Zhang Heng-a scientist who knows everything in the world.
First, moral spillovers Yunfu
Second, the poor number of heaven and earth.
Third, the worship of a thousand-year-old brand is highly respected.
Liu Hui, an ancient master of mathematics
I. Life and Times
Second, analysis, using words to disintegrate the picture.
Third, the lives of mathematics masters are romantic.
Zu Chongzhi, the first scientist to calculate pi accurately.
First, before Bo's visit, I was far from the past.
Second, specialize in mathematics and search for ancient and modern times.
Third, stick to the truth until death do us part.
Li Daoyuan, the Founder of Ancient Realistic Geography in China
First of all, the article introduces the life of landscape friends.
Second, the source of the competition Committee is wonderful.
Third, Li noted that Jing Bo was a descendant.
Jia Sixie, the founder of the ancient agricultural practical scientific system and agricultural encyclopedia in China.