Seeing that Wang Yan's face was ashen, but only a pair of eyes were more shining, Xu Ping sighed: "I said a long time ago that numbers can speak, and they won't deceive people. Pen | fun | pavilion www. ｂｉｑｕｇｅ。 info A thing can be said in numbers, which is more useful than you can say a thousand or ten thousand sentences, and it is more clear. Alas, separated from Bajiao Town, Deputy Envoy Wang, I will tell you that you must measure the data that should be measured, so that you can return to Beijing to resume your life. In the past month, I have written to you nine times, but not once have you replied to me. When we arrived at Bishui County, we met, and you still didn't reply to me, only saying that you think this new canal can't be opened. Why can't I open it? At that time, I had already refuted your reasoning, but when I returned to Beijing, I came up with a new reason. The two things I mentioned earlier were still in what I had to do when we broke up. And the last item that has not been said yet, that is, the first unrepairable item you said, Deputy Envoy Wang, was assigned to your name at that time! ”

Wang Yan kept his face stiff, and he couldn't see the change in his expression, but said coldly to Xu Ping: "It is under my name, I have investigated, and I think that this new canal cannot be repaired." ”

"What about the numbers? I didn't tell you that whether you think you can fix it or not, you have to have a clear number to come up with. Do you convince others that you use numbers?! ”

Han Yi, who had not spoken, looked at Xu Ping and Wang Yan with a calm face, secretly thinking in his heart. Wang Yan made a mess of things, Xu Ping, as the envoy, is jointly and severally responsible, and the envoy doesn't just make you feel majestic. But if the matter can be reversed, it can be regarded as a crime, and it can be punished, but it seems that Yushitai should participate or participate.

Wang Yan looked at Xu Ping and couldn't help sneering: "Xu Beizhi, how much water is there in the river, what number do you want?" I can tell you how wide the river is and how deep the water is, but how much water flows, what do you count? ”

Xu Ping shook his head: "I didn't tell you when Zhongmu County left?" How wide the river is, how deep the water is, whether it flows fast or slow, after measuring it, can you calculate how much water flows? At that time, even Su Song, the youngest son of Su Shen of Zhongmu Zhi County, understood how to forget it, would you be a dignified minister of the court? ”

Wang Yan couldn't hold back any longer, and his voice was raised: "That Su Song is just a yellow-mouthed child, he doesn't understand everything, and you can only coax a child like him with that words!" According to your method, I found skilled craftsmen, and they all said that they could not make it anyway! I don't know how much face I lost in front of people for this! ”

"You can't do it, you won't tell me? I wrote nine letters, and you didn't reply to any of them, and I thought everything was going well with you! As a result, there is nothing until now! As for whether I can make it, let me tell you, don't say that I use it, this time when I came back, Su Shen also specially gave it to me that his son had made. Jinshui River, Cai River, Bianhe River, I took it and tried it, and the Huangkou children you said were made very well! ”

Zhao Zhen listened curiously, and couldn't help but interject and ask, "What is it?" Is it hard to do? ”

Xu Ping turned around and calmed his tone: "Back to Your Majesty, it is not difficult to measure the speed of the river." But it still takes a lot of work to make it. ”

"Oh-" Zhao Zhen nodded, Xu Ping's ability to do these strange things he knew, and there was indeed no one who could compare to him. It's normal to say that Xu Ping can't do it, but how can there be a child who does it?

Seeing Zhao Zhen looking at himself suspiciously, Lu Yijian said with a smile: "Your Majesty, Su Song is the eldest son of Su Shen of Zhongmu Zhi County, fifteen years old this year, a few days ago, he once held Xu Ping's handpiece and entered the Chongwen Academy to borrow a telescope to observe the sky. According to the people in the pavilion, this son was born with unparalleled intelligence, never forgetfulness, and is proficient in history, and has an unlimited future in the future. ”

This is Lu Yijian's ability, at such an age, big and small things, as long as they pass his eyes, they will be firmly remembered in his heart. Although Su Song had Xu Ping's handwriting, he still reported to the Zhongshu Gate when he entered the Chongwen Academy, and Lu Yijian read it by chance, so he wrote it down, and it really came in handy at this time.

Zhao Zhen nodded and didn't say anything more, just kept the name Su Song in his heart.

was interrupted by Zhao Zhen, and Xu Ping couldn't continue to ask about measuring the speed of the Luo River, so he had to put it aside for the time being. The water velocity measuring instrument that Xu Ping can make now is actually very primitive, which is nothing more than using the pulp blade to convert the linear velocity of the river water into the angular velocity of the pulp shaft, adding a simple set of speed reduction and escapement devices, and then reading it out. Because of this period of time studying clocks with Yan Su, Xu Ping is effortless to do, but it is not easy for others to do it.

The problem was that when they were separated, Xu Ping handed over the drawings of several slightly more precise parts used in this set of devices to Wang Yan. For fear of not being able to match, Xu Ping drew all the gears used on the 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 lacking in the implementation of standardization, and the processing methods and testing methods are insufficient, the parts in the workshop pushed by Xu Ping are like this. It is mainly controlled in the drawing stage, and the workers use a file to refine it according to the drawing, and then pick it with actual matching. Although the versatility is a little worse, and the accuracy is not high, at least the process can be run. Especially for gears that use complex curves such as involutes, the technical level of this era cannot be processed at all, let alone detected. However, drawing an involute on paper can still be approximated by geometric methods, and the accuracy of this approximation is sufficient. It's just that in this way, the requirements of the workers are lower, and the requirements of the technicians are higher.

I thought of this for Wang Yan, but I didn't expect him to mess things up, Xu Ping even wondered if Wang Yan didn't do it at all. I encountered such a strange thing this time, and I don't know how to fix it.

Xu Ping turned around and said in a loud voice: "It turns out that Deputy Envoy Wang did not measure the amount of water in the Luo River as originally agreed, but fortunately, after I arrived in Bishui County, I sent someone to measure it again." Originally, I thought that the comparison with the deputy envoy Wang would not be able to do it. Broadly speaking, the water coming from the upper reaches of the Luo River is sufficient for the newly opened canals, and it will not affect the topography of the lower reaches. One is that the terrain between the intake and the mouth of the Bianhe River is as flat as possible, so that the water flow rate in the new canal is as smooth as possible. Except for the water that was brought in when the river was newly opened, the amount of water needed was very small, because the water in the canal was basically immobile. Due to the wind and sun, it is still necessary to replenish a small amount of water, which is replenished from the Bishui River and the Pitang on both banks, not from the Luo River. Therefore, the problem of low water volume is not a problem. ”

"As for the construction of the Doumen sluice gate on the Luo River, it is because it is necessary to store the water during the flood season, and when there is a lot of water, it will be used as backup water together with the pitang dug on both sides of the canal as a backup water in case of dry water. Because although the water in the new canal does not move, the water in the Bianhe River will eventually flow down, and the water flowing out of the river still has to come from the new canal, and it is estimated that there will be a lot of water replenished every year until the riverbed of the Bianhe River adapts to the new flow rate. This water should not affect the original watercourse of the Luo River. ”

After Xu Ping finished speaking, he saw that everyone in the hall looked a little confused, knowing that the last paragraph was still a little unfamiliar to people in this era. In the physics of life, there are many people who study the science of life, but there are few people who study physics. Most of the limited ones have gone to study the I Ching gossip. (To be continued.) )