fidzu : geek

Gluons are the quantum 'Gorilla Glue' involved in binding quarks together, ScienceAlert reminds us. But for nearly 50 years, physicists have hunted for "glueballs", exotic particles predicted by this theory of the strong interaction - the only type of particle in nature composed entirely of force mediators: Now, a collaboration working at a collider in Beijing says it has the clearest evidence yet that a known particle called X(2370) is dominated by one of these elusive states... Physicists sifted through the wreckage of high-energy particle collisions to find strong evidence of this glueball, made predominantly of gluons - massless force carriers of the strong interaction between quarks... The new evidence for this exotic, unstable glueball's ephemeral existence comes from a recent preprint on arXiv, presented at the International Conference on High Energy Physics in Brazil... This collaboration uses the Beijing Electron Positron Collider II, a particle accelerator and collider that smashes electrons into their antimatter counterparts, called positrons, to probe perplexing particle physics. The resultant glueball is an "unprecedented form of matter," says Jin Shan, a particle physicist at Nanjing University and one of the research team's leaders. "It not only enables the theory describing strong interactions to pass its most rigorous test, but also vastly expands the boundaries of our understanding of the physical world," he told Fan Chen at South China Morning Post... Previously, in a study published in the journal Physical Review Letters in 2024, the researchers analyzed 10 billion meson decay events. They measured the X(2370) particle's mass and spin parity - a property that dictates its interactions and almost-instantaneous decay - for the first time, finding complete agreement between their experimental values and predictions. Now, they've identified its additional decay modes and determined its flavor-singlet nature, "the most important characteristic of a glueball...." The authors describe their work as the clearest experimental result to emerge from nearly 50 years of glueball searches, supporting the long-standing theoretical prediction that gluons can bind together into a new form of matter. The discovery ""highlights advances in technology and analytical techniques that have recently revealed another decades-in-the-making physics mystery," the article points out. "More experiments are needed to further confirm and constrain the prototypes of the highly esoteric glueball; in other words, more particle smashing."

Read more of this story at Slashdot.

24 Aug 2026 11:34am GMT

The long legal battle over ownership of Linux "is closer than ever to ending," reports the Register, "after a panel of three judges ruled a claim against IBM and Red Hat isn't valid, and that time has expired for further action." In 2021, an heir to SCO settled with IBM for $14.25 million - a sum that reflects the fact SCO had for years failed to produce strong evidence to back its claims. Another of SCO's legal successors, Xinuos, filed a new claim that IBM should be on the hook because Big Blue knew it did not own the code it contributed to Linux but instead had a non-exclusive license to use it. Xinuos argued that when IBM contributed Project Monterey code to Linux [25 years ago], it breached that license. Xinuos eventually took that argument to the US District Court for the Southern District of New York - and failed to convince it that IBM and Red Hat had a case to answer. Xinuos appealed, and on August 10th the United States Court of Appeals for the Second Circuit decided [PDF] not to revisit the District Court's decision, agreeing that the original legalese governing Project Monterey means it's too late to re-litigate the matter. The Appeals Court also agreed that Xinuos tried to frame the case as a licensing issue but failed, instead arguing that the issue was really about ownership. That ain't all, folks, because Xinuos intends to file a petition to have the case re-heard by the full bench of the Court of Appeals. That hardly ever happens, unless the court finds significant errors or major legal issues that make a rehearing worthwhile. Law firm Kaplan says the Second Circuit has allowed reviews of less than 0.03 percent of the cases it has handled. So perhaps this matter is now close to a final resolution. Back in 2000 Slashdot interviewed one of the presidents of SCO.

Read more of this story at Slashdot.

24 Aug 2026 7:34am GMT

A Pew Research senior data scientist analyzed 500,000 English-language webpages from the past five years with an AI detection tool to estimate how many were likely written or edited by AI: Of all the pages in this sample, 10% show significant signs of AI authorship... If we filter old webpages out of our samples and look at only the pages published after the release of ChatGPT, the trend is even more pronounced. In the July 2026 snapshot, signs of AI authorship can be found in over one-third of pages published after ChatGPT was released. This is in line with other studies that have shown that large shares of recently published pages on the internet were likely written or substantially edited by AI. AI-authored text is not evenly spread across the web. When ChatGPT was first released, the kinds of linguistic patterns that can signal AI authorship appeared at similar rates across the main top-level web domains (.com, .org, .edu and .gov). But in samples from 2026, around one-in-ten pages with a .com domain show signs of AI authorship - about double the share on .org domains (4.6%), and 10 times the rate on .edu or .gov domains (both around 1%). They even identified specific ways online text has changed, "comparing the internet of today to a snapshot from 2023." Em dashes appear twice as often Oxford commas increased 63%. Words used more frequently by AI (like "delve," "interplay" or "testament") have more than doubled in usage. "Negative parallelism" comparisons ("it's not just X, it's Y") have nearly tripled.

Read more of this story at Slashdot.

24 Aug 2026 4:34am GMT

"The Chang'e 7 mission does not meet the conditions for launch."

23 Aug 2026 2:30pm GMT

Enormous eruptions altered Earth's climate and societies all over the globe.

