Datang Storyteller: Uncovering the Secret of Xuanwu Gate, Li Er was stunned

Great voyage?
Cui Ren was taken aback for a moment, seeing that everyone else was not surprised, but instead looked expectant, and couldn't help but become curious.

No wonder, every time after speaking, His Majesty and the Crown Prince are not in a hurry to leave.

It turned out that it was because Mr. Qin gave them a small treatment.

Qin Yu nodded, and talked about foreign affairs as usual. The two industrial revolutions have been finished.

The big voyage is almost the same.

After Qin Yu finished the last part, he said, "The Secret of Longevity is coming to an end. It's almost over. I won't tell you about sailing and foreign technology in the future."

"Then what are you talking about?"

Li Tai was a little disappointed, he never tires of listening to Da Hang Hai.

Qin Yu thought for a while and said, "In the future, I will tell you about the four great inventions, let's talk about weapons."

"What can we say about weapons?"

"Airplanes are still interesting. If only I could invent airplanes like the Wright Brothers, or steam locomotives."

Li Tai looked envious. Although he likes sailing, he is also interested in airplanes and trains.

"What's the matter? If you like it, try it. What if it succeeds? Instead of listening to other people's success stories and envious of others, it's better to try it yourself."

"This is called Linyuan Xianyu, it's better to retreat and make a net."

Li Tai nodded, his eyes sparkled with excitement.

"Brother-in-law, you are right. I am here to listen to the story. Even if you tell it a hundred times, it is still a story. You might as well try it yourself."

After finishing speaking, Li Tai looked at Li Shimin and said, "Father, my son wants to go sailing and study airplanes and trains."

"Hahaha, since you like it, you can do it."

Li Shimin is not envious of what Qin Yu said.

It's just that he is the monarch of a country, he has responsibilities and obligations on his shoulders, and he can't leave all these to study other things.

Since Qingque is interested, let him help him realize these wishes.

"Qingque, I now appoint you as an industrial pioneer, responsible for researching trains, airplanes and ships, and taking into account navigation tasks."

"You need funds. I will try my best to help you find a solution, but the premise is that you can't return without success, and you must show me some results."

"My son obeys."

Hearing Li Shimin's appointment, Li Tai was completely excited.

It's great that his father also supported him in doing these things. He must make planes and trains out.

Seeing that Li Shimin valued these things, Qin Yu couldn't help but nodded, and reminded Li Tai, "His Royal Highness King Wei can try to recruit craftsmen from the private sector."

After speaking, he handed him another book.

"Keep this book safe, it can answer your questions at critical times."

This book was drawn in a lottery before, and it is very suitable for developing technology.

Li Tai flipped through the book, and suddenly laughed excitedly, "Thank you, brother-in-law, this is a good treasure. With it, I believe, I will be able to make what you said."

Qin Yu nodded, "I also hope you can succeed."

"Qingque, I also believe in you, work hard!"

Li Shimin may not have known the importance of technology before, but now he understands it very well.

Technology can really rejuvenate a country.

Cui Ren looked confused, "Well, what is an airplane and what is a train?"

Li Shimin and Li Tai looked at each other, and laughed, "You don't understand this, but if you want to participate, it's not impossible, you just have to pay for it."

"what?"

Cui Ren looked embarrassed, he didn't know anything, so he asked him to pay?
This seems inappropriate, right?

"I don't force you, let's see what you want, it's something good." Li Shimin wanted the family to contribute funds, but also felt that the family's participation might be very troublesome.

Because of the conflict in his heart, he didn't let Cui Ren make a choice immediately.

The same is true for Li Yuan.

After all, Datang's current national conditions are like this, and no matter how hard you try to change it, it will not be a matter of overnight.

Cui Ren did not express his opinion immediately.

Because I am afraid of regretting participating, and also afraid of regretting not participating.

"This matter, Cao Min will discuss it first and then give His Majesty an answer."

"Row!"

Cui Ren's words gave Li Shimin time to calm down and think, so he didn't object.

Qin Yu raised his eyebrows, a little surprised, he really didn't expect this fan of his to be quite courageous, and he didn't even tremble when talking to Li Shimin.

It seems that these years have been tempered well in the mall.

have a future.

Li Chengqian on the side looked a little gloomy when he saw Li Tai and Li Shimin being like fathers, loving sons and filial sons, enjoying themselves happily.

Qingque likes to do anything.

He doesn't care what he does.

Father is partial.

I'm afraid he doesn't have him as a prince in his heart for a long time.

"Father, my son also wants to contribute to the Great Tang together with the second brother, and I ask my father to agree."

Li Ke's face was calm from beginning to end.

On the one hand, like Cui Ren, he doesn't know what a flying chicken is!

I don't know what kind of train it is.

He wanted to participate purely to find something to do so that he could stay in Chang'an. On the other hand, he was happy to see Li Shimin, so it might be beneficial to do this.

As for the rest, he really didn't think much about it.

