[X] My Assistant

[Rem31]

Can you walk on Mars (without) protection spacesuit? I think it is possible because it is only my thought. Is this true?

[Rem31]

And what happens when you are trying to breath in on the Moon or on Mars (unprotected) without pressuresuit? And what is the pressure (in) a airplane during a passenger flight at 36,000 feet high? And what happens when decompression occurs then? (totally loss of pressure) inside the cabin of the airplane.

[Bob Shaw]

And what happens when you are trying to breath in on the Moon or on Mars (unprotected) without pressuresuit? And what is the pressure (in) a airplane during a passenger flight at 36,000 feet high? And what happens when decompression occurs then? (totally loss of pressure) inside the cabin of the airplane.

Breathing does sound iffy, I agree - if you have a mask over your mouth and nose and have an internal pressure of a few pounds then your ears and eyes would give you absolute hell. Perhaps an eye-band with sealed goggles and pressure-blanced earplugs would work, but it still doesn't sound like much fun, and if it went at all wrong it'd be crippling. A proper Flash Gordon bubble helmet, though, might just work (and could solve the UV problem). Add rubber swimming-trunks (don't ask me to spell out why that might be a *good* idea), and we're heading for comic-book heaven!

As for the questions you raised, most of them are answerd on the NASA site mentioned in the post before this one. The pressure in a 36,000 feet actual altitude aeroplane cabin can vary, but 10,000 feet is probably about right (it actually depends as much on the flight profile as anything). Total decompression then would result in ambient air pressure being the norm, and breathing being assisted via those little drop down cup masks they tell you about but never let you play with. You don't go BANG! You don't bleed from every orifice! You don't fall over dead!

Bob Shaw

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