Geiger Counter

This DIY Geiger counter clicks and flashes an LED each time it detects a radioactive particle. It works with most common Geiger–Müller tubes, and easily connects to radiation rate meters, data loggers, true random number generators, and the Radiation Network’s GeigerGraph software. Share your radiation readings with the whole world! Read more »

Coffee Table MAME Console

By John Baichtal and Adam Wolf Do you remember those classic video game arcades filled with rattling quarters, 8-bit songs, and flashing lights? You can reclaim that excitement in your own living room with this Coffee Table MAME Console. In 1997, Italian software developer Nicola Salmoria released the first iteration... Read more »

Rocket-Launched Camcorder

Hack a $30, single-use camcorder to make it reusable, then launch it up in a model rocket and capture thrilling astronaut’s-view footage of high-speed neighborhood escape and re-entry. Read more »

ESP/psi Testing Lamp

Albert Einstein once wrote that God does not play dice with the universe. To which Niels Bohr (or Enrico Fermi) reportedly replied, “Stop telling God what to do with his dice.” Here’s a mood lamp that expresses these dice as 4 multicolored cubes that blink randomly, with true randomness —... Read more »

Gun-Operated Alarm Clock

Clock radios are everyday hated devices that designers seem to ignore, judging by how little their features and user interfaces have changed. This project adds a new capability, letting would-be sleepyheads enjoy a human-machine interaction of a different sort. Don’t worry, we’re not going to connect your clock to an... Read more »

Circuit-Bend Your Casio SK Keyboard

By Cristiana Yambo and Sebastian Boaz The easiest way to start circuit bending is “playing open circuits.” That’s where you open up an audio device and use your hands or alligator clips to mess with the board inside and see what it sounds like. But it’s almost as easy to... Read more »