Zu Chongzhi (429-500) was an outstanding mathematician and scientist in China. People in the Southern and Northern Dynasties, Han people, the word Wen Yuan. Born in Yuanjia for six years, he died in Hou Yongyuan and Qi Hun for two years. His ancestral home is Qiu County, Fanyang County (now Laishui County, Hebei Province). In order to escape the war, Zu Chongzhi's grandfather, Zuchang, moved from Hebei to Jiangnan. Zuchang was once a "great craftsman" in Liu Song, in charge of civil engineering; Zu Chongzhi's father is also a DPRK official. Zu Chongzhi received scientific knowledge from his family since childhood. When I was young, I entered Hualin University and engaged in academic activities. Throughout his life, he served as an official in South Xuzhou (now Zhenjiang City), such as Shi and Fu joining the army, Lou County Order (now northeast Kunshan City), Servant Shooter and Changshui Captain. Its main contributions are in mathematics, astronomical calendar and machinery.
Hua tuo was proficient in medicine, especially surgery, and was later killed by Cao Cao.
Bi Sheng was a civilian in the Northern Song Dynasty. 1 1 In the middle of the century, he invented movable type printing with cement.