Although he didn't believe it, Wu Guli never made things difficult for him. He called someone over: "Wang Lin, guard for me for a while, and I will lead this gentleman into the valley." Zhang Xiu cupped his hands and thanked him. Wu Guli hurriedly returned the gift: "How dare you be "The courtesy of the gentleman, if the gentleman is really good at arithmetic, he is the teacher of the school. When the time comes, I will give the courtesy of the disciple to the gentleman." "Ah?" "My husband said that we can also go." Listen to the class and learn some skills so that you can be independent in the future." Wu Guli said. Zhang Xiu glanced at him in surprise, and saw the Kunlun slave blinking his bull-like eyes and walking back, his eyes full of longing. " Let the servants learn arithmetic This Ye Langjun is indeed extraordinary. But it is said that he is also proficient in arithmetic. Why does he not teach his servants but hires another teacher? Zhang Xiu doesn't know. It's not that Ye Chang doesn't teach himself, but that he really can't spare the time. At home, he had to be busy with many things: planning, experimenting, writing stories, and dealing with various interpersonal relationships. He is not very capable and cannot take care of everything. Therefore, he needs several gentlemen in general mathematics to lay the foundation for his students. In terms of time, those nephews of the rangers will arrive in about ten days. Their accommodation has been arranged. They will live in the village first, and then they can move into Wolong Valley after the school is ready. After entering the valley, we saw the famous pavilion. The inscription "The Burrow" on it had been spread throughout the Central Plains for a long time, and Zhang Xiu could recite it by heart. After passing the pavilion, Wu Guli led him to the right, but Zhang Xiu said "Hey" and ran to the left. "That's the waterwheel" Wu Guli called from behind: "Lang Jun, you can't go there." "Just look at the waterwheel." Zhang Xiu was stubborn. He stood by the waterwheel, looking at this thing made of many wooden and iron parts, and his heart moved. It¡¯s not that there were no waterwheels in the Tang Dynasty, but this waterwheel made Zhang Xiu feel that something was wrong. Soon, he realized something was wrong. "So that's it." Zhang Xiu's eyes flashed with light of realization, and at the same time he was filled with surprise: "Wuguli, this waterwheel was built by your husband?" "My husband designed it and hired famous craftsmen. Made." Wu Guli was a little unhappy. The person in front of him who claimed to be an applicant was a little rude and barged in without the owner's permission. But he can be said to be sneaky. It seems that he is really curious about this waterwheel. Zhang Xiu clenched his fist and said with some excitement: "Sure enough, sure enough, I expected it to be right. After Uncle Clan and Duke Liang, the only one in the world who can give me advice is Ye Langjun. ""Please come here, Mr. Lang." "Wugu urged. "Follow Wu Gubian and turn to the right. Not long after walking, I saw a piece of slope land being leveled off. Some places were raised, and some places were flattened. It looked like it was going to be two acres of land. One piece. Dozens of craftsmen are building the house under the command of the craftsmen. In addition to the blue bricks and red tiles, the cement used is Ye Chang, which is already common in Chang'an but is still rare in other places. Zhang Xiu was not surprised that Ye Chang used the invention here. However, he did not know that cement was now a monopoly of the imperial court and that Wolong Valley could use it because the imperial court had set up a cement kiln in Jiaozuo and originally wanted Ye Chang to be the ambassador. Although Ye Chang declined, he still made many suggestions for the cement kiln, including site selection and process design. He played an important role. Now he wants to use cement. He bought some new ones from the cement kiln, which is not too big. What interests Zhang Xiu is how the craftsmen on the roof transport the baskets of bricks and cement not by simply carrying them manually, but by using a winch - a pulley. The winch allows the craftsmen to lift hundreds of kilograms of things up the stairs very easily. Others may be just surprised, but Zhang Xiu is an expert. When he saw the pulley, he was surprised and said: "Could it be that Ye Langjun is from the Mo family. successor? " After he finished speaking, he burst out laughing and shook his head: This is absolutely impossible. The Mohist family during the Warring States Period has long been eliminated by history. Even if there are some surviving biographies, they are only among craftsmen. Ye Chang, Poetry How could he be a member of the Mohist family who is famous all over the world? Besides, people of the Mohist family have always been frugal and self-obsessed and unwilling to break the rules. They are so-called sticklers. I heard that this Ye Langjun is very luxurious and loves to have fun. There is nothing wrong with that. Like the Mo family. However, this discovery made Zhang Xiu look forward to meeting Ye Chang even more: perhaps only such a knowledgeable person can solve the countless doubts in