Raju gurung

hi Everyone, Actually i just wanted to tell you about the video that i had seen in one of the blogs. And that blog features about the videos of the quantum. i Liked it very much. The site goes http://www.physicsvideo.blogspot.com i guess it would help one picture some details on quantum mechanic.

Don't mind with this question but why is it that light does not need any medium to travel. And as you said ford focus is a subset of the larger group defined by ' car '. i think every process has a reson. That's what i am trying to grasp.

thanks for the reply but i wanted to know why is the lights called electromagnetic radiation:-)

I was just wondering if any one could explain me why is the sunlight called the electromagnetic wave. if quantum theory could explain i did not fine any of the site. my friend suggested me this sitehttp://www.physics-physicsdiscussion.blogspot.com Is it informative, i could not judge