Tweet
Originally posted by chegitz guevara
Source?
Source?
Amongst others, why don't you trust me?
-
Amongst others, why don't you trust me?
-
As I understand, theoretically you could use a skintight suit that is pressurized to human specifications. However, keeping warm and cool in the extremeties and dry all around would be damned near impossible in such a system.The question is can we man survive on the most hospitable place outside earth with equipment that is commercially available and pretty much mass produced.
There's lots of opportunities for modest research and development spending on spacesuits for potentially large payoff. You would think that NASA would spend considerable sums on making their suits better, but I don't think they do.Last edited by DanS; January 19, 2005, 23:41.I came upon a barroom full of bad Salon pictures in which men with hats on the backs of their heads were wolfing food from a counter. It was the institution of the "free lunch" I had struck. You paid for a drink and got as much as you wanted to eat. For something less than a rupee a day a man can feed himself sumptuously in San Francisco, even though he be a bankrupt. Remember this if ever you are stranded in these parts. ~ Rudyard Kipling, 1891Comment
-
Here's some information on a spacesuit design that isn't even pressurized (except on the head, of course). Rather, it is elastic.
Not something you buy at your local outdoor outfitter quite yet, of course. And you would have to bundle up really good for Mars.
Anyway, NASA research was discontinued on it.I came upon a barroom full of bad Salon pictures in which men with hats on the backs of their heads were wolfing food from a counter. It was the institution of the "free lunch" I had struck. You paid for a drink and got as much as you wanted to eat. For something less than a rupee a day a man can feed himself sumptuously in San Francisco, even though he be a bankrupt. Remember this if ever you are stranded in these parts. ~ Rudyard Kipling, 1891Comment
-
I'm disappointed in the inability of most of you to think outside the box. I guess it's too easy to be negative. Thanks to all those who gave positive insight.
What can make a nigga wanna fight a whole night club/Figure that he ought to maybe be a pimp simply 'cause he don't like love/What can make a nigga wanna achy, break all rules/In a book when it took a lot to get you hooked up to this volume/
What can make a nigga wanna loose all faith in/Anything that he can't feel through his chest wit sensationComment
-
With regard to the NASA research, the thing that was holding them back from a skintight non-pressurized suit was the readily available materials in the late 60s. For all we know, suitable material might be commercially available nowadays (you see lots of different kinds of fabrics nowadays in the era of Polartec), but nobody has done follow-up research on it.
Edit: There has been some small follow-up research on this outside of NASA, after all.Last edited by DanS; January 20, 2005, 00:28.I came upon a barroom full of bad Salon pictures in which men with hats on the backs of their heads were wolfing food from a counter. It was the institution of the "free lunch" I had struck. You paid for a drink and got as much as you wanted to eat. For something less than a rupee a day a man can feed himself sumptuously in San Francisco, even though he be a bankrupt. Remember this if ever you are stranded in these parts. ~ Rudyard Kipling, 1891Comment
-
Ah, I see that the thread you linked had a discussion about this.
Hadn't heard of the Mars Skin project. Seems pretty cool.I came upon a barroom full of bad Salon pictures in which men with hats on the backs of their heads were wolfing food from a counter. It was the institution of the "free lunch" I had struck. You paid for a drink and got as much as you wanted to eat. For something less than a rupee a day a man can feed himself sumptuously in San Francisco, even though he be a bankrupt. Remember this if ever you are stranded in these parts. ~ Rudyard Kipling, 1891Comment
-
Duct tape
Captain of Team Apolyton - ISDG 2012
When I was younger I thought curfews were silly, but now as the daughter of a young woman, I appreciate them. - RahComment
-
You see some science fiction with unpressurized skintight suits. They wore these type of uniforms all the time in Crest of the Stars/Banner of the Stars. Upon depressurization, you would grab a helmet and throw it on. Presumably, it would have a small oxygen supply. Also, I assume the material in the skinsuit was pretty well insulated somehow.I came upon a barroom full of bad Salon pictures in which men with hats on the backs of their heads were wolfing food from a counter. It was the institution of the "free lunch" I had struck. You paid for a drink and got as much as you wanted to eat. For something less than a rupee a day a man can feed himself sumptuously in San Francisco, even though he be a bankrupt. Remember this if ever you are stranded in these parts. ~ Rudyard Kipling, 1891Comment
-
I think the reason why they're not thinking outside the box is pressure indeed.Originally posted by Pax
I'm disappointed in the inability of most of you to think outside the box. I guess it's too easy to be negative. Thanks to all those who gave positive insight.
