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 343
lled with mercury, and placed inthe same bath (fig. 322). The straight tube, A,serves as a barometer ; the other, C, is bent, sothat part of the Torricellian vacuum can be sur-rounded by a freezing mixture, B (347). Whena little water is admitted into the bent tube, thelevel of the mercury sinks… … These depressions, which must be due tothe pressure of aqueous vapour in the space BC,show that even at very low temperatures thereis always some aciueous vapour in the atmo-sphere. Although in the above experiment the part Band the part C are not both immersed in thefreezing mixture, we shall…
Physics
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