02GF74
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 posted on 12/9/08 at 11:32 AM |
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outer space
How will outer space feel?
As it is more or less a vacuum, will if feel cold?
There would be no convection for heat to transfer from skin, only heat loss by radiation. Any idea if that will be significant?
The fact that there will be no pressure, I read that blood would boil - presumably that means having bubbles in the blood which is not a good thing.
Would this affect the blood vessels near the skin and those deep inside the body?
To counteract having no pressure, would a suit made of heatshrink material then warmed up to apply pressure work?
In principle that is what the NASA space suits - but they also supply air under pressure for the ablve mentioned reasons.
Any links to what would happen to a human or mammal in a vacuum/outer space?
(and don't say suffocate cause a mask and an air supply is supplied).
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MikeR
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| posted on 12/9/08 at 11:41 AM |
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are you facing the sun or hidden from it?
Facing it you burn to death.
hidden from it you freeze to death.
Not sure about the other effects - but i'd think about putting a plug up your bum so the vacuum doesn't make a mess 
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Mr Whippy
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| posted on 12/9/08 at 11:42 AM |
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yes you will get cold as you body heat radiates into space, astronauts regularly complain that their hands get cold, the rest of their body is usually
either overall heated or cooled depending on if they are working in the sun on in shade. Below is a link to a new spacesuit which uses elastic
compression on the body rather than pressurised air to prevent the blood from boiling. That happens due to the zero outside pressure lowering the
boiling point of water to less than body temperature, which is not a lot of fun. Even worse is that while the blood evaporates it also cools so this
actually ends up freezing you solid. Obviously this has never been actually tested but personally I would like Clarkson to be guinea pig, btw do you
think guinea pig are so named as that’s all they use to cost, do they taste of bacon??
http://www.time.com/time/health/article/0,8599,1646046,00.html
[Edited on 12/9/08 by Mr Whippy]
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Mr Whippy
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| posted on 12/9/08 at 11:43 AM |
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quote:
Originally posted by MikeR
Not sure about the other effects - but i'd think about putting a plug up your bum so the vacuum doesn't make a mess
LOL 
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smart51
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| posted on 12/9/08 at 11:57 AM |
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you would radiate heat in the form of infra red. There would be no conduction to or from your body. You are designed to work with some heat loss to
maintain your temperature. Too much loss and you freeze, too little and you overheat.
I would guess that you heat loss in space would be too high but wear enough warm clothes and you'll be fine. The vaccuum will kill you though.
Wear compression socks all over to hold your insides in.
Take some air too.
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russbost
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| posted on 12/9/08 at 12:15 PM |
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Surely as there is no pressure in a vacuum, you would explode - perhaps your blood would boil b4 or during this - I have to say I wouldn.t recommend
it!!
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02GF74
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| posted on 12/9/08 at 12:24 PM |
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I guess I got a bit confused thinking about the themos flask - that has silvered inner lining to reduce heat loss by radiation.
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Mr Whippy
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| posted on 12/9/08 at 12:46 PM |
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quote:
Originally posted by 02GF74
I guess I got a bit confused thinking about the themos flask - that has silvered inner lining to reduce heat loss by radiation.
Well it was the heated up shrink wrap space suite idea that really got me, Women have been trying this approach for years but the results are often
disastrous as can be seen from this experiment…heaven knows how this would perform in space! 
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Jasper
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| posted on 12/9/08 at 01:15 PM |
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Watch the film 'Sunshine', that will show you ..... both in and out of the sun.....
If you're not living life on the edge you're taking up too much room.
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Mr Whippy
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| posted on 12/9/08 at 01:53 PM |
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quote:
Originally posted by Jasper
Watch the film 'Sunshine', that will show you ..... both in and out of the sun.....
you mean you actually watched that...
I read the cover and chucked it back on the shelf, I mean really restarting the sun!
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Jasper
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| posted on 12/9/08 at 01:57 PM |
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Certainly is nonsense - but the film is really excellent, truly beautiful effects, great storyline and ending, even better in HD, and after a few
'beers' .... one of my favourite films of last year.
If you're not living life on the edge you're taking up too much room.
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Minicooper
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| posted on 12/9/08 at 03:23 PM |
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Assuming you had a oxygen supply you would eventually freeze to death, assuming you weren't close to the sun.
Your blood wouldn't boil and you wouldn't explode or implode either, it would take a long time to freeze solid, not the split second as
most science fiction films show
Cheers
David
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Mr Whippy
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| posted on 12/9/08 at 03:36 PM |
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look up the boiling point of water at zero bar, its below 37 deg c, that's why the blood boils and why you can't get a hot cup of tea up a
mountain, oh and if breathing air at the normal 15psi you'd also burst your lungs and bleed to death...with your steaming boiling blood! hope no
one has fainted out there
[Edited on 12/9/08 by Mr Whippy]
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Minicooper
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| posted on 12/9/08 at 04:16 PM |
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You've been watching to many science fiction films Mr Whippy.
Cheers
David
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Mr Whippy
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| posted on 12/9/08 at 04:18 PM |
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no just reading to many science books
you know I have a 1000 page official NASA space book written just after the moon landings never seen anything like it since, simply superb goes into
amazing detail about these things. that's what I read when it was a kid. think it was my folks idea to get round my dislexia (bet I spelt that
wrong!) kind off worked...
[Edited on 12/9/08 by Mr Whippy]
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Simon
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| posted on 12/9/08 at 11:40 PM |
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Apparently there is a theory that you could go a short "hop" between space vehicles without a suit, but need to
1) Breath out as hard as possible and close eyes tightly
2) Open doors quickly
3) Cross void
4) Close doors quickly and repressurise
Enjoy
You could have a hot drink up a mountain, you'd just have to heat in a pressurised vessel, and transfer to orifice via tube. It may vapourise
instantly
Airlines are only pressurised to about 8psi.
ATB
Simon
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Liam
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| posted on 13/9/08 at 11:33 AM |
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Your blood is in a pressurised system, so would not boil straight away. Any moisture exposed to the vacuum would though (moisture on skin, eyes, in
mouth etc etc), and would significantly cool those places. I think 'evaporate' better conjures up images of what would be going on.
You'd quickly loose the contents of your bowels, bladder, stomach, lungs etc, probably doing some damage at least to the lungs. Ears would
probably pop/burst.
As pressure within your body found its way out, pressure gradient between your blood and the rest would get higher and higher until that probably
would also rupture. Then some blood might start evaporating away!
Liam
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Liam
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| posted on 13/9/08 at 11:37 AM |
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Ah ha - here's a good source of info...
Clicky
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joneh
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| posted on 13/9/08 at 12:00 PM |
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So we all agree you'd snuff it?
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Jasper
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| posted on 13/9/08 at 12:43 PM |
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quote:
Originally posted by Simon
Apparently there is a theory that you could go a short "hop" between space vehicles without a suit, but need to
1) Breath out as hard as possible and close eyes tightly
2) Open doors quickly
3) Cross void
4) Close doors quickly and repressurise
Simon
Which is exactly what they did in 'Sunshine' - all you need to know about real life in a movie
If you're not living life on the edge you're taking up too much room.
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