The video shows a physical science demonstration of a Foucault pendulum. A gray A-frame structure rests on a wheeled platform that rolls along a metal track. A red ball hangs on a string from the top of the A-frame. As the ball swings, the platform moves along the track. The demo is on top of a white cabinet, enclosed in a clear plastic case. A yellow hazard warning sign is visible on the platform. The background is a plain white wall.