23 Aug 2026 11:02am GMT

Hibernation cuts down on synapses, but mice seem to retain memories anyway.

22 Aug 2026 11:22am GMT

When I wrote about using Windows 11 for a month as part of the ongoing OSNews fundraiser (keep donating to get me to do the same for macOS!), one of the things I mentioned was that "the modern desktop context menu has its own classic Win32 context menu". This is, in fact, a long-standing complaint I've repeatedly used as the perfect example of just how chaotic and low-quality Windows has become. Thankfully, and naturally I fully attribute this to my repeated complaints (*), Microsoft has been working on a brand new, faster, configurable context menu, and Neowin actually reviewed it. If you ask me, this revamped context menu addresses just about the biggest problem users had with the one in Windows 11, and that is the need to click through more buttons than necessary to do simple things like renaming a file or opening its properties. That problem is now basically gone. I have no issues with the new design. It looks modern, it feels more consistent with the rest of Windows, and even though all the new sections can still make it look a little busy, you now have the option to make it as simple or as button-packed as you want. That should cover most use cases and preferences well. I'd even say that when the new context menu becomes available to everyone, my guide on how to bring back the classic context menu might become obsolete. ↫ Ivan Jenic at Neowin The biggest reason I'm linking to this is not because I care about whatever monster of a context menu Windows users are having to deal with. No, I'm only linking to this because I never in my life imagined I'd be linking to a review of a context menu. I mean, at least it's not the chess application icon. That would be embarrassing. I get a perverse sense of joy out of this.

19 Aug 2026 9:58pm GMT

A great and concise history of the run-up to MS-DOS 2.0. Yet, there was a nagging feeling that a single-tasking CP/M clone was inadequate for the new generation of personal computers. Digital Research released multi-user, multitasking MP/M-86 in September 1981 and announced the single‑user multitasking Concurrent CP/M in early 1982. In response, Microsoft came up with a plan for tiered approach to its operating systems: single-user/single-tasking MS-DOS at the bottom; multi-user/multitasking XENIX at the top; and in the middle, something called XEDOS: a single-user version of XENIX. This "pyramid of upward-compatible operating systems" was announced in a Byte Magazine editorial in January 1982. ↫ Nemanja Trifunovic I've always found this tiered approach fascinating, and the world surely would've looked quite different had Microsoft been able to make it work. I doubt Windows NT would ever have existed, and most of the world would probably be running a XENIX-based Windows today (all else being equal, which is of course unlikely and silly). Regardless, MS-DOS 2.0 contained a few UNIX-like utilities to deal with its brand new support for directory trees and other new features, and even had a /dev directory.

18 Aug 2026 9:59am GMT

If you thought pervert glasses weren't bad enough, Apple is taking it up a notch by adding cameras to its AirPods. Apple is working on camera-equipped AirPods that appear to be nearly ready to launch, based on a video MacRumors found in the macOS Tahoe 26.7 release candidate. In a short demo, a man holds a book up so the camera in the AirPods can see the title. "With Visual Intelligence, your world becomes savable. See something you like? Just ask me to save it for later," says the voiceover text. ↫ Juli Clover at MacRumors AirPods are tiny. I've seen people use them at the gym. I've seen them on playgrounds. I've seen them around swimming pools. People use them at the beach. They're used at schools. In locker rooms. Tiny cameras in tiny AirPods that can photograph anything in front of the user are a pervert's wet dream. Abusers are going to love this. Why wear bulky glasses anyone can see and try to demand you take off, when you can wear tiny AirPods that have already been fully normalised in society? Was there not a single woman or parent on the team that made this? All over the United States, people are destroying Flock surveillance cameras. More and more communities are rising up and demanding these things removed from their streets and neighbourhoods. The awareness of just how pervasive mass government surveillance has become is growing, and Silicon Valley's complicity is not exactly a secret. And in this climate of rapidly growing concern and anger, Apple is going to add tiny cameras to its tiny AirPods. Was there not a single person of colour or protester on the team that made this? How detached from reality do you have to be to greenlight something like this? Does anyone - regardless of skin colour, gender, or political leaning - want even more cameras around them?

18 Aug 2026 9:41am GMT

Over the last few weeks, we have been doing research on the integration of our official distribution packages when installed on a target system. In this context we have been looking at the current uses of alpm-install-scriptlet(5) files and alpm-hooks(5) in around 120 package source repositories (alpm-source-repo(7)) to better understand the underlying functionality and use-cases these two integrations offer and target. In this article we are going to look at how these two systems work, how Arch Linux is currently using them and attempt to provide suggestions for when to use which. Learning about alpm-hooks(5) and alpm-install-scriptlet(5) files …

09 Aug 2026 12:00am GMT

This is just a short note on my blog that I have resigned from Arch Linux a package maintainer, developer and security team. I've spent around 10 years as an AUR maintainer, security team, Package Maintainer and then Developer. I implemented support for debug packages, did the initial POC work that would become the git migration and even somehow managed to pull of an online conference during The Plague with the help of others.

01 Aug 2026 12:00am GMT

Good morning from JetBrains Berlin office!

01 Jun 2026 12:00am GMT