Eureka!!!!
Eureka!! King Heiro of Syracuse had a collection of crowns of all shapes and designs. He had a crown for every occasion. Once he felt keen desire to have a new crown made of 24 carat gold. Therefore he called leading goldsmith of the land and asked him to made a crown of 24 carat gold. The goldsmith agreed. After 30 days goldsmith came with crown and handed it over to the king. King wanted to check the purity of crown before goldsmith get paid for his work. King asked goldsmith to come after ten days and get paid for his work. King called Archimedes, the well-known scientist and asked him to check the purity of gold. Archimedes replied "there is no way to check the purity. Once the gold has been turned into crown or any other ornaments." King asked Archimedes to find a way and he was sure that Archimedes could do it. Archimedes assured king that he will try his best