Lynde, Carleton John, b. 1872 · New York, Macmillan · leaf 100
sion and contraction ofsome liquid, usually mercury, is used toindicate the change in temperature. House-hold thermometers consist of a glass tube with a bulb at oneend. The bulb and part of the tube contain mercury. Thebore of the tube is small compared to the volume of the bulb,and as a result, a… … FIG. 62. —An oventhermometer. 86 PHYSICS OF THE HOUSEHOLD m Gas thermometers. — The most accurate of all expansion thermometers l are those which use the expansion of a gas tomeasure temperature. They are themost accurate because the rate of ex-pansion of gases is very regular. Thehydrogen…
Physics · Home Economics
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