As the first school in China to carry out curriculum planning for university mathematics majors, as early as the early years of the Republic of China, Peking University was the only mathematics department established at that time.

Its courses mainly include differential and integral calculus, differential equations, function theory, modern mathematics, calculus of variations...mathematical exercises, astrology, etc. There are 16 courses.

It covers basic subjects of mathematics, certain branch subjects of mathematics, reference subjects, general subjects and general study tool subjects.

When Cheng Nuo first arrived at the Mathematics Department of Peking University, he once asked Cai Yuanpei the reason for arranging these subjects. The other person’s exact words were:

"This plan focuses on both basic training and specialized training. After students complete these subjects, they can either continue to study for a better degree or work directly after graduation, achieving the best of both worlds."

It is precisely because of this characteristic that Cheng Nuo is more determined to deepen exchanges and cooperation between the aviation school and Peking University.

Raising his hand, Cheng Nuo called the waiter beside him over: "Master, do you have any good snacks here?"

When the waiter heard this, he quickly ran over and said with a smile on his face: "Sir, you have asked the right person. Common little things like chicken pancakes, roll cakes, mung bean cakes, etc. are the milk pancakes you want to eat."

, peach cakes, and dried vegetable mooncakes, I can find them for you."

Hu Shi was happy and asked curiously: "There is also a master chef in the back kitchen of our restaurant who can do this?"

The waiter chuckled: "Look what you said, our restaurant sells tea, there is no master chef who specializes in making tea for people. I will run errands for you to buy snacks. As long as you give enough money, the palace's

Desserts can also be brought with you.”

Maybe not many people take it seriously at the moment, but in the future, when more people benefit from the development results of the Academy of Sciences, recalling this sentence will greatly increase its influence.

Someone took the initiative to stand up and asked: "What else can trouble you? Tell me and see if I can give you some advice?"

Generally speaking, teahouses don't like teagoers talking about political affairs, but Sijiu City is such a big place, and many people live in a small area all their lives. Talking about cars and wheels over and over again has long since become boring.

Of course, these are not all benefits. Exaggerated events such as ashtrays worth US$600, coffee cups worth US$1,200, and teapots worth US$1,280 are also common.

Hu Shi thought for a while and said confidently: "Just like the United States, the home country of my teacher Dewey, countries such as Britain and France now buy weapons and equipment from them, and it does not affect these countries' gradually taking the initiative in the European War.

Among them, the United States established the "National Defense Technology Transition Commission" in the 1990s, which became a specialized guidance and coordination agency for the implementation of military-civilian integration reform. It opened the military technology market, implemented military-to-civilian transformation, maximized the application of military technology to civilian use, and improved military-civilian

The level of generalization of product standards.

Cai Yuanpei stood up at the right time, raised his body and asked: "In the final analysis, your main purpose of running an aviation school is national defense?"

Cheng Nuo secretly spit in his heart and said unceremoniously: "Arms trade can only solve the contradiction between 'have' and 'have not', and cannot fundamentally bring about qualitative progress in national defense technology. In international political struggles,

National defense technology is related to national security and is a very important and sensitive field.

Hu Shi on the side nodded: "Professor Cheng, I understand your original intention."

Cheng Nuo gave the man an approving look and then said: "We are short of students right now. As long as you graduate from middle school and are in good health, you can come to our aviation school to study. Food and accommodation will be included, and you will definitely not be charged a penny.

Yours, even..."

In my opinion, the only difference between this and throwing it into water is that if the money is thrown in the sky, the wind will blow it away."

Taking a panoramic view of everyone's expressions, the two of them were not only surprised but also looking forward to Cheng Nuo's next step.

One spreads to ten, and ten spreads to a hundred.

Cheng Nuo nodded and returned to his position: "For now, a country must maintain a separate civilian industry and a separate defense industry. The civilian industry and the military industry form separate systems.

, the country’s financial resources will definitely be overwhelmed in the long run.”

No matter how bad Peking University's reputation was before, it is still the number one national university in China, and Cai Yuanpei is still the president, so its reputation will only get higher and higher in the future.

At this time, Cai and Hu noticed that there were already three circles inside and three circles outside of a crowd of people watching the fun. No matter whether they could understand it or not, they should write down what they said first so that they could continue chatting with their friends later.

.

Cheng Nuo deliberately whetted their appetites and took a sip of tea before slowly saying: "In official terms, it means integrating the military with the civilians and integrating the military and civilians. National defense construction has always implemented the policy of integrating industry, academia and research, and transformed national defense technology into

Civilian use and promotion of economic development.”

Cheng Nuo stopped what he was doing and said seriously: "In other words, using the method of purchasing weapons to promote domestic military development and reform?"

Hu Shi adjusted his glasses and was also puzzled: "We are not good at high-tech technology. Besides, in this era of war and chaos, it is not easy to make some money. Why should Professor Cheng build an aviation school? It costs so much.

It's huge.

Of course, it can also be understood as trading the market for technology and market behavior, and everyone can make money."

In fact, to put it bluntly, with the right strategy, you can spend one dollar to do two jobs."

Unexpectedly, Cheng Nuo still didn't give up, and continued to squeeze his shoulder with his other hand: "Mr. Cai, please wait a little longer. I have to squeeze it back for you no matter what I have done in the past ten years."

In this way, Cheng Nuo later expressed the concept of complementarity between national defense and economic construction through some easy-to-understand words. Both adults and children gained more or less after listening to it.

And at this point, the United States in later generations benefited from this policy, constantly ushering in new breakthroughs in high and new technologies, and feeding back military progress.

Seeing that the tea guest was serious, he seemed to have this idea. When he looked around and no one was paying attention, he whispered: "Just tell you this, as long as you give enough, you can carry the water tank in the palace with you.

