Rotational Dynamics Rotational Dynamics Inertia Wands Ring, Disk and Sphere Race Angular Acceleration Apparatus Falling Wine Glass on a String Falling Meter Stick Weights Dropped on a Rotating Stool Rotating Stool with Weights Governor Rotating Stool with Bike Wheel Bike Wheel Gyro MITAC Gyro Air Gyro Tippe Top Energy Ball Break the Bolt