Ball & Ring Apparatus
This brass ball fits easily through the matching ring when they are both at room temperature. Heat the ball in a flame, and students will see the results of thermal expansion.
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Thermoelectric Generator
Bring the 2nd Law of Thermodynamics to life using this device that can act as a refrigerator or a heat engine. Immerse the two aluminum legs in baths of different temperatures, and produce electrical energy that turns the turbine!
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