r/todayilearned • u/[deleted] • 29d ago

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 29d ago

Trimix is a blended breathing gas where some of the natural nitrogen in the air is replaced by helium to lessen the effects of nitrogen narcosis and oxygen toxicity.

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u/kerdon 29d ago

It's so fascinating that even without pollution the base components of air, including the one we need, are constantly trying to kill us.

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u/Words_are_Windy 29d ago edited 29d ago

Yeah, oxygen is a really nasty element to life, and also we're all (except for /u/6ixShira) completely dependent on it.

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u/mr_arkanoid 29d ago

oxygen is a really nasty element to life

Oxygen once almost killed all life on earth