RING BALL
Product Code : 12
Product Description
v RING BALL
An apparatus for demonstrating thermal expansion. Comprising of a brass ball secured to a mounted brass ring by a chain. Ring mounted rod withwooden handle. The ball passes through the ring when cold but will not pass through when heated to thesame extant, that shows the "expansion of a hole" effect. Gravesandes Ring and Ball fitted on two separate handles. Ball dia 25mm.
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