Make a Dynamo!. In this video we make a Dynamo, which is essentially a motor that when you spin it generates electricity. We use gears to make the spinning smoother and faster.
For how to get parts and written instructions you can go here: http://partsandcrafts.org/makeit/index.php?title=Dynamo
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Tags: Make a Dynamo!, Parts and Crafts, Dynamo, DIY, Make, Maker, Build, How to, Gears, Gear