fidzu : computers

Longtime Slashdot reader walterbyrd shares a report from Fuel Cells Works: China says the AEP100, a megawatt-class hydrogen-fueled turboprop engine developed by the Aero Engine Corporation of China, has completed its maiden flight on a 7.5-ton unmanned cargo aircraft in Zhuzhou, Hunan. The 16-minute test covered 36km at 220km/h and 300 meters altitude, with the aircraft returning safely after completing its planned maneuvers. State media described it as the world's first test flight of a megawatt-class hydrogen-fueled turboprop engine. [...] The Aero Engine Corporation of China (AECC) says the result shows China now has a full technical chain for hydrogen aviation engines, from core parts to system integration, which is the kind of capability needed before any industrial rollout can begin. You can watch a video of the test flight here.

Read more of this story at Slashdot.

07 Apr 2026 7:00am GMT

"Humans have probably not evolved to see what we're seeing. It is truly hard to describe. It is amazing."

07 Apr 2026 3:50am GMT

An anonymous reader quotes a report from Reuters: A federal appeals court ruled on Monday that New Jersey gaming regulators cannot prevent Kalshi from allowing people in the state to use its prediction market to place financial bets on the outcome of sporting events. A three-judge panel of the Philadelphia-based 3rd U.S. Circuit Court of Appeals ruled 2-1 (PDF) in finding that the U.S. Commodity Futures Trading Commission has exclusive jurisdiction over the sports-related event contracts that Kalshi allows people to trade on its platform. The ruling marked the first time a federal appeals court has ruled on what has become the central issue in an escalating battle over the ability of state gaming regulators to police the activity of prediction market operators. Kalshi and companies like it allow users to place trades and profit from predictions on events such as sports and elections. States argue that firms like Kalshi are operating without required state licenses, in violation of gaming laws, including bans on wagers by those under 21. Those states include New Jersey, which last year sent Kalshi a cease-and-desist letter stating that its listing of sports-related event contracts on its platform violated state gambling laws that prohibit betting on collegiate sports. Kalshi sued the state, arguing its event contracts qualify as "swaps," a type of derivative contract, that under the Commodity Exchange Act can only be regulated by the CFTC, which had granted the company a license to operate a designated contract market (DCM). A lower-court judge had sided with New York-based Kalshi and issued a preliminary injunction, prompting New Jersey to appeal. But a majority of the judges on the 3rd Circuit panel concluded the Commodity Exchange Act likely preempted state law. "Kalshi's sports-related event contracts are swaps traded on a CFTC-licensed DCM, so the CFTC has exclusive jurisdiction," U.S. Circuit Judge David Porter wrote. The ruling was in line with the position advanced in other litigation by the CFTC under President Donald Trump's administration. The regulator last week sued Arizona, Connecticut and Illinois to prevent them from pursuing what it called unlawful efforts to regulate prediction markets.

Read more of this story at Slashdot.

07 Apr 2026 3:30am GMT

Anyone remember the KDE 4.0 themes Oxygen and Air? Well, several KDE developers have been working tirelessly to bring them back, which means they're patching it up, fixing bugs, and generally making these classic themes work well in the current releases of KDE Plasma 6. The last post regarding work on fixing Oxygen was a month and a half ago. With all that's happened in between, it feels like so much more time has actually passed. With this post, I'd like to do a sort of mid-term update summing up all of the improvements done so far. These improvements are not just my work, but also, as you'll see, the work of the lead Oxygen designer Nuno Pinheiro, of several seasoned KDE developers, and of new contributors to Oxygen as well. ↫ Filip Fila The effort to bring these themes back go much beyond just making them nominally work; the developers and designers are also making sure the themes work properly with all the new features that have come to KDE since the 4.x and 5.x days, like adaptive and floating panels, various forms of blur, and a ton more - which includes making sure the themes are fully compatible with Wayland, which introduced a slew of new visual glitches and issues to these old themes in recent years. They are also working on improving, updating, and expanding the Oxygen icon set, which should surely bring back a ton of memories. This work involves not just designing new icons for applications and other things that didn't exist back when Oxygen was current, but also fixing old icons that look blurry on modern setups, addressing cases where monochrome and colourful icons mismatch, and so on. They're clearly taking this very seriously. It seems to be an organic effort more and more people got involved with as time passed, and they're aiming to have these themes ready for Plasma 6.7, to be released in June of this year. You can already try the current versions today, but they do require the absolute latest version of KDE Plasma to work properly. More improvements are planned for the coming weeks. This whole thing brings a massive smile to my face, and is such a perfect illustration of why I love the KDE project and its approach and spirit. At this point in time, I personally can't imagine using any other desktop environment.

