Name: Yuan Tiangang.
Alias: Yuan Tiangang
Ethnic group: Han nationality
Native place: Tang Dynasty
Area: Yizhou, Chengdu
Country: China Road Name: Tiangang Real Name: Tiangang
Occupation: Taoist, Li's master, astrologer.
Faith: Taoism
Yuan Tiangang was born in Chengdu, Yizhou (now Chengdu, Sichuan) in the early Tang Dynasty. Good style of study, tired and uncomfortable, Zeng was ordered by the salt officials of Sui Dynasty. In the Tang dynasty, it was a volcanic step. He is the author of "Six Benevolence Tutorial" and "Five Elements Book". There is a volume of Yi Xuan Jing Yao in Tongzhi Shi Lu. Nine one.
li chunfeng
An outstanding astronomer and mathematician in Tang Dynasty. Qishan people in Shaanxi. Born in 602 AD, died in 670 AD.
In 622, he served as a doctor in the Secret Pavilion and invited him to compile a new calendar. In 644, he compiled Jia Zi Yuan Li, which made great contributions to the development of astronomy, calendar and mathematics in later generations. He is also the author of "Faxiang Zhi", a total of seven volumes, on "the difference between the gains and losses of the previous generation of armymen", which has a great influence on later generations. In 64 1 year, he assumed the overall guiding responsibility for compiling Liang Shu, Chen Shu, Beiqi Shu, Zhou Shu and Sui Shu, and personally wrote Tianwenzhi, LvLi Zhi and Wuxing Zhi for the Book of Jin. Preserved the historical data of ancient astronomical changes and natural disasters.
Li is the first scientist in the world to rate the wind. In the world's earliest meteorological monograph "B has occupied", he divided the wind into 8 grades. 1000 years later, British scholars divided the wind power from zero to 12 based on B.
According to legend, Yuan Tiangang and Li are old friends and often get together to discuss and talk about things. And lying back to back on the floor together, one person wrote a picture, leaving a magical prophetic gobbledygook "TuiBei" for future generations. Yuan Tiangang was also a master of mathematics in the Tang Dynasty. Unfortunately, the specific life story and the date of birth and death are really impossible to verify. It's a pity that the official history is gone and unofficial history is gone.
References:
Baidu baike