Very interesting (and music by Elmer Bernstein... how cool is that?).

There's an exhibit at the Natural History Museum in New York that's kind of along these lines... except it shows physical distances and relationships between objects of relative size.. e.g. "the tiny marble in front of you is the size of pluto relative to jupiter, represented by the big sphere hanging from the ceiling. It's a similar relationship between an electron and it's proton".

I loved it, mostly because I would have loved it as a kid...