Tuesday, December 20, 2011

Tiny fan and coin vs current


"Single phase submicro brushless motor, made from rewound wristwatch coil wire and the A1442 speed controller ic chip. Magnet is .5mm x 1mm, smallest available, shaft from .007" music wire, hypodermic tubing for bearings. Propeller is 8 mm diameter, made from basswood."


"5 cents vs 200 amps"

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