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It was never a myth. Physic isn't mythical. We are 90+% water which is not compressible but it will compress what is. Have a dry suit? See how far down you can dive without air in it before it really, really starts to hurt. Then imagine being at100FSW and having that happen quickly.
****** sponge diver gear from the 1950-s did have one way flapper valves so i'm guessing this is just a myth, or it was only possible with very early hard hat gear.
If you think about it people who were using it were not stupid, just did not have the technology we had today. One way valves were not a recent invention.
****** sponge diver gear from the 1950-s did have one way flapper valves so i'm guessing this is just a myth, or it was only possible with very early hard hat gear.
If you think about it people who were using it were not stupid, just did not have the technology we had today. One way valves were not a recent invention.
That's what I meant Humans have a thing about learning by doing. It's why old divers will say the safety record diving has today is written in blood, because it literally is.
I wonder how often this actually happened, but definitely not quite a myth. Are we are allowed to post links to dtmag? They had a history article describing this type of accident in an early salvage effort -- the person lived, but it sounded pretty nasty. (Around 1840). I would guess those types of incidents resulted in the installation of the check valves.
I wonder how often this actually happened, but definitely not quite a myth. Are we are allowed to post links to dtmag? They had a history article describing this type of accident in an early salvage effort -- the person lived, but it sounded pretty nasty. (Around 1840). I would guess those types of incidents resulted in the installation of the check valves.
The Queensland museum has a C. E. Heinke 'Pearler' Diving Helmet, from the 1880 that is described as “an earlier style 'Pearler' helmet as identified by the non-return valve”
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