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Lego MRI Scanners donated to hospitals to help children cope with anxiety (2022)
The LEGO Foundation to donate LEGO® MRI Scanners to hospitals globally
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The latest blog posts to take off on Hacker News. 80,908 posts.
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Wayfire 0.8
Hello everyone! It has been nearly three years since I last wrote to this blog. Fortunately, that does not mean Wayfire’s development has stopped! Quite the opposite, in fact I am happy to announce the release of Wayfire 0.8.0. There have been many changes and plugin API breakages since the Wayfire 0.7.x series, so I…
18873
Simulation Islands
Island management is a fundamental low level feature of physics engines and can have a big impact on solver design and performance. This was one of the first problems I decided to work on for Box2D version 3 (v3). Since I began working on v3 I’ve been comparing several algorithms for island management. My goal has…
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FTX – The fraud was in the code
The jury got a taste of code review as they examined a falsified "insurance fund" and the infamous FTX → Alameda Research "backdoor".
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ECC RAM on AMD Ryzen 7000 Desktop CPUs
Getting ECC memory working on desktop CPUs.
18876
The Future of CSS: Easy Light-Dark Mode Color Switching with Light-Dark()
A function that computes to the first color if the used color scheme is light or unknown, or to the second color if the used color scheme is dark.
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Why AutoGPT engineers ditched vector databases
AutoGPT decided to drop the support for vector databases: Pinecone, Milvus, Redis, Weaviate - all gone. What has happened to the original idea of efficiently storing agent's memories?
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LLMs can't self-correct in reasoning tasks, DeepMind study finds
A study by Google's DeepMind and the University of Illinois at Urbana-Champaign has found that self-correction in large language models (LLMs) isn't universally effective.
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Bare-metal Rust in Android
Posted by Andrew Walbran, Android Rust Team Last year we wrote about how moving native code in Android from C++ to Rust has resulted in ...
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Medieval staircases were not built going clockwise for the defender's advantage
This story has been making the rounds on the internet with a claim that you’ve probably been told during visits to castles, but, there’s no evidence for it whatsoever. In short the idea…
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Lensm, a tool for viewing disassembly
I couldn’t find a great tool for viewing disassembly, so I wrote it myself over the weekend.
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789 KB Linux Without MMU on RISC-V
A guide on building a tiny Linux (only 789 KB) that requires no MMU and deploying it on a RISC-V system, with custom userspace code.
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Make your own pyramid salt crystals
This guide teaches you how to make pyramid salt crystals at home. Follow these simple steps to turn regular salt into premium artisan salt.
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Chapel 1.32
A summary of highlights from the September 2023 release of Chapel 1.32.0
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Text showdown: Gap Buffers vs. Ropes
I have been working on a hobby project to reimagine the C core of Emacs in Rust. On this journey, I reached the point where I needed some way to represent the text of a buffer. The simplest approach is to just use a large string or array of lines. However these each suffer from poor performance as either the size or…
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Modeling CRDTs in Alloy – the importance of idempotence
Checking my assumptions about syncable data structures
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Zimaboard: The closest thing to my dream home server setup
I gave in to my impulses and bought myself a small single board computer to be my power-efficient home server, here's how it went.
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UK Address Oddities (2018)
A few of my previous blog posts have been about quirks in the UK postal address system. As a result of these posts being moderately popular, people have contacted me to tell me about other such quirks. This pleases me greatly – I like quirks.
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2023 Nobel Prize in economics awarded to Claudia Goldin
The Sveriges Riksbank Prize in Economic Sciences in Memory of Alfred Nobel 2023 was awarded to Claudia Goldin "for having advanced our understanding of women’s labour market outcomes"
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Ardour 8.0
What's new in the latest release of Ardour: great new features, quality-of-life improvements, and bugfixes
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Flexoki, an inky color scheme for prose and code
An inky color scheme for prose and code.
18895
Impacts of lack of sleep
Sleep is important. People vastly underestimate the extent to which not sleeping is harmful, viewing it as a valid trade off for productivity and overlooking all of the longterm negative effects.
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My personal C coding style as of late 2023
This has been a ground-breaking year for my C skills, and paradigm shifts in my technique has provoked me to reconsider my habits and coding style. It’s been my largest personal style change in years, so I’ve decided to take a snapshot of its current state and my reasoning. These changes have produced significant…
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Self-Hosting (Almost) All the Way Down [video]
I will demonstrate FPGA-based 64-bit RISC-V computer, capable of booting and running the riscv64 port of Fedora. Using Free/Libre packages available as part of the Fedora repositories, this machine is capable of recompiling not only its own software (e.g., kernel, glibc, gcc), but also its own gateware (i.e., FPGA…
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MiniDisc Hacking
Most MiniDisc aficionados are aware of unit hacking to gain access to new features. The unit that perhaps benefits the most from this is the Sony MZ-N510, which also comes in the N520 and NF610 variants. The 2001 model R700 can be hacked to add many features of its upscale brother, the R900 , as well as the Type-R…
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Forty years of programming
I am about to turn forty-six. This means I have been programming for forty years, half of them professionally. During most of that time, I used a "standard" setup with 104 keyboard, a flat mouse, and a sitting desk.
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Speeding up the JavaScript ecosystem – The barrel file debacle
Many projects are littered with files that just re-export other files. These so called "barrel files" are one of the key reasons why JavaScript tooling is slow in bigger projects.