Li Muyun was too lazy to care about how Chen Shangshu communicated with the Ministry of Civil Affairs and did not want to care about it. He just made a few telescopes, and just explained it.

In fact, this is the case in the Tang Dynasty where technology is not well developed. If it were in later generations, dozens of telescopes were probably not even interested in taking over the smallest workshop.

Of course, if Li Muyun hadn't made some raw materials for Changle, he wouldn't have to do this kind of thing himself, and the cost would have been so high.

But then again, I have the right not to expire or invalidate it. In order to make the little girl Changle happy... Forget it, I won’t say it anymore. In short, it’s all about tears. And there is another thing to deal with now, a thing that is much more important than a telescope.

The next day, in Da'an Palace, Li Muyun sneaked out of Li Yuan, and then waited for him to speak, the old man had already thrown a grape: "Boy, come out, I've seen you a long time ago."

"Hehe, my dad's eyes are like a torch!" Li Muyun laughed, flashed out from behind Chen Mu, and asked deliberately: "But how did you find me?"

"I found that you are not simple yet. Who else can be beaten by a stick on the back of your neck?" Li Yuan said as he pointed to the ground proudly.

On the ground, Li Muyun's shadow was printed there, and a "stick" was poked on the edge of a big head, which was projected by the folding fan he used to insert into his neck.

Li Muyun smiled awkwardly and gave a thumbs up to Old Li Yuan. He, who was a killer, knew that the shadow on the ground would reveal himself, but in order to make the old man happy, he could only pretend to be stupid.

After all, Li Yuan is the Supreme Emperor. If he is really a god, he will be scared by the old man and will be fine if he is so scared that he will be fine if he is helpless and Li Er is going to be chopped out and his head will be chopped off.

Li Yuan glanced at Li Muyun who was smirking and suddenly said angrily: "You kid is so happy for a while. I'm afraid you have forgotten me, the old man?"

Li Muyun picked up a grape from the plate beside Li Yuan and threw it into his mouth. He smiled and squatted to the old man: "Dad, look at what you said, am I busy here?"

"Busy? What are you busy with?" Li Yuan waved to the eunuch behind him, and someone immediately brought a chair for Li Muyun.

Everyone in Da'an Palace knows that although Li Yuan never gives Li Muyun a good face, in terms of favoritism, this Xiaoyao King is definitely the leader among everyone, and even Li Er is not as good as his position in Li Yuan's heart.

When Li Muyun didn't come on weekdays, the old man Li Yuan always looked lost. Apart from looking at the sky, he would ask the movements of King Xiaoyao from time to time, how long it hadn't been here.

So many times, people around Li Yuan are speculating whether Li Muyun is really Li Yuan’s illegitimate son outside, otherwise how could he be favored to such a degree?

It is precisely because of this that Li Muyun was able to move freely in Da'an Palace, without having to inform or say hello, and going in and out was like walking in and out.

With the chair, Li Muyun simply carried a whole plate of grapes into his arms, squatted on the chair, and ate it bite, and answered the old man's question: "Do some real estate business, engage in development, and do some business."

Li Yuan glanced at him and said impatiently: "Speak human words!"

Li Muyun replied in a good manner: "It was to build a few large villas in Mount Li, and then he took the land back from the monks and Taoists, and then built a papermaking workshop. Oh, by the way, he also made some environmental sanitation."

Li Yuan thought for a while, shook his head, and expressed his disinterest.

Li Muyun kept paying attention to the old man. Seeing him performing like this, he smiled and jumped off the chair: "Dad, how are your handwriting?"

Li Yuan rolled his eyes and said to Li Muyun angrily: "What kind of demon moth do you want to make trouble with?"

Li Muyun said: "It's nothing big. I just plan to open a printing shop after a while. If your handwriting is still eye-catching, please write some words for me. I will use it as a template and use your font to print books in the future."

"Fuck, are you kids talking? What does it mean to be eye-catching!" Li Yuan didn't care what Li Muyun wanted to do. He was really angry with this bastard's words.

However, Li Muyun's suggestion really made Old Li Yuan a little interested. After scolding, he said again: "But you, kid, don't give you too much hope. I won't help you copy hundreds or thousands of books, at most ten books!"

Chen Mu and the eunuchs and palace maids following Li Yuan were all helpless. They were still cursing just now, but they took the initiative to help again after turning their faces. This shows that Li Muyun is really popular.

