Basic Medicine:The Nature of Things——Hearing Things
Our ability to perceive some vibrations was finally tuned through millions of years of evolution, yet we regularly abuse it by exposing ourselves to noise levels like this——powerful enough to damage or even destroy our hearing. Tonight, the sense of hearing——how and why it evolved. Its importance to humans and other animals, and what it means to us to live in a world with so much powerful sound.
- Added：2006
- Country：Britain
- Duration：60
- Time of update：2011/3/11 15:03:55