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Lola 4 year s ago
Making an electric train with some wire and a battery
You will need:
- A skein of thick copper wire (the bigger it is, the longer your “train tunnel“ will be)- 1 AA battery
- 2 round neodymium magnets of the same diameter as the battery
- An ordinary pen
Coil the wire around your pen so that it forms a long spring. Attach the magnets to both ends of the battery. Launch your ”train." It will move all by itself!
Watch the video here.