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Let Bristlebot be your toothbrush robot friend

The excellent inventors over at Evil Mad Science Laboratories have done it again. Their newest innovation is a tiny robot made from the head of a toothbrush. They noticed that newfangled toothbrushes with angled bristles want to move in one direction if you push down on the bristles. If you add a pager motor (the little thing inside a cell phone or pager that makes it vibrate) and a watch battery to the top of the toothbrush, the motor will drive the toothbrush head around a surface faster than any wind-up toy.
Check out the how to video after the jump.
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