his heart. "This is the school, my home." The owner used moso bamboo as the sinews, masonry as the muscles, and cement lime as the skin. After it was built, it could accommodate more than ten gentlemen and more than a hundred disciples. Seeing him stop, Wu Guli explained: "Don't look at it now. My master said that when it is completed, even the Guozi Temple will not be able to compare with it." Zhang Xiu nodded, not feeling that Ye Chang is bragging.Of course it¡¯s not that there are no talents in Guozi Temple, but when it comes to arithmetic, I¡¯m afraid those students can¡¯t compare to Zhang Xiu. He has to come here to ask Ye Chang for advice. Those students Wu Guli led him to move forward. Beyond that, there is Ye Chang's house. Since Ye Chang started building projects in Wolong Valley, he has almost never stopped. His house, after two expansions, has now begun to take shape. But because there was no cement at that time, his house was still built with traditional materials. According to his preference, the exterior walls were painted white with lime. Looking from a distance, the courtyard wall as white as snow is hidden among a piece of golden leaves, which is very refreshing and pleasant. Zhang Xiu couldn't help but take a breath, and the scent of maple leaves seemed to be on his nose. There are many wild maple trees in Wolong Valley, and Ye Chang pays attention to protecting them. In autumn, these maple trees begin to turn yellow, and after a while, you can see the fiery red leaves. But Zhang Xiu then realized that the fragrance did not belong to maple leaves, but to the fragrance of osmanthus. Ye Chang moved a few osmanthus trees to the side of his house. Unexpectedly, the flowers would bloom this year. The fragrance was fragrant. It was only faint in the distance, but when you got closer, it was refreshing. Just under the osmanthus tree, a shirtless monk, with his chest hair exposed, laughed and beat a group of teenagers with a stick. The group of teenagers were driven in all directions by him, but they could not get out of the lime-white circle on the ground, so they had to be beaten several times in embarrassment. Zhang Xiu was not interested in this. He was just vaguely surprised: the atmosphere in Ye Chang's villa was supposed to be very quiet, but this group of noisy monks and teenagers was really incompatible with the atmosphere here. "Mr. Lang is here. Please wait here for a moment until someone comes to inform you - the guest's surname is Zhang Xiu. Does he have a given name?" "Zicai is from Julu." Zhang Xiu has no name. As a result, he can only be named by Wu Guli. He saw the Kunlun slave trotting towards the courtyard wall and arriving under one of the sweet-scented osmanthus trees. There were several men sitting under the sweet-scented osmanthus tree. Kunlun slave saluted one of them, who had his back turned to this side. The man turned around in surprise. After Zhang Xiu saw it, he couldn't help but be surprised: "He looks familiar" Ye Chang also felt that this man looked familiar, but for a moment Can not remember. After he stood up, Jia Maoer and others next to him also followed him. These Chang'an rangers were certainly not as skilled as Shi Shanzhi, so the monk gave up training those young men and followed him. A dozen people came over at once, making Zhang Xiu feel great pressure. "Your distinguished guest is Mr. Zhang from Julu, who is here to apply for the position of arithmetic teacher?" Ye Chang asked. "This is Zhang Zicai." Zhang Xiu saluted: "I am applying for the position of Mr. Mathematics - and I have some questions to ask Ye Langjun." "Question?" "Has Ye Langjun ever seen a water-borne armillary sphere?" "Huh?" Ye Chang I was startled when I heard "water-borne armillary sphere". The name of this thing is also very familiar. It should be an astronomical instrument. Zhang Xiu didn't wait for his response, so he thought to himself: "I saw the waterwheel that Mr. Ye made in the valley. The wonderful operation of the machine is quite similar to the water-driven armillary sphere. But this kind of machine has a big problem. Ironware in the joints is easily corroded by water, and then it can no longer be used. For this reason, the armillary sphere must be stored in the treasury" He talked to himself, as if he was immersed in his own world, Jia Mao Er frowned: This guy is so rude. When Zhang Xiu said this, he changed the topic and asked: "Did Ye Langjun ever get the Mohist suicide note?" This question made Ye Chang even more unable to answer. He was stunned: "The Mohist suicide note?" "Mo Zhai ever got it?" The word "pull" means that it is powerful, and it also means that it is weak. If the pull is not correct, it will be pulled out. If it is pulled out with a cone, the long and heavy ones will go down, and the short and light ones will come out. He said what he said. Suddenly I felt dizzy, what the hell is "pu"? How could this guy "pull" out a lot of nonsense? Ye Changqing was proficient in classical Chinese, otherwise he wouldn't be able to thrive in this era, but Tong Being good at classical Chinese and being good at it are two different things, not to mention that the classical Chinese quoted by Zhang Xiu was very unpopular. However, Zhang