Merchant, F. W. (Francis Walter), 1855-1937, Chant, Clarence Augustus, 1865-1956 · Toronto : Copp Clark · leaf 123
tsvolume increases. The com-pressed rubber ball takesits original volume andshape when the hand iswithdrawn, and when theapplied force is removed figthe piston shoots outwards.If a toy balloon, partiallyFio. 139.—Expansion of filled with air, is placed under the receiver air when pressure is „ . .…
Physics
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