To demonstrate unequal expansion of different metals when heated equally.
Consists of two strips, brass and steel riveted together from end to end fitted to a wooden handle.
Upon heating, the bar curls and bends because the riveted strips each have different coefficients of thermal expansion.
Metal part; 11 inch (280mm) L x 1.1 inches (30mm).
Total length 15.5 inch (395mm).
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