Re: another pointlassoguyJune 19 2005, 02:29:08 UTC
Yes, there is actually no way to concieve the word "cold" in space, because in a vacuum, there is no form in which heat can leave the body save radiance. There is no air, so convective cooling has no effect, and unless you are touching an asteroid, or a piece of space junk, there won't be any conduction either, again, for want of something to conduct to. In the radiant heat category, yes, heat will radiate away as fast as the insulation of one's skin and subdermal fat permit, but you also have to take into account that you are floating in full glory of stellar center. On earth, we are approximately 93 million miles (8 light-minutes, for the laid man) away from our stellar center, so think "inverse square law as applied to omnidirectional radiance" people! Also, consider that our planet is insulated from a large amount of solar radiation by the atmosphere, so floating in space, you can truthfully say "I got a blast of it", because you'll be rather slowly barbequed by the sheer amount of ultraviolet that you're recieving. Also, there's a lot of infra-red that's being blocked by the upper atmosphere, so that warm glow you feel while sunbathing? Yeah, just like that, X2. So, you're not going to need a blankie while floating in space.
As for the personal explosion due to rapid pressure differential, it's unlikely that the body would just explode. Most tissues have the strenghth and elasticity to withstand the internal 14.7-odd psi of normalized atmospheric pressure. The problems that you're going to encounter in a suitless space romp, are rather painful, because note that I said "most" when refferring to body tissues. Eyes, Ears, internal organs, and various other spots on the body will quite suddenly burst, due to the rapid pressure differetial caused by being thrust into space. And that's not to mention the way the blood will boil in the 0 pressure environment, painfully killing the host.
It's a rather satisfying experience to put water into a dish, and then put the dish in a vacuum chamber. Once the chamber begins to evacuate, the water boils quite well at room temperature. Just imagine your blood doing that
Re: another pointswordsketcherJune 21 2005, 04:39:13 UTC
Interesting. I'm only in ninth grade, so I have no resources or knowledge to argue with. You learn something new every day, I suppose. I wonder if chicken tastes good when bombarded by both the extremes of a vacuum and infrared and ultraviolet (hint hint good project for NASA hint hint). I'd make someone else eat it first, though. Thanks for the infinite wisdom,
In the radiant heat category, yes, heat will radiate away as fast as the insulation of one's skin and subdermal fat permit, but you also have to take into account that you are floating in full glory of stellar center. On earth, we are approximately 93 million miles (8 light-minutes, for the laid man) away from our stellar center, so think "inverse square law as applied to omnidirectional radiance" people! Also, consider that our planet is insulated from a large amount of solar radiation by the atmosphere, so floating in space, you can truthfully say "I got a blast of it", because you'll be rather slowly barbequed by the sheer amount of ultraviolet that you're recieving. Also, there's a lot of infra-red that's being blocked by the upper atmosphere, so that warm glow you feel while sunbathing? Yeah, just like that, X2. So, you're not going to need a blankie while floating in space.
As for the personal explosion due to rapid pressure differential, it's unlikely that the body would just explode. Most tissues have the strenghth and elasticity to withstand the internal 14.7-odd psi of normalized atmospheric pressure. The problems that you're going to encounter in a suitless space romp, are rather painful, because note that I said "most" when refferring to body tissues. Eyes, Ears, internal organs, and various other spots on the body will quite suddenly burst, due to the rapid pressure differetial caused by being thrust into space. And that's not to mention the way the blood will boil in the 0 pressure environment, painfully killing the host.
It's a rather satisfying experience to put water into a dish, and then put the dish in a vacuum chamber. Once the chamber begins to evacuate, the water boils quite well at room temperature. Just imagine your blood doing that
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