I remember this, but which documentary was it?

*vintage *spacy

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According to Qi, this is Bullshit. You're not in any danger while in a vacuum you simply can't breathe so you have to keep holding your breath. If you exhale though something happens where you lose control of all your orifices at once and start "ejecting" everything out of everywhere.

I would like to know what documentary this is as well

Tags for this video have been changed from 'Vacuum, space' to 'Vacuum, space, jim leblanc, astronaut, space suit' - edited by kronosposeidon

Boy, that sucks the air right out of you!

According to scientific study, QI is bullshit. You'll pass out in 10 or so seconds in a vacuum, and it's really hard to hold your breath when you're not conscious. Not that it matters, because I doubt any of the rest of that is true either. You've got about 90 seconds to be repressurized before irreversible damage is done.

Boiling saliva makes sense since the boiling point decreases along with atmospheric pressure. There's a myth that your blood will boil but your blood is independently pressurized by your heart, arteries and veins, so the loss of atmospheric pressure won't really have a direct effect on your blood pressure. I'm guessing if I was suddenly sucked out into space, my blood pressure would probably rise on account of the panic attack I'd be having. Of course, that wouldn't last long either.

A vacuum is perfect insulator, so freezing to death shouldn't be a significant concern.

http://en.wikipedia.org/wiki/Space_exposure

>> ^Yogi:

According to Qi, this is Bullshit. You're not in any danger while in a vacuum you simply can't breathe so you have to keep holding your breath. If you exhale though something happens where you lose control of all your orifices at once and start "ejecting" everything out of everywhere.

You're not taking into account atmospheric pressure of approximately 14.7 psi (at sea level). Without that pressure pushing against the skin, it would naturally expand somewhat (being elastic) and your blood pressure would drop. Your own link shows that one of the top concerns is ebullism, the formation of bubbles in body fluids due to reduced ambient pressure. That means low blood pressure.

>> ^Yogi:

According to Qi, this is Bullshit. You're not in any danger while in a vacuum you simply can't breathe so you have to keep holding your breath. If you exhale though something happens where you lose control of all your orifices at once and start "ejecting" everything out of everywhere.


You definitely do not want to hold your breath if you lose pressure. It would be like diving to 33ft (1 atmosphere), taking a breath from a SCUBA tank, holding it and ascending. The pressurized air in your lungs would expand as the pressure on your body decreases causing your lungs to pop.

*documentary *history

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