Hank builds a simple electric motor just powerful enough to make a small screw spin, but also strong enough to blow your mind.

Science project with a sprinkle of love - the simplest electric motor with a Spinning Heart! Fuel childrens' creativity and see their little faces light up with electrical fun for all the family.
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In this science project, make a homopolar motor using simple parts, and determine how changing the diameter of the magnet affects the rate of rotation.