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One noon in early June, a restaurant in Beijing.

The restaurant is doing a brisk business, full of diners who come to eat, the sound is noisy, and the atmosphere is warm.

In the hall on the second floor, in front of a wine table near the window, Zhang Heng and six other preparatory students from Nanjing Guozijian sat here with a lonely expression.

Today is a rest day every six days in the martial arts hall, and the seven people have transferred their holidays together and come to the restaurant to drink and relieve their boredom.

After entering the lecture hall, Zhang Heng and the seven people were not happy, because they refused to enter the lecture hall in Nanjing City in public, and provoked Li Yuntian, and there was a belittling meaning in the lecture hall, so not only offended the preparatory students of the North Zhili, but even the preparatory students of the South Zhili also drew a clear distance from them.

This made the seven people in a state of isolation in the lecture hall, except for the people in their respective classes, the other preparatory students were respectful of them.

Originally, Zhang Heng and the seven people passively entered the lecture hall, so they made up their minds and returned to Nanjing City to participate in the township test of Nanzhili as soon as the three-month training was over.

But during this period of time, the seven people were shocked by what happened in the martial arts, they were exposed to a lot of new things here, and they also adapted to and liked the lifestyle and rhythm in the martial arts hall, all of which made them full of interest.

Even Zhang Heng never imagined before coming to Beijing that the life of the martial arts hall, which was originally boring and even vulgar in their eyes, would be so colorful and refreshing. [31415671 Ruling the Ming Dynasty] 314 Ruling the Ming Dynasty 317

These outstanding students of Nanjing Guozi seem to have suddenly become small here, and there are many, many things that need to be understood and learned.

Although Zhang Heng and the seven people didn't say it clearly, if they left the martial arts hall like this, no one would be reconciled, but they had no reason to stay, after all, when they were in Nanjing City, they had "forced" Li Yuntian to write a guarantee document to let them go back to Nanjing, wouldn't it be ridiculous and generous if they stayed.

"Brother Ziwen, I heard that there is a yamen called 'Si Ke Yuan' under the lecture hall, and every time we take a break, the people in our class who are invigilated by Jingshi Guozi will go there."

In silence, a young man with thick eyebrows sitting opposite Zhang Heng suddenly raised his head and said to him.

Zhang Heng's character Ziwen, the seven of them are friends of Nanjing Guozijian, and they naturally match each other in private.

Hearing this, the people present looked at Zhang Heng one after another, and the preparatory students in their respective classes who were from the Jingshi Guozijian would go out every time they took a break, and later learned that those preparatory students had received Li Yuntian's permission to go to the Academy of Sciences, a department under the jurisdiction of the Lecture Martial Arts Hall, and they didn't know what to do in it.

"Let's go and see what's going on there!" Zhang Heng groaned for a moment, raised his head and drank the wine in the wine glass in his hand, then put the wine glass heavily on the table, and made up his mind expressionlessly. The update is the fastest and most stable

Zhang Heng had heard Sun Fang mention the Academy of Sciences many times, but he didn't know what the Academy of Sciences did, and now everyone finally came out once, since the young man with thick eyebrows and others were interested in the Academy of Sciences, then he decided to take advantage of leaving the capital to find out and unveil the mystery of the Academy of Sciences.

Among the several departments under the jurisdiction of the Jingshi Jiangwutang, the rank of the Academy of Sciences is the highest, which is the Zhengliupin Yamen, and Li Yuntian is in charge of the Academy of Sciences as the chief instructor of the Jiangwutang.

In addition to the highest rank, the Academy of Sciences is also the only yamen built outside the lecture hall.

The Jingshi Lecture Hall was built in the east of the capital, while the Academy of Sciences was built in a large secluded open area in the west of the city, surrounded by a high courtyard wall, and the plaque above the gate of the courtyard reads "Lecture on the Martial Arts Academy" six big characters.

The Academy of Sciences was built at the same time as the lecture hall, and compared with the lecture hall, it is very low-key, and it can be described as obscure in the market, and few people know its existence, let alone what it does.

"Speaking of martial arts, please don't enter!" There were several sergeants with guns and knives guarding the gate of the Academy of Sciences, and Zhang Heng and the seven were just about to approach when a sergeant stepped forward to stop them.

