The apprentice, or First book for mechanics, machinists, and engineers (1860)
Byrne, Oliver · New York, P. J. Cozans · leaf 112
esides C A, the thrust upon therafter, we have a vertical pressure upon the wall, arisingfrom one half the weight borne by the rafter, lake 0 ^,equal to the units in this vertical pressure and constructthe parallelogram Caqt, then the diagonal C g, will givethe amount and direction of the pressure… … anv point in the side, will be due to the perpendicular depthH P. That is, in other language, the pressure is in pro-portion to the depth. The reason of this is, since gravity 108 PRACTJCAL MECHANICS. acts upon all the particles of the fluid, each particle presseson that which is next below it, and…
Mechanics, Applied
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