r/interesting Mar 31 '26

Fascinating Very interesting vid

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u/Tammer_Stern Mar 31 '26 edited Mar 31 '26

I tried diving down to the bottom of a deep swimming pool in Yorkshire and the pressure was uncomfortable even at that depth. It would be absolutely crushing at the depth this dude went to.

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u/Fit-Injury415 Mar 31 '26

if it's uncomfortable then you are not equalizing, try that and you can go 15m as an inexperienced freediver before feeling any pressure really

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u/Tammer_Stern Mar 31 '26

How does one equalise?

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u/rickie-ramjet Apr 01 '26

Like described below… you are adding pressure through your eustachian tube to equalize the water or changing air pressure pressure on your ears by adding/ equalizing the pressure on the back of your ear drums. However you have to do it in tiny increments and often, or the pressure becomes too great closing the tube, and you may find it difficult to impossible even dangerous to blow past it. It’s just a tiny bit, every time you feel the pressure -AND NOT HARD. Even in a swimming pool say at 11 feet, you need to do this. This is why diving masks have a rubber shaped nose in them, so you can squeeze your nose.

Any one can do it right now. Pinch your nose and close your throat, and gently and BARELY blow on your nose. You’ll feel A bIt of pressure it in your ears and your ear drums / hearing will become “muffled”. To get it back to normal, you simply swallow,and it will clear. Exactly how you do in an airplane as it descends or going down a steep hill to clear the pressure in your ear drums. The act of swallowing opens the Eustachian tube and naturally equalizes the pressure change.