The next morning, Chen Xu accompanied Shui Qingrou into the city again.

Shui Qingrou went to the palace to invite the fifth princess to play outside the city, while Chen Xu went to work at the Academy of Sciences.

It has been almost ten days since I came here. Everything in the Academy of Sciences looks like the same thing. All departments are still like the same. There are people who read books, newspapers, chess and tea. Most of them are idle and have a lot of fun, but there are still several departments, especially in the conference room, where many craftsmen and craftsmen gathered, listening to Zhang Cang’s math class.

In the past, Zhang Cang specially compiled Jiuzhe Arithmetic and did not participate in the affairs of the Academy of Sciences. However, after the math monograph was compiled some time ago, and after Chen Xu's theory and practice were followed by Chen Xu's theory and practice, the Academy of Sciences has developed great interest in tap water recently, especially in the water tower and faucet, which are just crazy.

When the faucet was turned on, water flowed out. Such a crazy idea was actually thought of by the Marquis, and it was successfully made. Everyone was also participants and makers, which made many people feel like they were dreaming.

These days, under the leadership of Zhang Cang, the Academy of Sciences has gathered craftsmen and craftsmen who participated in the installation and design of tap water to formulate a standardized construction plan for a complete set of tap water systems. Very strict standards have been formulated from the height, size, thickness of water pipes, drainage measures, faucet style and thickness of interfaces.

The installation and design of the tap water system also made many craftsmen feel that their mathematical knowledge is not enough, so Zhang Cang used his mathematical strengths to give these people a math class every day recently.

Seeing that the Marquis who had not been here for a long time came to work, the Academy of Sciences went to the supervisor Zhao Qing and the helpers all came to greet Chen Xu. Chen Xu also greeted him all the way to the conference room, standing outside the back door and listening to Zhang Cang finish a class.

"Greetings to the Marquis!"

"The Marquis is here!"

After class, a group of craftsmen and Zhang Cang who were attending the class gathered around to salute Chen Xu.

"Haha, it seems that everyone is very active. This is a good thing. As the saying goes, you will regret that you are not good at studying until you use it. It is very necessary to learn mathematics well. Thank you for your hard work, President Zhang!" Chen Xu greeted a group of people with a smile.

"Mr. Marquis, we all want to install tap water in the Academy of Sciences. What do you think?" After the greetings, people couldn't wait to ask.

"Of course, I can help solve the materials, but you have to renovate and design yourself. There is also a problem with water sources. The Academy of Sciences has no canal, only a well, and it is still on the street outside the door..."

"Oh~" Chen Xu said this, and many people shook their heads with frown.

The most important and core part of tap water is the water source and water tower. Now with steel and cement, the water tower can be easily repaired, but there is no way to solve the water source.

Although Xianyang City is close to the Wei River, there are only two canals in the city, one leading to the palace to solve the drinking water problem in the palace. The management is very strict. The Neishifu and Shaofu arrange patrols every day, and there is also a canal leading to the small lake in Zongshan Villa, which ordinary people cannot use. Therefore, millions of people in the city mainly rely on wells for drinking every day. Or they go out of the city to carry water. Almost all the wealthy families in the city have dug water wells. Otherwise, just carrying water will cause half of the servants to be exhausted. But even so, guarding a river with turbulent waves and long flowing seasons, the people in Xianyang still feel that water is short of water, mainly because it is too inconvenient to get water.

Seeing a group of people sighing depressedly, Chen Xu waved his hand and said, "You are the most powerful craftsmen in my Daqin. My purpose of preparing for the Academy of Sciences is to hope that everyone can use their expertise to create various items that can solve the practical problems of people's lives. Xianyang is not short of water now, but if you want to let the water outside the river flow to every household through the pipeline, this is a very large project. I hope everyone can think about how to lead the river to Xianyang City, even the canals. If several crisscrossing canals can be built in the city, every day there will be a rush of rivers into the city, and the residents in the city can also conveniently get water, drinking, washing and cooking, and many people don't have to fetch water from outside the city every day!"

"Is it like the canal in the Marquis's other courtyard?" Zhang Cang's eyes lit up.

"It's almost the same, but if we want to meet the water use of the entire Xianyang City, it is not built like this. We need to find a place with a narrow terrain and a large drop to build a dam dozens of miles away to cut off the river to form a reservoir, and then lure the water from the reservoir to Xianyang through ditches or water pipes. If the drop reaches the height of the water tower, tap water can also be installed in every household..."

"Cut off the Wei River?" Chen Xu's words scared everyone, and they looked at Chen Xu like a terrifying monster.

"Haha, is it difficult? Nowadays, there is steel and cement. Just build a large embankment in the right place. But... well... it is indeed difficult, but it is not impossible to complete. It's just that we do not have such strong industrial capabilities and construction experience. In order to supply water to Xianyang, it is not necessary to cut off the Wei River. Instead, we can consider a tributary of the Jing River, such as the Jing River or even a tributary of the Jing River, and find a place with narrow river channels and high terrain on both sides to build a dam to block the river water, and then a large lake will be formed..."

