Water-to-Wine Cooler
Our sacrilegious illusion converts water into flowing red wine.
Wire strippers
Automated Fan Speed Controller
When our house was built, I put a server room next to my office. Unfortunately, it had only a small bathroom-style fan with a 4″ duct leading outside, and during the summer I had to leave the door open, which made my office hot and loud. So I installed a larger fan, along with an […]
Lord Kelvin’s Thunderstorm
Create high-voltage sparks using nothing more than falling water as the source of energy.
Monkeysailor’s Photo Lab
Make your own Arduino-controlled color film processor.
Fetch-O-Matic: Automatic Ball Launcher
Several years ago I watched a viral YouTube video that starred Jerry the Dachshund, whose engineer owner had built him his very own automated ball launcher. I had two dogs at the time, and was also unemployed with some time on my hands, so I decided to try my hand at building one. After a […]
Bacteria Battery
Microbial fuel cells generate electricity from “metal-breathing” bacteria in ordinary mud.
Simple Van de Graaff Generator
When I was younger, I spent hours perusing Bill Beaty’s electrostatics web pages. At the time, I didn’t achieve any real successes trying to build his high-voltage contraptions, and so my interest waned. Years later, I saw someone online use a soda can as a collector for their Van de Graaff generator, and all my […]
