# The perfect pump

eosphorus
how would you make 1000 tons of water go all the way up 10 km and then down again with no friction?

have you heard about a tiphon? your toilet has one, you would make use of that principle if you wanted to take gas from a car deposit with a plastic tube

with an ideal fluid you could make the tube go 10 km up and move all the fluid you wanted up always that the end of the tube is lower than the level of water where the other end of the tube is

now imagine that in the top of the 10 km tiphon you trick the system and divide the tube in two, one which goes down again ending one meter below the level of water but the other that let's half of the water up not letting air come through the tube so the tiphon keeps alive

for what i have studied as long as density*gravity*height is higher in one end of the tube the fluid will move but it doesn't talk about mass so the fluid would not be noticing the splitting in two of the tubes at the top keepeng constant the variables that count but not the mass that doesn't count in the equation