After chatting with Jiang Beiting and the other two standing on the river beach for a while, Chen Xu reminded Liu Po, Niu Dashi and others to carefully inspect the construction progress, and reminded everyone to pay attention to safety. Then he accompanied Jiang Beiting and the other three back to the primary school cafeteria to have tea.

Zhi County is located on the southern foot of Funiu Mountain. If the north and south of China are divided according to the Qinling Mountains, Zhi County is located in the southern part of China. Therefore, although it has just begun to spring and the weather is warm and cold, it is already fragrant with peaches, plums, flowers and plants, and the scenery in early spring is already very pleasant.

In the small college, two peach trees and a pear blossom were already blooming sporadically. The red and white pear flowers swayed gently in the wind, and the yard was filled with a faint fragrance.

Sitting under the pergola outside the cafeteria, two helpers brewed a pot of tea, and four of them chatted while enjoying the flowers.

"Nephew, what I told you last time will probably be postponed for a while!" Jiang Beiting suddenly said while drinking the hot tea.

Chen Xu put down his cup for no reason and asked, "What is the county magistrate talking about?"

"It's just that in March, I went to Wancheng County Magistrate's Office to serve as a government official!" Jiang Beiting said.

Chen Xu was stunned for a long time and asked in confusion: "Master Jiang, it's not that he wants to work in Wancheng, but that he is confused. Is something happening?"

Jiang Beiting nodded and said to Zhang Cang: "Brother Zhang, there is no one else at the moment, it's okay for me to say it?"

"Brother Jiang is just talking, but Chen Lidian must not spread the word when he knows it!" Zhang Cang nodded and said.

Chen Xu was very surprised. What was so mysterious.

"Nephew, news came from Xianyang that the Emperor would tour the southeastern counties in March, and it is very likely that we will come to Nanyang. Therefore, the county magistrate sealed all the promotion and allocation of officials. Therefore, the matter of asking you to go to the county magistrate's office to be a government official in March would have to be temporarily put on hold for a while, and only wait for His Majesty to make arrangements after the tour!"

"So that's it. Thank you for telling me!" Chen Xu bowed.

"The nephew doesn't seem to be surprised at all?" Jiang Beiting asked curiously.

Chen Xu curled his lips in his heart. Qin Shihuang's favorite thing was to travel the world. It took a total of ten years from the unification of the six kingdoms to his death. He had been parades six times, and he died on the way to the parade for the last time. Otherwise, Zhao Gao would not have supported Hu Hai to come to power and caused the Qin Dynasty to collapse.

"How many times is this your Majesty's parade?" Chen Xu asked Jiangbeiting.

"The second time, last spring, His Majesty traveled straight to Longxi to worship his ancestors. This is the second time this year!" Jiang Beiting said.

Chen Xu started to stare blankly with a teacup on his second tour. Qin Shihuang seemed to go to the beach on his second tour, and at the same time he also commemorated his extraordinary achievements. However, it seemed that the road was not peaceful. The robbers and bandits attacked him along the way. In fact, the resistance forces of the six countries wanted to kill him. In addition, the wind, waves, thunderstorms and storms were strong, so he could only sleep under big trees or even caves on the road. The situation was extremely difficult. The second tour was also the farthest time he had to travel to the southeastern counties for more than half a year.

Chen Xu recalled carefully because he couldn't remember whether it was the second or third time during the tour. He met Zhang Liang and a strong man secretly lie in Bolangsha and wanted to assassinate Qin Shihuang.

Although that time has not been successful in history, Chen Xu cannot guarantee that this time will not appear and will not succeed.

Because through several events, history is always surprisingly similar. Even if there are slight twists and turns, it is still tenaciously like a wrong DNA fragment and it will eventually grow into something roughly the same.

For example, Zhao Gao was originally dismissed from the position of CSKA because of Yu Wuya's assassination, but last time he heard that this bastard had become one of the Nine Lords again, and he still had a high position and a powerful position.

For example, although Chen Xu fooled Xu Fu and did not present a memorial to Qin Shihuang, there were still alchemists who reported this incident, indicating that the development of history did not change much with the weak power of a person.

