Can compressed air power a Lego car. In this experiment, we build and test an air-turbine system that drives a Lego vehicle using a 2-liter compressed air tank. By channeling pressurized air ...

The design uses what appears to be a LEGO tank tread to create a treadmill for a LEGO car. The initial design is hand-cranked, but [Dr. Engine] soon upgrades this with a motor. The wide treadmill ...