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why do rubber bands contract when heated by a hair dryer?

Question by luvdisneyapplegrape: why do rubber bands contract when heated by a hair dryer?
it is for my science project which is due next week and i am a procastinater so plz help me this is the last section… Continue reading

Rubber Band Heat Engine

I’ve been made the Rubber Band Heat Engine, which is described by Richard Feynman in his book. As the rubber bands are heated by the lump, they contract, moving the center of mass away from the center of rotation. This… Continue reading