[Recommend my new book "The Building Will Fall", I personally think that it can still be read!]

There are new stories happening every day in Chang'an City, and these days, the people of Chang'an have found that there are many more people from outside the city.

Monks, Taoist priests, nuns...... There are also strangely dressed monks!

For a time, in Chang'an City, the gods gathered.

"The little monk's name is Yile, this female benefactor ......"

"Go out! My family doesn't believe in the Buddha, give you food, Lao Jun will be angry!"

"This benefactor, the little monk ......"

"Hurry up, hurry up, we don't welcome monks!"

"Little Monk ......"

Tang Xuejun, who was immersed in settling accounts, was stunned for a moment, then picked up a food box from behind the counter and handed it over: "The rest of it from yesterday shouldn't be broken." ”

"Thank you! Thank you!" the little monk hurriedly took the food box and couldn't wait to nibble on it.

"It's delicious!

"Xiao Jue, is your man here? It's been more than half a month, and I said I wanted something for Lecheng last time...... Guo Keying walked out of the back room, and when she saw someone in the store, she was still a monk, and she was immediately interested: "Yo, this little monk is very handsome!"

"Thank you, donor, little monk farewell!" The little monk took a few more pieces of snacks and prepared to turn around and leave.

In these years, monks are not easy to mix, Li Longji has been to the Tao since he was a child, and he is not interested in Buddhism, and Wu Zetian believed in Buddhism when he was in power, and some big figures in the monk world did a lot of immoral things in order to compliment Wu Zetian, Li Longji naturally carried out a purge after ascending the throne, although it did not reach the point of spoiling the Tao and destroying the Buddha, but the life of the monks is very different from a few decades ago.

"Don't go!" Guo Keying stopped him, and then said to Tang Xueying with a wicked smile: "Leave this pretty monk behind, and be angry with your man when he comes!"

Tang Xuejun only rolled her eyes silently and continued to dial the abacus.

"Where are the people?" In front of the store, Lecheng, who got off from a simple carriage, asked anxiously, "Didn't you say that today?"

For more than half a month, Lecheng can be said to be living like a year, the wedding date is approaching, and if he can't think of a way, he really wants to marry someone he has never seen before.

Xu Chen, who was anxiously waiting for the three girls, finally came over from the compound across the street, carrying two thick books in his arms.

"You're finally here!" Guo Keying took the lead and teased: "If you don't come again, Xiao Jue will run away with the pretty monk!"

"Donor, you ......" The little monk was so frightened that his face turned white, and he hurriedly shook his head at Xu Chen: "Donor, the little monk has no ......"

"Guo, Ke, Ying!" Tang Xueying in anger grabbed the abacus, she no longer minded showing her true side in front of Xu Chen.

"Haha!" Guo Keying snorted, hurriedly widened the distance between herself and Tang Xueying, jumped to Xu Chen's side and asked, "What about the things?

"That's it!" Xu Chen then handed over the two books he brought.

Guo Keying looked at it for a moment and exclaimed, "Book? or the scriptures read by the monk?"

"Are you mistaken? Do you let Lecheng ...... dignified" woke up outsiders in the store, Guo Keying hurriedly changed his words: "A daughter's family went to sell the scriptures read by monks?"

Tang Xueying also walked out from behind the counter, took a scripture book from Guo Keying's hand, and flipped through it.

"What's the hurry, I'm asking you to see what the difference is between these two books!" Xu Chen sold.

Lecheng was naturally the most concerned, and she was puzzled when she heard Xu Chen say this, so she looked through it carefully.

"Both are Diamond Sutras!" Guo Keying is not unlearned, although he does not believe in Buddhism, he still recognizes this Buddhist book.

"It's a little different!" Lecheng has probably read the most books among the good sisters, and after reading it carefully for a while, he said: "This book should be carved and printed, but this one doesn't seem to be ...... It's not hand-copied, but why does it look so clean and neat?"

"Is it just clean and tidy?"

Xu Chen was a little unhappy, it took half a month in the laboratory to get such a comment, doesn't it seem that our Lord Xu is not level!

"That's not right!"

After turning a few more pages and carefully comparing the engraving book, Lecheng found that the size and arrangement spacing of each word in this book were more neat than those of the engraving book.

Because no matter how careful the craftsman is, after a long time, it is inevitable that there will be a little mistake, and even if it is done all over again, the size of each word and the distance between each other will never be as neat as the other book, as if each word has been measured with a ruler.

"It's pretty much the same!" Xu Chen, who felt that the fruits of his labor had been respected, no longer sold his son, and explained directly: "In addition to what you just said, every word in this book is thicker and gives people a fuller feeling. ”

"Indeed!" Tang Xuejun naturally spoke to Xu Chen.

"Are you saying that this method of printing books is the business you want to give to Lecheng?" Guo Keying twitched the corners of her mouth and said: "Although printing books also makes money, there is no one in a larger family who does not open a book printing market, and the poor family can't afford to buy half a book all year round......"

"Do you know how long it takes for the engraving book to be printed?" Xu Chen interrupted her directly.

"I know this!" Tang Xueying replied: "The engraving book is determined by the number of words, like this Diamond Sutra, it will take eight months to engraving alone!"

"Then do you know how long it took me to write this book?" the smile on Xu Chen's face was very proud.

The three of them suddenly, it turned out that they had said so much, and the point was here!

Indeed, the price of engraving books is high, and ordinary people cannot afford it, because it takes too long and the cost of engraving is too high.

