Description

To demonstrate the phenomenon of thermal expansion of solids. Consists a brass ring mounted on a rod with wooden handle. A chain is attached to the rod to handle the ball with ring. At room temperature, the ball passes easily through the ring. When heated, the ball expands and cannot pass through the ring. Cooling the ball contracts it again, demonstrating reversibility. if both ball and ring are heated to the same extent, the ball will pass, thus demonstrating the “expansion of a hole” effect. Handle also available in PVC.

Size Available of Brass Ball: