Physics:Newton's Apple（1）
On this episode of Newton's Apple， we shall find answers to three questions: First， how do water-skiers stay up? Suchin Pak will explore the science behind the waterskiing for us. Second， why do doctors check our reflexes while having a check-up? And third， Peggy Knapp will show us how to make fat-free foods.
- Added：2006
- Country：America
- Duration：30
- Time of update：2011/8/16 10:06:13