienced radiologists even after factoring in false positives or negatives, but the fact that both human and AI remain fallible means it makes far more sense to pair them up than for one to replace the other. Two pairs of eyes can come to a quicker and more accurate judgment, one spotting or correcting something the other missed. And in high-stakes settings where the costs of a mistake can be astronomical, the downside risk from an error by a fully autonomous AI radiologist is huge. "I find this a fascinating demonstration of why even if AI really can do some of the most high-value parts of someone's job, it doesn't mean displacement (even of those few tasks let alone the job as a whole) is inevitable," concludes John. "Though I also can't help noticing a parallel to driverless cars, which were simply too risky to ever go fully autonomous until they weren't." Sarah added: "I think the story of radiologists should be a reminder to technologists not to make sweeping assertions about the future of professions they don't intimately understand. If we had indeed stopped training radiologists in 2016, we'd be in a real mess today."

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sinij shares news of the Trump administration surprising the auto industry by granting approval for "tiny cars" to be built in the United States. Bloomberg reports: President Donald Trump, apparently enamored by the pint-sized Kei cars he saw during his recent trip to Japan, has paved the way for them to be made and sold in the U.S., despite concerns that they're too small and slow to be driven safely on American roads. "They're very small, they're really cute, and I said "How would that do in this country?'" Trump told reporters on Wednesday at the White House, as he outlined plans to relax stringent Biden-era fuel efficiency standards. "But we're not allowed to make them in this country and I think you're gonna do very well with those cars, so we're gonna approve those cars," he said, adding that he's authorized Transportation Secretary Sean Duffy to approve production. [...] In response to Trump's latest order, Duffy said his department has "cleared the deck" for Toyota Motor Corp. and other carmakers to build and sell cars in the U.S. that are "smaller, more fuel-efficient." Trump's seeming embrace of Kei cars is the latest instance of passenger vehicles being used as a geopolitical bargaining chip between the U.S. and Japan. "This makes a lot of sense in urban settings, especially when electrified," comments sinij. "Hopefully these are restricted from the highway system." The report notes that these Kei cars generally aren't allowed in the U.S. as new vehicles because they don't meet federal crash-safety and performance standards, and many states restrict or ban them due to concerns that they're too small and slow for American roads. However, they can be imported if they're over 25 years old, but then must abide by state rules that often limit them to low speeds or private property use.

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U.S. and Canadian cybersecurity agencies say Chinese-linked actors deployed "Brickstorm" malware to infiltrate critical infrastructure and maintain long-term access for potential sabotage. Reuters reports: The Chinese-linked hacking operations are the latest example of Chinese hackers targeting critical infrastructure, infiltrating sensitive networks and "embedding themselves to enable long-term access, disruption, and potential sabotage," Madhu Gottumukkala, the acting director of the Cybersecurity and Infrastructure Security Agency, said in an advisory signed by CISA, the National Security Agency and the Canadian Centre for Cyber Security. According to the advisory, which was published alongside a more detailed malware analysis report (PDF), the state-backed hackers are using malware known as "Brickstorm" to target multiple government services and information technology entities. Once inside victim networks, the hackers can steal login credentials and other sensitive information and potentially take full control of targeted computers. In one case, the attackers used Brickstorm to penetrate a company in April 2024 and maintained access through at least September 3, 2025, according to the advisory. CISA Executive Assistant Director for Cybersecurity Nick Andersen declined to share details about the total number of government organizations targeted or specifics around what the hackers did once they penetrated their targets during a call with reporters on Thursday. The advisory and malware analysis reports are based on eight Brickstorm samples obtained from targeted organizations, according to CISA. The hackers are deploying the malware against VMware vSphere, a product sold by Broadcom's VMware to create and manage virtual machines within networks. [...] In addition to traditional espionage, the hackers in those cases likely also used the operations to develop new, previously unknown vulnerabilities and establish pivot points to broader access to more victims, Google said at the time.

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Meta is acquiring AI wearable startup Limitless, maker of a pendant that records conversations and generates summaries. "We're excited that Limitless will be joining Meta to help accelerate our work to build AI-enabled wearables," a Meta spokesperson said in a statement. CNBC reports: Limitless CEO Dan Siroker revealed the deal on Friday via a corporate blog post but did not disclose the financial terms. "Meta recently announced a new vision to bring personal superintelligence to everyone and a key part of that vision is building incredible AI-enabled wearables," Siroker said in the post and an accompanying video. "We share this vision and we'll be joining Meta to help bring our shared vision to life."

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An anonymous reader quotes a report from the New York Times: A few years ago, Paul Wieland, a 44-year-old information technology professional living in New York's Adirondack Mountains, was wrapping up a home renovation when he ran into a hiccup. He wanted to be able to control his new garage door with his smartphone. But the options available, including a product called MyQ, required connecting to a company's internet servers. He believed a "smart" garage door should operate only over a local Wi-Fi network to protect a home's privacy, so he started building his own system to plug into his garage door. By 2022, he had developed a prototype, which he named RATGDO, for Rage Against the Garage Door Opener. He had hoped to sell 100 of his new gadgets just to recoup expenses, but he ended up selling tens of thousands. That's because MyQ's maker did what a number of other consumer device manufacturers have done over the last few years, much to the frustration of their customers: It changed the device, making it both less useful and more expensive to operate. Chamberlain Group, a company that makes garage door openers, had created the MyQ hubs so that virtually any garage door opener could be controlled with home automation software from Apple, Google, Nest and others. Chamberlain also offered a free MyQ smartphone app. Two years ago, Chamberlain started shutting down support for most third-party access to its MyQ servers. The company said it was trying to improve the reliability of its products. But this effectively broke connections that people had set up to work with Apple's Home app or Google's Home app, among others. Chamberlain also started working with partners that charge subscriptions for their services, though a basic app to control garage doors was still free. While Mr. Wieland said RATGDO sales spiked after Chamberlain made those changes, he believes the popularity of his device is about more than just opening and closing a garage. It stems from widespread frustration with companies that sell internet-connected hardware that they eventually change or use to nickel-and-dime customers with subscription fees. "You should own the hardware, and there is a line there that a lot of companies are experimenting with," Mr. Wieland said in a recent interview. "I'm really afraid for the future that consumers are going to swallow this and that's going to become the norm." [...] For Mr. Wieland, the fight isn't over. He started a company named RATCLOUD, for Rage Against the Cloud. He said he was developing similar products that were not yet for sale.

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