Collaborate Disseminate
In general, the simpler a thing is, the better. That doesn’t appear to apply to engines, though, at least not how we’ve been building them. Pistons, cranks, valves, and seals, …read more Continue reading A Wobble Disk Air Motor with One Moving Part
Seeing a heavy load slide around on nearly frictionless air bearings is pretty cool; it’s a little like how the puck levitates on an air hockey table. Commercial air bearings …read more Continue reading DIY Air Bearings, No Machining Required
[Julian] knows that real diodes you can buy don’t work exactly like we say they do. That’s actually pretty common. We routinely ignore things like wire resistance and source resistance …read more Continue reading Ideal Diodes and How to Build Them
We’ve often heard you should do everything twice. The first time is to learn what you need to do, and the second time is to do it right. We bet …read more Continue reading Power Supply PCB Redesign
RC cars used to be pretty simple. They’d go forwards, backwards, and steer if you got a full-function toy. However, with modern technology, it’s pretty trivial to make them more …read more Continue reading Little RC Car Project Takes Inspiration From Mario Kart
When you used punch cards or tape to write a computer program, brief variable names were the norm. Your compiler or assembler probably only allowed six letters, anyway. But times …read more Continue reading Alphabet Soup: Haskell’s Single-Letter Naming Quirks
Glass! It’s, uh, not very conductive. And sometimes we like that! But other times, we want glass to be conductive. In that case, you might want to give the glass …read more Continue reading How To Make Conductive Tin Oxide Coatings On Glass
If you remember a time when TV news sets universally incorporated a room full of clattering wire service teleprinters to emphasize the seriousness of the news business, congratulations — you’re …read more Continue reading Dot-Matrix Printer Brings Old School Feel to Today’s Headlines
Plastics are unfortunately so cheap useful that they’ve ended up everywhere. They’re filling our landfills, polluting our rivers, and even infiltrating our food chain as microplastics. As much as we …read more Continue reading Recycling Tough Plastics Into Precursors With Some Smart Catalyst Chemistry
Last time, I told you about a simple script I made to collect data about my laptop activity, talked about why collecting data about yourself is a moral imperative, and …read more Continue reading Hack On Self: The Alt-Tab Annihilator