Posted June 22, 2008on:
My wife asked me why my Rollerblades were in my trunk. She knows I don’t use them where we live, there are too many hills. I’m a Physics teacher, the answer should be obvious – Conservation of Momentum. Tell me the truth, don’t you look to do something unexpected to get you students’ attention. In graduate school we called it disequilibrium.
You should have seen their faces the day I skated into class. Of course I have the racing bearings which work well for classroom demonstrations. The idea is to start at a standstill and throw a heavy object and watch the object go one way and me the other. I also carried a box of textbooks and while moving forward, threw them ahead of me. They could see that I instantly slowed down. This is what dreams are made of. There will be NO photos, use your imagination.