There is no Chinese and foreign scholar who studies astronomy and mathematics who is not interested in the orbits of the sun, the earth, and the moon. Since Chongzhen disclosed Newton's three laws of motion in advance, it has pointed out the direction for scholars to calculate the orbit of the planet.

After Chongzhen established the Department of Mathematics of Yenching University, he began to summarize the Chinese and foreign mathematical systems, and the mathematicians of the Ming Dynasty also began to touch the edge of the discipline of calculus.

And this time, two people each used a similar set of equations to describe the relative motion between the earth, the sun and the moon, making all the preparations for calculating the trajectory of the moon's movement, which naturally attracted the attention of the entire faculty and students of the Royal Academy of Sciences and the mathematics department of Yenching University.

Of course, the most surprising were the Jesuit priests and Chongzhen himself, who were shocked that in such a short period of time, Chinese mathematicians had once again stood at the forefront of the world's mathematical research, a big step ahead of Europe.

You must know that before Kinnige came to China with 7,000 volumes of European books, the country's natural sciences had begun to lag behind Europe, after all, the Renaissance brought countless treasures to Europe, and the exchanges with scholars of the Ottoman Turkish Empire also made European scholars stand at the top of the world's academic thought, which led to a dreamlike Renaissance period.

The Jesuit priests brought these European books to China in the hope that these books on the natural sciences, which were ahead of China, would open the door to the Chinese elite society so that the teachings of the Catholic Church could be transmitted to China. They once thought that this knowledge was enough for the Chinese to learn for a hundred years, but under the impetus of an emperor who was fanatical in the pursuit of scientific truth, the Chinese not only classified the so-called natural sciences in Europe in more detail, but also absorbed the knowledge they brought with them at a dizzying speed. How can this not be a concern for these Jesuit priests.

As for Chongzhen, when he saw the two equations handed over by the Royal Academy of Sciences, his first reaction was, if the trajectory of the moon's movement could be correctly calculated, would it be far from the day when the correct longitude would be measured by the lunar distance method at sea?

No one knows better than him what it means to be able to correctly measure the latitude and longitude of a ship at sea for the Ming Dynasty's navigational career. That's why he entered the venue today with a humble attitude. Of course, Chongzhen's attitude towards science today was also passed on as a beautiful talk by the academicians, teachers and students, and citizens present, which later set off a mathematical fever among the scholars of the Ming Dynasty.

Zhu Youzhen, who was sitting in the audience and listening, although he already knew the background of the two speakers, when they stood on the high platform to explain their equations, he still couldn't help but admire the young of the two.

The two speakers, one is a native of Tongcheng County, Anqing Prefecture, Nanzhili, Fang Yizhi, the word is secret, and he is only 20 years old. His father is Fang Kongzhao, although he is a physicist, but under the influence of the Taizhou school, he is open to natural science, and he is good friends with Qian Qianyi, Qu Shiyun and others.

Another speaker surprised the audience, because this one was not only a little lady, but also an extremely beautiful girl. Ye Xiaoluan, sixteen years old, the third daughter of Ye Shaoyuan, a famous man in Jiangnan.

In fact, when the academicians of the Royal Academy of Sciences knew that the other person who sent the formula was a young girl, they once collectively petitioned the emperor, thinking that it was better to hide Ye Xiaoluan's name and only let Fang Yizhi give a speech. However, with Chongzhen's strong support and personally writing a letter to invite Ye Xiaoluan, Ye Xiaoluan was allowed to walk on today's podium.

In the course of her speech, the academicians were worried that someone would embarrass Ye Xiaoluan, and the situation that led to the end of the mathematics seminar did not appear. On the contrary, because of Ye Xiaoluan's beautiful appearance and outstanding wisdom, he impressed most of the students present, and the order of the venue was better than when Fang Yizhi gave a speech.

Although the subject of calculus is only a basic subject in later universities, Su Changqing, who has graduated for many years, has long forgotten it. However, when he became Chongzhen, mathematics became a small pleasure to kill time, and he began to pick up some of the forgotten calculus knowledge.

