At the end of last year, Li Xia heard Guo Hongjing talk about his brother Guo Shoujing's flood control work in his hometown of Xixia, and he decided to recruit him.
Before Li Zengbo attacked Xingqing Mansion, Lin Zi had gone to Longxi to arrange personnel to take charge of the matter. He sent people to keep an eye on Guo Shoujing and sent people to accompany the army to keep him until the city was broken.
The reason why the Military Intelligence Department mobilized so many troops just for one person was because Li Xia had heard of his name for a long time. This kind of long-heard name refers to the scientific masters in the Song and Yuan Dynasties. He had heard of Guo Shoujing.
Even for Li Ye, a famous scholar in the north, Li Xia only knew about it after hearing Yuan Yan talk about it; as for Qin Jiushao, who was summoned by Zhao Yun for his "Mathematical Summary", Li Xia had never heard of him before dealing with him.
From this we can see Guo Shoujing's reputation in Li Xia's heart.
Of course, Li Ye and Qin Jiushao did not wait until the era when the dynasty was first established and everything was waiting to be revitalized, and they failed to make contributions through the ages. This is the reason why they are far less famous than Guo Shoujing.
In the face of the tide of the times, personal power is ultimately...a pity.
Geniuses like these are full of talents. Who doesn't want to benefit from it forever and be famous in history?
Before Li Xia attacked Xingqing Mansion, he knew what he was going to do after contacting the Western Regions. After establishing the country and allowing the people under his rule to have basic food and clothing, he would start to make little improvements in systems, technology, customs and other aspects.
Change, gradually surpassing the Yuan and Song Dynasties, and then becoming stronger than the Yuan and Song Dynasties.
The founding of the country laid the foundation and reformed the evils.
What Guo Shoujing was good at, astronomy, calendar, water conservancy, and arithmetic, were exactly what was needed at the beginning of the founding of the country.
Just last year, when Guo Shoujing was sent to Xixia, he met Xu Heng, a great scholar from the North, and Xu Heng gave him a comment.
"God bless me, how can it be so easy to come by in this world?!"
Mr. Xu Luzhai has been famous all his life, but he said it wrong this time. It was not that his evaluation of Guo Shoujing was wrong, but that Li Xia made his first four words completely wrong.
........
Jiang Chun didn't know these reasons, so he didn't understand why Li Xia was so enthusiastic.
Right at the entrance of the yamen of the Capital Water Division, he looked up and realized that King Qin could also make people feel like a spring breeze.
In Qingfu County back then, the young county captain who seemed unable to understand human speech was not really ignorant of etiquette, but Jiang Chun just had no need for him.
At this time, King Qin raised his hand with a smile, he was gentle and courteous, knowledgeable and courteous... If his daughter learns from him, she will definitely become a lady by now.
Turning his head again, he saw that Guo Hongjing had hugged the middle-aged man who was personally brought by the King of Qin.
"Brother, are you really here too?" "Yes, I am here too..."
Jiang Chun vaguely heard something strange in these words. He took a look at the man. He was in his early thirties and had a handsome appearance.
"Guo Shoujing Guo Ruosi."
After seeing the ceremony, Jiang Chun took his daughter out and murmured the name again in his mind.
"Calendar? Calendar."
When the father and daughter returned home, Jiang Di didn't hear Jiang Chun scolding him again. When he turned around, he saw him twirling his beard, not knowing what he was thinking about...
With his beard rolling between his two fingers, Jiang Chun thought about it and suddenly understood what was wrong with his "knowledge of Chang'an Mansion".
Because it’s not Jing Zhaoyin yet.
Jiang Chun still knows how much ability he has.
He was not a practical person like Guo Shoujing, who was able to make things happen, and it was impossible for the King of Qin to rely on Guo Shoujing as much. He was indeed suitable for an official position like the prefect of Chang'an, which required an all-rounder.
It will be difficult to rise further, but as soon as King Qin becomes emperor...
Jiang Chun got excited, rubbed his hands and stood up, pacing back and forth a few steps.
"Who else? Who else is more suitable to persuade me to join than me, a veteran who has been following the king for the longest time..."
~~
Over there, after Li Xia brought Guo Shoujing to the Dushui Division, they did not immediately arrange for his official position. They just exchanged a few words and reunited their brothers.
"Brother, can you follow me to your residence?"
"good."
When the two brothers left the Capital Water Division, they both remained silent at first.
When they reached the deserted alley, Guo Hongjing opened his mouth and said: "I didn't dare to say it in front of King Qin just now...
.My brother is here, and I don’t know whether to be happy or sad.”
"Don't ask, don't ask. I just want to see if you are happy or sad?"
"Happy."
Guo Shoujing patted him on the shoulder and said with a smile: "I am also happy that the brothers are reunited." Even so, there was a sad look in his eyes.
"But my sister-in-law and nephew are still in Hebei, so who will clean my grandfather's cemetery?"
Guo Hongjing also sighed: "I didn't expect that my brother would also be captured."
"Yes, I am concerned about them too. The water conservancy project in Xixia's hometown has just been completed, and it has not yet been proven that water transport can be carried out in this section of the Yellow River... They have been captured."
"Brother is going to complete the water conservancy project in Xixia's hometown so soon?!" Guo Hongjing was shocked.
