Comment by 3dGrabber

There exists an interesting connection between Boost Converters and Hydraulic Rams [1]. A Hydraulic Ram is device that can pump water from a stream to a higher location by harnessing the kinetic energy of the stream, no other power source required.

The equations for the two devices are essentially the same, only the units change.

1 https://en.wikipedia.org/wiki/Hydraulic_ram