Great Ming National Teacher

Li Yunya entered Room [-], and the officials had a tacit understanding with each other. For example, Room [-] was reserved for Zhu Youjian, Room [-] was his, Room [-] was for the Ministry of National Defense, and Room [-] was for Academia Sinica. Yes... no one will go to the wrong room casually, even if it is empty, no one will go in, and the service staff here must have enough tea, snacks and so on.

Everyone wears black formal clothes today, because winter is black among the five elements, which belongs to water, and the grand court meeting at the end of the year represents the conclusion, representing winter Tibet, many officials stand together, at first glance, they think they have traveled back to Shanghei Qin Dynasty, not Shanghong Ming Dynasty.

Zhu Youjian is also wearing a black robe, the snow-white tunic inside is embroidered with gold thread moiré patterns used by the leader, and the belt is also golden yellow, but thinner than Li Yunya's, with a suet jade dragon pendant underneath, Basil is used in the sachet. Zhu Youjian likes the smell of basil so much that he planted many under the tree in Qianqing Palace.

When Li Yunya came in, Zhu Youjian was talking to Gao, the governor of the central bank, and Xu Guangqi was sitting on the sofa in the corner, drinking tea slowly. Li Yunya didn't bother Zhu Youjian, and walked straight like Xu Guangqi.

Xu Guangqi is 76 years old this year, and he will be 77 after the New Year. He is considered a very old man in this age. Although he is still in good spirits, his actions inevitably start to slow down. When he saw Li Yunya, Xu Guangqi was about to get up, and Li Yunya hurriedly stopped him. : "Brother, sit down quickly, you don't need to get up." He sat opposite Xu Guangqi, poured a cup of tea for Xu Guangqi himself, "Why are you here, brother? I still want to go to Room [-] to find you later."

Xu Guangqi said with a smile: "The emperor wants to ask me about the phone number, and asks me to wait here for a while."

"You don't need to talk about the phone call. I'll tell him later. I have another thing to ask you."

Xu Guangqi said: "But about the Jingwei Kunyi map? I guessed that the national teacher was in a hurry, and it has already been made." He took out five pieces of paper from his file bag and handed them over.

Li Yunya took it over to look at it, and after seeing it, he couldn't help being both surprised and happy, wishing he could hug old man Xu and kiss him!

Li Yunya's statement that the earth is a sphere is unacceptable to almost everyone. Even if a Spaniard is called to testify, how Columbus discovered the New World and how Westerners ventured around the world still cannot be trusted by others, not even the people from Academia Sinica believe.

Li Yunya had no choice but to find Xu Guangqi again. Xu Guangqi was also dubious, so he wanted to prove it.

This is what the old man did. First, he set up a sundial platform outside the Zhengyang Gate in Beijing. When the sun shines on the sundial column and forms a shadow. When this shadow is parallel to the north-south meridian measured by the compass, the time is three quarters in the afternoon. , which is twelve noon.

Immediately afterwards, people traveled one hundred miles east and west to build a sundial respectively. At three o'clock in the local time, they checked what time it was in Beijing time, and then measured when it was twelve o'clock in Beijing. The angle between the sun shadow of a place and the north-south meridian.

Then, according to Li Yunya’s hypothesis that the earth is a sphere, if this is the case, the earth completes a circle of 24 degrees in 360 hours a day, that is, turns 10 degrees per hour, and compared, the final result is completely consistent. They accurately calculated the Beijing time at noon in a certain place, and later calculated the sunrise time, with an error within [-] minutes.

This not only proves that the earth is round, but also roughly calculates the circumference of Beijing's latitude.

Xu Guangqi was very surprised by this result, and aroused his interest. He applied for funds to build many sundials from east to west and from south to north, calculated the error smaller and smaller, and calculated the circumference of the two outer three latitude lines. , the more you go south, the longer the circumference, and the more you go north, the shorter the circumference, which proves that the ground under your feet is indeed a sphere!

In the next three years, Xu Guangqi began to measure and calculate the latitude again. This time, he calculated the length of the sundial. From the winter solstice to the summer solstice, the length of the sundial at the same longitude is different. Master the technology of measuring and calculating the angle of eclipse and eclipse, and then get accurate latitude lines, and then measure the diameter and volume of the earth based on these!

Li Yunya did not expect Xu Guangqi to be able to do this. On the Jingwei Kunyi map in his hand is a distorted map of China. The latitude lines are all curved upwards, and the meridian is zero degrees outside the Zhengyang Gate in Beijing. , diverge to the left and right, the east is called the east longitude, and the west is naturally the west longitude. Many important cities, such as Beijing, Nanjing, Yangzhou, Kaifeng, Taiyuan and other places, clearly indicate the latitude and longitude coordinates. Li Yunya was in a trance for a while. Looking at the map of the previous life, I feel that with this thing, it is much easier to draw a map!

Xu Guangqi also said: "We plan to make a kind of instrument that divides the universe. As long as we know Beijing time, we can quickly calculate the local longitude. As long as we know the 24 solar terms, we can roughly calculate the local latitude."

This time Li Yunya couldn't hold back, and hugged Xu Guangqi fiercely: "Brother Xu, you are simply the national treasure of our Ming Dynasty!"

