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" The resistance which is opposed to a pump rod in raising water, is ~equal to the weight of a column of water whose base is the area of the piston, and... "
elementary treatise on nautral philosophy - Página 218
por a. privat deschanel - 1873
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Institutes of Natural Philosophy: Theoretical and Practical

William Enfield - 1811 - 428 páginas
...half the pressure on au equal surface at the bottom XR ; which pressure (by Prop I. and III ) is equal to the weight of a column of water whose base is the surface ZC^, and whose height is the depth of the stream. Therefore the pressure against the surface...
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A System of Mechanical Philosophy, Volumen2

John Robison - 1822 - 50 páginas
...contraction, by requiring an augmentation of velocity, employs a part of the impelling force precisely equal to the weight of a column of water whose base is the contracted passage, and whose height is the fall which would produce a velocity equal to this augmentation....
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The Elements of Hydrostatics

Miles Bland - 1824 - 359 páginas
...ascending tube : and by repeating the operation may be raised to the required altitude. The pressure upon the piston is equal to the weight of a column of water whose base is equal to that of the piston, and altitude the distance of the surface of the water in the ascending...
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A Popular Course of Pure and Mixed Mathematics ...: With Tables of ...

Peter Nicholson - 1825 - 372 páginas
...same time. PROP. 4. — The force oj a stream of watir against any plane obstacle at rest, is equal to the weight of a column of water, whose base is the section of the stream ; and height the space destended through by a falling body, to acquire that velocity. For let...
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The Principles of Mechanics ...: To which is Now Added, an Appendix ...

William Emerson - 1825 - 318 páginas
...the fluid against the plane. 2s Cor. \ . The force of a stream of water against any plane, is eyual to the weight of a column of water, whose base is the section of the stream, and height !!£. ; or the height of the water, if it flow 2s through a hole at the bottom of...
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The Mechanics' Magazine, Volumen69

1858
...object in the absence of any horizontal motion ! Nor is it hydrostatic pressure, which pressure is equal to the weight of a column of water whose base is the surface pressed, &c.; this pressure is that sustained by dock gates with a head of water on one side...
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Iron: An Illustrated Weekly Journal for Iron and Steel ..., Volumen8

Perry Fairfax Nursey - 1828
...smaller, or larger, than the cylinder GH, the body of water supported by the workman is always equal to the weight of a column of water whose base is the surface of the piston Б, and depth the distance £ F above the surface of) the water In the well....
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Natural Philosophy: With an Explanation of Scientific Terms, and ..., Volumen1

1829
...Hydrostatics.) Hence it appears, that the pressure exerted by the water in PV on the lower surface of the piston is equal to the weight of a column of water whose base is equal to the section of the piston, and whose height is M N. This, therefore, is the force to be overcome...
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Library of Useful Knowledge: Natural philosophy, Volumen1

1829
...at each stroke to lift the piston. The quantity of water discharged at •.vcli stroke, is equal to a column of water, whose base is the section of the piston, and whose altitude is the length of the stroke. This quantity may, therefore, be found in cubic feet> by multiplying...
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An Introduction to Natural Philosophy: Designed as a Text Book ..., Volumen2

Denison Olmsted - 1832
...(Art. 456.) Hence it appears, that the pressure exerted by the water in PV on the lower surface of the piston is equal to the weight of a column of water whose base is equal to the section of the piston, and whose height is MN. This, therefore, is the force to be overcome...
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