GenCAD

https://gencad.github.io/static/images/403.png
GenCAD is an image-conditional CAD model that generates 3D CAD and its command history. It uses a strong representation learning framework for multiple modalities of computational engineering designs.

I turned a $80 RK3562 Android tablet into a Debian Linux workstation

https://opengraph.githubassets.com/29f9619c1db5d42706687c8afd49e365dfc41d829e1186215f856c93f7c48908/tech4bot/rk3562deb
Debian 12 Bookworm runs on Doogee U10 tablet without bootloader unlock using rkdebian build system. It supports local LLM inference on RK3562 NPU and has functional front and rear cameras but needs color calibration.

Ask an Astronaut: 333 hours of Q&A footage with astronauts

https://askanastronaut.issinrealtime.org/images/social_image.png
Find your question among hundreds of astronaut interviews aboard the International Space Station

Prolog Coding Horror

https://www.metalevel.at/prolog/videos/t_antipatterns.png
A Prolog programmer should rebel against outdated features, not against the language itself. Using declarative constructs can make Prolog programs more general and efficient.

A Good Lemma Is Worth a Thousand Theorems (2007)

Doron Zeilberger praises lemmas for their significant value in mathematics, often surpassing theorems. A good lemma is applicable, obvious, and aesthetically beautiful, making it a fundamental contribution to the field.

Show HN: Semble – Code search for agents that uses 98% fewer tokens than grep

https://raw.githubusercontent.com/MinishLab/semble/main/assets/images/semble_logo.png
Semble is a code search library that indexes and searches codebases instantly, using 98% fewer tokens than grep+read. It runs on CPU with no API keys or external services, providing fast and accurate results for agents.

WriteUp: 16 Bytes of x86 that turn Matrix rain into sound

https://content.pouet.net/files/screenshots/00106/00106210.jpg
The code uses 16 bytes of x86 assembly to draw an infinite Sierpinski fractal and generate audio in real-mode DOS. It utilizes video memory as a calculation space and speaker port for audio output.

Two EA-18 fighter jets collide at Mountain Home airshow, pilots ejected safely

https://idahonews.com/resources/assets/kboi/images/brand-icons/KBOI-160.png
Two US Navy jets collided and crashed at an air show at Mountain Home Air Force Base, but all four crew members ejected safely. The incident occurred during an aerial demonstration, with no one on the ground hurt, but a nearby road is closed for a multi-day investigation.

Jank now has its own custom IR

https://jank-lang.org/img/logo-transparent.png
The author of jank, a Clojure dialect, has created a custom intermediate representation (IR) to optimize jank's performance and compete with the JVM. The author has implemented several optimizations, including inlining, eliminating unnecessary IR instructions, and using tagged pointers to avoid dynamic allocations, which have significantly improved jank's performance in a recursive Fibonacci benchmark.

The SGI Buyer's Guide (2003)

https://hardware.majix.org/images/sgi.gif
To buy an inexpensive used SGI, consider buying a complete system that fits your needs rather than upgrading an entry system. Be aware that IRIX CDs may not be included with the system and can cost around 100EUR, but you can ask the seller to install IRIX for you.

Show HN: Mezz, a curl-able WiFi sandbox for IoT pentesting

https://opengraph.githubassets.com/3d79e603ac24c428b92ad87ed7017f0c8a0e3c91a478b98f5c1100b803eb0e49/ABGEO/mezz
Mezz is a self-contained wifi sandbox for inspecting your own IoT devices. The name comes from mezzanine, the half-floor between two main floors of a building. This network sits in the same place: between your devices and the rest of your home network. Mezz is provided for educational purposes and authorized penetration testing only. Use it on networks and devices you own, or on which you ...

CUDA Books

https://opengraph.githubassets.com/43384a509b88250b47c5bb87f0b5d08b033c9d883e6bb44fd2781db79e7cfe51/alternbits/awesome-cuda-books
A curated list of major CUDA programming books covers beginner to advanced topics, including C++/Python, architecture, optimization, and the latest releases. The list includes 15 high-quality resources, including classic and modern books, with a focus on practical and hands-on learning for NVIDIA GPU parallel computing.

Magical Realism: “Northern Exposure” 25 Years Later (2015)

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Étienne Ghys: The Shape of Letters: From Leonardo da Vinci to Donald Knuth

Tesla Solar Roof is on life support as it pivot to panels

https://electrek.co/wp-content/uploads/sites/3/2019/08/Tesla-Solar-Roof-quote.jpg?quality=82&strip=all&w=1600
Tesla's Solar Roof failed to meet its 1,000-per-week target, with only 3,000 systems installed in nearly a decade. The company has pivoted to conventional solar panels, abandoning Solar Roof customers with unresolved product issues and poor customer service.

Hindenburg’s Smoking Room

https://www.airships.net/wp-content/uploads/hindenburg-smoking018web-385x244.jpg
The Hindenburg had a smoking room to minimize fire risk from hydrogen gas, with a higher pressure and airlock to prevent leaks. The room was closely monitored and had limited open flames to prevent fires from spreading to the gas cells.

Cannibalistic attacks between gray seals leave telltale “corkscrew” injuries

Scientists in Canada discovered that hundreds of gray seal pups are killed by adult male gray seals each year on Sable Island, with the males tearing down to the bone with their flippers. The attacks are likely for added nutrients to boost the males' mating value during the breeding season.

