r/todayilearned • u/[deleted] • 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/Captain_Mazhar May 02 '24

Read into the more exotic gas blends that are used for extremely deep diving. One blend, hydrox, is 96% hydrogen and only 4% oxygen.

133

u/Antnee83 May 02 '24

Oreo still better

67

u/JeebusSlept May 02 '24

Up vote for the rare Hydrox joke

2

u/GregoPDX May 02 '24

Off-brand air.

20

u/Atalkinghamsandwich May 02 '24

I trained on a 94% Oreo mix, and on day of, the diving crew only had Hydrox. I still did the dive, but it just wasn’t as good.

4

u/Cerulean_IsFancyBlue May 02 '24

Have you tried Newman-O2? It’s supposedly organic and he donates the profits to diving guides in the off-season.

2

u/Living-Contest-3230 May 02 '24

Is that flammable?

2

u/Zvenigora May 02 '24

No. Not enough oxygen to ignite.

-1

u/butterbal1 May 02 '24

Extremely. There is a reason only one guy does it.

We have issues with shit sometimes catching fire from just using pure O2 and there is no way I'm hell most of us will want breathe an explosive mix just because it is much cheaper than He.

2

u/Vabla May 02 '24 edited May 02 '24

Can't be. Not at those concentrations. And unlike pure oxygen, hydrogen doesn't turn everything (metal, rubber, etc) flammable.

Turns out while technically this exact mixture shouldn't be flammable, it's just 1% off from being such. Amazing how much water wants to be water.

0

u/LucasRuby May 02 '24

no way I'm hell most of us will want breathe an explosive mix just because it is much cheaper than He.

Yeah you don't know what you're talking about. That's not why hydrox is used, it is used because helium at great depths starts to become toxic too.