Physics:Newton's Apple（5）
On this episode of Newton's Apple， we shall find answers to three questions: First， how do ice-surfers go so fast? Suchin is ready for her ice-surfing lesson. Second， how do they do DNA finger printing on blood-found scene of crime? Can they really identify a criminal? And third， Peggy will tell us if the home remedies really work.
- Added：2006
- Country：America
- Duration：30
- Time of update：2011/8/16 10:10:35