Introduce your students to one of the simplest devices, the homopolar or "one pole" electric motor. Credited to Michael Faraday, it does not involve the polarity change of more complex motors. Includes instructions to make three different styles of motors: pinwheel, spiral, and butterfly. Students can build the motor, make it run, and then break it down to make a different one. They can even design and build their own variations. Regular Kit contains all materials (including batteries) for two motors. Class Kit contains all materials (including batteries) for 24 motors.
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