Allen, Charles Ricketson, 1862- [from old catalog] · New York, H. Holt and company · leaf 198
short arm by pour-ing mercury into the long arm.The pressures can be changedby using different depths ofmercury, the volume of gascan be read on the scale d, andthe depths of mercury on thescales d and e. The two cardsff help in reading the levels.As we know from the laws ofliquid pressure, the… … * Suggest a method for such an experiment. 186 DYNAMICS. height of mercury, causing the pressure plus the heightof the barometer, whose reading must be known. Sincechanges of temperature affect the volume, the tempera-ture must be practically uniform during the exercise. EXPERIMENT. Apparatus.—As…
Physics
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