"We're here to see friends, and we're tired of going to talk to Sun Fang from the martial arts hall." Zhang Heng saw that the Academy of Sciences was heavily guarded, so he said to the sergeant quietly.

Hearing this, the sergeant glanced at Zhang Heng, got up and walked into the courtyard. [31415671 Ruling the Ming Dynasty] 314 Ruling the Ming Dynasty 317

"Brother Ziwen, you are a rare guest." After a while, Sun Fang came out quickly, and led Zhang Heng and the seven people in with a smile.

The Academy of Sciences is specially used to carry out the exploration and implementation of natural sciences, and the "sexual" nature is similar to that of later scientific research institutes.

Li Yuntian has set up seven departments in the Academy of Sciences: Physics, Chemistry, Mathematics, Astronomy and Geography, Equipment, Agriculture, and Economics, each of which has its own set of courtyards.

Sun Fang led Zhang Heng and his entourage to visit the Academy of Sciences, although the seven major departments are in their infancy, and the exploration and implementation are very simple and basic, but the people in each department are full of fighting spirit, busy with the affairs at hand, and full of enthusiasm.

There are more than 100 people in the Academy of Sciences, half of them are the prisoners of the Jingshi Guozijian, and the other half are the scholars of the state capitals of the Northern Zhili.

Without exception, these people have all listened to the classes of Mingxin Jushi in the Mingxin Museum, and they can be said to be students of Mingxin Jushi, they have broadened their horizons from Mingxin Jushi, and at the same time activated their thinking, which will attract them to the Academy of Sciences and devote themselves to the research of natural sciences.

Li Yuntian worked hard for the Academy of Sciences, and he not only had to go to great lengths to "abduct" those people in the Academy of Sciences, but also had to find ways to raise funds to build the Academy of Sciences.

During the reign of Emperor Yongle, he went around to fight, although he made great military exploits and shocked the world, but the treasury was almost exhausted by years of war, which made Xia Yuanji, the head of the household, speak out against it when Emperor Yongle made the fourth northern expedition to Mongolia, and therefore went to prison, and was not released until Emperor Hongxi ascended the throne.

Emperor Hongxi knew that the years of conquest had caused the people to suffer, so he took a series of measures to improve the people's livelihood.

Now that the treasury is empty, Emperor Xuande has spent a lot of money in order to teach martial arts, and there is really no extra money to invest in the construction of the Academy of Sciences.

Moreover, Emperor Xuande didn't realize what the use of the Academy of Sciences was now, so he asked Li Yuntian to slow down the construction of the Academy of Sciences, and wait for the Ming treasury to be abundant in a few years before construction.

Where could Li Yuntian wait so long, which meant that the exploration and research of natural sciences would have to be pushed back for several years, so he adopted a compromise method, hoping that Emperor Xuande could allocate a piece of land for the Academy of Sciences in the capital, and the funds of the Academy of Sciences would be raised by him.

Emperor Xuande saw that Li Yuntian was so persistent, and he didn't need to contribute from the treasury, so he waved his pen and assigned the piece of land in Li Yuntian's picture in the west of the city to the Academy of Sciences.

Li Yuntian's personal financial resources are limited, and he wants to open up the market in Guangzhou, so naturally he can't come up with the money for the construction of the Academy of Sciences, and besides, as an official of the imperial court, it is inconvenient for him to produce such a large sum of silver, and it is easy to attract criticism.

Therefore, Li Yuntian borrowed a sum of silver from the Kyushu Chamber of Commerce in the name of the Academy of Sciences, and agreed to repay the principal and interest after five years.

After several years of development, the scale and strength of the Kyushu Chamber of Commerce has swelled dramatically, in Jiangxi, Huguang, Shandong and the south and north of Zhili has developed a large number of members, every year the business has made a lot of money, becoming the third largest chamber of commerce in the Ming Dynasty after the General Association of Grain Merchants and the General Association of Salt Merchants.

Li Yuntian has never "appeared" in the Kyushu Chamber of Commerce since he came to the capital, perhaps those newly recruited members do not know the relationship between Li Yuntian and the Kyushu Chamber of Commerce, but the deacons of the Deacon Council, the core body of the Kyushu Chamber of Commerce, know his relationship with the Kyushu Chamber of Commerce.