Li Shimin glanced at Qin Yu and agreed when he saw that Qin Yu had no objection. "Okay, then you and Qingque will be responsible together."

He felt that Qin Yu had other arrangements to keep Li Kelai, but the arrangements had not yet been made. Since he did not object, then he would do it first.

Let's talk about arrangements later.

"Thank you, Father!"

After Li Ke thanked him, he stood aside and did not speak again.

Seeing that Li Ke also participated, Li Chengqian couldn't help but feel a little moved, "Father, son..."

"You don't need to participate. You are a prince, so you should study hard, instead of thinking twice and not knowing what you want to do."

As soon as Li Chengqian spoke, he was rejected by Li Shimin.

No matter how Qin Yu arranges it, the prince will always be the prince, so he needs to study the government and assist him in handling official documents.

The greater the ability, the greater the responsibility.

Now that the prince is in this position, he has to bear what he should bear.

Being rejected mercilessly, Li Chengqian was astonished, but also felt ashamed in his heart.

The emperor rejected him so mercilessly in front of so many people, but did he still have him as a prince in his eyes?
How could he be so eccentric?
Li Chengqian clenched his fists tightly, his eyes flushed.

Li Yuan glanced at him and shook his head, the prince still didn't understand his father's good intentions.

Li Lizhi noticed that the atmosphere was a little awkward, so she asked curiously, "Qin Yu, what are the four great inventions?"

"The four great inventions, you are not unfamiliar with them, Cai Lun made paper in the Eastern Han Dynasty, the compass in the Zhou Dynasty, gunpowder and movable type printing."

Compass and Cai Lun paper, they know a little bit.

But why haven't they heard of the other two?

"What is gunpowder?"

Qin Yu frowned, "A simple explanation of gunpowder is a flammable and explosive substance mixed with sulfur, saltpeter, and charcoal in a certain proportion."

"If you use it well and use it in the military, you can go forward and be invincible."

Qin Yu briefly talked about gunpowder.

Because I haven't formally said these things, it's just that Li Li asked the question, and he just answered the question.

"And what is movable type printing?"

Li Shimin and Li Yuan also became very interested in the four great inventions that Qin Yu was going to talk about.

"When it comes to movable type printing, we must first talk about the disadvantages of woodblock printing. You must know that woodblock printing has three biggest shortcomings. First, engraving is time-consuming, labor-intensive and materials-intensive; second, it is inconvenient to store a large number of book blocks. ; Third, typos are not easy to correct.”

Li Shimin and Cui Ren nodded at the same time.

They have a bookstore in their hands, so naturally they have to use engraving and printing.

The three shortcomings Qin Yu mentioned are exactly the same.

"indeed so."

Qin Yu went on to say: "Movable type printing is an improvement and invention on the basis of improving the shortcomings of engraving printing."

"Use clay to make blanks with the same specifications, and engrave a reverse font on one end. The raised height of the strokes is the same as the thickness of the edge of a copper coin, and it is hardened by fire to become a single clay movable type."

"Of course, in order to meet the needs of typesetting, there are generally several or even dozens of commonly used characters, in case they are used repeatedly in the same edition."

"When encountering rare characters that are not commonly used, if there is no preparation in advance, you can use them as you make them. In order to facilitate the selection of characters, the clay type is classified according to rhyme and placed in the wooden grid, and a note is attached to mark it..."

Qin Yu roughly explained the operating principle of movable type printing.

Li Shimin and Cui Ren were shocked after hearing this.

"It turns out that this is movable type printing."

"The person who invented this printing technique is really a genius. It would be great if I, Tang Dynasty, also had this printing technique."

Li Shimin expressed emotion and envy.

Cui Ren was shocked.

There are countless books in his hands, but because of the shortcomings of engraving, printing a book is time-consuming and labor-intensive.

Because the cost of books is so expensive that others cannot afford to print them.

Rich people think the price is high, let alone the poor who have no money.

A noble son from a poor family?
This is absolutely impossible.

They don't even look down on books, let alone pens, inks, papers and inkstones, and they have no source of knowledge, so where is the precious son?
"This movable type printing technique is really good and powerful. If we can research it, wouldn't it be..."

Thinking of this, Cui Ren trembled all over.

I didn't expect to have a meal with Qin Yu today and listen to a storybook, and I would gain so much.

Originally thought that the storybook was exciting enough, but Li Shimin and the others came here for the storybook.

It wasn't until now that Cui Ren realized that Li Shimin and Li Yuan were not for the obedient script, but for Qin Yu, and for the various exchanges with Qin Yu after the script was over.

Flying chickens, trains, he doesn't think how powerful and powerful they are.

But Cui Ren could feel the movable type printing and gunpowder even if he hadn't seen them. These two things are very powerful.

Hear Cui Ren's voice.

Li Shimin's breath changed, and he looked at Cui Ren coldly.

"Research out?"

Cui Ren noticed something was wrong, so he nodded awkwardly, "Research it out and present it to His Majesty."