Thats right. No offense but "how to maintain pressure" was not my question.
You mean that regardless of the amount and size of water pressure inside and the lightness of the material it wouldn't propell forward a bit?
So a jet of water would still be more effecient for propulsion than anything else? (comming from water pressure as energy)
So in what way ius it best used? I know the velocity of the watter passing trough the exit will increase as the exit becomes narrower and i guess you also have to consider...
I'm working on an idea in product development, though being still a fairly new student in this i still am left with a lot of questions, perhaps anyone can aswer?
Say that i have a closed can with pressurised water lying in a pool of water. My question would be what the best method would be for...