06 Apr 2026 11:31pm GMT

OpenAI is proposing (PDF) sweeping policy changes to help manage the societal disruption caused by advanced AI, including taxes on automated labor, a public wealth fund, and experiments with a four-day workweek. The company said the policy document offered a series of "initial ideas" to address the risk of "jobs and entire industries being disrupted" by the adoption of AI tools. Business Insider reports: Among the core policy suggestions is a public wealth fund, which would see lawmakers and AI companies work together to invest in long-term assets linked to the AI boom, with returns distributed directly to citizens. Another is that the government should encourage and incentivize employers to experiment with four-day workweeks with no loss in pay and offer "benefits bonuses" tied to productivity gains from new AI tools. The policy document also suggests lawmakers modernize the tax system and shift the tax base to corporate income and capital gains, rather than relying on labor income and payroll taxes that could be hit by a wave of AI-powered job losses. It also recommends taxes related to automated labor. OpenAI also called for the accelerated expansion of the US's electricity grid, which is already feeling the strain from a wave of data center construction and energy demand for training ever more powerful AI models.

Read more of this story at Slashdot.

06 Apr 2026 11:00pm GMT

The charter renewal gives Kennedy broad authority to pick anyone for the panel.

06 Apr 2026 10:34pm GMT

New model can respond to disruptions and figure out moves it wasn't trained for.

06 Apr 2026 10:18pm GMT

This is a great post, but obviously it hasn't convinced me: The folks waving their arms and yelling about recent models' capabilities have a point: the thing works. This project finished in three weeks. Compare that to Ringspace, a similarly-sized project that took me about six months of nights and early mornings to complete, while not doing my day job or being Dad to an amazing, but demanding toddler. I simply could not have built this project as well or as quickly without help. And as other developers have noted, this is the help that's showing up. I'm not entirely onboard with Mike Masnick's optimistic view of this technology's democratizing power. I don't think it's as easy to separate the tech from its provenance or corporate control. But CertGen, my certificate application, exists now. It didn't and couldn't without the help of a tool like Claude Code. Open source in particular needs to reckon with this, because the current situation of demanding developers starve and bleed themselves dry without support isn't tenable. We need to grapple with this. I'm not yet sure how it all breaks down, and anyone who says they do is lying, foolish, or fanatical. ↫ Michael Taggart If you disregard that "AI" models are trained on stolen data, that such data was prepared by exploited workers, that "AI" data centres have a hugely negative impact on the environment, that "AI" data centers are distorting the entire computing market, that "AI" models they feed the endless firehose of intentional misinformation, that they are wreaking havoc in education, that they increase your reliance on American big tech companies, that you pay "AI" companies for taking your work, that "AI" models are a vital component in the technofascist wet dreams of their creators, that they are the cornerstone of politicians' dream of ending anonymity, and that they contribute to racist and abusive policing, then yes, sometimes, they produce code that works and isn't total horseshit. It's a deeply depressing reversed "what have the Romans ever done for us?" that makes me sad, more than anything. I've seen so many otherwise smart, caring, and genuine people just shove all of these massive downsides aside for the mere novelty, the peer pressure, the occasional sense that their "lines of code" metric is going up. It's the digital equivalent of rolling coal.

06 Apr 2026 7:48pm GMT

If you're using Windows or macOS and have Adobe Creative Cloud installed, you may want to take a peek at your hosts file. It turns out Adobe adds a bunch of entries into the hosts file, for a very stupid reason. They're using this to detect if you have Creative Cloud already installed when you visit on their website. When you visit https://www.adobe.com/home, they load this image using JavaScript: https://detect-ccd.creativecloud.adobe.com/cc.png If the DNS entry in your hosts file is present, your browser will therefore connect to their server, so they know you have Creative Cloud installed, otherwise the load fails, which they detect. They used to just hit http://localhost:<various ports>/cc.png which connected to your Creative Cloud app directly, but then Chrome started blocking Local Network Access, so they had to do this hosts file hack instead. ↫ thenickdude at Reddit At what point does a commercial software suite become malware?

05 Apr 2026 1:59pm GMT

I have discovered and shared ~800 open source Rust CLI projects over the past 3 years.

03 Apr 2026 12:00am GMT

All I wanted was to learn how to play guitar, but ended up building a DIY kit for it.

28 Mar 2026 12:00am GMT

On Friday, July 18th, 2025, the Arch Linux team was notified that three AUR packages had been uploaded that contained malware. A few maintainers including myself took care of deleting these packages, removing all traces of the malicious code, and protecting against future malicious uploads.

30 Jan 2026 12:00am GMT