Archive for the tag 'Human Effort'

hot water from friction?

admin December 14th, 2009

don’t you fu asked:


if we take a bicycle pump and put our thumb firmly over the nozzle and pump hard!
air forces its way past our fingers and heats up your finger?
could we boil water in the same way using a huge cylinder and a pistion with a threaded rod connected to a huge crank with gears
that pressurises the water and drives it out a pinhole?
would the expended water be boiling or the metal around the pinhole be searing hot?
if it does work i know it wouldn’t generate power as your transferring human effort for it but human effort traded to make heat for a bath is still impressive to me!
this is a theroethical question? any thoughts appreciated!

Alvaro