fidzu : computers

"Saturn and some of its 274 moons are pretty weird," writes Smithsonian magazine: [Saturn moon] Titan has strangely few impact craters, Hyperion is tiny and misshapen, and Iapetus has a tilted orbit. What's more, planets tend to wobble along their rotational axes as they spin, like an off-kilter spinning top in the moments before it topples over. Formally called precession, scientists have long thought that Saturn's wobble rate should match Neptune's because they're probably gravitationally linked. However, data from NASA's Cassini spacecraft, which studied the ringed planet from 2004 to 2017, revealed that Saturn's precession rate is slightly speedier than Neptune's. In 2022, some researchers suggested that the destruction of a hypothetical moon, called Chrysalis, around 160 million years ago may have knocked Saturn out of sync and formed the pieces that became the planet's rings. But this work implied that Chrysalis probably would've crashed into Titan, posing a major problem, study co-author Matija Äuk, an astronomer at the SETI Institute, tells New Scientist's Leah Crane. In that case, Chrysalis' debris couldn't have become the rings, he says. So, Äuk and his colleagues used computer simulations to investigate what would happen if Chrysalis did smack into Titan. If that happened around 400 million years ago, they found, the crash would've wiped away Titan's craters and made its orbit more elliptical. The altered path may have slowly pushed the trajectories of other moons, which then scraped against one another and left chunks of ice and rock that now make up Saturn's rings. The timing seems to align with the rings' estimated age of roughly 100 million years. Additionally, one piece of kicked-up debris may have formed the weird moon Hyperion, which may have subsequently tilted the orbit of the moon Iapetus, according to the analysis. The scenario could also resolve Saturn's unexpected wobble, which is currently "a little bit too fast," Äuk tells Jacopo Prisco at CNN. The study has been accepted for publication in the Planetary Science Journal, and is already available on the preprint server arXiv.

Read more of this story at Slashdot.

02 Mar 2026 8:36am GMT

First wave of Ryzen AI desktop CPUs targets business PCs rather than DIYers.

02 Mar 2026 8:00am GMT

As the Mobile World Conference begins in Spain, Lenovo brought a new attachable accessory for their laptops - an AI agent. CNET reports: The little circular module perches on the top of your Lenovo laptop display, attached via the magnetic Magic Bay on the rear. The module is home to an adorable animated companion called Tiko, who you can interact with via text or voice... [I]t can start and stop your music, open a web page for you or answer a question. You can also interact with it by using emoji. Give it a book emoji, for example, and it will pop on its glasses and sit reading with you while you work... The company wants to sell the Magic Bay accessory later this year - although it doesn't know exactly when, or how much it will cost. It even comes with a timer (for working in Pomodoro-style intervals) - but Lenovo has also created another "concept" AI companion that CNET describes as "a kind of stationary tabletop robot, not dissimilar to the Pixar lamp, but with an orb for a head." With a combination of cameras, microphones and projectors, the AI Workmate can undertake a variety of tasks, including helping you generate and display presentations or turn your written work or art into a digital asset... It's robotic head swivelled around and projected the slides onto the wall next to me. Lenovo created a video to show this "next-generation AI work companion" - with animated eyes - "designed to transform how modern professionals interact with their workspace." It bridges the physical and digital worlds - capturing handwritten notes, recognizing gestures, summarizing tasks, and proactively helping you stay ahead of your day. The moment you sit down, Lenovo AI Workmate greets you, surfaces priority tasks, and keeps your work organized without switching apps or losing context. From turning sketches into presentations to projecting information for instant collaboration, [it] brings on-device AI intelligence directly to your desk - secure, responsive, and always ready... It's not just software. It's a smarter way to work. It looks like Lenovo once considered naming it "AI Sphere" (since that name still appears in its description on YouTube). Lenovo also showed another "concept" laptop idea that PC Magazine called "futuristic": The ThinkBook Modular AI PC looks like a traditional laptop at first glance, but a second, removable screen fastens onto the lid. You can swap that screen onto the keyboard deck (in place of the keyboard, which can then be used wirelessly), or use it alongside the laptop as a portable monitor, attached via an included cable.... While Lenovo is still working on this device, and it's very much in the concept phase, it feels like one of its best-thought-out prototypes, one likely to make it to store shelves at some point. Another "concept" laptop is Lenovo's Yoga Book Pro 3D Concept, ofering directional backlight and eye-tracking technology for the illusion of 3D (playing slightly different images to each of your eyes). It offers gesture control for 3D models, two OLED displays, and some magical "snap-on pads" which, when laid on the display - make the GUI appear on the screen for a new control menu to "provide quick-access shortcuts for adjusting lighting, viewing angle, and tone".

