"This matter must be kept secret, especially the method I gave you, and it must not be leaked." Cao Zhang told Sima Lang.

Sima Lang solemnly promised: "Don't worry, Childe, I will definitely arrange the most reliable craftsman in the family to carry it out to ensure that the secret recipe will not be leaked." ”

Cao Zhang nodded reassuringly: "Without further ado, Boda, you can go back and arrange it now." ”

Sima Lang agreed, carefully put away the bamboo slips, and then walked away quickly.

Xiahou Ba watched Sima Lang leave, couldn't hold back his curiosity anymore, and stepped forward to Cao Zhang and said, "Ziwen, what did you give Boda to make him so excited, and say that he could make a lot of money?" ”

Xu Shu also looked at Cao Zhang intently, looking forward to his answer.

Cao Zhang didn't intend to hide the two, he asked Xu Shu and Xiahou Ba: "Yuan Zhi, Zhong Quan, you usually write articles, in addition to using bamboo slips, you should also use paper, right?" ”

Xu Shu nodded: "Occasionally, for the sake of lightness, I do write on paper." However, it is not easy to preserve the content written on paper, and the situation of ink is also serious. ”

"Do you know what we're using as a raw material for the paper we're using now?" Cao Zhang asked again.

Although Xiahouba has also learned to read and write since he was a child and studied military books, he did not understand such technical issues as papermaking at all, so he could only shake his head blankly.

"As far as I know, the raw materials for papermaking should be sandalwood and bark." Xu Shu replied after thinking for a while.

"Yes, the current paper has made great progress and improvement after the improvement of Cai Lun in the previous dynasty, but the paper is still very brittle, and it is not easy to preserve, and the problem of ink has always existed."

"This has led to the fact that we are now writing official documents and articles, and we are still mainly using bamboo slips. Although this method solves the problem of ink removal and preservation, it also has the problems of being more bulky, difficult to carry and transmit remotely. ”

"I researched it, as long as the raw materials are properly adjusted, and I try to use mulberry bark, rattan bark, bamboo, and wheat straw to make paper, I can completely solve the problem of the firmness of the paper and the ink flow."

"The paper made from such materials and the methods I taught them must be far stronger than the previous paper, and it is more conducive to writing and preservation."

"With this kind of paper, if it is combined with my other innovative idea - movable type printing, it will definitely be extremely easy to make money every day!" Cao Zhang introduced the two techniques he provided to Sima Lang in detail.

Xiahou Ba couldn't understand it anymore, and asked suspiciously: "Movable type printing, what does this mean?" ”

Xu Shu looked at Cao Zhang, also at a loss.

"As I said earlier, most of the books on the market today are written by hand on bamboo slips. This method is extremely demanding for the writer, and the cycle is long and the output is very low, so the income of the current bookstore is not high. ”

"I researched a new method, which is to try to burn the soil into modules of equal size, and engrave commonly used Chinese characters on the modules, which is called movable type."

"With movable type, we can arrange and combine blocks for different books to form a template for the pages."

"When the time comes, we can simply brush the ink on the stencil, and we can print a lot of it on our newly created paper, and finally bind it into a book."

"In this way, as long as the layout is correct, the chance of typos in the book is very low, and the reproduction speed is very fast. My preliminary estimate is that a set of templates should be very easy to print thousands of identical books in one day. ”

"Such books are low-cost, so they can be sold relatively cheaply, and they are easy to preserve and read. As long as the craftsmen of the Sima family can really turn my idea into reality, and a large number of printed books are sold in Xudu and even in various places, the cost of our military supplies and various dots will not be a problem at all in the future. ”

Cao Zhang talked eloquently and explained the principles and details of movable type printing to the two in detail.

After listening to it, Xiahou Ba felt as if he had listened to the Book of Heaven, but he just looked at Cao Zhang with a confused expression, not knowing what he meant at all.

Xu Shu completely understood the principles of the two techniques Cao Zhang's words, and his eyes widened.

If Cao Zhang's vision can really be realized, it will definitely be a profitable business. Cao Zhang's solution to military needs and expenses is really a very easy thing.

Xu Shu looked at Cao Zhang, his eyes were full of admiration and admiration, and he said very excitedly: "Childe is really a genius, he can come up with such a subtle technique, Xu Shu is convinced!" ”

Cao Zhang pretended to be modest on the surface, but he smiled in his heart.

Yuedan commented on the success of playing a text porter, this time it was directly moved out of the four major inventions in advance, and you are worried that you can't make money?

"Yuan Zhi has won the prize! In fact, I have a plan below that can make money in conjunction with the above two ways, and at the same time achieve the purpose of bringing Xun Yu closer to the monk's book! Cao Zhang then said another idea of his own.

Wooing Xun Yu was the plan that Cao Zhang had determined at the earliest, but he never thought of how to impress him.

This person is resourceful, has a literati backbone, and maintains loyalty to the Han family, which is definitely not effective in ordinary ways.

Cao Chang also thought of papermaking and movable type printing when he had a whim, and he came up with an excellent method.

"Xun Lingjun has a very high reputation and has a very high prestige in the Han family; He has followed Sikong for many years and has made countless contributions to Sikong. ”

"When Lu Bu, Chen Gong, Zhang Miao and others attacked Yanzhou, it was with Xun Lingjun's own strength that he tried to ensure that the three counties were not lost, so that Sikong finally turned the tables and defeated Lu Bu, so his voice in front of Sikong is also extremely high."

"If Childe really has a way to impress Ling Jun, with his support, your chances of getting the position of the prince will be greatly increased!"

"I just don't know, what is the so-called thing that Gongzi can not only make money, but also bring Xun Lingjun closer?" After Xu Shu analyzed the importance of Xun Yu to Cao Zhang, he asked Cao Zhang.

Cao Zhang smiled and picked up another bamboo slip from the side, handed it to Xu Shu's hand, and said with a smile: "Yuan Zhi will know if he sees it." ”

As Cao Zhang continued to come up with high moves, Xu Shu was already full of expectations for the method he said, and immediately took the bamboo slip and looked at it seriously.

Xiahou Ba kept smacking his lips and admiring on the side: "Ziwen, how is your head long, how can you have so many ideas and ideas?" I remember that you used to be a person who didn't even read books, why did you suddenly change so much now? ”

"You said it's in the past, I can still stay in the same way and not make progress! This is called three days to be impressed, you know? Cao Zhang said proudly to Xiahou Ba.

After a while, Xu Shu finished reading the bamboo slip in his hand, but his face was stunned, obviously not fully understanding the content of the bamboo slip.

"Childe, this article is only a thousand words, four words and one sentence, the battle is neat, well-organized, and brilliant, but I really don't know how it can impress Xun Yu?" Xu Shu asked Cao Zhang.

"Yuan Zhi is right, the name I gave it is "Thousand Character Text". Have you noticed that there are no repetitive words throughout this article, and the content is easy to understand. ”

"Nowadays, the literacy enlightenment book circulating on the market, the number of words in "Fan Jiang" is small, and the more than 2,000 words in "Urgent Chapter" is slightly more, and the number of words in this "Thousand Character Text" is just right, and it is also more conducive to promotion."

"I gave this article to Xun Lingjun and asked him to publish it on his behalf, so that it can be used to popularize teaching and cultivate scholars, is it a great merit for him? Do you think he will gladly accept it? ”

Cao Chang explained the purpose of the Thousand Characters and his own thoughts, and then asked Xu Shu questions......