But even so, Zhu Youzhen only understood half of the equations told by the two. At this moment, Zhu Youzhen had to admit that science cannot be broken through countless mental exercises, and in the end, it is necessary to rely on certain geniuses to promote the process of science.

I heard that a beautiful woman was talking about advanced math problems in the auditorium, which led to more and more students wanting to crowd into the venue. For the safety of the emperor, Xu Guangqi had to end the math seminar in a hurry, and Zhu Youzhen then met with Fang Yizhi and Ye Xiaoluan in the principal's room.

He took the two brocade boxes from Xu Guangqi's hands, handed them to Fang Yizhi and Ye Xiaoluan, and said, "There is a 2,500 silver dollar bill of exchange in the brocade box, which you can exchange at any bank. In addition, there is a badge and certificate from the Royal Academy of Sciences, congratulations to the two of you on becoming the first Fellows of the Royal Society. I hope that you will be able to work out the lunar table in the next step, which is very important for Daming. If you can do it, I have an even greater reward..."

Before Zhu Youzhen's words were finished, Ye Xiaoluan suddenly mustered up the courage to say to him: "Your Majesty, can I use this reward to exchange a request with you?" ”

Zhu Youzhen took a look, and said with a smile: "You don't have to return the reward, if you have any other requirements and can meet them, I will definitely satisfy you." ”

Ye Xiaoluan looked at the situation in the room, and couldn't open his mouth in embarrassment, Zhu Youzhen waved his hand to signal the others to retreat, Ye Xiaoluan blushed and whispered to Chongzhen: "Your Majesty, can you not let my sister enter the palace and let my sister marry the person you like?" ”

Zhu Youzhen, who was confused, subconsciously asked: "Who is your sister?" ”

Ye Xiaoluan quickly replied: "My second sister Ye Suan, because of Your Majesty, the family is worried about the marriage of the second sister. ”

Zhu Youzhen, who didn't know why at all, thought about it for a long time, and didn't think that he had any contact with this Ye Su, but looking at the face of the genius girl in front of him, he simply took off a piece of Panlong Peiyu from his waist and handed it over, "You give this jade pendant to Ye Hanlin, just say that I said it, and the marriage between the two sisters can be self-determined in the future, and you don't have to obey the requirements of others." If anyone dares to force you, I will give you a head. ”

Ye Xiaoluan immediately thanked Chongzhen with a smile and retreated, just as Zhu Youzhen was about to order someone to send the two back to the residence, he saw Fang Yizhi walking back with his head down again, and said to him: "Back to Your Majesty, this set of equations is actually not done by the student alone, the student's aunt has put forward many suggestions and calculations, and the student is really ashamed to receive this badge." ”

Zhu Youzhen did not take back the brocade box in Fang Yizhi's hand, although he was a little surprised, he quickly replied with a smile: "It's not bad to be honest." I wonder if your aunt is also in the capital? If she's willing to come and prove her mathematical talents, I'll be able to issue another badge of the Royal Academy of Sciences. ”

Fang Yizhi shook his head and said, "My aunt has been widowed for many years, and she stays at home in Tongcheng, so I'm afraid it will be difficult to come to the capital..."

Zhu Youzhen thought for a while and said, "In this way, if you can work with your aunt to calculate the lunar table, then I can also issue another badge." ”

Fang Yizhi saluted the emperor with some joy at this time, he grew up under the teaching of his aunt and mother since he was a child, so he was still very satisfied to be able to win an honor for his aunt. For the open-minded Fang Yizhi, rewarding the honor of a talented academician of the Royal Academy of Sciences is more suitable for his aunt Fang Weiyi than erecting a chaste archway.

