Experimental science. Elementary, practical and experimental physics (1890)
Hopkins, George M. (George Milton), 1842-1902 · New York, Munn & co. · leaf 133
tremely mobile fluid, it hassufficient inertia to permit of the flight of birds, the opera-tion of windmills, and the propulsion of sailing vessels. Theaerial top shown in Fig. 112 is dependent upon the inertiaof the air. This top is simply a metallic screw wheel,adapted to be revolved by means of… … Wirtzs Pump. GASES. Ill Fig. 112.
Physics · Lantern projection · Electric apparatus and appliances
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