I was watching a video of a person free-diving without any gears, he was able to sink quickly in water without moving. That’s usually what happens when I swim too—I sink if I don’t move. However, I know that people can also train to float on water by relaxing their bodies etc. If an object’s ability to float in water is just an effect of its density to that of water.
How can the same person float or sink in water by will with minimal movements?
(I hope my question makes sense!)
In: Physics
You’re mostly water and very close to neutral buoyancy.
The difference is that you have two balloons for lungs. When they’re empty you’re slightly denser than water and will sink. When they’re full of air you’re slightly less dense than water and will float.
If you want to float, you’ll have to keep your lungs inflated.
a minority of people are naturally negatively buoyant. It’s almost always lean males. I’ve been negativity buoyant since early elementary school. I am a strong swimmer and have been around pools/lakes my entire life. Literally can’t float.
Damn near every summer camp, life guard training, etc had some instructor telling me to “just breathe in more, relaaaaax, just relaaaax.”
I was like “I’m fiiiiine, just dennnse.”
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