The Complete Rotational System features a cast iron base, dual ball bearings, and stainless steel shaft. It generates moments of inertia large enough to be sensed by anyone rotating the system by hand. This system is ideal for experiments pertaining to centripetal force, angular momentum, and rotational motion. Additional accessories can be added for experiments concerning torques, friction, magnetic levitation, and Faraday’s Law. Angular velocity and motorized drive can be monitored using a computer.