This content was posted into the life tribe, a user created community! Be sure to check it out for more similar content posted by other like-minded individuals!
An air pocket saved his life
Is it me or does he sound like a chipmunk in the video?
He sounds like a chipmunk for very good reason, the nitrogen-oxygen mix of air that we breathe is rather toxic under high pressure.
The condition is called nitrogen narcosis, and it's a sort of anesthetic like effect that overcomes the diver. The effects are similar to being rather drunk, so it's kind of dangerous to have a diver in such a state.
Helium and Neon are the only known breathable gases that don't cause some sort of narcosis at high pressure, and helium is largely used in mixtures, known as either trimix or heliox. Trimix is a mixture of helium, oxygen, and nitrogen, and heliox is a mixture of helium and oxygen.
Also, divers can't use pure molecular oxygen at elevated pressures because they'll develop a condition called oxygen toxicity, which can lead to cell death in severe cases. Mixtures have to be used to prevent too much oxygen from being breathed in at once. Deep sea dives can be very complicated ordeals that require quite a bit of training, prep, and responsibility, as you can see.
But yeah, the reason he sounds like a chipmunk is because he's breathing a mixture of oxygen and helium, and maybe nitrogen.
Whoa excellent explanation. Thanks.
Yep this was great, makes a lot of sense now.
Thank you for adding this explanation.
totally sounds like a chipmunk