Archimedes.

 Archimedes of Syracuse (Ἀρχιμήδης;) was a Greek scientist. He was interested in mathematics (μᾰθημᾰτικά), geometry (γεωμετρία,), astronomy (ἀστρονομία), engineering, philosophy, and physics (φυσική). 

Archimedes was born on c. 287 B. C., in Sicily. Also, he lived there. Archimedes studied in Alexandria.

This scientist made many important things for science in ancient Greece. There is the Archimedes' principle "Any object, totally or partially immersed in a fluid or liquid, is buoyed up by a force equal to the weight of the fluid displaced by the object." There is a formula bout this principle.

Archimedes said "Eureka!" when he understood it.

"Give me a lever and a place to stand, and i'll move the world" (δῶς μοι πᾶ στῶ καὶ τὰν γᾶν κινάσω) his quote, too.

Archimedes created different scientific writings.

He died on c. 212 B. C., in Sicily.