Han Qian hurried back to Furong Garden before dark. There were two old men in ge robes sitting neatly in the yard, their faces wrinkled like dry tree bark. He followed Ji Fu back after them.
"These are two craftsmen from the state capital. Mr. Fan said that the young master had something to say and asked me to bring them over and wait." Ji Fu said, leaning forward.
Ji Fu is a smart man. After arriving in Xuzhou, he followed Fan Xicheng. Most likely he was thinking that through Fan Xicheng, he could make a fortune in Xuzhou. On the contrary, he felt that his son was following the young master Han Qian and trying to get close to him. It was wishful thinking.
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Even though Ji Fu was a master craftsman in the government-run shipbuilding yard of Chaozhou in his early years, he was a craftsman who had a separate household registration and was not allowed to enter the officialdom for generations.
"What did Fan Xicheng say I asked you to do?" Han Qian asked in confusion.
Ji Fu and the two old men were both stunned.
Fan Xicheng told them that the young master had something to ask for, but they didn't dare to ask more questions. Who knew that the young master didn't remember anything at all.
"What will you do?" Han Qian asked the two old men in Ge Yi.
The two of them were dumb for a long time, neither of them uttering a smooth word. Ji Fu answered on his behalf: "They are craftsmen from the Prefecture Institute of Technology who specialize in making copper and ironware. Maybe Mr. Fan made a mistake. I am here."
Just lead them out."
"Oh, I really want to use them. Let's stay and have dinner together. Let's talk about things after dinner." Han Qian then realized that his father wanted to keep an eye on him in Xuzhou and build the goniometer first.
It is not like being on a ship that is constantly bumping. A land-based goniometer is very simple. What is more difficult is to use the calculation method of equal arc divisions in the "Zhou Bi Suan Jing" when marking the scale; otherwise, it cannot be guaranteed.
The scale is accurate enough.
When estimating the height of a mountain peak, there is an error of more than ten or even tens of meters, which is not a problem. But if his father used this method to infer the relative elevation of the surrounding terrain in order to dig canals in the hilly areas of Xuzhou, the error would be
If it is slightly larger, the dug canal will be destroyed directly and the water will not be able to pass through it.
In addition, Han Qian saw that his father also saw information on building terraces on his way to Xuzhou, and he would probably think of encouraging the construction of terraces in Xuzhou.
Traditional terraces are mostly dry land; to build paddy fields, ponds must be built on the hillside to store rainwater. At the same time, the height difference between terraces on the same layer must be kept at an extremely low value, otherwise the terraces cannot store water.
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Xuzhou has abundant rainfall, and the yield of paddy fields is much higher than that of dry fields. However, purely through visual inspection and repeated attempts, it is unknown how much manpower and material resources will be wasted in order to cultivate a terraced field straight.
If you can really use a goniometer to identify a circle of points of equal elevation on the hillside, and then reclaim the terraces along the points of equal elevation, you don't know how much work will be saved.
Such a seemingly simple thing was of great use in the complex terrain of Xuzhou. It's no wonder that his father was so eager to get it done, for fear that he would forget it.
Of course, it seemed like a very simple thing to Han Qian, but it was not easy to really calm down and think about how to do it.
For example, the platform base of the goniometer must be able to be adjusted accurately and minutely in the field to ensure that the platform surface is just right; and the level test of the platform surface would be too rough if it still only reaches the level of depicting a cross flume.
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Han Qian thought that bubbles would always float at the highest point of the liquid surface, so he thought about using glass or crystal with good permeability to seal a small bubble in the cross water tank, and then use the specific position of the bubble to check the level.
, should be more accurate.
The base surface of this goniometer needs to be made straight enough, which is definitely not possible by traditional casting. It will still need to be ground by experienced craftsmen in the later stage.
After these are made, the trigonometric function values corresponding to the angles need to be calculated and tabulated to facilitate actual users to find the values and calculate the elevation difference.
Naturally, Han Qian would not teach the craftsmen in the state how to make a goniometer step by step. At the moment, he just explained his idea to the two old craftsmen in detail, and then drew a relatively simple schematic diagram for them to
They followed the gourd's lead and went ahead to make it.
Han Qian thought that waiting for them to create a real prototype first, and then adjusting it bit by bit, might be more convenient than him directly designing drawings that are accurate to the nearest millimetre, and letting them create things according to the drawings.
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After nightfall, when he saw his father coming back from the former Yamen and inviting Xue Ruogu, Li Tang and Qin Wen to drink in Furong Garden, Han Qian ran over to keep him company.
In front of Xue Ruogu, Li Tang, and Qin Wen, Han Qian made it clear that he would use various means to encourage the people from Jinghu and Xiangtan to flow into Xuzhou, and would also invite Xue Ruogu and Li Tang when the time came.
, Qin asked the three of them for convenience.
The three of them, Xue Ruogu, were all shocked, but they were speechless when they thought that this might be the third prince's way of treating Xuzhou as their own territory.
Although Xue Ruogu and the other three stood firmly on the side of their father and son on the night of the state prison's roar, Han Qian always suspected that some of them had close ties to Tanzhou.
If any of the three Xue Ruogu people were close to Tanzhou and were unable to deal with the dangerous situation in the state prison that night, then under the circumstances at that time, standing with him and his son would be the most normal choice and could eliminate the problem.
Weaken your guard here.
However, after a meal of wine, Han Qian could not see anything unusual in Xue Ruogu and the others.
Watching Xue Ruogu and the others leave, Han Daoxun drank the fragrant tea brewed by Qingyun and said to Han Qian: "Not everyone is as untrustworthy as you think."