But what was surprising was that Li Chengqian just looked at the old man and laughed, and seemed to not take Old Li Yuan's words to heart. When the old man was about to get angry, he slowly spoke: "Dad, no matter how unfilial we are, we can't let you copy books all the time."

"Then what do you want me to write for you?" Li Yuan said dissatisfiedly.

"Uh..., this..." Li Muyun snorted for a moment and finally said, "Can you help me write every word from ancient times to the present?"

"What? You little bastard, I must kill you!" Li Yuanteng stood up from the rocking chair and looked around to find something.

Li Muyun was so scared that he retreated four or five feet, and waved his hands repeatedly: "Hey, dad, what are you doing? This is, don't be excited, don't be excited, you have something to say!"

"I'm just talking to you. I'll write every word. Do you know how many words are in our Tang Dynasty? You want to be exhausted, right?" Li Yuan searched for a long time but couldn't find a handy home. Finally, he was excited and threw his shoes out.

In fact, this is not a big deal for Li Yuan to get angry. In fact, there were quite a lot of Chinese characters during the Tang Dynasty. After a rough calculation, there were tens of thousands of characters. It would be better to copy ten books than to write each character once.

But Li Muyun was also helpless. If he wanted to print movable type, he really needed to have a template for each character, otherwise he would have to do woodblock printing like before.

And this template is really important, and he dare not find someone to write it. Although if he makes this request, many people in the Tang Dynasty will actively sign up to do this.

So after thinking about it, he thought of Li Yuan, the little old man. It seemed that this old man was the most qualified to write templates in Mandatang. No matter in terms of status or other aspects, no one was more qualified than him.

After a while, Li Yuan finally lost his energy. Li Muyun stopped and was kicked by the little old man a few times. He helped the little old man back to the chair and sat down. He continued to speak with shame: "Dad, it's actually only tens of thousands of words. Besides, you don't have to worry. Please write a thousand hundred words for me first. I'll find someone to carve it out. In the future, I'll find someone to carve it. If you find any words missing, you can help me make up some."

"Fuck, why don't you ask someone else to write!" Li Yuan was obviously not relieved and glared at Li Muyun and shouted.

"Because I really can't think of anyone else in the Tang Dynasty who is more qualified than you, right?" Li Muyun gave the flattery half-true.

Li Yuan was obviously very comfortable with this flattery and snorted, "Hmph, you guy is meant to be kind. But what you think is bad. Even if I help you write all the words, you won't make much money in the printing shop."

Li Muyun was a little confused: "Why?"

Li Yuan said disdainfully: "Why? Do you think those aristocratic families and gentry are fools? If printing books really makes money, why do you think they don't open more bookmark shops to print books? So you'd better not be smart and do what you are good at. You'd better not participate in printing books or something."

"But they are really stupid." Li Muyun felt that Guan Zi had almost sold it, so he showed up, picked a few leaves from the tree on one side and put them in his palm, and said proudly to Old Li Yuan: "Let's take a look. If these leaves represent the four words "East, West, South, North, and North", then what would it become if they changed the order?"

Old Li Yuan looked at Li Muyun in confusion and changed the leaves in sequence, and said inexplicably: "Now are they north, south, west and east?"

"Yes, north, south, west and east." Li Muyun said, and changed the leaves in his hand to the position: "This is the north, south, south, and then this is the north, south, north, east."

Old Li Yuan was not confused yet. Looking at the leaves, he frowned thoughtfully, as if he had thought of something.

But Li Muyun took the opportunity to say, "Dad, as long as you write the characters out, we will make those characters like these leaves into independent modules, and then sort them out in a certain order in any order. Wouldn't we no longer need to carve the entire layout!"

"Well, there is some truth." Li Yuan seemed to understand something, but he seemed to not understand. After thinking about it, he said, "What if there are duplicate words?"

"Then let's engrave more of the same characters. Find a craftsman and engrave ten characters and a hundred characters. Put them together when you don't need them. Pick out the characters if you need to print them and put them in a frame. If there are repetitions, take out a few more at a time."

"Pa", Old Li Yuan fisted and palmed, and smiled: "Hao, it's really high! If this is the case, wouldn't he print any book you want? Just arrange the mold you said and the mold you said? Even if there is a word wrong, at most it is to change it and there is no need to re-carve it."

Li Muyun approached the old man, raised his eyebrows and said, "Yes, that's what it means, how about it, Dad, this is a big deal, right?"

It’s so easy to print books. If printing books can be so easy, the cost of books will be reduced immediately, and you won’t have to worry about not being able to sell them at that time.
Chapter completed!