Video Index
Please make sure you play the Video before clicking the links below.
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Linear Expansion Coefficients
Equation for linear expansion; coefficients for 5 common substances; example of railroads; demonstration of expansion of a brass rod when heated and cooled.
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Bimetals
Example and calculation of expansion properties; use in thermostats; demonstration of a bimetal bending.
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Uses of Bimetals
Bimetals in thermometers, coils, and heating systems. Demonstration of heating and cooling bimetal in a thermometer.
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Cubic Expansion
Derivation from linear expansion, with example; demonstration of heating mercury in thermometers.
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Shrink - Fitting
Definition; demonstration of the opposite using a heated brass ball.