Bimetallic Strip Thermal Expansion Demonstrator US Unavailable Hand cranked pulley steps up to Hand cranked pulley steps up to a smaller dynamo pulley through a rubber belt Hinged 45 by 15cm inclined plane with a 0 45° angle measurer Wooden handled bimetallic strip of bonded copper and steel the principle behind thermostats and coils
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Bimetallic Strip Thermal Expansion Demonstrator US-Unavailable Hand-cranked pulley steps up to