Xiu kept talking about this matter. After a while, he ended the quotation and then said: "I When he visited the school, Ye Langjun taught the craftsmen how to pull out heavy loads. This passage in the original Mo Jing suddenly made him feel cheerful. The Mo Jing only has its text, but not its pictures. Ye Langjun must have obtained Mo Zhai's suicide note before he could make this thing" "Wait a minute, wait a minute, I will make the waterwheel, and that important thing. It is not the same as the water-moving armillary sphere or Mozi. It is me I did it by summarizing the experience of my predecessors. "Ye Chang finally found an opportunity and interrupted this person. "Is that really the case? "Zhang Xiu looked shocked. "Sure enough" "Sure enough Ye Langjun is indeed an uncle and a figure like Liang Gong" Zhang Xiu was talking to himself again. Seeing that he was immersed in his own world again, Ye Chang ignored the rudeness and patted his shoulder: "Your Excellency said that he wanted to come to ask questions, but it is not these questions. "Of course not. Someone asked me in Chang'an City why the sky lantern can rise into the sky and then fall when the fire is gone." I patted my head and remembered this person. This person was the somewhat silly guy he met on the street with Chong Niang on the day of the market competition. At that time, this guy was talking to himself, asking himself why the Kongming Lantern could go up to the sky. Ye Chang answered casually, but he had several questions in succession. Chong Niang thought he was annoying, so she pulled Ye Chang away, but she never thought that in order to pursue these questions, this guy actually ran hundreds of miles and chased Xiu Wu. "I met you in Chang'an," Ye Chang said. Zhang Xiu looked Ye Chang up and down and nodded: "I also think Ye Langjun looks familiar." But he doesn't have Ye Chang's memory for people, or in other words, he can't remember people at all, unless he is a very familiar person. "Don't ask me first, I have a question for you." Ye Chang was holding a folding fan in his hand. He shook it: "You keep talking about Uncle Ling and Duke Liang, but I don't know who these two people are. "Really?" "My uncle, Zen Master Dahui, Liang Gongba Lingzhan, is my uncle's friend." "Zen Master Dahui" Ye Chang has never heard of this name. He must be an unknown person in history, another Liang Lingzhan. Some impression, but not deep. After thinking about it for a while, he felt that neither of them were important people, so he asked again: "Are you two elders good at mechanics?" "These two elders are unique in the world in mechanics, but they are more advanced. Good at astronomical phenomena and calendars." This made Jia Maoer next to him unconvinced. During these days, they lived in Wolong Valley. On the one hand, they were living in leisure for a while, waiting for several plans proposed by Ye Chang to mature. On the other hand, they were also getting closer to each other. In order to convince them more, Ye Chang took them to see several machines. Therefore, in the minds of Jia Maoer and others, Ye Chang was comparable to Lu Ban, the founder of carpenters. A guy who came from nowhere. , a monk and a man named Liang dared to say in front of Ye Chang that machinery is the only one in the world. "That is because Ye Langjun has not come out of the mountain. If Ye Langjun comes out, they will not be alone. If you are not convinced, let them come to see you." Seeing Ye Langjun¡¯s whimsical thoughts ¡°Both of them have passed away, so I can no longer see Ye Langjun¡¯s wonderful skills. If they could see Ye Langjun's miraculous skills, they would definitely feel like confidants" "You like arithmetic? Seeing that this person was immersed in his own world again, Ye Chang hurriedly asked to interrupt: "A certain question is asked, can you solve it?" " This man claimed to be here to apply for a position as a math teacher. Although he also admitted that he was just saying this to meet Ye Chang, Ye Chang didn't have anyone suitable for him anyway, so he wanted to see him because he was idle. Is it true? In fact, Ye Chang doesn't have high hopes for this person. It can be seen that even if this person is good at mathematics, he is not good at teaching. He may be a research-oriented talent, but not a professor-type talent. "If If you can figure it out, Ye Langjun is willing to help someone solve the puzzle. " " Tell me everything you know, just listen to the question. "Ye Chang came up with a question about a chicken and a rabbit in the same cage. This question is not too difficult, but if you are just an ordinary person, it is difficult to solve it. Jia Maoer next to him started counting with his fingers, and Zhang Xiu over there was just After hesitating for a while, he reported the correct answer. This person really knew some math, and could at least help him in the early stages. Ye Chang was secretly happy, and asked the second question in succession. The principle of difficulty, the second question is about filling and releasing water. This kind of question about filling and releasing water into a pool once tortured Ye Chang to death when he was in elementary school. Today, when he took it to test, he felt quite happy.