So what would happen to you if you were in outer space in a spacesuit and it decompressed? Would your blood freeze or your head explode? Would revenge be as sweet?
It's Very Cold... In Space
- Thread starter morkinva
- Start date
it'd be cool if BOTH happened.
only your head explodes, then while the blood splatters, it would freeze.
wouldn't be AS cool if your blood froze, and then your head pretty much just broke.
911paramedic
Diamond Member
- Jan 7, 2002
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True that the boiling point of liquids drops inside vacuums, but I don't think it would happen faster than the decompression. I think you would expand to a point, rupturing, and then freeze. The decompression would happen much faster than the cooling process I think, but I am wrong most of the time. I only read physics books for fun.Originally posted by: dnetmhz
it would only hurt for a second....as every drop of liquid in your body boiled instantly
Originally posted by: dnetmhz
it would only hurt for a second....as every drop of liquid in your body boiled instantly
I guess it depends whether or not you're exposed to sunlight.
911paramedic
Diamond Member
- Jan 7, 2002
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Do you want to hear something really scary? When tanks (Army and the such) shoot depleted uranium shells, they penetrate through the tank so fast that they create an incredible vacuum inside the tank that was hit. The crew gets sucked out through the hole in the other side because of the huge pressure change that is created. Much like if at 30K feet if your window on the plane was to get removed, you would get sucked out.
I am not making this up, an Army officer was telling me about this. (thank God I was Navy...)
Your blood would evaporate, not freeze. Space is not cold. Space doesn't have a temperature because there is nothing there.
I was talking with a former military guy at a local gun show, and was told that when a depleted uranium round was shot through a tank, the tank crew would end up coming out of the exit whole of the shell in about the consistency of outmeal. Rather that is true or not, I do not know, just going by what I was told.
It's hot and cold in space because you are surrounded by millions and billions of miles of thermos bottle. On the sunny side you roast and on the shadow side you freeze.
911paramedic
Diamond Member
- Jan 7, 2002
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Sorry, but you are crazy if you think that space is not cold. The only reason we do not freeze on earth is because of our insulation (atmosphere). I believe the sunny side of the moon is 1 Kelvin, which is quite cold if you ask me.
Say you were on Pluto, that is colder than dry ice. Not just because it is so far from the Sun, but because it has no atmosphere to retain heat.
911paramedic
Diamond Member
- Jan 7, 2002
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No. Depending on the size of the vacuum (space is almost absolute) you would decrompress to death much quicker than a minute. In a vacuum like that (disregarding temperature) you would stroke out so fast you would not even know it. The gasses in your bloodstream would expand so fast that you would stroke out, have a heart attack, pulminary embolism, or faster than you could say "oh sh!t"
Trust me here.
EDITED MESSAGE: forgot to mention that I really am a paramedic, and I am also a master scuba instructor. Being a scuba instructor I know a lot about pressure problems, I teach it more than I care to mention in my classes.
Evadman
Administrator Emeritus<br>Elite Member
- Feb 18, 2001
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In space you would only loose heat by radiation, which is a much smaller part of the cooling process than convection. There is no atoms to absorb the heat in your body. Your body could easily keep up with the rate of heat loss in space. breathing would be a different matter.
911paramedic
Diamond Member
- Jan 7, 2002
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Yes, but the difference between your body temp and almost absolute zero would sap your temp faster than you could imagine (and the head is one of the fastest places to lose heat). I still think you would "burst" from the pressure change.
911paramedic
Diamond Member
- Jan 7, 2002
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I got this from how stuff works (like this site)
Here is what I got, and it sounds good to me:
The Job of a Spacesuit
Outer space is an extremely hostile place. If you were to step outside a spacecraft such as the International Space Station, or onto a world with little or no atmosphere, such as the moon or Mars, and you were not wearing a spacesuit, the following things would happen:
You would become unconscious within 15 seconds because there is no oxygen.
Your blood and body fluids would "boil" and then freeze because there is little or no air pressure.
Your tissues (skin, heart, other internal organs) would expand because of the boiling fluids.
You would face extreme changes in temperature:
sunlight: 248 degrees Fahrenheit / 120 degrees Celsius
shade: -148 F / -100 C
You would be exposed to various types of radiation, such as cosmic rays, and charged particles emitted from the sun (solar wind).
You could be hit by small particles of dust or rock that move at high speeds (micrometeoroids) or orbiting debris from satellites or spacecraft.
Photo courtesy NASA
So, to protect you from these dangers, a spacesuit must:
Have a pressurized atmosphere
Give you oxygen
Remove carbon dioxide
Maintain a comfortable temperature despite strenuous work and movement into and out of sunlit areas
Protect you from micrometeoroids
Protect you from radiation to some degree
Let you see clearly
Allow you to move your body easily inside the spacesuit
Let you talk with others (ground controllers, other astronauts)
Let you move around the outside of the spacecraft
Here is what I got, and it sounds good to me:
The Job of a Spacesuit
Outer space is an extremely hostile place. If you were to step outside a spacecraft such as the International Space Station, or onto a world with little or no atmosphere, such as the moon or Mars, and you were not wearing a spacesuit, the following things would happen:
You would become unconscious within 15 seconds because there is no oxygen.
Your blood and body fluids would "boil" and then freeze because there is little or no air pressure.
Your tissues (skin, heart, other internal organs) would expand because of the boiling fluids.
You would face extreme changes in temperature:
sunlight: 248 degrees Fahrenheit / 120 degrees Celsius
shade: -148 F / -100 C
You would be exposed to various types of radiation, such as cosmic rays, and charged particles emitted from the sun (solar wind).
You could be hit by small particles of dust or rock that move at high speeds (micrometeoroids) or orbiting debris from satellites or spacecraft.
Photo courtesy NASA
So, to protect you from these dangers, a spacesuit must:
Have a pressurized atmosphere
Give you oxygen
Remove carbon dioxide
Maintain a comfortable temperature despite strenuous work and movement into and out of sunlit areas
Protect you from micrometeoroids
Protect you from radiation to some degree
Let you see clearly
Allow you to move your body easily inside the spacesuit
Let you talk with others (ground controllers, other astronauts)
Let you move around the outside of the spacecraft
The sunny side of the moon is about 100 C. Now if you're talking about dark side then it would be about 3 degrees Kelvin. There is no such thing as a pure vacuum so there's got to be at least some heat wherever you are.
BrunoPuntzJones
Lifer
- Feb 24, 2001
- 14,513
- 4
- 81
yea i remember that, but i thought all his organs and bones would be sucked out from bodily orfices due to the nature of the vacuum
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