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News
Re-creating NASA’s Heat Shield Problem
23+ hour, 55+ min ago (37+ words) After the Orion capsule of the Artemis I lunar mission returned to Earth, it was found that massive chunks of its heatshield had been ripped off, posing a serious risk to any future missions. In a rec......
Whip-Cracking Machine Reliably Breaks The Sound Barrier
1+ day, 18+ hour ago (34+ words) We tend to think of breaking the sound barrier as a comparatively modern accomplishment, but on a smaller scale, cattle herders have been breaking it for centuries: the cracking sound of the tip of......
Spin FV-1 Emulator Simplifies Sound Pedal Development
1+ day, 21+ hour ago (37+ words) If you've never heard of the Spin Semiconductors FP-1 digital signal processor chip, don't worry-- that just means you haven't been deep into guitar petals and audio effects hardware lately. [adamjvr]......
2026 Retrocomputing Challenge: 16-Bit Homebrew Relay Computer
1+ day, 22+ hour ago (33+ words) You want Retro? We did, when we started our retrocomputing challenge. [Peter] decided that transistors weren't retro enough, and sent us this lovely homebrew relay computer, complete with 16- bit CPU,......
Big Infinity Mirror Clock Invites You To Gaze Deeply
2+ day, 2+ hour ago (33+ words) [Andy Huot] has a fantastic-looking infinity mirror digital clock that really raises the bar. It uses high quality components, smart use of RGB LED animations, and a clever "stacked diffuser" vertical......
The Heavy Disco-Ball Satellite Designed To Do… Nothing
2+ day, 11+ hour ago (32+ words) Launched in 1976, LAGEOS-1 (LAser GEOdynamic Satellite) is unusual in that it contains no instrumentation, no electronics, no power supply, and no means of propulsion. It's spherical, weighs just unde......
Looking At A TRS-80 12 MB External Hard Drive From 1983
2+ day, 11+ hour ago (35+ words) Although hard disks weren't a common feature yet in many home computers in the 1980s, they were becoming increasingly more affordable. For relative meanings of the word 'affordable', naturally. This i......
All The Best Computers Boot To… Python?
2+ day, 11+ hour ago (35+ words) Among all the machines of the 8-bit home computer era which booted straight to a BASIC prompt, there were a very few that went their own way with another language. The Jupiter Ace springs immediately......
Changing Nozzle Internal Geometry To Increase FDM Flowrate
3+ day, 22+ hour ago (36+ words) As FDM printers keep getting faster, we are forced to deal with a range of bottlenecks, all of which conspire to hold us back from another Benchie world record. A major physical limitation is that of......
3D Imaging Without A Lens
4+ day, 11+ hour ago (236+ words) Hackaday There are plenty of ways to capture 3D images or simulations of such if you know what youâre doing with camera hardware and fancy mathematics However, a little more unusual is the idea of capturing a 3D image while using…...