nerd

13 Oct 2026

Slashdot

A New 'Super Ice' Is 10 Times Stronger, Bringing It Close to The Strength of Concrete

Researchers have created a strengthened "BioPykrete" by combining ice with cellulose nanocrystals and a custom protein that binds the plant-based crystals to the ice structure. In small-scale tests, the material was about 10 times stronger than regular ice and absorbed 70 times more energy before breaking. ScienceAlert reports: Instead of wood pulp's larger, disordered fibers, the researchers used cellulose nanocrystals here. Cellulose is the main structural material in plants, and in nanocrystal form, it can act as a microscopic strengthening agent for other materials, including ice -- essentially stopping cracks from spreading easily. The protein used here was called CBM3a-AFPIII, a combination of an antifreeze protein (AFP) and a carbohydrate-binding module (CBM). Its job was to act like glue, keeping the cellulose nanocrystals and ice bonded together. It's a clever approach, and the researchers think that by tweaking their ingredients and methods, they might be able to improve their 'super ice' even further. "Optimizing solidification kinetics and freezing protocols, alongside developing diverse AFP-CBM variants, could yield even higher-strength composites," write the researchers. Besides further tests of the durability of the material, the researchers are also keen to take a closer look at how cracks propagate through BioPykrete, to confirm that the underlying strengthening mechanisms are what they think they are. Further down the line, this approach could open up a whole new landscape for materials used in packaging, construction, and more: Using a custom protein to bring two unlikely compounds (ice and cellulose) together. "By bridging the gap between recombinant protein design and structural engineering, we have developed a high-performance material specifically engineered for the rigors of the world's most extreme environments," write the researchers. The findings have been published in the journal Colloids and Surfaces B: Biointerfaces.

Hacker News

Denmark set to allow return of 'physical force' in school

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13 Oct 2026 6:27am GMT

Threat of AI share crash puts world financial stability at risk, says IMF

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13 Oct 2026 5:57am GMT

Slashdot

Linus Torvalds On Why AI Works For Him

An anonymous reader quotes a report from ZDNet: Many open-source developers still dislike AI. The latest example is System76 banning AI-generated content from its COSMIC desktop. At Open Source Summit Europe, Linux creator Linus Torvalds offered a different take: "I actually really like using AI," Torvald told Dirk Hohndel, his good friend and head of Ericsson Software Technology, in their latest discussion. [...] Torvalds said, "I think that you need to be very careful using AI when you're doing something real and important." Torvalds explained he hadn't always felt that way about AI programming. "I used to think it was just not very good -- but now I'm at the point where I actually really like using AI." "To be fair," he continued, "I don't do a lot of kernel programming. I'm a maintainer. The Linux kernel is a project where other people do the real work, and I act as the collection point. But I still enjoy programming immensely. I think AI is a wonderful tool if you use it correctly and treat it as a tool, and I find it makes programming much more enjoyable." Torvalds recalled, "I started programming in 1981 or so, and back then computers were much simpler, and you could understand what they were doing, and also the programs you compared your own programs to were much simpler." "It's a different story today," Torvalds said. "The bar in software engineering has grown so high that it's hard to see your own small efforts as worth anything, because you're used to all these polished, professional programs. [...] A lot of people make fun of vibe coding, but I think it's a wonderful way to find joy in programming. It makes you feel like you're doing something relevant. It allows you, as a new programmer, to do things that you would otherwise have a really hard time with." He continued: "I love the concept of AI as a gateway drug because I was working on my own toy project, the guitar pedal, and I knew what I was doing. I had a user interface that I had written myself in C that was running on a microcontroller that was running on this small screen, and I was like, "This is just stupid. It looks like something from the '80s; I wanted it to look like something from this century. But I don't do Java. I do kernels." "So, I use AI to do the things that I'm bad at," Torvalds went on, "I'd seen all the same YouTube videos you have. Give AI a prompt, and it will do it. So I gave it a prompt, and it did it, and it was horrendous. Then I said, 'Hey, look! I already did this in C. I did it the right way. It's just ugly." Torvalds acknowledged that AI tools are helping identify security vulnerabilities and improve the Linux kernel, but at the cost of overwhelming maintainers with questionable bug reports and superficial fixes. He called some submissions "mindless band-aid kind of patches." That said, despite AI's growing influence, Torvalds believes Linux's success comes from steady, incremental development rather than sweeping changes. "I'm a big believer in the whole incremental small changes that, over time, turn into big features," he said. The development goal remains "incremental improvement and steady progress all the time."

Hacker News

A look at OpenAI’s math that’s claimed computes faster Fourier transforms

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13 Oct 2026 2:46am GMT

12 Oct 2026

Slashdot

Firefox 158 Now Available With JPEG-XL Support By Default

Firefox 158 is now available with JPEG XL image support enabled by default, making .jxl images a standard part of the browser rather than an experimental feature. The release also adds JPEG XL to Firefox's default image Accept header, improves Smart Window form filling, and brings new CSS typed-arithmetic support for developers. Phoronix reports: At long last, Firefox 158 is ready to go with JPEG-XL image support as an alternative to the likes of WebP, JPEG, PNG, and GIF. The default HTTP Accept header for image requests also now supports "image/jxl" for the JPEG-XL image format. Prior releases of Firefox had JPEG-XL gated by an experimental option. Firefox 158 also now supports filling forms faster in Smart Window when clicking into a form field or selecting Fill from sources. On the developer side, CSS typed arithmetic are now supported to use functions like calc() to divide two values of the same data type even if of different units. Developer changes and release binaries can be found at their respective links.