Wait until the two of them leave.

Zhu Di said to Guo An with a serious face: "Guo Qing, Tao Yiping and Yang Ting, one is the youngest son of Wanhu, and the other is the youngest disciple of Wanhu, who are proficient in the development of craftsmen and firearms, so we are ready to leave these two." ”

Guo An nodded again and again, "Your Highness is wise, Weichen has this intention!" ”

"Weichen was still worried, although there are many craftsmen in my Yanwang Mansion, they are all old, and they will only follow the rules, and there are no craftsmen like Tao Wanhu.

Unexpectedly, Tao Wanhu actually sent his youngest son and the youngest disciple.

In this way, these two must not be let go back! ”

Zhu Di nodded and said, "Let's look at that Tao Yiping, he is also a flexible person. Moreover, his family history, as long as he can be sincerely loyal to us, he can take over Xu Yun in the future and work for the work! ”

Guo An said quietly: "Your Highness, since he wants to learn the way of a craftsman from Weichen, he must be loyal to His Highness." Moreover, he is a vassal of the Yan Wangfu for life! ”

Zhu Di looked at Guo An in surprise.

Guo An realized something, and hurriedly smiled, "Of course, if Your Majesty and His Royal Highness the Crown Prince ask for this person, he can leave!" ”

"Yes!"

Zhu Di nodded slightly.

Following.

Zhu Di summoned Tao Yiping and Yang Ting over.

"Guo Qing's way of craftsmanship is to inherit the history of Guo Taishi in the former Yuan Dynasty, and learn from the mountains and the sea. Guo Qing is willing to let Er and the others learn from him.

However, the things developed by Guo Qing are all the top secrets of my Yan Wangfu, and the two of you will inevitably come into contact with the secrets of my Yan Wangfu if you follow Guo Qing to learn.

Therefore, the two of you need to enter my Yanwang Mansion! ”

Tao Yiping and Yang Ting hurriedly nodded, "The grass people are willing. ”

Then, he saluted Guo An respectfully to the side.

"Students Tao Yiping and Yang Ting meet Guo Shi!"

Guo An waved his hand to stop, "Slow down!" ”

"I don't know what else Guo Shi wants?"

Tao Yiping was stunned for a moment and hurriedly asked.

Guo An stared at Tao Yiping and Yang Xian tightly, and said slowly: "The two of you can think clearly, learn from my knowledge, and you will be the ministers of the Yan Wangfu, you need to fulfill your duties and be loyal to the Yan Wangfu, except for the permission of the Yan Wang, you must not reveal the slightest to the outside world." ”

"A vassal of the Yan Palace?"

After Guo An's reminder, Tao Yiping and Yang Ting also reacted, wouldn't this mean that they would serve the Yan Wangfu for the rest of their lives?

Suddenly, I fell into a dilemma.

When they came, they just wanted to learn the skills of craftsmen from Guo An, and they were not prepared to be a subordinate of Yanwangfu for the rest of their lives.

Moreover, their pottery family is also the pinnacle of craftsmen in Yingtianfu.

How can you stay in the Yanwang Mansion forever in order to learn a knowledge?

Thinking about it, Tao Yiping and Yang Ting glanced at each other, but they wanted to refuse politely.

Guo An continued: "Although we are not sages, the science of physics is also broad and profound, and it will take at least ten years to understand it.

In addition to staying in the Yanwang Mansion, you have nowhere to go to study. ”

"The science of physics?"

Tao Yiping and Yang Ting couldn't help but be a little curious.

"The principle of the operation of all things is physics!" Guo An said slowly.

Tao Yiping and Yang Ting were suddenly full of surprise, and then looked at Guo An with doubts in their eyes.

Guo An smiled lightly, "Physics, it's easy to say, it's simple. But it's hard to say, and it's extremely difficult.

Just like glass, clear glass can be calcined.

However, even if they put transparent glass in front of two people, or even thousands of craftsmen in the world, can they imagine that transparent glass can be used to grow vegetables in the cold winter?

