Elementary treatise on physics, experimental and applied : for the use of colleges and schools (1906)
Ganot, A. (Adolphe), 1804-1887, Atkinson, Edmund, 1831-1901, Reinold, A. W. (Arnold William), 1843-1921 · New York : Wood · leaf 206
Fig. 189 Fig. 190 be very nearly balanced by the atmospheric pressure on the top of the otherpiston. Consequently, the experimenter will have to overcome only thedifference of the two pressures. This is the reason why two barrels areemployed, a plan first adopted by Hawksbee. 202. Air-pump…
Physics
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