Physics:Newton's Apple（16）
On this episode of Newton's Apple， we shall find answers to the questions: First， how does steam power big machinery? Second， there seems to be new research on fat and health every week and I am confused. What is fat? And how do you control it? And third， parrots are fascinating. How can they talk? And why can they talk?
- Added：2006
- Country：America
- Duration：30
- Time of update：2011/8/16 10:23:13