In addition, the secret recipe for cement is extremely simple, some stones can be ground and calcined for a few hours to obtain cement.

But if we hadn't developed it, who would have thought of it?

The two of them have also seen the process of cement building houses, and I wonder if they have ever thought about why cement can become as hard as a hard stone again after being mixed with water.

……

Why can fire burn? But if you put a torch in an airtight house, the torch will go out automatically?

Why do birds in the sky fly?

Why can't a person fly after making two wings out of feathers?

Why ......"

As Guo An asked more and more questions, Tao Yiping and Yang Ting's eyes widened and widened.

"Cao Min and others have also had doubts about these problems, but they can't study them, is it possible that Guo Changshi knows about them?"

Guo An's face was full of confidence, "We all know it." ”

"Otherwise, why can we calcine cement and grow vegetables in the cold winter?

And, to tell you the truth, we hated the pirates, and a few months ago we built a very spacious gunpowder workshop out of cement, preparing to develop an incendiary bomb.

Just throw it on the ship, and unless the bomb burns out, it will be like the poison of the tarsal bones, which will never be extinguished, and all the Japanese will be burned to ashes......"

"There is such gunpowder?"

Tao Yiping and Yang Ting were attracted again, and looked at Guo An with expectant faces.

"It's nature."

Guo An nodded, "Gunpowder and firearms are also part of physics, and we also have some understanding of gunpowder." ”

"Dare to ask Guo Changshi, that kind of gunpowder has already been developed?" Tao Yiping asked.

"I don't have it!"

Guo An shook his head with a regretful face and said, "Although we know some formulas, we also know how to develop them.

However, the two of them should also know that as the head of Yanwang's Mansion, we are busy with affairs, and we have no time to experiment over and over again.

And those craftsmen in Yanwang Mansion, although they all listen to our words, but the things of gunpowder are also talented, and they ...... Alas......"

Tao Yiping and Yang Ting's faces were full of struggle.

As the son and disciple of Tao Wanhu, they greatly admired Tao Wanhu, who could wait for the emperor to reward Wanhu with the skills of craftsmen.

Naturally, they are also obsessed with craftsmen, especially gunpowder and firearms.

Guo An continued to say in a demagogic tone: "Before, I have also seen things such as fire systems, general cannons, and bowl mouths, and we always feel that these firearms are extremely powerful, but they are not suitable for hitting the enemy, and in terms of their flexibility, they are far inferior to bows and arrows and crossbows.

What if the fire system was reformed?

Wouldn't it be easier to aim even if you just casually put a sight or aiming device on the fire system and the general's cannon? 100 shots?

Furthermore, if you can reduce the size of your hand, for example, to the size of your palm, you can carry it with you......

Also, the thistle terrestris can only burn, so why can't it explode? If you fill it with the right amount of gunpowder, more powerful than a bomb, and throw it into the ship of the pirates......"

"Puff~"

Tao Yiping and Yang Ting did not hesitate at all, and knelt directly in front of Guo An.

"Meet Master Guo!"

"The two of us are willing to worship Guo Changshi as a teacher, and we will always be a vassal of the Yan Palace."

Guo An hurriedly helped the two of them up with a gentle face, and said, "We are almost the same age as the two, and we must not be the two masters!" ”

Tao Yiping and Yang Ting's faces were anxious.

Guo An continued: "However, if you don't dislike it, you can call us masters.

We can't guarantee anything else, but we have at least hundreds of ideas on firearms and gunpowder, which is enough for two people to study for a lifetime! ”

"I've seen the master, but I didn't expect the master to be so knowledgeable?"

Tao Yiping and Yang Ting were surprised.

"It's nature!"

Guo An sighed, "It's a pity, we don't have the skills, we have to make a lot of money for Yanwangfu, and take hundreds of thousands of people in Beiping Mansion to make a lot of money together."

