Have you ever wondered why is sky blue during the day and red during the sunset whereas the sky is black in space??
Did you know that the time taken by pendulum to travel from one point to another is independent of its mass!!
These concepts are taught to all of us but forgotten as time passes. Don’t worry, this video will teach you all these in simplest possible ways. It is a must watch to all those who think teaching is easy. A true inspiration, Walter Lewin at age of 75, delivers wonderful lecture at MIT on these concepts.