Imagining the 10th Dimension

I found this last week and have watched it about 5 times. This is a site dedicated to the book "Imagining the 10th dimension." There's a flash animation you must watch explaining each dimension, starting with 1 all the way to 10. I think previousy the furthest I've been able to contemplate (according to this site) is the 5th dimension. This is absolute mind-blowing brain candy, and I think you'd all get a kick out of it. Particularly well done and simple animation as well. Check it out.