"Coefficient of expansion" Quotes from Famous Books
... an extent. Another point which appears worth mentioning is the following: The foot-screws were of brass, the tribrach, into which they fitted, was made of aluminium for the sake of lightness. The two metals have a different coefficient of expansion, and while the feet fitted the tribrach at ordinary temperatures, they were quite loose at temperatures in the region of 20 Fahr. below zero. In any instrument designed for use at low temperatures, care should be taken that parts which have to fit together are made of ... — South! • Sir Ernest Shackleton |