"Freedom to live and to think about life for its own sake is important and even essential to a child. Since we can't know what knowledge will be most needed in the future, it is senseless to try to teach it in advance. Instead, we should try to turn out people who love learning so much and learn so well that they will be able to learn whatever needs to be learned." -John Holt.
Thursday, February 3, 2011
How airplanes fly 29 January 2011
Dad did a simple and easy to understand experiment on how airplanes fly, idea from Norlin.( thank you!)
Follow by constructing these flying gliders, from uncle YF. (thank you!)
No comments:
Post a Comment