"The Marquis's plan must be effective. The canal leading to the palace is introduced into the city through a ditches from a small river northwest outside the city. In order to prevent the cold winter water from being exhausted and there is no water available, there is also a dam block. However, the water volume cannot meet the water needs of the entire Xianyang population. If the Marquis' plan can be completed, the millions of people in Xianyang City may really be able to use tap water!"

The craftsmen of the Academy of Sciences are definitely first-class craftsmen in Xianyang and even the entire Daqin. Many of them are proficient in water conservancy. The Qin Dynasty originally attached great importance to agricultural development. The canals built by Qin Shihuang alone were built. The most famous ones are Zheng Guo Canal, Bai Canal, and the Ling Canal in history. There was a more awesome Dujiangyan irrigation water conservancy project. Li Bing and his son took advantage of the situation to irrigate most of the Chengdu Plain with the water from the Minjiang River, tamed the flood and built Shu into a huge granary. Whether it is Zheng Guo Canal, Ling Canal or Dujiangyan, it is still used more than two thousand years later. Even earlier, the twelve canals of Zhangshui built by Ximen Bao irrigated a large number of farmland in Henan, making Nanyang a highly developed area of ​​agriculture. In other words, during the Spring and Autumn Period and the Warring States Period, China's use of water conservancy in agriculture had formed a very mature system and practical theory.

After Chen Xu finished speaking, a large group of craftsmen and craftsmen who were familiar with water conservancy began to discuss the feasibility plan of Chen Xu. Finally, they nodded to show that the Marquis' idea could be implemented, and they all demanded to be the supervisor to design this tap water project that would inevitably be famous in history.

"Okay, okay, there's no hurry to do this now. I'll have another more important task to you today!" Chen Xu walked to the podium in the conference room, and Zhang Cang and a group of craftsmen and officials also quickly found a place to do it.

When people from other departments of the Academy of Sciences heard that the Marquis was going to teach, they flocked to them and quickly filled the entire conference room with many people standing behind or outside the door.

Seeing everyone's serious and serious look on their faces, Chen Xu felt very satisfied and sorted out his thoughts and said, "Our Academy of Sciences has been constructed for eight months. In cooperation with the experimental factories outside the city, many useful things have been developed, such as steel, glass, cement, and movable type printing, etc., but these things are the basis for development. Now we have successfully studied cement, steel and glass, but how can we apply it to practice to solve specific things is the problem that everyone should care about and think about."

"This time I installed the tap water system in a courtyard outside the city, and handed over this task to Dean Zhang and you all. Everyone worked hard and completed it perfectly. I am very grateful to everyone. Recently, everyone has summarized and improved the construction method of the tap water system. This is a very good model project that combines theory with practice. At least through this project, everyone has understood the working principle of water pressure, the characteristics of cement, the coordinated application of steel and cement, and the overall arrangement of water supply and drainage, etc., and everyone is measuring and designing.

, engineering drawing and other aspects have also gained a lot of valuable experience. Therefore, this tap water system is an appetizing experimental dish for everyone. However, as the Royal Academy of Sciences and the most valued office of His Majesty, we must learn and use it. To lead the rapid development of the entire Daqin industry and agriculture, we must take a longer vision and take greater steps, give full play to the advantages of our Academy of Sciences, apply all the newly researched things to the lives of the people of Daqin, and solve the bottleneck problem of the development of Daqin..."

Chen Xu said that his eyes swept across the entire conference room, and everyone was moved when they heard it, and they all grew big and their mouths were silent.

"Everyone knows the characteristics of cement. I would like to ask you, what functions do you think cement has? In what fields can it be used?"

"My Marquis, the awesome effect of cement turning mud into stone can be applied to all areas where mud and stone is needed, such as houses, embankments, ditches, towers, bridges, ground..." A young craftsman stood up and began to answer with his fingers.

"Yes, cement is as hard as hard rock after solidification, and can be shaped into any desired shape, with all excellent characteristics that ordinary wood and stones such as bonding, hardening, waterproofing, and fireproofing. Therefore, the emergence of cement will definitely completely change the structure and construction method of the building. We can use cement to build a four-meter-high water tower, and then we can easily build a four-meter-high building of four-meter-high or even more than ten meters high. If we are more bold, we will study stronger steel bars and higher strength cement, and it is not impossible to build a hundred-meter-high building in the future..."

"Wow~" There was a sudden violent commotion in the classroom.

"Hao...Hao...Hao, a hundred feet tall building, isn't it...hasn't it towering into the clouds?" A craftsman who was closest to the podium stood up and stammered.
Chapter completed!