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Ball and Ring
Product Code: BALLRING
Ball and ring are used to demonstrate the thermal expansion and contraction of metals when heated and cooled.
When the ball is cold it can easily go through the ring. When you heat it up, it will expand (become larger) and does not go through the ring.
Ball and ring is a classic experiment showing the expansion of materials when they expand.
Expansion of materials by heat is one of the important factors engineers consider in making their designs of buildings, bridges and machinery.
Old product code: LC659
The ball passes freely through the ring when both are at the same temperature, but when the ball is heated, it will not pass, thereby showing expansion and when it is allowed to be cooled, it will again pass through the ring thereby showing contraction.
Consists of a brass ball and a brass ring, each individually mounted on brass rods with wooden handles.