Im pretty sure that is the best video ive ever seen on the internet. I wish that simpsons intro still worked. There also is another really really cool simpsons Halloween episode where homer goes to the 3rd dimension.

here is part of it
[YOUTUBE]http://www.youtube.com/watch?v=oHucsXROY_A[/YOUTUBE]

Also a long time ago I watched a episode of nova (science tv show) where the subject was how the big bang happened. One theory was that is was from dimensions colliding is this the string theory or is it something else.