Collaborate Disseminate
Over on YouTube [Usagi Electric] shows us how to make RAM for the TMS9900. He starts by remarking that the TI-99/4A computer is an excellent place to start if you’re …read more Continue reading Making RAM for a TMS9900 Homebrew Computer
Over on YouTube [CuriousMarc] and [TubeTimeUS] team up for a multi-part series E&L MMD-1 Mini-Micro Designer Restoration. The E&L MMD-1 is a microcomputer trainer and breadboard for the Intel 8080. …read more Continue reading Restoring the E&L MMD-1 Mini-Micro Designer Single-Board Computer from 1977
They say that, sometimes, less is more. That would certainly apply to photomicrography, where you want to take pictures of tiny things. Nikon agrees, and they sponsor the Small World …read more Continue reading Nikon Small World Competition Announces 2025 Winners
If you ever wanted to win a bar bet about a world record, you probably know about the Guinness book for World Records. Did you know, though, that there are …read more Continue reading Record-Breaking Robots at Guinness World Records
In a recent write-up, [David Delony] explains how he built a Wolfram Mathematica-like engine with Python. Core to the system is SymPy for symbolic math support. [David] said being able …read more Continue reading Making Math Less Stressful with a Python Super-Calculator
[Paul McCabe] wrote in to let us know about his $25 robot. This small wheeled robot is based on an ESP32 and made using cardboard and hot glue. You drive …read more Continue reading A Simple $25 Robot Based on the ESP32
[Brian Haidet] published on his AlphaPhoenix channel a laser beam recorded at 2 billion frames per second. Well, sort of. The catch? It’s only a one pixel by one pixel …read more Continue reading Filming at the Speed of Light, About One Foot per Nanosecond
[Tito] entered a Self-Charging LED Flasher into the Component Abuse Challenge. It’s a simple re-build of a design by the unstoppable [Burkhard Kainka], and while [Tito] doesn’t explain its workings …read more Continue reading 2025 Component Abuse Challenge: A Self-Charging LED Flasher By Burkhard Kainka
Over on YouTube [Matt Brown] hacks a Chinese security camera recently banned by the US government. If you didn’t hear about this you can find out more over here: Major …read more Continue reading Hacking a Banned Chinese Security Camera
Over on YouTube [Applied Science] shows us how to make an f/0.38 camera lens using an oil immersion microscope objective. The f-number of a lens indicates how well it will …read more Continue reading F/0.38 Camera Lens Made With Oil Immersion Microscope Objective