Beautiful and slightly terrifying. French freediver Guillaume Néry, who specializes in Constant Weight freediving, gently floats to the bottom of NEMO 33, the deepest pool in the world (113 feet). Hold your breath and see if you can make it to the bottom with him. I panicked after 30 seconds.
And how exactly does he just slide to the bottom like that? I thought that as long as your lungs were filled with air, you floated.
From a Youtube commenter: You obviously didn’t get a very high grade in physics. Yes, you do float at a certain point near the surface when your body’s density is less than that of water. Density is measured in mass per volume (m/V). The deeper you go, the higher the pressure, which means that the air in your long is now compressed. The smaller the air in your lungs become, the denser your body becomes, and at a certain depth, your body is now denser than the surrounding water and you begin to sink. That is why he used his in the beginning to push himself down, then later he just sank without effort.
The song, btw, is “Deep Water” by Portishead”
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