Henderson, C. Hanford (Charles Hanford), 1861-1941, Woodhull, John F. (John Francis), 1857-1941 · New York, D. Appleton and company · leaf 145
ic pressure than a verythin glass flask or a delicate tis-sue-paper bag whose mouths are open. Manifestly theseare not enduring great stress from atmospheric pressure. 141. The Fountain in Vacuo.—The apparatus illus-trated in Fig. 76 shows again the relation of tension andpressure. If the tension… … Fig. 76. PRINCIPLES OP FLUID PRESSURE 127 mospheric pressure from without will force the water inthe lower vessel to rise until the volume of the gas insideshall be reduced so that its tension may equal the pressureupon it. Manifestly the water whichenters the bottle is very nearly a meas-ure of…
Physics
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