Powers Of 10

This is a video that I think I watched every year of my primary education, and every time, it rocked my world. The content did, but also the fact that we watched it on a double reel projector that the teacher would have to take 5 mintues to set up before we watched, then i was a bit captivated by the rewinding of the flim after we viewed it.

I also remember that none of my teachers ever wanted to discuss this video at all. They would just show it, and then move on to the next topic in the science book. I wonder why that is.