SCUBA Diving, Urban Legends and Mythbusters

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And yours isn't?


Another thing to test which should be verifiable...

There is a depth at which the water pressure would equal the air pressure inside even a full tank. If you open the valve at that depth, the water pressure holds the air in. (Might need a deep sea submersible to test this witha full tank.)

Or a big pressure pot.
 
One more to add: Nitrox is less narcotic than air.
 

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