...a cylindric column of the fluid, whose base is the surface pressed, and altitude the perpendicular depth of the centre of gravity of the surface pressed below the surface of the fluid. 8. Construct and investigate the magnifying power of the common astronomical...

...a fluid is as the square of the velocity; and putting r~ velocity in feet in a second ; it is equal to the weight of a column of the fluid, whose base is the plane, and height — . And in a globe 64 it is but half so much. 5. As to the mechanic powers,...

...the velocity v, or to (V— v]* x v. In estimating the force of the stream upon tlic floats, we take a column of the fluid whose base is equal to the surface of one float only, because the section of the impinging stream which is perpendicular to the direction...

...experienced. If a fluid acts only by its weight, its entire pression is equal to the weight of a prism of the fluid, whose base is equal to the surface pressed, and whose height is the distance of the centre of gravity of this surface from the level surface of the...

...Ee were a plane surface moving perpendicularly in a fluid, the resistance against it would be equal to the weight of a column of the fluid whose base is the surface resisted, and altitude the space through which a body must fall from rest, in vacuo, to...

...pressure of a fluid against any upright surface, as the gate of a sluice or canal, is equal to half the weight of a column of the fluid, whose base is equal to the surface pressed, and its altitude the same as that of the surface. Or, by art. 31* of the same, the pressure is equal to the weight of...

...and its altitude the same as that of the surface. Or, by art. 314 of the same, .the pressure is equal to the weight of a column of the fluid, whose base is equal to the surface pressed, and if s altitude equal to the depth of the centre of gravity below' the top or surface of the water ;...

...fluid. S09. Carel. 309. Carol. 3. The pressure of the fluid on any horizontal surface or plane, is equal to the weight of a column of the fluid, whose base is equal to that plane, and altitude is its depth below the upper surface of the fluid. 'PROPOSITION LXI. 310....

...The Real Resistance to a Plane, by a Fluid acting in a Direction perpendicular to its Face, is tqual to the Weight of a Column of the Fluid, -whose Base is the Plane, and Altitude equal to that -which is due to the Velocity of the Motion, or through -which...

...act against a plane in a perpendicular direction, the real or absolute force on the plane is equal to the weight of a column of the fluid whose base is the plane, and height equal to the height through which a heavy body must descend from rest by its...