Introduce a scientist briefly.

Archimedes was a great mathematician and mechanic in ancient Greece. Born in Syracuse, Sicily in about 287 BC, he died in the same place in 2 12 BC.

Archimedes studied with Euclid's students in Alexandria, the cultural center at that time. There is no detailed record about his life, but many stories about him are widely circulated. He established the law of leverage and said, "Give me a fulcrum and I can move the earth"; Archimedes principle, the basic principle of hydrostatics, was discovered and used to identify crowns. Many war machines are designed to counter enemy attacks. ...

Later generations spoke highly of Archimedes, and often called him the greatest mathematician of all time with Newton and Gauss.