How to build a motor in 30 seconds
OK, “build” is not the best word. How about “make” an electric motor that will run in excess of 10,000 RPM in 30 seconds?
All you need is one drywall screw, one 1.5 V alkaline cell, six inches of plain copper wire, and one small neodymium disk magnet. You do not need any other tools or supplies.
Instructions (with pictures) Hey, even I could do this!
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