Introductory course of natural philosophy for the use of schools and academies. Ed. from Ganot's popular physics. By William G. Peck (1869)
Ganot, Adolphe, 1804-1887, Peck, William Guy, 1820-1892 · New York A.S. Barnes · leaf 134
o as to fill thereceiver, pipe, and barrel.If the piston, P, be de-pressed, it at once closesthe valve «, and com-presses the air in thebarrel till its elastic forcebecomes great enough toforce open the valve t,when it escapes into theatmosphere. By this double strokeof the piston, P, a portion of… … Ftg. 89. Describe the action of the air-pump in detail. 132 POPULAR PHYSICS. H, or in any other closed vessel attached to the pipe of themachine. What has been said of one barrel, is equally true of theother ; in fact, the instrument, as figured, is a double pump. Measure of the Rarefaction…
Physics
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