This video is very very interesting, it will confuse you greatly.
http://www.youtube.com/watch?v=yQP4UJhNn0I
Just how small are atoms? And what's inside them? The answers turn out to be astounding, even for those who think they know. This fast-paced animation uses spectacular metaphors (imagine a blueberry the size of a football stadium!) to give a visceral sense of the building blocks that make our world.
Lesson by Jonathan Bergmann, animation by Cognitive Media.