Physics:Newton's Apple（37）
On this episode of Newton's Apple， we shall find answers to the questions: First， Andria Lorin from Portland Oregon asked， "How do veterinarians of the zoo take care of all those wild animals?" Second， David Hersue from California asked， "How does my engine make my car move?" And last， have you ever wondered how a can opener works?
- Added：2006
- Country：America
- Duration：30
- Time of update：2011/8/16 10:53:35