Gage, Alfred P. (Alfred Payson), 1836-1903, Fessenden, C · Toronto : W.J. Gage · leaf 70
in thetube is called aTor-rkellian vamum.The history- of thisexperiment is veryinteresting and im-portant, inasmuchas it was the firstdemonstration ofthe pressure of theatmosphere. (SeeWhewells History of Inductive Sciences, Vol. I., page 345.)The hight of the barometric column is subject to… … 54 DYNAMICS. this shows that the atmospheric pressure is subject to variationsfrom various causes. Tlie barometer is alwa3S a faithful moni-tor of all changes in atmospheric pressure. It is also service-able as a weather indicator. Not that any particular point atwhich mercury mu} stand foretells…
Physics
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