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I was once in a completely empty swimming pool (~25*10 m size) The surface of the pool was completely undisturbed. When I put my head under water I could hear a

I was once in a completely empty swimming pool (~25*10 m size) The surface of the pool was completely undisturbed. When I put my head under water I could hear a radio voice. Since I could not rule out the possibility that it was simply audio from nearby speakers that I simply could not hear through the air, I was always wondering whether it would be possible to listen to radio waves in water.

andromeduck 11y ago
You probably can't because, if nothing else, the water should act like a faraday cage.
Piskvorrr 11y ago
Your first explanation is far more likely: water conducts sound waves far better than air.
- dest 11y ago
  IIRC, sound waves are hugely dispersed in water (group/phase velocity change with frequency) so it would be difficult to understand what the speakers say / to enjoy the music, etc...
  - Piskvorrr 11y ago
    Yup. Quality is worse, but the sound carries much longer distances.
tombrossman 11y ago
Underwater speakers exist (think synchronized swimming or a PA system at a public pool). The sound quality isn't super but voice quality is good. Is it possible the pool was equipped with one?