"If father hadn't suspected that there might be something wrong with the three of them, if he hadn't already observed it, how would he know what the child was suspecting?" Han Qian took the teacup from Qingyun and asked with a smile.
Han Daoxun smiled bitterly and asked: "You are so serious, why don't you hide it?"
"Of course we have to cover it up. Mr. Xue and the others can't go to the Fourth Surname to make trouble," Han Qian said with a smile, "I just have a headache now. How can this news be spread to Tanzhou's ears as soon as possible?"
!”
"Oh?" Han Daoxun looked over doubtfully.
"The boy said at noon that he wanted to lure the refugees to gather in Xuzhou. My father didn't do much to dissuade him. He must have seen that there was a problem that the boy couldn't solve, right?" Han Qian asked with a smile.
"What's the problem?" Han Daoxun did not answer directly, but continued to ask.
"Father must be thinking about what he needs to do to remove this stumbling block from Tanzhou, right?" Han Qian said directly, "I had a headache before, but now I suddenly understand how to solve this problem. Father, you
You must have thought that the child was going to suggest luring the wolf into the house, right?"
Fan Xicheng, who was drinking tea next to him, was also surprised when he heard the young master Han Qian mention the word "lead the wolf into the house".
Zhao Kuo is currently staying in the state prison to clean up the jailers. Han Laoshan has limited knowledge and is mainly responsible for managing the internal affairs of Furong Garden. Apart from Han Qian, Fan Xicheng is actually Han Daoxun's main assistant in Xuzhou, and Fan Xicheng follows him in everything.
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Fan Xicheng also knew how complicated the situation in Xuzhou was these days, but he did not expect that the young master would suggest leading a wolf into the house. He looked at Han Daoxun in confusion, not knowing what the family master would decide.
Han Daoxun smiled bitterly at Han Qian and said, "Well, you suspect that there is a problem with any of the three people in Xue Guruo, and you talk about your plan to lure refugees into Chenxu and other places. No matter you hope that Tanzhou will take it seriously after knowing about it.
It’s just a good opportunity to infiltrate the states in southern Hunan, so what’s so hard to guess?”
"Haha, they say a child is better than his father. I really want to stick my ass out. Dad, you know what shit I am going to do!" Han Qian said with a smile.
"What kind of bastard metaphor are you talking about?" Han Daoxun said with a helpless smile.
"Even if Tanzhou intends to infiltrate power into the southern Hunan states, whether it is bribed or wooed, it is far inferior to directly sending tens of thousands of people who are close to Tanzhou or directly controlled by Tanzhou into the Chenxu Shaoheng states.
It’s more effective to take root,”
Han Qian had already thought through the front and back joints at this time, and he felt extremely comfortable and said,
"In recent years, the situation in Xiangtan has been relatively stable. For no special reason, the guest people who previously moved south from Xiangtan have even begun to return to the shores of Dongting Lake, not to mention a large number of people from Xiangtan moving south. If we will lure the refugees
The news of entering Syria reached the ears of Tanzhou immediately. Isn't it a good opportunity for them to secretly expand into the Chenxu and Shaoheng states? However, there is a prerequisite for this, that is, father, you must first allow the refugees to
Xuzhou can organize the reclamation of wasteland and fertile land on its own. Only in this way can Tanzhou see that the troops they sent over will be able to gain a foothold directly through reclamation and continue to gather together to form a force that is secretly and directly controlled by them.
And the reclamation work that you want to do, father, can actually be completed by Tanzhou on your behalf!"
"Alas," Han Daoxun said, "you also know that you are 'leading the wolf into the house', which will only make the situation in Xuzhou more complicated."
"Tanzhou is a wolf, and the four surnames are local snakes. The only way is to let them bite each other in Xuzhou. The situation may seem complicated, but it can really reduce the pressure on my father's shoulders,"
Han Qian said,
"I left the city this afternoon and went upstream to the Zhijiang River. I saw a lot of shallow silt land that could be reclaimed on both sides of the Yuan River. I guessed that Mr. Wang Yu also intended to reclaim the shallow silt land on a large scale to make the four surnames or Tanzhou fearful, so he was poisoned.
Right? I'm thinking, father, if you really want to organize people to reclaim the shallow silt land on both sides of the Yuan River in the name of the state capital, the four surnames will oppose you, and Tanzhou will never sit back and watch you use this matter to form your own state in Xuzhou.
- Father, you don’t mean this, but you can’t deny that building water conservancy projects and carrying out large-scale reclamation will allow your influence to penetrate deeply into the traffickers. And the land for reclamation must also be listed according to the law.
When you enter the official field, your father is the governor. If during his term of office he works hard to increase the official and professional fields of the state capital by tens of thousands or hundreds of thousands of acres, Tanzhou will not believe it no matter how much you say that you have no deviant ambitions.
Father, if you let the people from Tanzhou come in, then rumors will fly all over the sky, and the four surnames will only think that these rumors that lure the refugees in are spread by Tanzhou in secret and have nothing to do with you and me, father and son."
"Tanzhou will definitely fall into your trap?" Han Daoxun asked.
"Tanzhou does not regard forces like the Four Surnames as powerful opponents, so for them, there is no such thing as falling into the trap. And they really think that our father and son can have any practical effect on Tanzhou.
To threaten, we should seize this opportunity to send troops to infiltrate," Han Qian said with a smile, "If there is no one around my father to spread the news to Tanzhou, I will make a detour to Tanzhou when I return to Jinling.
I will personally sell this plan to the Ma family."
Han Daoxun felt a dull pain in the back of his head. Although he seemed to be safer in Xuzhou in the future, the situation was so complicated and chaotic for Han Qian. At this time, he had no confidence that he could control the situation in Xuzhou and prevent it from happening.