Train on circular track moves one way and track moves the other.

Train on Circular Track. Santa Fe Large Circular Track mounted on spoked wheel. The Track is free to rotate in a horizontal plane. When power is applied to the rails, the train will move in one direction and the track will rotate in the other. To start the train, give a quick pulse on the variac, and then turn it up again. To change direction, give another quick pulse, then turn it up again. Locomotives are weighted with lead to provide extra mass
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Demo Diagram: