Physics:Newton's Apple（15）
On this episode of Newton's Apple， we shall find answers to the questions: Do sharks have to keep swimming in order to breathe? Why are sharks attracted to red blood? Are sharks capable of eating a man? Why do tattoos go well over time? How does an oyster make a pearl? Polynesian Islands are the perfect place to find answers to these questions and many others.
- Added：2006
- Country：America
- Duration：30
- Time of update：2011/8/16 10:22:19