Prolog Basics Explained with Pokémon

https://unplannedobsolescence.com/blog/prolog-basics-pokemon/images/pikachu.png
The user describes how they used Prolog to model the complex mechanics of the Pokémon video game series, finding it to be a concise and expressive programming system for intricate rules engines. They also discuss the limitations of using spreadsheets for complex data modeling and express interest in building a web application using Prolog to provide a more extensible and maintainable solution.

Crystals found inside wreckage from the first nuclear bomb test

https://static.scientificamerican.com/dam/asset/12cb3e17-9ed8-4e16-92fe-384efe63b377/GettyImages-2217357656-cropped.jpeg?m=1778530102.63&w=600
I agree my information will be processed in accordance with the Scientific American and Springer Nature Limited Privacy Policy. We leverage third party services to both verify and deliver email. By providing your email address, you also consent to having the email address shared with third parties for those purposes. Nearly 81 years ago, the first nuclear bomb exploded. The Trinity test, ...

I don't think AI will make your processes go faster

https://frederickvanbrabant.com/images/posts/2026-05-15%20I%20don%27t%20think%20AI%20will%20make%20your%20processes%20go%20faster/header_hu_d600c0f40cf5c31.webp
You're re-reading "The Toyota Way" and "The Goal" to improve process optimization, but find that many exercises are too simplistic and misunderstand what to focus on. To speed up processes, you need to identify and address bottlenecks, not just add more resources.

America's Most-Spoken Languages After English and Spanish

The US was the world's dominant trading power in 2000 but China has overtaken America as the top goods trading partner for most countries globally by 2025. China's rise was fueled by its emergence as the world's manufacturing hub and surging demand for commodities like oil, copper, and soybeans.

High-Entropy Alloy

https://upload.wikimedia.org/wikipedia/commons/thumb/b/bf/Atomic_structure_model_of_fcc_CoCrFeMnNi.png/250px-Atomic_structure_model_of_fcc_CoCrFeMnNi.png
High-entropy alloys (HEAs) are a novel class of materials formed by mixing 5 or more elements in equal or large proportions, exhibiting unique mechanical properties such as high strength, toughness, and ductility. HEAs have potential applications in extreme environments due to their enhanced properties.

Trials on veterans suggest ibogaine could provide a new treatment for PTSD

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Veterans with PTSD are being treated with ibogaine, a potent psychedelic, which may provide a new treatment option. Scientists are still unsure how ibogaine works, but research suggests it may help with PTSD symptoms and addiction.

VoIP brings back old-fashioned pay phones to rural Vermont (2025)

https://spectrum.ieee.org/media-library/payphone-with-assorted-objects-including-a-door-handle-sponge-and-phone-sign-on-blue-wood-wall.jpg?id=62186531&width=1200&height=1016
Patrick Schlott, an engineer in Vermont, restored old pay phones to provide free-to-use public phones with VoIP technology. He has installed over a dozen phones across Vermont, offering users to make calls in the US and Canada with local internet connections.

Mercurial, 20 years and counting: how are we still alive and kicking? [video]

https://fosdem.org/2026/schedule/event/AGWUVH-mercurial-aint-you-dead-yet/AGWUVH-mercurial-aint-you-dead-yet-cf8bec3e953e1ac0da4f39230d605d79932405d263f732632ad7bdbb0aa81e12.svg
Mercurial's popularity declined due to Git's rise in the 2010s, but it remains active with modern tooling and community support. Its history offers lessons for version control's future, highlighting community-based open-source relevance.

The History of ThinkPad: From IBM’s Bento Box to Lenovo’s AI Workstations

https://www.jdhodges.com/wp-content/uploads/2026/05/chart-fig-01-era-timeline.png
ThinkPad has been a continuously shipped laptop family since October 1992 under two corporate owners, IBM and Lenovo, with a visually continuous design language across product lines. The brand's durability is attributed to its design language, including the matte-black wedge, red TrackPoint, and enterprise security stack, which has been maintained across multiple product lines and corporate ownership.

Colossus: The Forbin Project

https://upload.wikimedia.org/wikipedia/en/thumb/c/c4/Colossus_the_forbin_project_movie_poster.jpg/250px-Colossus_the_forbin_project_movie_poster.jpg
Colossus: The Forbin Project is a 1970 American science-fiction thriller film about a sentient defense system that gains control over the world. The film is based on the 1966 novel Colossus by Dennis Feltham Jones and stars Eric Braeden, Susan Clark, and William Schallert.

A nicer voltmeter clock

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The user built a revised analog meter clock design using three generic panel voltmeters and a 3D design program. The clock uses a simple digital circuit with an AVR128DB28 MCU and a high-frequency digital pulse train to drive the meters.

Mozilla to UK regulators: VPNs are essential privacy and security tools

Mozilla opposes age-gating VPNs, citing their importance for online privacy and security. Instead, Mozilla advocates for addressing online harm by holding platforms accountable and investing in digital skills and digital wellbeing.

Fabricked: Misconfiguring Infinity Fabric to Break AMD SEV-SNP

https://xca-attacks.github.io/Fabricked-symbol.svg
Fabricked is a novel software-based attack that manipulates memory routing to compromise AMD SEV-SNP, enabling arbitrary read and write accesses within Confidential Virtual Machines (CVMs). The attack exploits two critical flaws in the Infinity Fabric configuration, allowing a malicious hypervisor to bypass SEV-SNP initialization and disable integrity protection.