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HL0200-001
Ball & Ring, Brass, Gravesande's
The classic brass Ball & Ring apparatus to prove and demonstrate the effects of heating a metal.
If the ring is chilled in ice, the ball cannot pass through the ring. If the ball is heated, it cannot pass through the ring. A chain joins the ball to the ring so they cannot become separated.
The IEC item is carefully machined and matched for size so that the experiment works.
