Cat Scratch Feeder

Build a snack-dispensing scratching post that will make Kitty forget the couch and curtains. Read more »
Electronics: Fun and Fundamentals — LED Photo Lights
Mimicking Robotic Arm
Laminar Flow Water Fountain

Make a cheap, high-tech nozzle to eliminate turbulence and create incredible water effects. Read more »
Visualist, ’70s Video Effects

The starting point of this project is an easy-to-handle video false color device, sound reactive and also suitable for a DJ. The input signal can be a PAL/NTSC video camera or video player. As output device you can use a flatscreen monitor or a beamer. The Visualist has mainly analog... Read more »