He has been in Guanzhong for nearly a year. He has seen with his own eyes that the progress of various water conservancy projects in Guanzhong has only reached one-third. He did not expect that his brother has already completed the work in the Xixia hometown, which is larger in area.
If it were someone else talking about being captured, the next step would be to worry about their future and life.
The topic accidentally led to water conservancy, and the two brothers continued talking about water conservancy, leaving all happiness and sorrow behind.
Guo Shoujing nodded and said: "There are old canals in Xixia, such as the Beididong Canal dug in the Qin Dynasty, the Han Yan Canal and Guanglu Canal built in the Han Dynasty, and the Tang Lai Canal built in the Tang Dynasty... The channels are perfect, so there is a 'Sibei Jiangnan'
After I arrived with Prime Minister Zhang, I surveyed the water situation and thought that to control the water in Xixia, we should make new plans based on the old and build new gates and weirs."
"In order to make new plans out of the old, we need to build new gates and weirs?"
Guo Hongjing opened the door of a house and led his brother in. The courtyard was spacious, clean and bright, and could accommodate two families.
The two brothers didn't even look at it. They walked straight through the hall and pushed the map in front of a desk.
Just as Guo Shoujing was about to grind ink, Guo Hongjing had already taken out a jar of ink. "It's more convenient to use this here."
"Look, this is the Tanglai Canal. I dredged the original river channel for more than 400 miles, built embankments and dams, and controlled the amount of water entering the canal..."
The evening sun shines through the window and onto this table.
Guo Hongjing listened carefully to what his brother said and nodded.
This scene is like going back seventeen years ago, when a six-year-old boy followed his sixteen-year-old brother to read and practice calligraphy every day.
"There are more than ten main canals and 68 large and small branch canals. In this way, the entire canal is densely packed like a spider web and can irrigate more than 50,000 hectares of farmland."
He kept talking until the sun had gone, and Guo Hongjing lit the oil lamp, still admiring him. "My brother is far less talented than my brother."
"The same is true when you are building Guanzhong Water Conservancy. You should not only consider how to make the channel more perfect, but also consider how the people are doing and whether the people nearby can afford the construction period and workload, so as to make it simple and practical..."
Guo Hongjing has received a lot of praise recently. He thought he had done a good job, but now that his brother has come, he still makes a judgment.
He had always respected his elder brother, and was not upset by being compared to him. Instead, he became more interested in talking.
"Brother, do you know that there is a Gakushuyuan in Guanzhong, where your Iron Dragon Claw mud truck can be built, just wait until you go to the Yellow River to try it..."
"real?"
"Little Guo Guanren, and big Guo Guanren! It's time to eat!" An unknown old woman shouted from far away.
That was the person sent by Chang'an Prefecture to take care of Guo Hongjing's daily life.
Guo Shoujing put down his pen and realized that this was a foreign land. But just now he entered the house, picked up his pen, and wrote and painted so naturally that he thought he had returned to his home in Xingtai, Hebei.
The two brothers were about to turn around to eat when Guo Shoujing glanced at the large amount of documents on his desk and asked: "This is your errand in the enemy camp. What are you doing?"
"Calendar."
Guo Hongjing turned around again and said: "Today, the Song Dynasty uses the "Huitian Calendar", which is not accurate. The Zhao family has changed its calendar more than ten times before and after the southern crossing. In the north, since the Liao and Jin Dynasties,
, especially the "Da Ming Calendar" is used, but it is so old that the error is too large. The seasons have changed, the farming seasons are no longer accurate, and a new calendar must be promulgated."
Guo Shoujing trembled as if he had been stung by an insect.
"New calendar?"
The so-called "the right time, the right place and the right people", the right time comes first. But what is the calendar?
It tells the world what day it is, when spring, summer, autumn and winter will rotate, and how to arrange daily life and farming.
calendar
Dharma is time. If the calendar is wrong, everything will be chaotic.
For example, when Li Xia regained Chang'an, it might have been July 30 according to the Song Dynasty, but it might have been August 13 in Chang'an because different calendars were used.
Without the correct calendar, even the moon in the Mid-Autumn Festival is not round.
Eight hundred years ago, during the Southern and Northern Dynasties, Zu Chongzhi created the "Da Ming Calendar", which is still used in the Central Plains today, with increasing errors.
Of course, people have been revising it so that the Mid-Autumn Festival and New Year festivals in the north and south can be similar.
However, as the observations become more and more precise, the linear congruence equation becomes more and more difficult to solve. It requires mathematicians like Li Ye and Qin Jiushao to perform heavy calculations to arrive at the huge number of Shangyuan accumulated years.
There must be a new calendar, a calendar that is suitable for the current world and allows people to live and work reasonably.
Who will create it? Who will issue it?
Who can determine the time of this era?
In the next few hundred years, who will decide what month and day every living person speaks?
Guo Shoujing walked out of the house and looked up at the night sky. He has loved observing the sky since he was a child.
Even these years, when he was observing the sky, he seemed to hear the voice of God telling him that he was the one chosen by God to make the new calendar.
A genius like Zu Chongzhi.
Guo Shoujing longed for the day when he would present a new calendar to the Emperor of the Yuan Dynasty.
But now he is captured...
There are no stars tonight, just snowflakes flying all over the sky.
Some calendars are so confusing now that Guo Shoujing suddenly doesn’t know what night it is...