Make Lightning
I have been fascinated with arcs and sparks, bangs and pops ever since I created an arc with a busted power adaptor. One day I thought about making a proper “big boys’ toy” that would be safer and more convenient.
Continue ReadingI have been fascinated with arcs and sparks, bangs and pops ever since I created an arc with a busted power adaptor. One day I thought about making a proper “big boys’ toy” that would be safer and more convenient.
Continue ReadingEnergy harvesting is all the rage, so bring on your lemon batteries, thermocouples, minuscule solar cells, dirt batteries, and tree batteries. This circuit can convert them all to useful voltages. This is still a new, cutting-edge circuit. There’s only one commercial integrated circuit out there that will do the same thing: the LTC3108. But, if […]
Continue ReadingBuild a coffin-shaped card box. Cards get inserted, the spirits get excited!
Continue ReadingTurn a Hot Wheels toy into a versatile
radar gun.
Hack an iPod and a garden light, and make yourself a simple light meter!
Continue ReadingSnap aerial photos from 300′ up by suspending a hacked camera from 3 helium balloons.
Continue ReadingMake the cub scout rocket derby a blast.
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