Read more of this story at Slashdot.

02 Mar 2026 5:35am GMT

If U.S. automakers turn their backs on electric vehicles, "their sales outside the U.S. will shrivel," warns Bloomberg. [Alternate URL.] They're already falling behind on the technology, relying on a 100% U.S. tariff on Chinese EVs to keep surging rivals like BYD Co. at bay.... While the American automakers "mostly understand the challenge in front of them, they don't have full plans" to confront it [said Mark Wakefield, head of the global automotive practice at consultant AlixPartners]... "Now is a great time for the V-8 engine," said Ryan Shaughnessy, the Mustang's brand manager. "We've done extensive customer research in multiple cities, looking at a variety of powertrains, and the V-8 is always the number-one choice." It isn't just customers. U.S. automakers have long been run by "car guys:" enthusiasts who live for the bone-shaking rumble of a big engine. For them, quiet and smooth EVs - even the absurdly fast ones - can't satisfy that craving. They're convinced many American car buyers share the same enthusiasm for what Shaughnessy described as "the sound and roar of the V-8." Wall Street couldn't be happier with the new direction... Ford's fortunes are also on the rise, as it's predicting operating profits could grow by as much as 47% this year to $10 billion. Ford's stock has risen nearly 50% over the last 12 months. Under the previous environmental rules, automakers effectively had to sell zero-emission vehicles in growing numbers to offset their gas-guzzlers. When they fell short, they had to buy regulatory credits from EV companies such as Tesla Inc. or face penalties. GM spent $3.5 billion on credits from 2022 to the middle of 2025. Now, according to JPMorgan Chase & Co. analyst Ryan Brinkman, GM and Ford each have "billion dollar tailwinds"... [T]he hangover from all that new horsepower could leave US automakers lagging their Chinese rivals who already build the world's most advanced - and lowest priced - electric cars. Indeed, there is much talk in Detroit about the competitive tsunami that will be unleashed on American automakers once Chinese car companies find a way to break through trade barriers now protecting the US market. [Ford Chief Executive Officer Jim] Farley even calls it an "existential threat"... "They're going to build as many V-8 engines and big trucks as they can get out the factory doors," said Sam Fiorani, vice president of vehicle forecasting for consultant Auto Forecast Solutions. "And as the rest of the world develops modern drivetrains, newer batteries and better electric vehicles, GM and Ford in particular are going to find themselves falling even further behind." The article notes GM "continues to develop battery-powered vehicles, and CEO Mary Barra said the automaker would begin offering a 'handful' of hybrids soon," while Ford and Stellantis "have plans to launch extended-range electric vehicles, or EREVs, a new kind of plug-in hybrid with an internal combustion engine that recharges the battery as the vehicle drives down the road." But while automakers may be investing in future EV vehicles, they're also "leaning into the lucre that comes from selling millions of fossil-fuel vehicles in a rare moment of loosened regulation."

Read more of this story at Slashdot.

02 Mar 2026 2:34am GMT

I had no idea, but apparently, you can just use newline characters and tabs in URLs without any issues. Notice how it reports an error if there is a tab or newline character, but continues anyway? The specification says that A validation error does not mean that the parser terminates and it encourages systems to report errors somewhere. Effectively, the error is ignored although it might be logged. Thus our HTML is fine in practice. ↫ Daniel Lemire This reminds me of the "Email is easy" quiz.

