This is that film I was telling you about yesterday, my pretties.
It's an educational ditty by Charles and Ray Eames, who had apparently become quite the filmmakers during the '60s and '70s. I think it's a brilliant piece of communication by a couple of brilliant designers. (After all, what is good design but good communication?)
9:03 well-spent, even if you don't like science or math or vaguely erotic picnics in Chicago.