If the time consumption can be reduced, the cost can also be greatly reduced.

"How long?" Lecheng said expectantly.

"If you don't count the time to make the tools, it only took half an hour for this book to be printed!" Xu Chen said proudly: "It also includes binding into a book!"

"Then it only took you half a month to make the tool?" Guo Keying's face was surprised.

"How can you say it...... Xu Chen stinked and deliberately said: "This tool of mine is different! It can be said to be an artifact!"

"Xiao Jue, do you want to smoke him?" Guo Keying turned her head to look at Tang Xueying: "You don't want to do it, I'll help you!"

"It's too unintuitive to just say, come with me!" After speaking, Xu Chen turned around and left.

Several people crossed the street together, entered the compound opposite, and turned into a side courtyard in the northeast corner.

There was a young man guarding the courtyard, and when he saw Xu Chen coming, he helped open the door.

In the empty workshop is a strangely shaped artifact, which looks a bit like a spinning wheel, but there is not a thread in sight.

In fact, Xu Chen has never seen what the printing machine looks like, he has only used an electric printer, and he doesn't know what the machine in the printing house looks like.

Fortunately, the machine is not the key, just make a transmission device that can use water power.

Xu Chen didn't explain, he directly picked up a piece of paper on which he wrote words from the table next to him, and said: "You see, fifty words are written on this paper, if it is an engraving, it will take at least one or two days to engrave these fifty words, and you can't make mistakes during this time!"

Then, Xu Chen opened the large iron box next to the machine, the box was divided into several layers like a lady's dressing box, Xu Chen picked out fifty metal blocks from the box, and then arranged them in order on a paper-sized printing plate.

Immediately afterwards, Xu Chen started the machine, the sound of the machine sounded, and what appeared in front of the girls was a printed piece of paper.

Guo Keying picked it up first and found that it was the same as the Diamond Sutra, the handwriting was neat and solid, and the paper was clean and clear.

"You're a movable type!" Tang Xuejun exclaimed.

"Do you still know movable type?" Xu Chen was also surprised, didn't clay movable type appear in the earliest Song Dynasty?

Forget it, the world is different!

"Of course!" Tang Xuejun was a little proud, and said: "There are already people on the floating beam who use porcelain movable type to print books, but the cost of porcelain movable type is not small, and it is not easy to fire, and it will crack in a short time, but the cost is still much smaller than that of engraving." ”

Sure enough, you can't underestimate the working people!

If there is demand, there will be supply, no matter what age people are, in order to survive and make money, they will not be less thoughtful.

"Are you made of iron?" Guo Keying was not afraid of getting dirty, and directly picked up the movable type that was still stained with ink and asked Xu Chen.

"This is an alloy, the same as bronze!" Xu Chen explained: "The proportion of raw materials in it is the secret recipe I want to give to Lecheng!"

"With this secret recipe, I don't have to worry about as many movable types as I want! In addition, the movable type I made has a very long service life, and I won't see wear and tear after two or three years. ”

Movable type printing is said to be a thinking inertia, although this is very much an afterthought and a suspicion of despising the efforts of the ancestors.

Once you break this thinking inertia, as long as you are not stupid, you can understand the principle.

However, even if the principle is understood, it is impossible to print a book that is better than the engraving without solving the most critical technical problems.

Xu Chen spent half a month, mainly in the preparation of alloys, not without thinking about using lead type, but the single-component type is too easy to be recognized.

What Lecheng needs is a secret that can only be mastered by her, only in this way can Li Longji realize her value, if you can start with a random person, Li Longji is likely to directly send a eunuch to pick peaches, isn't it a waste of work?

In addition, the movable type of lead is too soft, and the effect of printing is not necessarily better than that of engraving, in fact, the movable type used by printing houses in later generations is not a single lead.

The alloy is stronger than lead, and the cost is not very high, and the melting points of the concentrated metals are similar, and it is impossible to find how many metals are in them and in what proportions at the current level of technology of breaking down metals by fire alone.

"This machine is made of iron, but it can be replaced with wood, anyway, that's not the point!" Xu Chen suggested again: "As long as you present this secret recipe to the Holy Lord, the Holy Lord will naturally not marry you to any wealthy family again." ”

Lecheng instantly understood, his eyes were full of surprise!

The greatest heritage of the family lies in cultural inheritance, in such an era when knowledge is equal to books, monopolizing book printing is equivalent to monopolizing culture and education.

As soon as such a sharp weapon as movable type printing comes out, the expensive engraving plates in the hands of the family will become worthless.

The emperor has mastered such a sharp weapon, which is equivalent to cutting off the way for the family to monopolize culture and education, or in a few years, there will be a large number of poor students among the scholars participating in the imperial examination, and then there will be a large number of officials from poor families in the court, and the situation of the family monopolizing the court will be gone forever.

This is simply an artifact that destroys the gate valve family!

With this, Li Longji will accomplish a great cause that even his ancestor, Tian Khan Li Shimin, can't accomplish!

You say, does Li Longji still dare to marry Lecheng, who knows the secret recipe, to the family?

This is not a matter of grabbing the secret recipe to make money, this is a major event related to the stability of the court situation and the stability of the imperial power!

Even if there is even the slightest possibility, this secret recipe must not be allowed to leak out of the royal family!

If it was not the emperor's daughter who presented the secret recipe, the emperor would have directly executed the person and never suffered in the future.