Due to limited space, the introduction is as follows:
Guo Shoujing
Guo Shoujing (123 1 year-1316 years) is a native of Xingtai county, Shunde district, Han nationality. Famous astronomer, mathematician and expert in water conservancy engineering in Yuan Dynasty [1]. In his early years, he studied under Liu, Liu, Liu, Liu, Liu, Liu, Liu, Liu, Liu, Liu, Liu, Liu, Liu, Liu, Liu, Liu. Yuan Renzong extended his life for three years (13 16), and Guo Shoujing died at the age of 86. He is the author of fourteen kinds of astronomical calendar works, such as "Push Step" and "Licheng".
Guo Shoujing has made outstanding achievements in astronomy, calendar, water conservancy and mathematics. [2] From the 13th year of Zhiyuan (1276), he was ordered to revise the new calendar, which lasted for four years and worked out the "chronograph calendar", which was used for more than 360 years and became the most advanced calendar in the world at that time. In order to revise the calendar, Guo Shoujing also reformed and invented twelve new instruments, such as simple instrument and altimeter.
In the first year of Yuan Dynasty (1264), Guo Shoujing was ordered to repair and dredge the ancient Xixia Canal, set up sluices and weirs to irrigate local farmland. In the 28th year of Yuan Dynasty (129 1), Guo Shoujing was appointed as the water superintendent of the capital, responsible for repairing the canal from Dadu to Tongzhou. It took a year to complete all the projects, named Tonghui River, and develop north-south transportation and water transportation.
1970, the international astronomical society named a crater on the moon "Guo Shoujing crater" after Guo Shoujing. 1977 In March, the International Asteroid Center named asteroid 20 12 "Guo Shoujing Asteroid".
Xu xiake
Xu Xiake (1587 65438+1October 5-16465438+March 8) was born in Jiangyin, South Zhili (now Jiangyin City, Jiangsu Province). After 30 years' investigation, geographers, travelers and writers in Ming Dynasty wrote a 600,000-word geographical masterpiece "Travels of Xu Xiake", which is called "a strange man through the ages".
Xu Xiake traveled all over the world all his life, covering 2/kloc-0 provinces, cities and autonomous regions [2]. "What people have failed to achieve, people have explored the unknown" [3]. Wherever he went, he explored seclusion, sought secrets, and recorded his travels, recording various phenomena, humanities, geography, animals and plants, etc.
yuan tiangang
(astrologer, astrologer, Taoist priest, feng shui master, prophet)
Yuan Tiangang, date of birth and death is unknown. China, the most famous fortuneteller in the Tang Dynasty. Yizhou Chengdu people. [1] Astronomers, astrologers, forecasters, feng shui masters, Taoist priests and fortune tellers in the late Sui and early Tang Dynasties. Being good at study style, he was so tired that he was ordered by Yan Guan in Sui Dynasty and Huojing (Lin Qiong) in Tang Dynasty.
According to legend, he knows "learning from the wind", that is, according to the wind and direction, good or bad luck can be broken. He is also proficient in facial expressions, six rings and five elements. He is the author of Liu Ren Jing, Five Elements Xiang Shu, Three Generations Xiang Fa, TuiBei Tu (written by Li * * *), Yuan Tiangang Gu Fu, etc.
Yuan Tiangang, the second son of Yuan Shouyi, a Confucian scholar in Sui Dynasty, was originally from Qinjiaao Township, Jiangjin County, Sichuan Province (now Qinggangbao, Yong 'an Village, Shimen Town, jiangjin district City, Chongqing), and then wandered in Luoyang, Chang 'an and other places, leading a wandering life. Gao Yuxiang, the founder of the contemporary Yiyang School, commented on Yuan Tiangang: "The name is like a bright moon covering a thousand years, and the sound is like Lei Zhen in ancient and modern spring.
Yeluchucai (1190-1244), a noble in China, was an important minister of Genghis Khan and Wokuotai Khan in Mongolia. He has been in office for nearly 30 years and has always been highly valued. At the beginning of the founding of Mongolia, a variety of policies and regulations were formulated.