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End nuclear fusion! (lemmy.world)
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[-] FeatherConstrictor@sh.itjust.works 10 points 2 months ago

What is helium used for when diving?

[-] el_abuelo@programming.dev 39 points 2 months ago* (last edited 2 months ago)

Reducing the amount of narcotic gases in your mix so you don't act like a drunk idiot when in a life threatening situation.

Those narcotic gases are nitrogen and oxygen (although there's only so little oxygen you can have....and also only so much!)

Edit: extra info: oxygen and nitrogen are narcotic at depth, nitrogen is better understood and so often we talk about nitrogen narcosis, which tends to start hitting people after about 30m, but each person reacts different and to different degrees at different deaths. I personally notice it at about 50m or so. If I was more relaxed while diving it'd probably hit me sooner.

[-] tektite@slrpnk.net 7 points 2 months ago

and to different degrees at different deaths.

Was that supposed to say depths?

[-] el_abuelo@programming.dev 6 points 2 months ago
[-] mjhelto@lemm.ee 2 points 2 months ago

I've seen enough of YouTuber, Scary Interesting, to believe that either word would work!

[-] itslilith@lemmy.blahaj.zone 2 points 2 months ago

A fellow cave diving accident creepypasta enjoyer

[-] mjhelto@lemm.ee 2 points 2 months ago

Enough to make me never want to even attempt such a thing, myself! But I did know if the helium ratio stuff because of it, so it's still educational content.

[-] itslilith@lemmy.blahaj.zone 2 points 2 months ago

His videos actually helped me get into free diving, believe it or not. Still not touching cave diving with a 10ft pole, though

[-] mjhelto@lemm.ee 2 points 2 months ago

::visibly shutters::

[-] FeatherConstrictor@sh.itjust.works 5 points 2 months ago
[-] el_abuelo@programming.dev 6 points 2 months ago

Most welcome! I can talk endlessly about diving so welcome the question.

I added an edit with some more information incase you're more curious.

[-] Highstronaught@feddit.uk 2 points 2 months ago

Are there other gasses that could be used. E.g some of the noble gasses like argon or neon?

[-] el_abuelo@programming.dev 3 points 2 months ago

Ah very interesting, and yes theoretically I believe. Some people are experimenting with other gases due to the price and low availability of Helium.

Rebreathers are becoming a lot more accessible these days and so are making dives much cheaper, but they're still $20k so it takes a while to recoup the cost.

https://www.wikipedia.org/wiki/Argox

[-] Revan343@lemmy.ca 2 points 2 months ago

Hydrogen is used at extreme depths, but isn't so good at moderate depths, and has its own issues, like being flammable as all fuck

this post was submitted on 28 Sep 2024
414 points (97.9% liked)

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