According to this speculation, Zhang Liang's assassination of Qin Shihuang may not be successful, but who can tell clearly, what if the DNA of history suddenly collapses and breaks?

Therefore, this matter must be taken seriously, and plan carefully to see how to resolve Zhang Liang's assassination crisis in the most perfect way.

Several people chatted while drinking tea. Although Zhang Cang was a censor, he was indeed a math fan. He talked and talked and talked and talked, and it was rare for Chen Xu to meet an ancient man who was proficient in mathematics in this primitive era, especially for classical people who encountered various mathematical problems in life such as calculating areas, volumes, angles, squares, squares, and solving equations of various shapes.

Chen Xu's math is still a must. Not to mention the high-difficulty questions such as integral, at least I still remember the volume and area formulas of various shapes. Some simple geometric application formulas can also tell one, two, and three. It is not a big problem to solve some simple parabolic equations. Therefore, some mathematical problems Zhang Cang mentioned are not particularly difficult in Chen Xu's opinion. Once Zhang Cang said some example questions, he could almost give calculation methods and answers in every way. So after chatting, Zhang Cang immediately attracted Chen Xu as his confidant, neither drinking tea nor enjoying the scenery. He pulled Chen Xu to discuss the conversation more and more, and felt like he was forgetting to eat and sleep.

"Junior brother, are you here for an outing or studying arithmetic?" Feng Zian, who had a bad time with Chen Xu at the beginning, interrupted the two of them angrily.

"Not bad, Brother Zhang, today's spring is full of flowers and plants, don't study these bad things. It's just right for me to go out for a walk and enjoy the flowers!" Jiang Beiting was also dizzy and swelled by two guys who were muttering like little bees, and they felt a little bored when drinking tea.

However, Chen Xu is also a very disgraceful person. Zhang Cang's mathematical knowledge made him ecstatic. You should know that in the future, whether it is to study guns, cannons or steam engines, he needs extremely powerful mathematical knowledge. In Daqin, he had never seen any better mathematics. Niu Quan, the best mathematical mathematics in the town, was only able to add or subtract, and multiplication and division were not good, let alone square. Zhang Cang in front of him was a clear spring in the Daqin mathematical mudslide, which made Chen Xu find the direction. Such people must be used. If they want to cultivate a mathematical talent who is proficient in complex operations from scratch, they have been cultivated without more than ten years. Even simple multiplication and division to solve the equations of one and two, it will take seven or eight years. Later generations will only start to contact after junior high school, and complex mathematical and geometric problems will be learned in high school.

Without sufficient mathematical talents and strong computing power, all ideals that want to quickly promote the development of science and technology are just hooligans.

But Daqin didn't have that long time for him to be a hooligan.

In order to figure out how great Zhang Cang’s mathematical knowledge was, Chen Xu asked the chef to take out his pen, ink, paper and ink on the table, and began to draw various planes and three-dimensional figures to discuss with each other.

After the two of them talked about it, an hour passed. Jiang Beiting and Feng Zi'an couldn't help it. They forced Zhang Cang away. After the two of them continued to study, they probably all the flowers all over the mountains had faded.

"Chen Lidian, if you go to Xianyang the next day, you must go to my mansion to find me. When my Nine Chapters of Arithmetic is compiled, you will also ask you to check and correct the error..."

Zhang Cang, who was surrounded by Jiangbeiting, Feng Zi'an and several soldiers, couldn't help but turn around and shout loudly.

...

The papermaking workshop has never started work since Niu Xiaosi's death.

But recently, papermaking has started again.

However, what we made was not the ordinary hemp pulp paper from the past, but bamboo pulp paper.

The bamboo slices in the jar were soaked in wood ash water for a full four months. After coal was found behind, Chen Xu also asked the pottery workshop to use a small coal mine for burning porcelain to burn a kiln of lime with crushed bluestone. After three consecutive days, he made more than 100 kilograms of lime, so the back was soaked in lime water.

Niu Xiaosi is gone, and now Niu Kui has become the number one helper in the papermaking workshop. Although he is not as smart as Niu Xiaosi, he knows the methods and procedures of papermaking.

The soaked bamboo slices were placed in the stone pestle and tried hard to pestle. They repeatedly pestle thousands of times and turned into a ball of yellow bamboo pulp. This process lasted for a full week.

