PIRA Classification: 1H10.20
Description: A small, low friction, cart has a fan mounted on its top. Turning the fan on causes the cart to move in one direction. If a sail is placed in front of the fan, the cart will not move, due to balancing of forces.
Special Instructions: Make sure the fan speed is set to "Medium".
Condition: OK
Setup time: 1 minute
Safety Issues: None