After accompanying the three of Jiangbei Pavilion to stand on the river beach and chat for a while, Chen Xu told Liu Po and Niu Dashi and others to carefully inspect the construction progress, and at the same time remind everyone to pay attention to safety, and then accompanied the three of Jiangbei Pavilion back to the primary school cafeteria to drink tea.

Pheasant County is at the southern foot of Funiu Mountain, if you divide the north and south of China according to the Qinling Mountains, Pheasant County is even in the south of China, so although it has just entered spring, the weather is warm and cold, but it is already the peach and plum fragrant flowers and plants Turui, and the scenery of early spring is already very pleasant.

Two peach trees and a pear blossom in the small courtyard have been in full bloom sporadically, and the peach-red and pear-white flowers are gently swaying in the wind, and the courtyard is filled with a faint fragrance.

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

"Virtuous nephew, I'm afraid what I told you last time will have to be postponed for a while!" Drinking hot tea, Jiang Beiting suddenly said.

Chen Xu put down the cup inexplicably and asked, "What did the county magistrate say?" ”

"It's about going to Wancheng County to serve as a government official in March!" Jiang Beiting said.

Chen Xu was stunned for a long time and asked suspiciously: "Lord Jiang, it's not that Xu wants to go to Wancheng to serve, but he has doubts, 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, right?" ”

"Brother Jiang's words are fine, but Chen Lidian must not spread the word after he knows about it!" Zhang Cang nodded and said.

Chen Xu was very strange, what was so mysterious.

"Virtuous nephew, there is news from Xianyang that His Majesty the Emperor is going to tour the southeastern counties in March, and it is very likely that he will come to our Nanyang, so the county guard will seal all the promotion and deployment of officials, so the matter that was originally planned to let you go to the county guard mansion to be a government official in March needs to be put on hold for a while, and only wait for His Majesty to make arrangements after the parade!"

"I see, thank you for telling me the county commander!" Chen Xu gave up.

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

Chen Xu pouted in his heart, Qin Shi Huang's favorite thing to do was to tour the world, from the unification of the six countries to his death for a total of ten years, of which he paraded six times, and the last time he died on the way to the parade, otherwise there would not have been Zhao Gao to support Hu Hai to come to power and cause the collapse of Great Qin.

"How many times has Your Majesty been on a parade?" Chen Xu asked Jiangbei Pavilion.

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

Chen Xu began to be in a daze with a teacup, Qin Shi Huang's second tour seemed to go to the seaside, and at the same time he also sealed Mount Tai Leshi to commemorate his immortal exploits, but that time it seemed that the road was not very peaceful, robbers and bandits raided along the way, in fact, the resistance forces of the six countries wanted to kill him, coupled with strong winds, waves, thunderstorms, and storms, he could only sleep under big trees or even caves on the road several times, the situation was extremely difficult, and the second time was also the farthest one of his cruises, which lasted most of the year and almost traveled all over the southeastern counties.

Chen Xu recalled carefully, because he couldn't remember whether it was the second or third time when he encountered Zhang Liang with a strong man secretly ambushed in Bolangsha to assassinate Qin Shi Huang.

Although it was not successful in history, Chen Xu did not dare to guarantee that it would not be successful this time.

Because through several events, it has been shown that history is always strikingly similar, even if there are slight twists and turns, but it is still tenaciously like a wrong DNA fragment to be forcibly twisted together, and finally grow into something roughly the same.

For example, Zhao Gao, who was originally dismissed from the post of commander of the CRRC government because of Yu Wuya's assassination, but last time I heard that this bastard had become one of the servants of Jiuqing again, and he was still in a high position.

For example, although Chen Xu fooled Xu Fu and did not present a chapter to Qin Shi Huang saying that there were three sacred mountains overseas, there were still scholars who played this matter, which shows that the development of history does not change much with the weak strength of one person.

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

Therefore, this matter must be taken seriously, and it must be planned carefully to see how to most perfectly resolve Zhang Liang's assassination crisis.

A few people chatted while drinking tea, although Zhang Cang is a royal history, but he is indeed a math fan, talking and chatting three sentences are not separated from arithmetic, Chen Xu is also rare to meet an ancient person who is proficient in mathematics in this primitive era, especially for the classical people to calculate various shapes of area, volume, angle, square, square and other mathematical problems encountered in life.

Chen Xu's mathematics boasts that it will be, not to mention the difficult problems of integration, at least the volume and area formulas of various shapes are still remembered, and some simple geometric application formulas can also say one, two, three, and there is no big problem in solving some simple parabolic equations, so some of the mathematical problems that Zhang Cang said are not particularly difficult in Chen Xu's opinion, once Zhang Cang says some example problems, he can almost give calculation methods and answers by dividing five by two, so after some small talk, Zhang Cang suddenly introduced Chen Xu as a confidant, I don't drink tea or enjoy the scenery, the more I discuss with Chen Xu, the more excited I become, and I have a feeling of forgetting to sleep and eat.

"Senior brother, are you here to study arithmetic?" Feng Zi'an, who had a bad quarrel with Chen Xu at the beginning, interrupted the discussion between the two angrily.

"Yes, yes, Brother Zhang, today's spring is full of flowers and plants, don't study these things that are bad for the scenery, it's only right for me to go out and enjoy the flowers!" Jiang Beiting was also dizzy by the two guys who were muttering and studying mathematics like little bees, and he felt a little bored when he drank tea.

