Cord Curling Part 2 – Reversing the Coil
See Part 1 of this guide here. Thanks to Bart Patrzalek for the tip, and Brian Adams for the instructive How It’s Made video segment.
Heat-shrink tubing
Optical Tremolo Box
Plug your guitar into light-programmable waveforms with this unique effects box.
Covert Listening Book
Connect a shirt pocket “amplified listener” hearing aid with an in-car FM transmitter, and you’ve got a wireless bug. Tuck them inside a hollowed-out book with the mic concealed by the dust cover, and you’ve got a covert listening device that you can leave lying around or on a shelf near a surveillance target. Then […]
Fireball Shooter
A stalwart of close-quarter magicians for years, the electronic flash gun is a simple device: a battery-powered, hand-held ignitor that uses a “glo-plug” to light a bit of flash paper and cotton, shooting a fireball a few feet into the air. You can buy one from most magic shops for around $50, but if you […]
Evil Mouse Prank
Joe Bowers is sneaky, resourceful, and rotten to the core. Whatever you do, don’t get in a prank war with him. Returning to my desk from a coffee break, I sat down, grabbed my mouse, and … nothing. The cursor was stuck to the left wall of my monitor. I shook my mouse wildly. The […]
“The Towel” R/C Stunt Plane
Build a robust R/C flying-wing airplane that’s fun to fly and great to learn on.
Tiny Wanderer “Moth”
Adding CdS photocell sensors to your Tiny Wanderer robot allows it to see a spectrum of light that is similar to what humans perceive. With two sensors, the robot can monitor two directions for light level differences and be programmed to either turn to or to avoid high light levels. In this guide I will […]
