As we all know, the Ming Dynasty had a strict household registration system.
But few people know that in addition to military households, craftsmen households, and happy households, there is also a kind of Yin and Yang households, and their descendants are all Yin and Yang people.
It’s not a joke, it’s just intersex!
Children born in Yin-Yang households must learn professional knowledge from an early age. After graduation, they will become Yin-Yang people and serve as Yin-Yang officials in yamen at all levels. Those who are academically proficient can be recruited into Qintian Prison.
In principle, yin and yang officials cannot be recruited from outside, nor can they be promoted to other departments. However, there are a few exceptions, such as private masters who are admitted as yin and yang officials, and individual Qintianjian officials can be transferred to serve in the Ministry of Rites.
Li Jian, a junior official in the Qintian Prison, was born in an Yin-Yang family, and his ancestors have been Yin-Yang people for generations. His research direction is Feng Shui and Kanyu. In history, Li Jian was one of the main designers of the tomb of Emperor Jiajing.
However, Li Jian was also proficient in astronomy. At this time, he served as the eighth-rank spring official, responsible for the solar terms, astrology and other contents in spring.
That night, Li Yuan, the Imperial Heavenly Supervisor, summoned all the astronomical officials. He pointed at the astronomical telescope and said, "Your Majesty has ordered us to use this magical mirror to observe the moon carefully!"
What's so good about the moon?
A solar eclipse is a big event, but a lunar eclipse is an ordinary event. Even a student of Yin and Yang who is not above the level can easily predict the time of the lunar eclipse.
This is not because Yin Yang is so smart, but because Chinese sages of all ages have long calculated the angles between the ecliptic, the equator, and the ecliptic. They also summarized the rules based on observations. As long as they follow the established formulas and undergo complex calculations, they can predict lunar eclipses and eclipses.
Solar eclipse time.
However, this rule is occasionally inaccurate, and you can only consider yourself unlucky when encountering special cases.
The first person to come close to look at the moon was Zhou Zuo, deputy director of Qintian Prison. He lay there for a long time without saying a word, dumbfounded, and baffled the others.
Li Jian was the sixth viewer. The bumpy surface of the moon gave him a soul impact, subverting the worldview he had formed over more than 20 years!
At night, more than twenty astronomical officials stood on the observatory and looked at each other.
"Ahem!"
Li Yuan coughed twice: "Your Majesty said that there is no need to cover up or publicize it, let everything take its course, and he also asked us to study the celestial phenomena seriously."
"So, what exactly is the moon?" Zhou Zuo asked the question in his mind.
Li Yuan said: "Scholar Wang of the Hanlin Academy believes that the moon is a sphere in the void, and the same is true for the earth we live on."
"Huntian theory merges with Xuanye theory?" Li Jian asked in surprise.
China also has its own universe model, which is neither the heliocentric theory nor the geocentric theory, but the Huntian theory, the Gaidian theory and the Xuanye theory.
Gai's theory means that "the sky is round and the earth is round", Huntian's theory means that the universe is like an egg, and Xuanye's theory means that the sun, moon and stars all float in the void. The three models of the universe are consistent and have been adopted by astronomical officials of all ages, but they have not yet been able to argue with each other.
This is why.
The ancient Chinese calendar uses mathematical models to approximate geometric models. For example, the formulation of the "Time Calendar" means observing the movement of the sun and dividing it into segments. Each segment is solved using cubic equations to deduce the movements of various planets.
Trajectory has nothing to do with heliocentric theory or geocentric theory. No matter who is orbiting whom, it will not affect mathematical calculations!
Li Yuan also told officials at all levels of Qintianjian about Wang Yuan's theories of universal gravitation, as well as centripetal force and centrifugal force, and then asked everyone to verify it with observation data over the years.
In the next half month, Li Jian, a small eighth-grade astronomer, immersed himself in the vast sea of observation data.
Ancient Chinese and Western astronomy each had its own advantages.
