A ‘s Gravesande’s ring is an apparatus for demonstrating thermal expansion and contraction, a fundamental principle in thermodynamics.
Named after Dutch scientist Willem ‘s Gravesande, the apparatus consists of two main components: a brass ring, and a brass ball slightly smaller in diameter than the ring. The ball can pass freely through
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Perfectly sized and machined smooth. Nicely made
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Shawn · June 29, 2026
Gravesande
Received the science demo of thermodynamics, advice to improve make the ring tighter tolerance change to an aluminum ring so the heat of your hand can show the temperature difference at the ring