07 Mar, 2013
PRESENTATIONN: Two metals are soldered together to make one piece, for example brass and steel. When they are subjected to a change in temperature using a flame or a dryer the piece bends due to the different thermal expansion coefficients, which are related to the change in geometry when the temperature varies: towards the steel side if heated up and towards the brass side if cooled down.
- A demonstration apparatus for linear thermal expansion, Erland H. Graf, Phys. Teach. 50, 181 (2012)
- Another Demo of the Unusual Thermal Properties of Rubber, Mark I. Liff, Phys. Teach. 48, 444 (2010)