3 ms·

I don't understand why he didn't float? In my experience you bob to the top because of the buoyancy of air in your lungs - not above the water, but you at least

• Nadya 11y ago
  One might not realize it, but many people who already know how to swim will take a breathe in while lowering themselves into water. When diving to do a cannonball the first thing many swimmers will do is take a deep breathe. Someone who doesn't swim might... not. A child who doesn't know how to swim but is copying what they see others doing might be breathing as normal, have exhaled recently, and when they release the handles/ladder and enter the pool begin to sink. Not knowing how to swim and now head-under-water they are unable to get air into their lungs to have any amount of buoyancy.
• JoeAltmaier 11y ago
  Some of us don't float. We sink. Despite whatever the lifeguard training told you. Plunk, drop straight to the bottom.
• dragonwriter 11y ago
  > In my experience you bob to the top because of the buoyancy of air in your lungs Depends on a number of factors -- body composition (fat is less dense), how much air you have in your lungs (did you inhale or exhale before entering the water), etc.
• tomjen3 11y ago
  Muscle is much denser than fat, so if you are thin (or have a large amount of muscle mass) then you may not be floating.