Brass Ball & Ring Thermal Expansion Set

This brass ball and ring thermal expansion set is great for explaining the principle of thermal expansion. It demonstrates heat-induced expansion and contraction. The unit shows the expansion of metal when heated and its contraction when cooled. It will clearly show that, when either the ball and ring is heated, the ball will not pass through the ring. However, when cooled or at room temperature, the ball will pass through the ring freely.

For safety protection, this brass ball and ring thermal expansion set is equipped with wooden handles to protect hands from the heat. This set is great for demonstrating thermodynamic principles.