The Kyushu Chamber of Commerce has been able to develop smoothly in recent years, and the business is booming, which is inseparable from the protection of Li Yuntian's golden signboard, so that the local officials and heroes do not dare to openly make it difficult and deceive them, and they are also inseparable from Chen Ningning and Zheng Wanrou's strategy, so that they have grabbed all the business opportunities in business, and they have made a lot of profits.

With the national policy of Emperor Hong Xi and Emperor Xuande to recuperate, the business of the Kyushu Chamber of Commerce will undoubtedly go to a higher level in the future.

Since the establishment of the Kyushu Chamber of Commerce, Li Yuntian has never opened his mouth to the Kyushu Chamber of Commerce, this time he borrowed money from the Kyushu Chamber of Commerce in the name of preparing for the establishment of the Academy of Sciences, and the deacons of the Kyushu Chamber of Commerce Deacons did not think about it, and unanimously decided to lend this money.

As a result, it only took one day for the deacons of the Kyushu Chamber of Commerce to gather the money that Li Yuntian needed.

Although this money is a lot, it is not much to spread it evenly on the heads of each deacon, and they don't think that Li Yuntian wants to be greedy for this money.

In order to avoid getting into trouble, this money was not directly given to Li Yuntian, but first entered the account of the household department, and then allocated it to the lecture hall by the household department, Li Yuntian didn't want people to gossip about it.

This matter is a secret of the Academy of Sciences, few people know about it, because the money is allocated from the Ministry of Households, people think that it is the funds of Emperor Xuande Qinzhun, and no one would have thought that it is a foreign debt borrowed by the Academy of Sciences.

As for how to repay the money in the future, Emperor Xuande did not ask Li Yuntian, this kind of trivial matter is not worth his attention at all, and at the same time, he is not worried that Li Yuntian will not be able to repay the money.

In Emperor Xuande's opinion, since Li Yuntian took the initiative to open this mouth, then there will definitely be a way to solve it at that time, and he knows that Li Yuntian's two concubines are all businessmen and wealthy people, so he will not stand by and watch Li Yuntian make a fool of himself when the time comes.

Zhang Heng's seven people couldn't help but be dazzled after visiting the Academy of Sciences all the way, as if Grandma Liu had entered the Grand View Garden, and was dumbfounded by what was happening in front of them.

The things that happened in the Academy of Sciences were unheard of and unprecedented, and they were all so novel, it was incredible.

In the physics department, Zhang Heng finally saw the buoyancy law that Sun Fang mentioned to him, and the physics department gave them a practical yàn to verify that the weight of the object suspended in the water is equal to the weight of the water discharged.

Not only that, Zhang Heng and the seven of them really saw a model of an iron ship floating in the pool in the courtyard of the physics department, and it didn't sink, which was really amazing.

In the Department of Chemistry, a few people are fiddling with a mixture of iron and sulfur powder, and when the mixture is heated to a red-hot state, they will find that the iron powder and sulfur powder will change strangely together, not only releasing a lot of heat, but also turning black.

In addition, if you mix alkaline water and turmeric water together, you will find that the two become red "colored" "liquid" bodies.

In mathematics, they are dazzled by the systems of equations and laws and formulas hanging on the walls.

In the Department of Astronomy and Geography, Zhang Heng and others saw a newly drawn map of Yunshan in the north of the capital, with some strange curves and standards on it, and after Sun Fang's explanation, they knew that those curves were the landforms around Yunshan, indicating height, terrain, etc., and the information was very detailed.

In the discipline of equipment, a group of pulley devices aroused the interest of Zhang Heng and others, and it was very convenient to use this group of pulleys to easily pull up two or three hundred pounds of heavy objects.

As for the economics and agricultural disciplines, although there are courtyards with the signs of these two disciplines in the academy, there are not many people in them, because the people of these two disciplines are mainly practice-oriented, and the personnel have left the capital to go to the local practice.

What particularly surprised Zhang Heng was that the people in the Academy of Sciences rarely used a "hair" pen to write, they usually used a pen made of goose "feathers", which could write sixty or seventy words every time it was dipped in ink, which was not only easy to carry but also very efficient.

For Zhang Heng and the seven people, after entering the Academy of Sciences, they had an illusion that they were like a world away, and they couldn't help but feel infinite emotion in their hearts