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Why does the area of the inner hole of a thick metal ring increase on heating instead of decrease? - Quora
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Thermal expansion. A ball and ring apparatus used to demonstrate thermal expansion. The brass ball is just small enough to fit through the ring. If th Stock Photo - Alamy
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Ring and Ball Apparatus for Lab Thermal Expansion Experiments Object Thermal Expansion and Contraction Material Physical Teaching Aids 1 Set: Amazon.com: Industrial & Scientific
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