I had always believed Archimedes spent a certain amount of time running through the streets of Syracuse shouting "Eureka, I have found it!" Perhaps believed is a strong word, after all, it was so long ago it's unlikely anyone knows for sure just what occurred. What we know for sure is Archimedes was a great mathematician and provided the world great insights leading to the progress of humankind.
This breakdown of what may likely be the real story surrounding Archimedes' discovery of the measurement of volume is actually more interesting, though less entertaining, than the original. The site isn't too bad, either, even if it does have a slight pro-AGW slant to some of the articles.