Physics of Xoay in trượt băng nghệ thuật

If you have not yet seen the Physics of Jumps in trượt băng nghệ thuật video, please do so, as it will explain things in this video. http://www.youtube.com/watch?v=eCX8gbZBkws Please answer these 4 questions: 1. Did you học anything from this video? 2. Was it interesting? 3. Was it understandable? What did you understand? 4. Did it have too many terms that you did not understand?