The main reason is that the bamboo is too hard, just the two steps of soaking and pulping require dozens of times more time and effort than hemp pulp paper.

The washed wood pulp is also put in water and boiled, then sifted into the pulp with bamboo, dried and lifted and hung in a sealed room made of earth bricks. Light charcoal and smoked for a few hours. After the smoke completely disappears, the paper that has been smoked into white is stacked together, tightly compacted with wooden boards and stones, and after a few days, they will be uncovered and dried one by one, and then obtained snow-white and flat bamboo pulp paper.

Fumigation and bleaching with sulfur dioxide is a common method for bad merchants in later generations. Various foods, nuts, tableware, Chinese medicine, and any method that can make the product look better, bad merchants will do everything they can. Bleaching and waxing are almost inevitable. Of course, there are also consumers who are fueling themselves, because they always feel that the whiter the food, the better, and the better it should be. In fact, otherwise, natural things don’t look very good, and the better it looks, the more poisonous it is.

This kind of bleached paper is the special paper used by Chen Xu to make deposit and withdrawal deposit slips from the bank. At that time, print the bank's famous deposit slip, fill in the date and number when used, stamp it with the seal and the signature and seal of the handler and the bank manager, and a deposit slip that is similar to that of the future generations will be completed.

A few months have passed, and Fan Yang's money house has almost been raised. While it's okay during this period, you can go to Wancheng to discuss with him to see when to open the money house, and also see what Hu Kuan has made his Qinghe Hotel look like.

After returning to the residence with a stack of white paper, Chen Xu took out a ruler and pen and ink to start designing. After finishing, he saw that it was almost the same, so he asked Wang Wu to take the sample to find carpenter Liu Erwa to make two carved pieces of the same size with the best and strongest wood.

"Wang San and Wang Si, you two go to the town to ask, and see which cows have laid the cows!" Chen Xu shouted to the people standing at the door of the room.

"Chen Lidian, what do you want to do?" Wang San asked curiously.

"Help me squeeze some milk back!" Chen Xu replied.

"Chen Lidian, do you want to drink milk? How can you drink milk? I just saw two young women in the past, with bulging breasts, and they must have had milk. Why don't I call them back and take a few sips to satisfy your craving..."

"Get out, I want milk!" Chen Xu burst into laughter and cryingly and smashed the stone used to press paper in his hand.

Not long after Wang San and Wang Si went, he heard the sound of a mooing cow coming from outside. Chen Xu came out and saw Wang San coming over with an old man, who was leading a big cow, and behind the big cow was a little calf who had just walked.

"Chen Lidian, I don't know how much you want to eat, so I asked my fellow villagers to bring the cows." Wang San shouted loudly as if he was offering treasures.

Chen Xu's face turned black in an instant.

The old man from Shanniu looked at Chen Xu's face and persuaded him nervously: "Mr. Lidian, there is nothing good to drink in milk, and it is not clean. My granddaughter gave birth to a baby last year and still had some milk, otherwise..."

"Stop!" Chen Xu couldn't help it.

Chen Xu regretted that he shouldn't have let Wang San and Wang Si get milk, and he didn't know how the two goods came to the town to promote it. It probably won't be long before the whole town knew that Lord Lidian wanted to drink milk when he was greedy, and there would be various versions of it, such as drinking while holding and squeezing or drinking with his head like a calf, with various rich postures.

The old man immediately felt so trembling that he didn't dare to speak. The people in the town seemed to have never seen Chen Xu so angry or angry.

"Why do you do while standing? Hurry up and help me squeeze some milk!" Chen Xu took out a pottery bowl from the room and handed it to the old man. The old man had to squat under the cow's stomach to milk.

"Enough is enough!" Seeing Chen Xu squeezed half a bowl of money, Chen Xu quickly stopped him, and then asked the old man to lead the cow and leave quickly, because at this time, there were already many people watching the fun standing outside the yard, pointing at Chen Xu and the cow, and a few young wives with bulging breasts gathered together and whispered and laughed. The eyes of Chen Xu were full of that charm.

My lifelong reputation has been completely destroyed.
Chapter completed!