helium airsuit inflating?

Question

if u were to put a lot of helium say 4 tanks full in an wetsuitand inflate the suit with u in it will u float

Answer 1

The short answer is no. Helium doesn't automatically make things float. It's easier to explain why things float in water first. It's common sense to think that light things float and heavy ones sink. That isn't true though. If it were, an aircraft carrier would sink. What happens is that an object in water pushes an amount of water equal to its size out of the way. If the object itself weighs less than the amount of water it pushes out of the way (displaces) it will float. If it weighs more than the water it displaces it will sink. Ok. It's the same with an object in air. If the man, wet suit, and helium weighed less than the amount of air they pushed aside they would float. In order to float the man would have to have a helium balloon fastened to him. Then the huge balloon plus the man would push more air aside than they weighed. Does that make sense? A fellow by the name of Archimedes said it first.

Answer 2

The helium would escape, and the suit wouldn't expand.

Answer 3

It's not the amount of helium, it's the amount of air you displace. You need a balloon big enough to displace enough air equal to the weight of your body.

Since your body is about 1000 times denser than air, you need a *REALLY*FREAKIN*BIG* balloon.