However, Chen Xu is also a person who is very troubled, and he is ecstatic about Zhang Cang's mathematical knowledge, you must know that in the future, whether it is to study guns, cannons or steam engines, you need people with extremely strong mathematical knowledge, and in Daqin, he has not seen any good mathematics, Niu Quan, the best mathematics in the town, used to be only able to add and subtract, multiplication and division are not good, let alone square opening, and Zhang Cang in front of him is completely a clear spring in the mudslide of Daqin mathematics, which made Chen Xu find the direction, this kind of person must be usedIn order to cultivate a mathematical talent proficient in complex operations from scratch, it will take seven or eight years to cultivate even simple multiplication and division and solve unary and binary equations, and later generations will not begin to contact until junior high school, and complex mathematical and geometric problems will not be learned until high school.

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

And Da Qin didn't have that long for him to play hooligan.

In order to figure out how powerful Zhang Cang's mathematical knowledge is, Chen Xu asked the kitchen worker to take out a pen, ink, paper, and inkstone and spread it on the table, and began to draw various planes and three-dimensional figures to discuss with each other.

The two of them talked about it, and an hour passed negligently, Jiang Beiting and Feng Zi'an couldn't help it, the two forcibly pulled Zhang Cang away, and when the two of them continued to study, it was estimated that the flowers all over the mountains and fields were grateful.

"Chen Lidian, when he goes to Xianyang in the future, he must go to my house to find me, and when my nine chapters of arithmetic are compiled, I will ask you to correct the wrong ......."

Zhang Cang, who was surrounded by Jiangbei Pavilion and Feng Zi'an and several soldiers, rode on the horse and couldn't help but turn around and shout loudly.

……

The paper mill has never been open since Niu Xiaosi's death.

Recently, however, papermaking has restarted.

However, it is not the ordinary hemp pulp paper that was made before, but the bamboo pulp paper.

The bamboo pieces in the jar were soaked in grass ash water for four months, and after there was coal in the back, Chen Xu also asked the pottery workshop to burn a kiln of lime with crushed bluestone in a small coal kiln that burned porcelain, and burned it for three days in a row, making more than 100 catties of lime, so the back was blistered with lime water.

Niu Xiaosi is gone, and now Niu Kui has become the number one helper in the paper mill, although he is not as smart as Niu Xiaosi, but the methods and processes of papermaking are also well known.

The soaked bamboo pieces are placed in the stone pestle desperately, and the pestle is repeated thousands of times to completely turn into a ball of yellow bamboo pulp, and this process is carried out for a week.

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

The brewed wood pulp is also boiled in water, then the pulp is sieved with bamboo, and after being half-dry, it is lifted and hung in a sealed room made of adobe bricks, and the sulfur is smoked with charcoal for several hours, and when the smoke is completely gone, the white paper is stacked together, compacted tightly with wooden boards and stones, and after a few days, it is uncovered and dried one by one, and the snow-white and flat bamboo pulp paper is obtained.

Fumigation and bleaching with sulfur dioxide is the usual means of bad businesses in later generations, all kinds of food, nuts, tableware, traditional Chinese medicine, all the methods that can make the product look good, bad businesses will do everything, bleaching, waxing is almost inevitable, of course, there are consumers themselves in the fuel, because the whiter the food, the better, the better it should be, in fact, natural things don't look good, the more good-looking things tend to be more toxic.

This kind of bleached paper is the special paper that Chen Xu used to make the deposit and withdrawal slips of the bank, and when the time comes, the name of the money bank is printed, the date and number are filled in when used, and the seal is stamped and the signatures and seals of the handling personnel and the managers of the money bank, and a deposit slip similar to that of later generations is completed.

A few months have passed, it is estimated that Fan Yan's money village has almost been raised, and while this time is fine, you can go to Wancheng to discuss with him to see when the money village will be opened, and at the same time see what Hu Kuan has made his Qinghe Hotel look like.

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

"Three kings and four kings, you two go to the town and ask to see which cow has given birth to a calf!" Chen Xu shouted to a few people standing at the door of the room.

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

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

"Chen Lidian, do you want to drink milk? How can you drink milk, just now I saw two young women in the past, their breasts are bulging, they must have just given birth to a baby with milk, or I will call them back and take a few sips to relieve your cravings......"

"Get out, I want milk!" Chen Xu couldn't laugh and smashed the stone used for pressing paper in his hand.

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

"Chen Lidian, I don't know how much you want to eat, I asked the fellow to bring the cow." Wang San hurriedly shouted loudly as if offering a treasure.

Chen Xu's face turned black in an instant.

And the old man of Morning Glory looked at Chen Xu's face and persuaded very worriedly: "Lord Lidian, the milk is nothing to drink, and it is not clean, my granddaughter gave birth to a baby last year, and she still has some milk, or ......."

"Shut up!" Chen Xu couldn't help it.

Chen Xu regretted a little that he shouldn't have let Wang San and Wang Si get milk, and he didn't know how the two goods went to the town to publicize, it is estimated that it won't be long before the whole town knows that Lord Lidian is hungry for milk, and by the way, there will be various versions of the legend, such as holding and drinking or drinking with the top of his head like a calf, all kinds of rich postures.

The old man immediately trembled and didn't dare to speak, and the people in the town never seemed to have seen Chen Xu so angry and angry.

"What are you doing standing there, hurry up and help me milk some milk!" Chen Xu took out a pottery bowl from the room and handed it to the old man, who had to squat under the cow's belly to milk the cow.

"Enough is enough!" Seeing that he had squeezed a small half bowl, Chen Xu hurriedly stopped it, and then asked the old man to lead the cow and hurry away, because at this time, there were already many people who were watching the excitement outside the yard and pointing at Chen Xu and the cow, among which there were several little daughters-in-law with bulging breasts gathered together to whisper and cover their mouths and laugh, looking at Chen Xu's eyes full of that style.

Lao Tzu's reputation was completely ruined.

Chen Xu entered the house with milk with a dark face.