An object continues to do whatever it is doing. If it is rotating, it continues to rotate. If it is at rest, it remains at rest (unless acted on by a torque of some kind). We call this quality of matter ROTATIONAL INERTIA. Also called Moment of Inertia.

Balancing Stick
Bicycle Wheel Gyro
Chaotic Pendulum
Downhill Race
Gravity Well
Gyro Chair
Lunar Lander
Momentum Machine
Phase Pendulum

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