Chapter 43                                                             �

Liu Xiushui said: "I dare not contact the teacher, I am afraid I can't hold on."

Zhou Mengchen frowned and said, "What do you want to stick to?"

Liu Xiushui said, "Control water." He paused slightly. Light came out of his eyes and said, "I know that I am dull and I will not achieve anything in Qi. The teacher also said, "I am suitable for hard work. After thinking about it, I decided to do something to thoroughly survey and map the Yellow River map and hydrology. Because no matter who controls water, I need this."

"I did it. I did it. No one can get around me in the future."

"So I avoided my family in Kaifeng. In the past ten years, I went to Haikou in the east and Heyuan in the west, and traveled thousands of miles to explore the water conditions of the Yellow River. After more than ten years of hard work, I only have one book in front of me."

Liu Xiushui took out a note and handed it to Zhou Mengchen.

When Zhou Mengchen saw that it was the water condition of the estuary area, which had water conditions, maps, and various parameters related to the water of the Yellow River. When ordinary people read it, they were like a heavenly book, but when Zhou Mengchen saw it, he knew that this was the indispensable first-hand information for river management.

Zhou Mengchen said, "Thank you for your hard work."

Liu Xiushui said: "I prepared ten large boxes of materials, and after I heard that the teacher was ordered to treat the water, they all came. I hope I could help the teacher." Then Liu Xiushui sent someone to send more than a dozen large boxes.

Zhou Mengchen looked at the box and almost saw Liu Xiushui's youth for more than ten years.

To be honest, he didn't have much hope for Liu Xiushui. But he never expected that his disciple would shock him. He never expected that he could do this.

He devoted almost half of his life to the Yellow River.

It’s easy to say to do only one thing in your life, but it’s difficult to do.

Zhou Mengchen patted these boxes and said, "Okay, haven't you always wanted to learn how to control water? Now we are the master and the apprentice to study together."

Liu Xiushui said: "It is honorable to be able to hear the teacher's guidance again."

Zhou Mengchen said, "Sit down. You master and apprentice talk well."

After Liu Xiushui sat down, Zhou Mengchen asked: "What do you think should be the science of water conservancy?"

Liu Xiushui was silent for a while and said, "Disciple is stupid."

Zhou Mengchen was also used to this and said directly: "I think that first we must study the movement trajectory of water, a liquid, which is an idealized movement trajectory, naturally cannot appear in reality. But only by mastering this point can we understand the nature of water, rather than just a word of nonsense."

"Secondly, we need to understand the characteristics of the Yellow River itself."

"Only after these two points can we propose targeted solutions."

"What do you think we should do now?"

Liu Xiushui said, "I am stupid, please give me some advice."

Zhou Mengchen sighed slightly in his heart. He found that Liu Xiushui had not changed at all for decades. No, there should be changes. This change is a solid mind. Although Liu Xiushui spent more than ten years to map the Yellow River and measure the water conditions of the Yellow River, Zhou Mengchen was very moved.

But after Zhou Mengchen asked, he also understood that Liu Xiushui had not learned new things for a long time and had long been self-confessed.

Zhou Mengchen said: "First, I will do some experiments to study the problem of water flow. You can help me, and you brothers and sisters will come here. Then we will do this experiment together."

Zhou Mengchen has been away from the front line and has been very far away from research. Moreover, Zhou Mengchen's previous research was more repeated experiments. But this time it is not.

The reason is very simple. Zhou Mengchen did not study much about hydraulics. He did not have this direction in his previous life. However, he knew that the basic research methods of physics were used to study the directions of water flow, impact force, etc. under different circumstances. There is still no problem.

Perhaps study some calculation equations.

With these most basic and essential things and parameters, plus the things prepared by Liu Xiushui, we can try to establish a mathematical model related to the Yellow River. Only by theoretically verifying whether it is feasible to catch sand by binding water.

Liu Xiushui didn't understand Zhou Mengchen's thoughts, but nodded and agreed.