Xu Guangqi smiled awkwardly: "The National Teacher is too much."

"No award! No award at all! What is a talent from Jingtianweidi? This is called Jingtianweidi's talent!"

At this time, Zhu Youjian finished talking to President Gao, sent the person away, and came this way: "What are you talking about? You still hugged him."

"Longitude and latitude map?" Li Yunya happily shook the document in his hand. Zhu Youjian took it over, looked at it, and handed it back. He still couldn't understand the meaning of being able to accurately calculate the latitude and longitude coordinates, and he was more concerned about it. It's about the phone.

Xu Guangqi said: "Returning to the emperor, we have already done the experiment, and we can respond to the sound across the room, but the microphone and the answering device still need to be improved, and there are also problems of information amplification and transmission loss. We tried it. I am speaking in this room, and the other A room with echoes that can produce the same sound as mine, just with too much noise and at a lower volume."

Zhu Youjian was overjoyed: "It has been successful? That is to say, we can really make a thousand-mile sound transmission?"

Xu Guangqi nodded: "It can definitely be done."

Li Yunya was also very pleasantly surprised: "It's only been a few years, and you have reached this point? Doesn't that mean that in a few years, you will be able to make calls across the country? Then what, you don't need to transmit voices over thousands of miles, first send The sound amplification is solved, I want to use it in the theater, and when we have a meeting, the people in the back row will not be unable to hear it.”

The more the three talked, the happier they were. Seeing that it was almost nine o'clock, they came out of the room together and walked to the elevator. The Taihe Palace has now used the elevator. The most primitive kind, an open iron cage, uses a motor to lift people into the elevator. Pull it up and put it down. Of course, the specific structure is more complicated. The steel wire rope needs to pass through a series of pulley blocks, and there is a weight like a weight hanging on the other side, but at last there is no need to climb the stairs. This time Xu Guangqi said nothing. In the same ride, only Li Yunya and Zhu Youjian took the first ride.

Everyone walked into the dome hall, and the year-end court meeting of the tenth year of Chongzhen officially began.

It was still Li Yunya who went up to give an opening speech first, and then Zhu Youjian went up to make a summary report.

Zhu Youjian is in charge of three departments, national defense, foreign affairs, and supervision. There is nothing to say about foreign affairs. In the eighth year of Chongzhen, various countries paid tribute, and envoys from Portugal, Spain, and the Netherlands entered Beijing.

The second is national defense, which is the most important thing: "In the past five years, our national regular army was 30, and the total military expenditure was 2000 million taels of silver per year. We fought two wars, and we won all of them. In the end, we have completely pacified the north, and there will be no more foreign aggression from the nine borders in the future, and the area of ​​the homeland has increased, almost adding another Ming territory..."

Then there is the commendation of the generals. This time it has completely resolved the chaos of the alien race in the north that the Chinese have suffered for more than 2000 years. It is of extraordinary significance. Many people have even shouted the slogan "Emperor Chongzhen". For example, Sun Chengzong and Yuan Keli were promoted to generals, Lu Xiangsheng and Sun Chuanting were promoted to lieutenant generals, Yuan Chonghuan and Qin Liangyu were major generals. Since they are generals, they will have titles. General Fuguo, Lu Xiang was promoted to General Zhengdong, Sun Chuanting was General Zhengxi, etc., and those below him, such as Yuan Shu, Zu Dashou, He Renlong, Mao Yuanyi, Zhou Yuji, etc., were also promoted.

What I want to say is that Zu Dashou was also promoted to major general and named General Yingyang, and then let him go home to retire after the New Year. He was in almost the same position as Wu Xiang, so he could die well.

The Ministry of National Defense is followed by the Ministry of Supervision: "In the past five years, a total of 640 cases of corruption and bribery have been investigated and dealt with, and 1000 cases involving more than 170 taels of silver. 39 people were sentenced to death, and 410 people were sentenced to life imprisonment. Among them were four senior officials at the ministerial level, 21 at the provincial level, and one at the prefectural level...a total of 560 million taels of silver were confiscated..."

According to the usual practice, Zhu Youjian spoke for half a day, and Li Yunya spoke for two and a half days. Li Yunya asked the people in the secretariat to sort out what Zhu Youjian said and send it to major newspapers. The next day, Daming Royal Daily and Fengyuan Daily , Beijing Daily and other five newspapers all published the headlines on the front page.

Many of them were frightened by the 2000 million taels of military expenditure. When Taizu and Chengzu raised millions of troops, they didn't need so much money, 2000 million taels!The annual tax revenue of the whole country is only so much. Doesn't this mean that we have to eat more than we need?

So some people wrote to Zhu Youjian, requesting to reduce the army, or restore the guard system, and some people wanted to strictly investigate corruption in the army.

In fact, when Zhu Youjian first saw this figure, Zhu Youjian was also taken aback, but after looking at the information, it became clear that the navy accounted for nearly a quarter of the 2000 million taels of silver, and There is daily training, and the guns are constantly fired. Even if the ammunition is empty, it is like burning money. He wants to save some money, but he can't save it here, and he can't save it there. I came to South China Sea to discuss with Li Yunya. What did Li Yunya say to reduce it? This is not enough, and it has to be increased!If you think the money is too little, then earn it. If you can earn and spend it, that is your skill!