Realo

They Looked Like BILLIARD BALLS

The links I posted from Chicago have all disappeared from the web. My quote about "racking them up again" now makes no sense to anyone. So here's an explanation and a new link to a demonstration of Pascal's Triangle that uses ball bearings. The one I saw used 30,000 palastic balls the size of billiard balls. It was part of the classic 1961 "Mathematica" exhibit that was once again going on tour. It didn't stay at the Musuem of Science and Industry for very long, and pictures of it have been removed from their web site. Probably to embarass me:)

Here's a reality check from someone who saw the exhibit long ago.

REALO!