PIRA Classification: 1D50.70
Description: A chain is placed on a disk of wood mounted on a motor. Increase the speed of the motor using the variac. When the motor, and thus chain, is spinning with sufficient speed, jerk the motor toward you. The chain will come off and roll along the lecture bench.
Special Instructions: Make sure you are behind the lecture bench so the chain will roll into the sink at the end of the bench.
Condition: Good
Setup time: 1 minute
Safety Issues: Keep all objects out of the path of the chain.