fidzu : geek

To design invisible drones, researchers have tried camouflage, transparent materials and light-bending optical systems. But engineers at Northwestern University used "motion blur," which an announcement from the school notes is the effect that makes fast-spinning fans seem to disappear. "The drone spins up to 25 times per second, which is too fast for the human eye to see clearly. While it isn't completely invisible, it morphs into a ghostly smudge that seamlessly blends into the background... " To design the drone, the Northwestern team first used a computational model to generate roughly 20,000 drone configurations capable of stable flight. Then, they used artificial intelligence (AI) and optimization algorithms to repeatedly rearrange the drones' major components, including a motor, propeller, circuit board, counterweight and batteries. After sifting through many different configurations, the algorithms determined the ideal placement of the drone's components to minimize its visibility from virtually every viewing angle while allowing for stable flight. After selecting promising candidates, the engineers simulated each drone spinning in flight and overlaid those images a hundred real-world backgrounds. Then, they used a perception model that approximates human vision to determine how noticeable each design appeared. Designs that blended into their surroundings received lower visibility scores. The team selected the 500 lowest-scoring designs and applied the optimization algorithm, which repeatedly adjusted the positions of components to further minimize those scores. "The design process was fully automated," [said Northwestern's associate CS professor Michael Rubenstein, who led the work]. "Then, when we were confident that a drone met all our criteria, we built it." They've named the drone "Phantom Twist"," and plan to design future iterations with more transparent materials or quieter propulsion to make it even less noticeable. The Northwestern team presented the work on July 16 at Robotics: Science and Systems 2026 in Sydney, Australia... Thanks to long-time Slashdot reader fahrbot-bot for sharing the news.

Read more of this story at Slashdot.

02 Aug 2026 10:09pm GMT

The Register looks at exactly why "It is practically impossible to move any non-trivial Word document out of MS Office to a non-MS suite and back again without it being more trouble than it's worth." OOXML, developed by Microsoft and first standardized by Ecma in 2006, became the ISO/IEC 29500 standard in 2008 after a grueling and adversarial process. Microsoft pursued standardization because it has always been a standards-led organization dedicated to maximizing the options for its customers. Or because it had to at gunpoint, while vowing silently to follow the letter of the law but stymie its intent. You decide... The Document Foundation (TDF) which spends its days worrying about such things, reports that Microsoft has effectively broken the standard by sticking with a transitional version as its default rather than the cleaner Strict variant. The result is that what Microsoft software renders is what Microsoft wants to render, despite nominal compliance... What we need is a test suite that can take any OOXML engine and test its compliance against what Microsoft is actually doing. That means the tooling wrapped around the spec has to account for proprietary dependencies that get smuggled in, such as fonts. It also means actively and continuously tracking the ground truth of Microsoft's evolving products and services. It doesn't need to be perfect, but it absolutely needs to be good enough. Compliant engines have to become good enough for a critical mass of users to coalesce around them. In an earlier article The Document Foundation reminded all software users that they have a choice. "When an institution sends a letter formatted with a proprietary font, embedded in a proprietary format, produced by proprietary software, it is not communicating information but perpetuating a dependency." "Digital sovereignty begins with the recognition that this is a choice: the file format is a choice, the font on the page is a choice, and the software is a choice."

Read more of this story at Slashdot.

02 Aug 2026 9:09pm GMT

Valve just published the Steam Survey results for July 2026, reports Phoronix, "and they point to a small uptick in Linux gaming use." Back in March Steam on Linux hit a record high of 5.33%, dropped to 4.52% in April, landed at 3.99% in May, and then in June was at 3.69%. The just-published numbers for July put Steam on Linux use at 4.01%, as an improvement over the prior two months but still well off the percentage highs of March and April... The July data puts SteamOS Holo as powering around 22% of Steam on Linux gaming systems. That's also with the Steam Machine now shipping, in addition to the Steam Deck.

Read more of this story at Slashdot.

02 Aug 2026 7:34pm GMT

NetBSD, the operating system specifically designed to run on anything from a supercomputer to a toothpick, just released version 11.0. There's a ton of changes and improvements here, such as a brand new port to RISC-V, which supports a number of the more popular RISC-V SoCs (sadly, not the one I have just yet). NetBSD 11.0 also adds initial support for the Qualcomm Snapdragon X Elite platform, as well as a port to the virt68k platform, which means the Motorola 68000 port in QEMU using paravirtualized devices. Speaking of virtualisation, they're also introducing a new MICROVM kernel for x86: New MICROVM kernel for x86, supporting both i386 and amd64, NetBSD 11.0 introduces a dedicated MICROVM kernel designed for extremely fast virtual machine boot, leveraging PVH boot, VirtIO MMIO, and multiple kernel optimizations, it can boot in about 10 ms on 2020-era x86 CPUs. ↫ NetBSD 11.0 release notes There's also improved support for Linux system calls in compat_linux, the npf firewall, and much more. Of course, the list of other improvements, buigfixes, and smaller changes is long, including many changes for old, outdated, or otherwise odd architectures and platforms, as is the NetBSD way. Which other operating system proudly lists substantial improvements to their PA-RISC, Motorola 68000, and Alpha ports, among others?

01 Aug 2026 9:14pm GMT

I have a policy to effectively never link to YouTube videos. I'll gladly make an exception for this one. Reflection is one of the most powerful concepts in Computer Science. Unfortunately, not every programming language is blessed enough to have it. In the 1980s, one company, Symbolics took the concept to the logical extreme. By representing EVERYTHING as objects; they created the most powerful (and inadvertently) least private operating system ever created! The company collapsed, but the ideas live on. Some modern languages got a full dose of reflection. Some…weren't so lucky. I ranked them all, and in the end I'll show you how I dragged C++ up a tier with my brand new runtime reflection library, CallMeMaybe! ↫ Laurie Wired The GitHub description of CallMeMaybe: CallMeMaybe (CMM) is a C++ runtime reflection library built on top of P2996 static reflection introduced in C++26. CMM purposefully mirrors many of the std::meta functions to provide a uniform interface, but allows runtime introspection, dynamic invocation, and instantiation by building a runtime reflection registry. Class members can be automatically traversed and reflected by simply adding ] as an annotation. CMM implements a custom type system to completely avoid RTTI requirements. ↫ CallMeMaybe GitHub page My YouTube linking policy will remain in place.

01 Aug 2026 9:05pm GMT

"We believe that a capture of Swift, an attempted capture of Swift, is very much in the cards."

01 Aug 2026 6:20pm GMT

Christopher Nolan's impressionistic remix of Homer's epic poem finds the man behind the myth.

01 Aug 2026 3:19pm GMT

Reddit may still be considering ending its licensing deal with Google.

01 Aug 2026 12:30pm 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

Tcl, or the "Tool Command Language", created and released by John Ousterhout in 1990, deserves a place among the greatest products of the human mind. Especially when combined with its better known graphical user interface Toolkit - Tk. In 1997 Ousterhout was awarded the ACM Software System Award for Tcl/Tk, an award given to institutions or individuals recognized for developing software systems with a lasting influence, reflected in contributions to concepts, in commercial acceptance, or both. ↫ Armen Barsegyan Everything you could ever possibly want to know about Tcl/Tk. There's nothing to add here; if this is up your alley - and you know if it is - just go ahead and read it, and stop wasting time here.

31 Jul 2026 10:44pm GMT

Good morning from JetBrains Berlin office!

01 Jun 2026 12:00am GMT

Just trying to answer one simple question: What if the terminal was 3D?

11 May 2026 12:00am GMT