Seeing that Wang Yan's face was gray, but his eyes were even more shiny, Xu Ping sighed: "I have said that numbers can speak, and they will not lie. A thing that can be used as numbers is useful and can be explained more clearly than you say a thousand and ten thousand great principles. Alas, separated from Bajiao Town, Deputy Envoy Wang, I told you that you must measure the data you should measure so that you can return to Beijing to report. In the past month, I have written to ask you nine times, but I haven't

Once you replied to me. When we arrived in Sishui County, we met, but you still didn't reply to me. You just said that you thought the new canal could not be opened. Why couldn't it? I had already refuted your reasons at that time, but when I returned to Beijing, there were new reasons. The two items mentioned above were divided into what I should do when we broke up. And the last item that I have not mentioned yet is the first one you said, the Wang Deputy Envoy, who was divided into your name at that time!"

Wang Yan kept his face tense, and could not see his expression change. He just said coldly to Xu Ping: "It is in my name that I have investigated and thought that this new canal cannot be built."

"Where is the number? I haven't told you that whether you think you can or cannot, you must have clear numbers. What about the number you use when you convince others?!"

Han Yi, who had not spoken, looked at Xu Ping and Wang Yan with a calm face, and thought to himself. Wang Yan made a mess of things, and Xu Ping was responsible for joint and several liability as a commander. The commander is not just a powerful person. But if you can recover the matter, it will be considered as a result of the crime and you can not punish him. However, it seems that the Censorate should still participate in it.

Wang Yan looked at Xu Ping and couldn't help but sneer: "Xu Waijian, how much water is there in the river? What numbers do you want? How wide the river channel is and how deep the water is, I can tell you, but how much water flows, what do you want?"

Xu Ping shook his head: "I didn't tell you when Zhongmu County left? How wide the river channel is, how deep the water is, whether it flows fast or slow. After measuring it, can you calculate how much water flow? At that time, even Su Song, the youngest son of Su Shen, the magistrate of Zhongmu, understood what to do. Would you, the minister of the court, understand?"

Wang Yan could no longer help but grow louder: "Su Song is just a child with a yellow mouth. He doesn't understand anything. You can only coax a child like him! According to your method, I found a skilled craftsman, and they all said that I couldn't do it no matter what! For this, I don't know how much face I fell in front of others!"

"You can't make it, won't tell me? I wrote nine letters. If you don't reply, I thought everything went well with you! As for this, there is nothing to do now! As for whether you can make it, I tell you, don't tell me what I used. When I come back this time, Su Shen specially gave me what his son made. Jinshuihe, Caihe, and Bianhe, I tried all of them. The Huangkou Children's Made is well used!"

Zhao Zhen heard this and couldn't help but interrupt and asked, "What is it? Is it more difficult to do?"

Xu Ping turned around and held the scepter, calming his tone: "Your Majesty, it's not difficult to measure the speed of the river. But it still takes some effort to make it."

"Oh--" Zhao Zhen nodded. He knew Xu Ping's ability to make these strange things, and no one can compare to it. It is normal for Xu Ping to do it, but why is there a child doing it?

Seeing Zhao Zhen looking at him in confusion, Lu Yijian held the scepter and said, "Your Majesty, Su Song is the eldest son of Su Shen, the magistrate of Zhongmu. He is fifteen years old this year. A few days ago, he once held Xu Ping's handbook and entered the Chongwen Courtyard to borrow a telescope to observe the celestial phenomena. According to the people in the museum, this son is born to be extremely intelligent and can never forget everything, and is proficient in classics and history, and he wants to have a bright future."

This is Lu Yijian's ability. At such an age, all things big and small will be kept in his heart as long as they pass by his eyes. Although Su Song had Xu Ping's handwritten letters, he still reported to the Chongwen Academy and reported to the Zhongshu. Lu Yijian accidentally read it and then recorded it, and it was indeed useful at this time.

Zhao Zhen nodded, said nothing, but just kept the name Su Song in his heart.

After being interrupted by Zhao Zhen, Xu Ping couldn't continue to ask about measuring the water speed of the Luo River, so he had to put it down temporarily. The water speed measuring instrument that Xu Ping could make now is actually very primitive. It was nothing more than using pulp leaves to convert the linear speed of the river to the angular speed of the pulp shaft, adding a simple speed reduction and escapement device, and then reading it out. Because during this period, Xu Ping was effortless to do it, but it was not easy for others to do it.

The problem is that when we were separated, Xu Ping handed over the drawings of several slightly precise parts used in this set of devices to Wang Yan. In order to avoid not being able to cooperate, Xu Ping drew all the gears used on paper, and asked Wang Yan to find a skilled craftsman to cover the paper on the copper block, and then file it out directly with a file.

Because there are too many things that are lacking in standardization, and the processing methods and detection methods are insufficient everywhere. The parts made in the workshop that Xu Ping pushed open are like this. It is mainly controlled in the drawing stage, and the workers use files to memorize the drawings, and then choose them. Although the versatility is a little worse and the accuracy is not high, the process can be run at least. Especially for gears, where complex curves such as involute lines are used, the technical level of this era cannot be processed and even more undetectable. However, when drawing involute lines on paper, it can still be approximated by geometric methods. This approximation accuracy is enough. However, in this way, the workers' requirements are low and the technician's requirements are high.

I thought of this for Wang Yan, but I didn't expect that he would still mess up the matter. Xu Ping even wondered if Wang Yan didn't do it at all. This time I encountered such a strange thing, and I don't know how to cultivate it.

Xu Ping turned around and said loudly: "It turns out that Deputy Envoy Wang did not measure the water volume of the Luo River as agreed upon. Fortunately, after I arrived in Sishui County, I sent someone to measure it again. I originally thought that the comparison with Deputy Envoy Wang's test was not possible. Basically, the water in the upper reaches of the Luo River is enough for the newly opened canal and will not affect the downstream terrain. One is that the terrain between the water diversion estuary and the mouth of the Bian River should be as smooth as possible, so that the water flow rate in the new canal should be as low as possible. In addition to the water introduced when the newly opened river, the subsequent water volume is very small, because the water in the canal is basically still. Due to the wind and sun, a little water volume should be replenished. This water is replenished from the Sishui River and the ponds on both sides, and is not derived from the Luo River. Therefore, the problem of low water volume is not a problem."

"As for building the Doumen Sluice on the Luo River, it is because it is necessary to store the water during the flood season. When there is too much water, it is used as a backup water for dry water. Although the water in the new canal does not move, the water in the Bian River will eventually flow down. The water flowing out still needs to come from the new canal. Before the Bian River bed adapts to the new flow rate, it is estimated that there will be a lot of water replenishment every year. Try not to affect the original Luo River waterway."

After Xu Ping finished speaking, he saw that everyone in the hall looked a little confused, and knew that the last paragraph was still a little unfamiliar with people in this era. There were a lot of people who studied the science of life and life, but few of them went to study physics. Most of the limited number were studied carefully by the Episodes of the Book of Changes.
Chapter completed!