Merchant, F. W. (Francis Walter), 1855-1937, Chant, Clarence Augustus, 1865-1956 · Toronto : Copp Clark · leaf 125
t the open end of thetube under the surface of the water. Now hold thehand about the flask Heat from it causes the airwithin it to expand, and it is seen to bubble outthrough the water. Finally remove the hand from the flask and thecontained air cools down and contracts, and wa^er isforced up the… … Fig. 143.—Expansionof gas by heat. 118 SOURCES OF HEAT; EXPANSION THROUGH HEAT 133. Applications of Expansion—Compensated Pendulums. Aclock is regulattd by a pendulum, wliose rate of vibration depends onits lengtli. The longer the pendulum,the slower the beat; and the shorter,the faster. Changes in…
Physics
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