Elementary treatise on physics experimental and applied for the use of colleges and schools (1890)
Ganot, A. (Adolphe), 1804-1887, Atkinson, E. (Edmund) · New York : W. Wood · leaf 198
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. 20I. Air-pump g-augre.—When the pump has…
Physics
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