Arc Reactor

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Instructions for making your own Arc Reactor, similar to what Tony Stark wears in Iron Man. I’ll give you a general idea of how I built it, along with how it’s wired. Aside from the circuitry, this build is largely up to you, since I used a lot of scrap... Read more »

Secret Garage Door Remote

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A garage door opener openly displayed inside your car can be an incentive to thieves. Documents from the glove compartment are likely to reveal your home address, and with the remote in hand a thief can help him- or herself to the contents of your garage, and (if it’s an... Read more »

Floating Glow Display

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Using this simple technique, you can etch a design into a thin pane of clear plastic sheeting, then enclose the edges of the plastic with reflective tape and embed a battery-powered LED. The resulting design appears backlit and hovering in mid-air, with a laser-like textured glow that photographs cannot do... Read more »

Micro FM Transmitter

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This circuit is commonly credited to Japanese multimedia artist Tetsuo Kogawa. It takes audio input through a 1/4″ phono jack and, constructed as shown, without the optional antenna connections, will broadcast an FM radio signal about 30 feet. This is the standard model of Mr. Kogawa’s simplest FM transmitter, which... Read more »

Pixelmusic 3000

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In 1976, Atari introduced Atari Video Music, a plugged-in music visualizer designed by Pong creator Bob Brown that bridged the yawning gap between consumers’ stereos and their TV sets. The quirky, psychedelic pixelation device never caught on, but watching it in action today (check it out on YouTube), one is... Read more »