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Asked by maggie246 to Ed, Sam on 24 Jun 2011.
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Ed Morrison answered on 24 Jun 2011:
I’m not sure you would explode. Because there is no air there is no pressure. Pressure differentials put strain on materials and can cause them to burst. But although there would be some expansion in your body, it would be strong enough to withstand it. I think your blood might boil though becuase liquids boil in very low pressure, so you wouldn’t survive long. And of course you would asphyxiate quite quickly too.
You get the opposite problem if you go very deep underwater. Here there is lots of water pressure, which presses on your body and makes it bery hard to inflate your lungs to breathe. If you go deep enough, you could get squidged into a litte ball by the huge pressure.
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Sam Tazzyman answered on 24 Jun 2011:
The reason that the pressure is higher on the surface of the Earth than in outer space is because there is air. Pressure is actually the result of lots and lots of tiny air particles hitting your body all the time.
Comments
sharyce commented on :
so if you was in space on another planet would you die if you staed there for 3 years with water and food?
Sam commented on :
You would need to be on a planet with oxygen, so you could breathe. And it would depend on the pressure – if it was too high you would be crushed (like at the bottom of the sea, as Ed says), if it was too low you would find it very difficult to breathe.