In China's thousands of years of history, there are countless technologies that have been lost.

One of the reasons is naturally because of the craftsmen's self-cherishing broom.

This is also an old tradition of Chinese, not only skilled craftsmen, including literati, military generals, etc., so in the martial arts more than a thousand years later, most of the masters will leave a hand on the apprentices, and they always say that they want to assess the apprentices' character or something, and you can't have half a complaint......

What nonsense!

In the eyes of the ancients, this is all a matter of course, but it is too unfair to look at it from Li Yuanjia's eyes.

In fact, the master-apprentice relationship is quite serious in Chinese culture.

Teacher, preach and teach to solve doubts.

In fact, in ancient times, the word teacher was basically not used, because the different status of teachers and the institutions they were in were called teachings, sacrificial wine, doctors, masters, mountain chiefs, teachers, and so on. It was not until the introduction of Western education and the establishment of new schools in the Republic of China era that teachers became a conventional title.

But in ancient times, "teacher" meant a lot of things.

The bond between the teacher and the disciple is second only to the father and the son, the monarch and the minister, and is extremely strong under the various constraints of the world, and if the student's parents are gone, the teacher can even replace the role of the father to some extent. For example, in martial arts, the family affairs of many young heroines are decided by the master, and individuals cannot resist.

The tragedy of the white-haired witch is actually the embodiment of this relationship.

Anyway, in the traditional master-apprentice culture, it is a matter of course for the disciples to serve the master, and this is still the master-apprentice culture of the "upper" society, if it is placed in the "lower" society, such as carpenters, blacksmiths, etc., the apprentices almost have to eat and live in the master's house, do not get a salary, just eat and live, and work hard every day......

In this case, in order to allow the apprentices to work as free laborers for a few more years, the masters often have to deliberately hide their true skills. Later, I really couldn't continue to consume it, and I often had to keep one hand and hand over the so-called pressing box to my own son. Even if you don't have a son, you will give it to your son-in-law, or the only disciple you like.

Tell me, isn't that?

Not to mention that this bad habit hinders the development of technology and hinders the progress of science and technology, even if those apprentices have worked hard for him for several years, he will not be treated like this, right?

Therefore, for this traditional teacher-student relationship, Sun Peng is really unaccustomed to it.

He still prefers the new school that was more than a thousand years later, where the teachers teach the basics according to the syllabus, and everyone learns exactly the same, and if he wants to study more deeply, he needs to put in more effort, not because of his identity and status.

That's why he built a primary school in King Han's Mansion and asked Ma Liang to teach those teenagers.

A small attempt, even if it is a bit of a big investment for those dozens of students, for example, the pen, ink, paper and inkstone consumed every month is a large expense, which makes Li Yuanjia feel quite distressed, and he can't take care of it.

The primary school hall is like this, and Chen Mu's skills are naturally no exception.

Under Li Yuanjia's strong orders, whether it was Chen Mu, Wang Pu or Niu Da Niu Er, they never dared to hide it, but taught all their skills to others without reservation.

After all, they are all from the Han Wangfu, what is the technology?

But slowly, Li Yuanjia also discovered the limitations of this kind of professor—in fact, it is also the limitation of ancient technology exchange and dissemination, that is, it relies too much on hand-in-hand professors.

If you don't learn from the master, you won't learn anything!

This is not surprising, because Li Yuanjia once read a book, which is Song Yingxing's Heavenly Creations, an encyclopedia of Chinese craftsmanship in the seventeenth century. In the history of China, this book can be described as a great prestige, almost representing the highest achievement of ancient science and technology books.

Then after reading it, Li Yuanjia was quite disappointed.

Because in this book, all the records are too brief, and there are even many words that are the same as in the recipe - "a little", "moderate"......

And one of the things that made Li Yuanjia speechless the most was the drawings of those objects.

How so?

The structure can be seen roughly, but one is rough, and the other is the lack of fine measurements, so if you want to build something from it, I am afraid you need a senior craftsman, and it must be a certain talent!

This is still the famous "Heavenly Creation", as for other similar books......

So even if Chen Mu and Zhang Wan both had a difficult look on their faces, Li Yuanjia was still unmoved, just waved his hand lightly and said: "In this way, in the future, all the workshops belonging to the palace must have a craftsman who can draw...... Well, it has to be able to draw the kind of picture I said! And my requirement was not only to draw it, but also to draw it in a similar and detailed enough way that the other craftsmen would immediately understand how to make it! ”

"Goo-dong!"

After hearing his words, Chen Mu, Zhang Wan and others swallowed and spat at the same time, and their faces became quite ugly.

Just now, they weren't taking it too seriously.

Because although the painting skills created by the king are very different from the painting skills that are circulated in the world, everyone has learned to use a ruler and a man with a scale, and the simple drawings are barely able to draw alive, and the slightly more complicated ones are not still the little guys in the school can look forward to?

Overall, the difficulty is not great.

But now listening to Li Yuanjia say this, all the drawings must be drawn clearly, so that people can do it at a glance?

This difficulty is definitely not small!

Don't even think about it, let alone Chen Mu, who was already counting on others, even Wang Pu and Zhang Wan's faces became ugly.

And......

There seems to be something else in the king's words!

Let other craftsmen see it?

And after they watch it, they will soon be able to learn to make it?

What does this mean?

After looking at each other, Chen Mu, Zhang Wan, and Wang Pu's faces changed at the same time—invariably, they all remembered the rollover drawings that the king had dedicated to His Majesty before!

Those drawings definitely meet this standard!

Although there are very few people who can read this kind of drawing, so that the use of the imperial court is not very good after it is triggered, and in the end they can only count on the dump workshop outside Chang'an City to build a large-scale dump, but they all know that the court has sent a lot of carpenters to learn how to understand these drawings, and will send them out one after another in the future to teach the methods of making dumps in various states in the world!

That is, the production of the rollover will no longer be a secret.

But after all, it is a rollover that is closely related to the world, and it is already dedicated to His Majesty by the king, so everyone doesn't dare to say anything even if they have some opinions in their hearts.

But now, the king asked them to draw everything that the workshop could do in drawings?

At this moment, everyone had a bad premonition in their hearts......