01 Mar 2026 9:09pm GMT

Some creatures can dramatically alter their internal temperature and outlast storms, floods and, predators

01 Mar 2026 12:07pm GMT

Are you not at all interested in upgrading to macOS Tahoe, and getting annoyed at the relentless notification spam from Apple trying to trick you into upgrading? The secret? Using device management profiles, which let you enforce policies on Macs in your organization, even if that "organization" is one Mac on your desk. One of the available policies is the ability to block activities related to major macOS updates for up to 90 days at a time (the max the policy allows), which seems like exactly what I needed. Not being anywhere near an expert on device profiles, I went looking to see what I could find, and stumbled on the Stop Tahoe Update project. The eventual goals of this project are quite impressive, but what they've done so far is exactly what I needed: A configuration profile that blocks Tahoe update activities for 90 days. ↫ Rob Griffiths All you need to do is clone a random GitHub repository, set all its scripts to executable, generate two random UUIDs, insert those UUIDs into one of the scripts in the GitHub project folder you just cloned, run said script, open System Settings and go to Privacy & Security > Profiles, install the profile the script created, click install in two different dialogs, and now you have blocked Apple's update notification spam! Well, for 90 days that is. I honestly don't understand how normal people are supposed to use macOS. The amount of weird terminal commands you need just to change basic settings is bewildering. macOS definitely isn't ready for the desktop if they expect users to use the terminal for so many basic tasks. I'm glad I'm using Linux, where I don't have to deal with the terminal at all.

28 Feb 2026 10:09pm GMT

If this isn't catnip to the average OSNews reader, I don't know what is. Windows 95 is a comprehensive upgrade to the Windows 3.1 and Windows for Workgroups 3.11 products. Many changes have been made in almost every area of Windows, with the user interface being no exception. This paper discusses the design team, its goals and process then explains how usability engineering principles such as iterative design and problem tracking were applied to the project, using specific design problems and their solutions as examples. ↫ Kent Sullivan This case study was written in 1996 by Kent Sullivan, who joined the Windows 95 user interface team in 1992. I consider the second half of the '90s as the heyday of user interface design, with Windows 9x, Apple's Platinum in Mac OS 8 and 9, and BeOS' Tracker/Deskbar as the absolute pinnacles of user interface design. Coincidentally, this also seems to mark the end of a more scientific, study-based approach to designing graphical user interfaces. Reading through this particular case study for Windows 95 feels almost quaint. Where are the dozens of managers pushing for notification spam, upsells, and dark patterns to enable expensive data-hoarding services? Why are none of the people mentioned in the study talking about sneaky ways to secretly and silently convert your local account to an online account? Where are all the "AI" buttons? Why is there n chapter on how to trick people into enabling telemetry data? The user interfaces of the late '90s were the last ones designed by people who actually cared, by people who approached the whole process with the end user in mind, rooted in scientific data collected by simply looking at people use their ideas. They were optimised for the user as best they could, instead of being optimised for the company's bottom line. It's been downhill ever since.

28 Feb 2026 9:10pm GMT

The Defense Department pressured Anthropic to drop restrictions on how its AI can be used by the military.

28 Feb 2026 8:00pm 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

While starting this post I realized I have been maintaining personal infrastructure for over a decade! Most of the things I've self-hosted is been for personal uses. Email server, a blog, an IRC server, image hosting, RSS reader and so on. All of these things has all been a bit all over the place and never properly streamlined. Some has been in containers, some has just been flat files with a nginx service in front and some has been a random installed Debian package from somewhere I just forgot.

19 Jan 2026 12:00am GMT

In the recent blog post on the work funded by Sovereign Tech Fund (STF), we provided an overview of the "File Hierarchy for the Verification of OS Artifacts" (VOA) and the voa project as its reference implementation. VOA is a generic framework for verifying any kind of distribution artifacts (i.e. files) using arbitrary signature verification technologies. The voa CLI ⌨️ The voa project offers the voa(1) command line interface (CLI) which makes use of the voa(5) configuration file format for technology backends. It is recommended to read the respective man pages to get …

11 Jan 2026 12:00am GMT