Hall, Edwin Herbert, 1855-1938 · New York, H. Holt and company · leaf 49
lume the space contained in unit length of the tube. 36 physics. mitted through a small tube may extend to a broad surfacebeyond the tube so as to make the total pressure on thissurface very great. The following experiment will showthat similar effects can be produced with air-pressure.… … Fig, 15. f S in Fig. 15, on the football and the other end upon a box or blockof about the same he:ght. Then place a weight of 25 lbs. or moreon the board nearly over the ball, holding the rubber tube attachedto the key in such a way that the air cannot escape from the ball.Then blow through the…
Physics
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