Zhou Mengchen actually felt that Liu Xiushui would probably not be able to help. Most of the things he worked hard to study back then were thrown to his teacher, that is, Zhou Mengchen himself. But Liu Xiushui worked hard after all.

Without Liu Xiushui's data, Zhou Mengchen has to work hard.

Therefore, he wanted to give his disciples this honor. On the one hand, it was rewarding merits, and on the other hand, it was Zhou Mengchen's own face. After all, Zhou Mengchen's other disciples were all successful. It was not very good to have such a disciple.

Zhou Mengchen continued: "Second, I have invited famous scholars from Jiangnan, Wang Shizhen to come here. I compiled a book on the Yellow River Chronicle and thoroughly studied the changes of the Yellow River. Only after understanding all the situations of the Yellow River can we know what to do. You don't have to do this. However, when governing the river, you must consider both aspects. Calculate the time and it is almost here. You have to ask more advice if you have time."

Liu Xiushui said, "Disciple understands."

For Zhou Mengchen, having this disciple is naturally a surprise. But what should be done is still something to do. In about a month, the people around Zhou Mengchen arrived one after another.

Zhou Mengchen's station in Xuzhou suddenly expanded.

And Wang Shizhen has arrived too.

Zhou Mengchen’s cultivation of the river is in the next step.

Xuzhou Water Conservancy Research Institute was established.

Zhou Mengchen handed over the common affairs of the river to Xu Wei, and he devoted himself to the research. This may be the first time in his two lives to preside over such a major topic. It was also the last time he presided over such a major topic.

He first faced a problem.

That is, the calculation is not enough.

Many problems, in later generations, only one program on the computer was needed to produce results, but it was difficult for Zhou Mengchen to reach the sky. Zhou Mengchen could not solve the huge amount of calculations.

If Zhou Mengchen had to calculate it alone, he would not be able to calculate it even after Zhou Mengchen died of illness at the age of 80.

Even if it has been simplified and simplified, it is difficult to just take an approximation.

Fortunately, Zhou Mengchen wrote letters many times and asked Jiajing for help, Jiajing was finally willing to release the people. Only then could Cheng Dazhen come from the capital.

Cheng Dawei didn't want to return to the palace at all.

After all, Jiajing regarded Cheng Dawei as a human-shaped computer. With Cheng Dawei's superb computing level, he solved many accounts, and most of these accounts were confidential, or something that Jiajing didn't want outsiders to know. Therefore, Cheng Dawei could only stay in the palace all year round and was not allowed to go out.

It is not easy for Zhou Mengchen to see Cheng Dazhen.

And these tasks are particularly not challenging for Cheng Dawei.

After Cheng Dawei came, he saw the task assigned by Zhou Mengchen to him, raised his eyebrows and said, "It turns out that calculus is used here."

Cheng Dawei has long mastered calculus. It seems that there is no application scenario. When calculating hydraulic power, calculus cannot be ignored in many places.

Zhou Mengchen said, "Can you count?"

Cheng Dawei said honestly: "No. The order of magnitude is too high. I have to calculate the year of the monkey and the month of the horse alone."

Zhou Mengchen frowned slightly and said, "Is there no way?"

Cheng Dawei said: "Teacher, maybe there is a way."

Zhou Mengchen said: "What method?"

Cheng Dawei said: "I'll break it down and let more people calculate it."

Zhou Mengchen suddenly remembered countless abacuses in the desert, which were the ones that fired nuclear bombs. Today, Zhou Mengchen's scientific level is far inferior to those of those who are the most popular. Instead, there are many calculations for water conservancy, especially for sandy rivers like the Yellow River. The more difficult it is.

However, it is difficult to do.

Zhou Mengchen said, "Okay, just do this. This may be the only way." He paused slightly and said, "How many people do you need?"

Cheng Dawei said confidently: "Han Xin ordered the troops, the more he would be better. I can let them use the best of the number of people he could find in the teacher."

Zhou Mengchen said, "Okay. Leave the matter of finding someone to me. I will leave the calculation time to you."
Chapter completed!