Design Science
#batteries #electricity #magnets #trains
How to Build the World’s Simplest Electric Train
The AmazingScience YouTube channel demonstrates how to build a ridiculously simple electric “train” with the help of a few magnets, a battery, and a copper coil. You can also use the same materials to build a little spinning motor-like contraption. (via Twisted Sifter)
#batteries #electricity #magnets #trains
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