Physics:Newton's Apple（34）
On this episode of Newton's Apple， we shall find answers to the questions: First， Mira Sumo from Minneapolis wants to know how to make beatiful goblets. Second， the question is from Abbey Wood about happy faces. He asks， "Why do we smile?" And last， welcome to this week's Science Try-its. Today's game will be quality againt quantity.
- Added：2006
- Country：America
- Duration：30
- Time of update：2011/8/16 10:40:20