The West has a geometric model of the universe, namely the geocentric and heliocentric systems, but it lacks massive observational data. China does not have a geometric model of the universe, but it has thousands of years of observation data, and its observational accuracy far exceeds that of the West.
When Li Jian was doing data verification, his mind suddenly changed. Inspired by gravity and observing the moon with his own eyes, he subconsciously had an idea similar to the "geocentric theory". But it was different from the Western geocentric theory, because the Western geocentric theory believed that the earth was stationary.
is moving, while Chinese astronomers believe that the earth is moving.
Immediately afterwards, Li Jian fell into doubt again. If the earth is moving, then who is it revolving around?
sun!
Li Jian dug out the astronomical observation data from the 150 years of the Ming Dynasty and verified them one by one. Then he was surprised to find that if the sun is the center of the universe, then all the observation data are consistent!
Li Jian even sorted several major planets through these data!
With countless observational data as support, once you think of the heliocentric theory, it is like breaking the window paper, and the remaining content is just supplementary.
Instead of discussing with his colleagues, Li Jian went to visit Wang Yuan to learn more about gravity.
Without any explanation, Wang Yuan threw the physics manuscript he had written to Li Jian and asked him to copy it back.
This seemed to open up a new world, the world of physics and the world of astronomy. Li Jian felt that he had touched the mystery of the universe.
"Jianzheng, these are the results of my recent research." Li Jian handed Li Yuan a stack of manuscripts.
At the top of the list is a schematic diagram of the solar system, except that the order of several planets is wrong!
Li Yuan did not dare to neglect, and summoned more than 20 astronomical officials to verify the theory of the solar system. Except for the dispute about the order of the planets, all other contents were approved. Then he stared blankly at a loss, and then shouted with joy
Yelled.
This thing was very sensitive in ancient China, but that was all, and it would not be hindered.
Historically, after Xu Guangqi came into contact with the geocentric theory, he actually used his theory to compile the "Chongzhen Almanac". The emperor did not stop him, as long as it was practical and useful, the Chinese people have always followed pragmatism.
Li Yuan rushed into the Leopard Room and presented a map of the planets in the solar system: "Your Majesty, Qin Tianjian was inspired by Wang Xueshi and knew that the sun is the center of the heaven and earth!"
"Is this happening?" Zhu Houzhao was extremely surprised.
Li Yuan said excitedly: "This is indeed true. And with this star map, in the future, calculating stars can be done with twice the result with half the effort."
Zhu Houzhao inquired in detail again, and then rewarded all the officials of the Qin Tianjian with one tael of silver. Li Jian, who proposed the heliocentric theory, was promoted to Zhongguanzheng. Although his rank did not change, it was a serious promotion, just like the one on the right
The assistant minister was promoted to the left assistant minister, and his powers and responsibilities became heavier.
The future work of Qin Tian Jian will also be divided into two directions.
One direction is to perfect the heliocentric theory, and the other direction is to adjust the worldview.
The so-called world view here refers specifically to the imperial power. Astronomers believe that the solar system is the center of the Huntian, and theories from all ages are still used outside the solar system, including the Gai theory, the Huntian theory and the Xuanye theory.
The emperor still descended to earth from the purple star, which does not conflict with the "heliocentric theory", because the purple star is in the outer sky and has nothing to do with the solar system.
From then on, Yin and Yang students in the Ming Dynasty had three must-read textbooks: "Mathematics", "Geometry" and "Physics"!
No matter which province Wang Yuan went to, the local yin and yang officials spontaneously paid homage to him as disciples.
Outsiders didn't know the inside story and thought Wang Yuan was a master of Yin and Yang. When he was a child, he was taught three volumes of the Heavenly Book by strangers in the mountains. He was treated the same as Liu Bowen in the story book.
(I came home very late and drank too much. This chapter was written temporarily. I will make up for the remaining chapter tomorrow.)