If you often scuba-dive, I take it you have the habit of stopping your swim-up at regular intervals (so that your lungs can progressively adapt to the new, lower pressure without exploding).
The differences of pressure between deep water and surface are enough to kill you if you don't go progressively enough. And yet, the difference of pressure is faaar inferior to the difference between Earth and Mars. If you get out of a pressurized vehicle and were confront to Mars's tiny pressure, you'd die as surely as if you swam up from the most extremes depths of sea to the durface in one second.
If you don't wish to play the bubble-man on Mars, maybe the "outside the box" possibility would be to use your monthes-long trip to progressively adapt the cabin pressure to 1 kPa (Mars's pressure). But I absolutely don't know if the human body could live under this pressure at all, regardless of the transition time."I have been reading up on the universe and have come to the conclusion that the universe is a good thing." -- Dissident
"I never had the need to have a boner." -- Dissident
"I have never cut off my penis when I was upset over a girl." -- DisComment
-
Yes, there's this thing called explosive decompression.
Basically, your body generates sufficient internal pressure that pushes outwards to counterbalance the atmospheric pressure. If this external pressure is removed, you will blow up like a balloon.(\__/) 07/07/1937 - Never forget
(='.'=) "Claims demand evidence; extraordinary claims demand extraordinary evidence." -- Carl Sagan
(")_(") "Starting the fire from within."Comment
-
Even without that, there is a point where pressure will be so low that even 100% oxygen will allow sufficient oxygen for survival.No, I did not steal that from somebody on Something Awful.Comment
-
Re: Re: Pack for a day trip to mars!
but mars atmosphere is so thin. surely the partial pressure of CO2 isnt that much higher than earths despite mars having a nearly 100% CO2 atmosphere. And the cold youre thinking of only applies away from the equator and at night. Mars is typically above freezing near the equator in the day.Originally posted by chegitz guevara
Then you die. I don't think we have any other type of "clothing" that would suitably insulate us against the extreme cold of Mars. You also need a self-contained air supply, as the amount of CO2 is toxic and would immediately kill you.
After death you'd freeze and dehydrate, like an Andean mummy, and slowly the windstorms would scour your bones clean.
I think you'd need plenty of insulation and many many oxygen tanks until night fell at which point you would die.Comment
-
this is popular misconception just ask nasaOriginally posted by KrazyHorse
Are you out of your mind?
P = 1KPa
have fun when all your blood vessels burst and your eyes pop out of your skull.
Mars isn't a vacuum so you could breathe 1KPa oxygen from a tank and safely boost the pressure a bit higher with adustments to a regulator. Your best bet would be to land in a very very deep valley near the equator where the pressure will be considerably higher. Although admitably the body requires at least 47 mm Hg of ambient pressure to avoid excessive drying from boiling at exposed moistened surfaces such as the eyes or oral-nasal cavity. Furthermore, oxygen at partial pressures lower than 30mm Hg would be insuficient to maintain consciousness. So the valley would have to be *quite* deep, and you'd better hope the martian barometers are near record highs in that region that day.
Average surface pressure on mars is a bit less than 10 mm HgLast edited by Geronimo; January 20, 2005, 07:11.Comment
-
This has to be the first time I've ever seen Krazyhorse demonstrably wrong about any science related question.Originally posted by KrazyHorse
Any skin exposed to Martian atmospheric pressure would suffer massive edema and cause serious internal bleeding.
Not a pleasant way to die.
In english please.
For the slow: 1 Pascal is 1 Newton per metre squared. 1 kilopascal is 1000 Pascals. Regular atmospheric pressure at sea level on earth is around 100 kilopascals. On Mars atmospheric pressure at ground level is close to 1 kilopascal.Comment
-
Low pressure can have important reverse effects for people, even ones that are very well acclimated. Professional alpinists can't stay long at the summit of mount Everest, despite their oxygen and water reserves, because of the ill effects of pressure alone. And pressure at the Everest Summit is ca 33% of the one at sea level. Mars's pressure is 1%"I have been reading up on the universe and have come to the conclusion that the universe is a good thing." -- Dissident
"I never had the need to have a boner." -- Dissident
"I have never cut off my penis when I was upset over a girl." -- DisComment
Comment