SCUBA Diving, Urban Legends and Mythbusters

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Upon getting wet, your snorkel will get caught in a rope, fishing line, old net, anchor line, bra strap, or commercial long line, causing you to be dragged miles out to sea where it will somehow become wrapped in kelp --forcing you to take off your mask to untagle everything --then you will die.
 
This one is not really SCUBA, but it is diving.
The early hard hat divers did not have a check valve on their air supply lines and if the air ran out the water pressure would force their bodies up into the helmet!
 
Does the air pressure on the INSIDE of a scuba tank increase as the diver ascends?

No and no. It actually increases VERY little because the tank itself expands due to the decrease in surrounding pressure. Thus the volume increases minutely causing a minute pressure drop. It also drops if your breathing. :wink:
 
Lets not forget the myth that all non-divers think we see sharks and sunken treasure galleons one every dive.
 
Myth:
A huge knife strapped to your leg will kill you but a butter knife slipped into a sleeve on your belt will save your life.

Fact:
Don't show up at a gun fight with either one.
 
Don't forget that drinking Ice Tea at certain dive resorts will cause Decompression Symptons :shocked:

:confused: Is there a story there? That's a new one on me.
 
https://www.shearwater.com/products/perdix-ai/

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