this post was submitted on 02 Feb 2024
184 points (94.2% liked)
Asklemmy
44151 readers
1317 users here now
A loosely moderated place to ask open-ended questions
Search asklemmy ๐
If your post meets the following criteria, it's welcome here!
- Open-ended question
- Not offensive: at this point, we do not have the bandwidth to moderate overtly political discussions. Assume best intent and be excellent to each other.
- Not regarding using or support for Lemmy: context, see the list of support communities and tools for finding communities below
- Not ad nauseam inducing: please make sure it is a question that would be new to most members
- An actual topic of discussion
Looking for support?
Looking for a community?
- Lemmyverse: community search
- sub.rehab: maps old subreddits to fediverse options, marks official as such
- !lemmy411@lemmy.ca: a community for finding communities
~Icon~ ~by~ ~@Double_A@discuss.tchncs.de~
founded 5 years ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
Isn't the bends the consequence of the oxygen tank and nitrogen in your blood; and if the air in your body starts at atmospheric pressure it should be fine (though no idea about the effects on the human body from such a sudden change)
You are absolutely correct. Breathing surface air would negate the bends. It's why freedivers can go down and straight back up from 400ft with no ill effects.
Yes. People seem to think the bends always happens on exposure to weird pressures, but it just doesn't. I guess they're understandably imagining it's the same as hot or cold.
Well, enough delta p is entirely capable of squishing an entire person through a thumb-sized hole, and while there's no hole here I image there'd still be some sort of shock wave, and the air already in your lungs returning to normal volume suddenly would be uncomfortable. Don't go too deep the first time, definitely ease into it.
Interestingly just 1 atm is fairly harmless. The first time someone got caught in a vacuum chamber they weren't sure what they'd find, but the guy just got up and said his ears hurt.