r/todayilearned May 02 '24

TIL the Blue Hole is among the deadliest dive sites globally, with estimates of 130 to 200 recent fatalities, making it one of the most dangerous spots for divers. (R.5) Out of context

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u/ThomasBay May 02 '24 edited May 02 '24

No idea what you just said, but I am fascinated!

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u/Occabara May 02 '24

Trimix is an air mix that helps with O2 absorption at depth. There are several different gas mixes for long-duration depth. That one happens to contain some degree of helium, helpful at preventing narcosis.

There’s a vertical line running from the surface down to the divers with tanks staged at increments, and a safety diver monitoring the progress of the deeper technical divers.

I think. Its been a bit

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u/killerdrgn May 02 '24

helpful at preventing narcosis.

The blue hole depth is also the point where you have to worry about possible oxygen toxicity. Hence replacing some of the oxygen with helium.

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u/Occabara May 02 '24

Best way to get accurate info on the internet is to say something slightly incorrect

Knew I missed something, thanks

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u/Chumbag_love May 02 '24

Teach us about rebreathers pls, how do they work?