When the King of Qin, the King of Jin, the King of Yan, the King of Zhou, the King of Chu, and the King of Qi entered the palace to look for the Crown Prince, Zhu Biao, Zhu Yuanzhang had already received the news.
In other words, Prince Yan and Zhu Di had underestimated their father's Brocade Guard.
As the princes sat on the sedan chair and headed for the palace, a few of the royal guards had already disappeared into the crowd without causing any commotion.
Not many people knew about what happened outside the directorate.
However, the group of guards responsible for protecting the prince had heard it with their own ears.
Among these Prince's guards, only Zhu Yuanzhang knew how many of them were from the Embroidered Uniform Guards.
Usually, these Imperial Prince Guards were no different from ordinary Imperial Prince Guards. They were the most trusted subordinates of the princes, and they would be willing to sacrifice their lives to protect the princes.
However, when they encountered certain matters, these imperial guards would transform into the original Jinyiwei and report everything they heard and saw to Zhu Yuanzhang without missing a word.
For example, the Dragon Slaying Skill that they had heard today and the shocking scene of the nine thunderclaps that they had seen were news worthy of them reporting to Zhu Yuanzhang.
In the study room of the Hall of Heaven's Tribute, Zhu Yuanzhang looked at the memorial that the Embroidered Uniform Guards had just urgently handed over on the table in front of him. A hint of contemplation flashed across his eyes.
There was not much content in the memorial. The main thing was that Yan Changqing told the princes that he had the knowledge of " Dragon Slaying Skill ", and after he said that, nine thunderclaps fell one after another.
The princes 'decision and Crown Prince Zhu Biao's decision to go to Yan Changqing's place with the princes two days later to hear about the Dragon Slaying Skill.
Zhu Yuanzhang had never heard of Yan Changqing before.
Even before today, he did not have the slightest impression of the name Yan Changqing.
After all, Yan Changqing was just an insignificant ninth grade mathematics doctor in the directorate. He was the lowest existence in the Ming Dynasty's ninth grade and eighteen grades official system.
If he had any impression of such a lowly official, then he would have seen a ghost.
However, a ninth grade mathematics doctor dared to say that he had the knowledge of the Dragon Slaying Skill to teach the princes. It was as if he had the help of the heavens when he finished speaking!
Whether this was true or not, it was worth Zhu Yuanzhang's time to think about it.
"Mao Xiang."
Zhu Yuanzhang looked outside the study and said calmly.
"Your subject is here!"
The commander of the Brocade Guard, Mao Xiang, immediately entered.
"Find out about Yan Changqing, the ninth rank mathematics doctor of the Imperial College. I want to see all his information within two hours.”
"Yes, Your Majesty!"
In just a blink of an eye, all the information about Yan Changqing was presented on Zhu Yuanzhang's table.
When he saw the Jinyiwei's report, he had already sent people to collect Yan Changqing's information at the same time, just to present it at this moment.
Zhu Yuanzhang looked at Mao Xiang approvingly, then flipped open the information records regarding Yan Changqing.
"Yan Changqing, born in the twelfth year of Zhizheng.”
......
"My parents have passed away. I have no relatives or friends.”
......
Zhu Yuanzhang frowned slightly when he saw the information about his family and continued reading.
"In the ninth year of Hongwu, he was appointed as the teaching assistant of the Imperial College. In the tenth year of Hongwu, he competed with two mathematics doctors of the Imperial College and won. The two doctors of mathematics treated him with the courtesy of a teacher and voluntarily demoted him to a teaching assistant, so Yan Changqing was promoted to a doctor.”
"After being promoted to a doctor, the teaching method is very different from other doctors, but it is very popular among the students of the Imperial College.”
"If it's a quarter of an hour class, then rest for a quarter of an hour. After four hours of lessons, they rested for an hour.”
"He often led the students of the directorate to do all kinds of experiments and research. He once proved that the earth was a sphere by seeing the shaft of a boat first and then the body of the boat.”
" He also proved the universal gravitation by throwing objects to the ground. It means that the earth has a gravitational force. It is precisely because of the existence of this gravitational force that all things on the earth are bound.”
"I also calculated the circumference of the earth by calculating the sunlight projection of different poles.”
......
Zhu Yuanzhang couldn't help but frown as he read the incomprehensible and unbelievable experiments and methods of proof recorded on the paper.
Because he could not understand much of the content on it, and it was even a little difficult for him to understand.
However, the reasoning method written on it was extremely simple and credible.
Putting everything else aside, Zhu Yuanzhang believed in the fact that the earth was round by seeing the shaft of the boat first and then the body of the boat.
This was because back when he was fighting for the world with Chen Youliang, Chen Youliang's lake boat was mighty and came from afar.
At that time, the first thing they saw was the mast of the ship, and then the hull.
If the ground was flat, then the first thing one would see would be the hull. Only if the ground was round would one be able to see the mast before the hull.
As for other methods such as proving that the earth has gravity by throwing objects up and then falling, or calculating the circumference of the earth by sunlight projection, the calculations involved were too professional, and Zhu Yuanzhang could not understand.
However, Zhu Yuanzhang was still able to confirm that the other party's calculations were correct.
Zhu Yuanzhang continued reading.
......
"Today, the Imperial College's Chancellor, Kong Kebiao, expelled Yan Changqing from the Imperial College on the grounds that he had violated his teacher's example, misled the children, and ruined the academic atmosphere of the Imperial College.”
......
Soon, Zhu Yuanzhang had finished reading all the information about Yan Changqing.
After reading Yan Changqing's information, Zhu Yuanzhang keenly realized that Yan Changqing was definitely a genius in mathematics and other related aspects!
If the other party was a genius, then in other words, the Dragon Slaying Skill that the other party mentioned was true?!!
With this thought in mind, he recalled what was written in the memorial. When the other party said this, the Nine Thunderclaps "cheered" him on. Even Zhu Yuanzhang could not calm down.
Zhu Yuanzhang pondered for a moment and said,
"According to the previous arrangements of the princes, strengthen it a little more. You are only responsible for watching him. As long as he doesn't leave the Yingtian Prefecture, the rest is up to him.”
"But at the same time, no one is allowed to disturb him except the princes!”
"In addition, when the Crown Prince and the others go to listen to the lecture on the Dragon Slaying Skill in two days, I want to listen without them knowing.”
When it came to the Dragon Slaying Skill, Zhu Yuanzhang hesitated for a moment, but he still said it directly.
He wanted to hear what kind of knowledge could be called the Dragon Slaying Skill!!!
There was also the Dragon Subduing Technique that had been learned by millions of people. He was also very curious!!!
He wanted to see what these so-called Dragon Slaying Skills and Dragon Subduing Skills were.!!
"Yes, Your Majesty!"
The commander of the Brocade Guard, Mao Xiang, immediately agreed and turned around to leave.
......
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