Journal of the Franklin Institute; devoted to science and the mechanic arts (1826)
Franklin Institute (Philadelphia, Pa.) · Oxford, Eng. [etc.] Pergamon Press [etc.] · leaf 153
uld be filled to thecommon height of the barometer in thesame way that barometers are filled,leaving the space above a perfect va-cuum. Before the forcing pump is applied,the glass cube will preponderate, onaccount of the addition of the smallweight D. The air must now be condensed bymeans of the… … Proposed Standard of Measure and Weight. 147 The height of the mercury in the tube must now be ascertainedat s. Thus whatever cube of gold is first assumed, if we keep up thesame relative proportions throughout, we shall always obtain a partialatmosphere of the same absolute density, and whose…
Science · Patents · Meteorology · Technology
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