As for what route to take, we have our own ideas."

After pouring himself a cup of tea, Cheng Nuo laughed at himself: "Of course, as a public family, we cannot place all our hopes on them, so setting up an aviation school is a last resort."

Cheng Nuoyang raised his eyebrows and said sarcastically: "Without the accumulation and iteration of technology, even if there is the most advanced technology, can we understand and learn it? In the future, high-precision technical equipment, whether civilian or military, will be integrated into the system

If we move closer together, the possibility of imitation production will be greatly reduced.”

However, what Cai Yuanpei wanted was not this. He grabbed the other person's hand directly: "I mean, there is no need to squeeze anymore. I could have lived to the age of seventy. You have to get at least sixty in these two times."

Cheng Nuo just had no feelings for Hu Shi, and there was no need to become a grudge against him. He poured him a cup of tea and said with a smile: "It cannot be accomplished by one person. It requires everyone's help."

As he said that, the strength in his hands became slightly weaker.

This time, whether it was an aviation school or a teahouse lecture, it was just a means of publicity for him.

The reason why Cheng Nuo repeated what he said before here is to convey the future development path of the Academy of Sciences to more people through the mouths of the people.

Everyone originally talked about their own things, but who would have thought that the topics Cheng Nuo and the others talked about were so exciting that before they knew it, a group of people had gathered around them, listening intently to their discussion.

Cheng Nuo didn't answer in a hurry, he stood up with a smile and poured tea for Cai Yuanpei, and even walked directly behind him to squeeze his shoulders.

However, considering this era, what Cheng Nuo wants to do more is to use the power of the Academy of Sciences to cooperate with the public to achieve the purpose of consolidating national defense.

Then he stood up and deliberately raised his voice: "How to become a qualified military strategist, first of all, understand the economic potential of the country. The country must live first, and then arm itself.

Cai Yuanpei shook his head helplessly: "It's not us who spends the money anyway, you can figure it out yourself. But we can't eat much, and you have a lot of children. Just pack it up and take it back to your home when you leave."

And Cheng Nuo lived up to expectations, squinting his eyes and smiling: "I do have a way here."

Yes, no wonder it is better to buy than to make. All large items are imported, and there must be so much room for rent-seeking hidden there. Everyone on the front line has enough to eat, but it is a pity that the officers and soldiers on the front line suffer.

Even the grandfather and grandson who were playing the erhu stopped their work and followed the crowd to look this way.

Hu Shi blurted out without even thinking about it: "Simple, since others have it, let's buy it. Pilot training can be used as a bargaining chip in business negotiations. We will pay for the plane and they will train the people."

Hu Shi also said politely: "Yes, Professor Cheng, you just said that you had already had dinner when you came out, so buying so many snacks might be a waste."

An unknown tea guest with some knowledge asked loudly: "Everyone can explain the truth, but can you give me a solution?"

In addition, most of the people who come to teahouses to drink tea are men. Whether they are the upper class or the lower class, regardless of whether they are right or not, they always like to express their opinions on national affairs. The topic still leads to the recent national affairs of the country.

Hearing this, the smile on Cheng Nuo's face gradually dissipated: "So according to Dr. Hu's opinion, what should we do?"

Through the corner of his eye, Cheng Nuo roughly saw the surrounding situation.

In the end, amidst the applause of the whole house, Cheng Nuogong raised his hands and said politely: "Dear gentlemen, the aviation school matter has been settled. The money, land, and planes have all been arranged, but right now I still have nothing to do.

I’m worried about something.”

Otherwise it would be like putting a dead man into a heavy suit of armor, even if the armor is made of the hardest steel, it will not do anything to that person."

The crowd was like boiling water, boiling instantly.

"Grandpa, what is an airplane?" The grandson put his finger in the corner of his mouth and pulled the corner of his grandfather's clothes curiously.

Seeing the waiter running out happily, Cai Yuanpei took a sip of tea and put down the cup: "As the saying goes, no reward comes without reward. We just came out to have a cup of tea and let you two young people get to know each other. There is no need to do anything like this."

A big battle, right?"

Hu Shi did not give up: "What if we can really introduce advanced foreign technologies?"

"What even happened?"

"We will even cooperate with Peking University and get a diploma from Peking University at the same time in the future!"

"No, what do I want with that thing? It's so heavy and it still takes up space. When the Bagua Alliance came over, they would have scraped off the gold paint on it and it would be worthless." Seeing that the boy was about to make a joke.

Seriously, Cheng Nuo quickly stepped out and braked: "Let's just eat something we can digest."

After saying that, he gave the clerk some change and asked him to buy snacks first and use the rest as errand expenses.

"Remember the kite? It's a big kite without strings. The difference is that people can sit on the plane." Having traveled all over the country for half his life, my grandfather is obviously very experienced.

…

He opened his mouth to say something, but he didn't know what to say. In order to cover up his embarrassment, he had to pick up the teacup and drink water again.

Cheng Nuo laughed and said, "Then I will use less strength. Mr. Cai, do you think this strength is okay?"

This diligent effort made Cai Yuanpei a little overwhelmed, and he waved his hands repeatedly: "Stop, stop, stop, your hands are not weak. If you continue to squeeze my old bones, you will break them."

Those with sharp eyes saw Cai Yuanpei at the same table, thinking that this would make them more secure.

"Then without the kite string, wouldn't the plane fall down?" Sun Tzu continued to ask.

We cannot buy some cutting-edge national defense technologies, and it is simply unrealistic to imagine that we can achieve a military revolution through foreign imports. Even if we can buy them, they will either be outdated technologies from foreign countries, or second- or third-rate technologies."
To be continued...