When the others left the room, Xu Guangqi, who was standing on the side, stepped forward to stop Zhu Youzhen, and said to the emperor solemnly: "Your Majesty, the minister has something to discuss with Your Majesty, and please stay." ”

Zhu Youzhen stopped and said, "Although Mr. has something to say, my husband and I are not outsiders. ”

Xu Guangqi hesitated for a moment before he said to Chongzhen: "Your Majesty, after all, the Holy Father of Yan is the bloodline of the Holy Master of Dacheng, although his actions on weekdays are a little absurd, but please look at the face of the saint and leave some dignity for the Confucian Mansion."

Besides, since the person has died, there is no need for the local officials to dig out all these old stories. Now the events of Yan Shenggong during his lifetime and the old grievances of Confucius in the same place in previous years are spread one after another, and scholars all over the world are arguing with each other about Yan Shenggong. If this continues, the minister is worried that these verbal disputes will turn into academic disputes, and then they will become party disputes between the northern and southern scholars, which may be detrimental to the imperial court and the world's scholars. ”

Zhu Youzhen glanced at Xu Guangqi with some surprise, and said for a long time: "Mr. Xu has never cared about these trivial matters, it must be someone who said something in front of you to let Mr. come to persuade Yu Zhen." Can you tell who the gentleman is? ”

Xu Guangqi said very honestly: "It was Chen Zilong, the disciple of the minister, Huating, and the minister also thought that what he said was not unreasonable, so he came to speak to His Majesty." ”

Zhu Youzhen paced back and forth in the room for a few steps before he stopped and said to Xu Guangqi: "Actually, Mr. should not wade into this pool of troubled waters, the matter of Yan Shenggong and the Confucian Mansion has a lot of internal information, and it is not enough to be humanized by outsiders. ”

Xu Guangqi suddenly said to the emperor: "Yan Shenggong is in charge of my Chinese culture, but now Your Majesty is conniving at the officials to damage the reputation of the Confucian Mansion, and the ministers don't know what Your Majesty has to do, but it is related to the saints, and it is related to the scholars of the world, so it is not enough to be an outsider." I ask Your Majesty to make it clear. ”

Zhu Youzhen looked at Xu Guangqi for a long time, and then said: "I often say that what is taught at Yenching University is a new school, so dare to ask Mr., what is the old school?" ”

Xu Guangqi said without thinking: "The Four Books and Five Classics, the study of the imperial examination in the old days, should be the old learning." ”

Zhu Youzhen quickly asked: "So what does Mr. think the core of the Four Books and Five Classics, these old classics talk about?" What is the core of the new learning that I advocate? ”

Even though Xu Guangqi is knowledgeable, it is difficult to answer Chongzhen's question for a while, and seeing Xu Guangqi fall into silence, Zhu Youzhen couldn't help but continue: "In my opinion, there is actually only one sentence in the Four Books and Five Classics. Those who work hard govern people, and those who work hard govern people. ”

Xu Guangqi took a closer look, although he felt that Chongzhen's summary was a little biased, but the angle of looking at Jingyi was also meaningful. However, he still raised his head and said to Chongzhen: "People say that Your Majesty doesn't read the scriptures, but the ministers see that Your Majesty has a lot of experience in the scriptures." The minister wants to ask, what is the new learning in the eyes of His Majesty? What does this have to do with the Prophet? ”

Zhu Youzhen said unceremoniously: "I think that the core of Xinxue is also a sentence, if you don't work, you can't eat."

Since he is already a leader of the new school, he should know. The difference between the new and the old is the key to whether the Ming Dynasty can be reborn.

If Yan Shenggong does not fall, then the old school will not fall; If the old learning does not fail, the new learning will not be able to stand. Without the spiritual transformation of the people by Xinxue, then the reform of the imperial court would be a fire without a source and a tree without roots.

Even if we take advantage of internal and external troubles to implement it for a while, after the peace of the world, those scholars and doctors who advocate the old learning will eventually counterattack and restore the wonderful old world in their eyes.

As the Emperor of the Ming Dynasty, how could I watch our efforts and achievements finally be ruined. Do you think so, sir? ”