This crown is a fake! It's not made of real gold! But how can I prove it?
Send for Archimedes!
The Greek mathematician and philosopher sank lower into his bath and pondered the king's question.
And as he did so, he noticed the water level rise.
Eureka! he cried. And leapt out.
And, depending on which version of the story you believe, he ran naked down the st…
