October 20, 2013

Water lifting devices



Water is for most practical purposes incompressible. Consequently, if a close fitting piston is drawn through a pipe full of water it will displace water along the pipe. Similarly, raising a piston in a submerged pipe will draw water up behind it to fill the vacuum which would otherwise occur; this applies of course only up to a certain limit of the height water can be pulled by a vacuum.

Continued…. water lifting devices.