...pump ; at the same time a similar operation is going on in the pipe R, for the valve T being opened, the pressure of the atmosphere on the surface of the water in the cistern s, forces a portion of that water up the pipe R ; and it is important, that the vacuum...

...over the end D of the pipe DE, and immerse it in the water in the tank. Now, withdraw the hand, and the pressure of the atmosphere on the surface of the water in the tank will prevent any water from falling back out of the head ; and when any quantity of hot water...

...be equal to that of a column of water whose base is mn and height/3, =a2 p ; .-. F = a* . (E v+p). 9. To determine the height to which the water will...the elastic force of the rarefied air between the prston and surface of the column of water in the tube, together with the weight of that column. Let...

...t. iii. pp..238, 239- t Seep. 170. piston-rod I. Now when the piston is at the bottom of the barrel, the pressure of the atmosphere on the surface of the water in the well will open the piston-valve, and the water will rise to the same height within the barrel as...

...the frame BCDE, connected with the piston-rod I. Now when the piston is at the bottom of the barrel, the pressure of the atmosphere on the surface of the water in the well will open the piston valve ; and the water will rise to the same height within the barrel...

...cool air will reconvert the steam in the tube into liquid, and a vacuum will be produced, into which the pressure of the atmosphere on the surface of the water in the basin will force the water through the tube, and it will rush up with considerable force, and fill...

...this weight be equal to that of a column of water whose base is mn and height/*, =a2 p ; .: F = az . (E v + p). 9. To determine the height to which the...tube, together with the weight of that column. Let a 6 be the surface of the water in the suction-tube, after the first stroke of the piston : if the...

...the surface a placed at E will be greater than the pressure upwards on that surface which arises from the pressure of the atmosphere on the surface of the water in the vessel. When therefore the end A of the siphon is opened, the column BE will begin to sink down...

...the column of water in the suction pipe and pump barrel is 28 or a few more feet, and consequently the pressure of the atmosphere on the surface of the water in the well, is equal or more than equal to the weight of such water in the suction pipe and pump barrel,...

...thirty-three feet of the surface of the water in the well, it will never rise above the piston. Now as it is the pressure of the atmosphere on the surface of the water in the well, which is the cause of it so rising, the action of the pump may be briefly explained : —...