Difference between revisions of "Out the airlock"

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'''Oxygen'''
 
'''Oxygen'''
  
Your body doesn't pass out until you run out of oxygen (or faints preventatively, which should not apply).
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You doen't pass out until you run out of oxygen (or faints preventatively, which should not apply here).
You would have easily a dozen seconds worth of oxygen in your bloodstream. And maybe a little more in your lungs.  
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After that things become less certain. Most of your body is fine for a few minutes, but you should assume brain and eyes will become less useful when suddenly and persistently deprived of oxygen.
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You would have easily a dozen seconds worth of oxygen in your bloodstream. And maybe a little more in your lungs - with footnotes.  
  
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So even if you don't seen it coming, like a door accidentally opening and you have just exhaled deeper than usual, you still have a chance to close it, or possibly to flee to somewhere with oxygen, before you pass out.
  
But even if you don't seen it coming, like a door accidentally opening and you have just exhaled deeper than usual, you still have a chance to close it, or generally to get yourself back to oxygen, before you pass out.
 
  
It's mostly just like holding your breath underwater. With some worries about air pressure afterwards, we're not ''hugely'' sensitive to that.
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After that things become less certain.
  
But only if you are relatively few actions away from safety.
 
  
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If you ''do'' see it coming you can extend it a little.
  
If you're conscious you can try to use your oxygen slowly,
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Relaxing means less oxygen use by muscles.
and last a low multiple of that.  
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Remember that even average people can hold their breath for a minute or two - when doing nothing.
Remember even average people can hold their breath for a minute or two.
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Exceptions and trained people a few multiples of ''that'' - freedivers do pretty amazing things.
 
Exceptions and trained people a few multiples of ''that'' - freedivers do pretty amazing things.
  
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Most of your body is fine for a few minutes, but you should assume brain and eyes will become less useful sooner as your blood oxygen gets low.
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It'll help to choose your use of muscles well.
  
If you ''do'' see it coming you can extend it a little.
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Gasping in the maximum amount of air is actually a ''bad'' idea,
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Gasping in the maximum amount of air is actually a ''bad'' idea, because gas laws says there will be expansion, which can be enough to rupture your lungs and possibly more.
because gas laws says there will be expansion, which can be enough to rupture your lungs and possibly more.
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So maybe half a lung{{verify}}, or actively allowing a bunch to be knocked out of you, is much better.
 
So maybe half a lung{{verify}}, or actively allowing a bunch to be knocked out of you, is much better.
  
  
Your bloodstream will have more trouble pumping blood due to volume and pressure,
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In short, stay calm, and be relatively few actions and relatively little time away from safety.
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Aside just oxygen presence, your bloodstream will have more trouble pumping blood due to volume and pressure,
 
so you won't be your strongest or happiest self, but you will function.
 
so you won't be your strongest or happiest self, but you will function.
  

Revision as of 21:05, 17 April 2021

This article/section is a stub — probably a pile of half-sorted notes, is not well-checked so may have incorrect bits. (Feel free to ignore, fix, or tell me)