Merchant, F. W. (Francis Walter), 1855-1937, Chant, Clarence Augustus, 1865-1956 · Toronto : Copp Clark · leaf 86
xerts on any body immersed in it,a buoyant force which is ecjual to the weight of the gasdisplaced by tlie body. If a body is lighter than the weightof the air equal in volume to itself, it will rise in the air, justas a cork, let free at the bottom of a pail of water, rises to thesurface. 83.… … Fig. 92.—Zeppelins air-ship, over 400 ft. long and able to carrj 30 passengers. Fig. 92 shows the construction of an air-ship devised by Count Zeppelinin Germany. By meanfe of propellers it can be driven in any desireddirection. BALLOONS 79 A balloon will continue to rise so long as its weight is…
Physics
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