Tissandier, Gaston, 1843-1899, Frith, Henry, 1840-, Harry Houdini Collection (Library of Congress) DLC · London, New York [etc.] Ward, Lock & Co · leaf 638
THE BAROMETER, 75 fluids, of which we shall read more when we come toconsider Water. So the two columns of mercury are inequilibrium. (See A.) Now stop the arm a with a cork,and take out half the mercury. It will remain in onearm only. Remove the cork, and the fluid will fall in both … TKe Barometer. arms, and remain in equilibrium. If a long bent glass tubebe used, the arms being thirty-six inches high, the mercurywill fall to a point, c, which measures 29-9 inches from thebottom. If the tube be a square inch in bore, we have29-9 cubic inches of mercury, weighing I4|lbs.,…
Scientific recreations
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