Otherwise, we would have gone into the workshop and studied them one by one. ”

"Please rest assured, Master, if he has any ideas, he will leave them to the two of us. The two of us will definitely study it seriously! ”

Tao Yiping said solemnly.

"Very good!"

Guo An's face was full of joy, "The two of you have this ambition, although we don't dare to guarantee that we can let the two of you be the marquis of ten thousand households, but as long as our Yan Wangfu is strong in the future, and we accidentally defeat the Goryeo Kingdom or our country, we beg His Royal Highness the King of Yan...... No, please ask His Royal Highness King Yan to ask His Majesty to give the two of them a feud in the surrounding small countries.

Let the virtuous names of the two surpass Tao Wanhu! ”

Tao Yiping and Yang Ting were full of excitement, and then hesitated.

"Master, is that really so?"

Zhu Di said helpfully: "Why can't this be? ”

Tao Yiping said: "Your Majesty seems to be reluctant to conquer those vassal states. ”

Guo An sneered and said, "That's because Your Majesty thinks that using the imperial army to conquer those poor and small countries, even if they are attacked, they won't get much money, and it's not worth it."

However, if the firearms of my Yan Wangfu are dozens of times more powerful, can an army of 10,000 capture those vassal states?

His Majesty will definitely reward him for such a great achievement.

Moreover, the heavens and the earth are so big, the two of them must not be limited to this corner of the Ming Dynasty......"

Tao Yiping and Yang Ting were completely fooled by Guo An, and they bowed to Guo An again with excitement on their faces.

"Master, don't worry, the two of us will do our best!"

"Very good!"

Guo An was overjoyed and said, "We will take the two of us to the gunpowder workshop in a while, and tell you how to develop that kind of incendiary bomb."

In addition, when the two of you want to be irritated by the study of incendiary bombs, you can also go to the bomb fire thistle terrestris, or study the small fire system with the size of a palm......"

"Yes, Master!"

Tao Yiping and Yang Ting responded, and they couldn't wait to get up and wanted to go to the gunpowder workshop.

Guo An hurriedly stopped, "The two of you went to the gunpowder workshop this time, and we are worried that the two of you will be concentrating on studying gunpowder and will not be able to extricate yourself."

Lest and other family members are worried, it is better to write a letter to the family first, explaining the situation. ”

"It's still the master's thoughtfulness."

Tao Yiping and Yang Ting didn't notice anything wrong, and once again thanked Guo An respectfully.

And at this time, Zhu Di had already signaled Ma He to bring the pen, ink, paper and inkstone.

So, Tao Yiping and Yang Ting each wrote a letter.

Then, he seriously sealed it with fire wax and handed it to Guo An.

Guo An handed it over to Ma He, and asked Ma He to instruct the guards of the Yan Wangfu to send the letter out.

Tao Yiping and Yang Ting couldn't wait to look at Guo An.

"Let's go!"

Guo An got up, said goodbye to Zhu Di, and took the two to the gunpowder workshop.

At this time, Tao Wanhu, who was far away in Yingtian City, didn't know that he just wanted his young son and his children to travel to Beiping Mansion to see that there is a sky outside the sky and there are people outside the world.

Then, go back and follow him to study firearms.

This time, he gave his young son and closed disciples, who had been carefully taught for more than ten years, to King Yan!

Along the way, Tao Yiping and Yang Ting also wanted to ask Guo An for some knowledge about gunpowder.

However, Guo An directly stopped it, and passers-by were easily listened to by outsiders.

Thinking of His Majesty's strict control of gunpowder and firearms, the two of them didn't dare to ask more.

When they got out of the carriage and saw a gunpowder workshop that was heavily guarded, but inside was all sorts of novelties they had never seen before.

Tao Yiping and Yang Ting stared at them directly.

Under the leadership of Guo An, I understand the same!

The more I knew, the more glad I was that they could enter the Yanwang Mansion!

The gunpowder workshop here is a paradise for these craftsmen!

……

(End of chapter)