Yan Bei smiled: "The principle is very simple, from this experiment, we can know that the weight that an object can bear is not only related to the material and weight of the object, but also related to the shape. ”

"The reason why a wavy bark bridge can bear a lot of weight is that the wavy shape can be seen as a lot of triangles, and the triangle is the structure that can bear the most weight."

"Then dare to ask the Queen Mother, what is a triangle? Why is a triangle the most weight-bearing structure? Yougong asked curiously.

However, his expression was full of apprehension, and he was a little afraid that he would be punished for the following crimes.

Yan Bei didn't punish him, not only would he not praise this palace man who dared to ask questions, and then he explained to him what a triangle was and so on.

At the same time, he also took this opportunity to popularize some simple physics knowledge to the palace people.

Although Yan Bei did not learn the knowledge of mathematics, physics and chemistry in this retreat, she herself was born in science, and she knew these simple basic materialization knowledge well, so she naturally did not have to waste money.

However, what she is best at is sewing corpses or something, and there are no corpses to sew in the Qin Dynasty for so long, so she has to embroider flowers every day to relieve her hunger.

In a blink of an eye, under the active desire of all the palace people to seek knowledge, the open class in the side hall has been held for three months.

In these three months, Yan Bei's basic teaching progress has reached 50 percent, and during these three months, she has personally taught everyone to read and write, and at the same time imparted the knowledge she knew.

From agriculture to astronomy, as long as she knew, she would teach it to the palace people.

Of course, in the face of such a selfless gift, there is no one in the palace who can't learn well, and comes to class early every day to review, and writes and draws on the stone slab with a branch dipped in water, so as to ensure that he can get a compliment from Yan Bei.

In such a positive learning atmosphere, Yan Bei was also selected by Yan Bei for the first batch of key cultivation objects, a total of twenty people, all of whom were palace people with outstanding talents in all aspects.

Yan Bei stipulated that they had to come to class every day, and they had to give these twenty people special tutoring after class, and for this reason, he also assigned the work of these twenty people to other people to do, as long as they concentrated on studying.

In this way, after three months, Yan Bei got the first batch of counselors, and she no longer had to attend classes in person, but these twenty people took turns to teach.

First, to deepen their impression of what they have learned, and secondly, to prepare teachers for the next teaching expansion plan.

Everything was carried out in an orderly manner according to Yan Bei's plan, but the fact that the public lectures were held and the Empress Dowager of a country was still the teacher herself quickly attracted the attention of the outside world.

There is no impermeable wall under this sky, Yongdu is only more than 20 miles away from Xianyang, and in the first month of the teaching, Xianyang got the news, and also sent the minister to come and inspect it in person.

It's a pity that he didn't find anything, so he was put down and carried back to Xianyang by Yan Bei with a fist.

However, Xianyang's side didn't seem to want to give up investigating, and sent a lot of people over in the open, but strangely, they only secretly monitored all this, and no one came to stop Yan Bei's action.

It seems to want to see what she's going to do, so as long as it's under control, I won't do anything to her.

In the blink of an eye, October arrived, the weather cooled down, and the first snow of winter followed.

In order to prevent the big guy from freezing, Yan Bei opened the main hall and let Liangyi burn the brazier in it, and called the palace people to study in the main hall.

Yan Bei didn't feel how cold it was in this winter, he sat cross-legged on the cushion with a bandage, embroidering those mysterious runes while giving advice to the twenty key students in the hall from time to time, and it seemed that life was leisurely.

was embroidering, the quiet hall sounded the sound of hurried footsteps, Sang ran in with a sweaty face excitedly, causing everyone in the hall to raise their heads and look at her.

Seeing this, Liang Yi, who was squatting in front of Yan Bei and playing with the brazier, immediately frowned, and scolded:

"What a system! So flustered, so unruly! ”

Hearing this reprimand, Yan Bei didn't stop it, because Liangyi's reminder was not wrong.

There are ancient rules in this ancient world, and these palace people can be presumptuous in front of her, but they can't forget the rules that should be there, otherwise it will be a capital crime in front of another person.

She didn't want to kill these palace maids and eunuchs because of her special case.

Apparently, Sang also realized that he was too presumptuous, and hurriedly knelt down to ask for forgiveness, but the excitement in his eyes was obviously more than fear.

Yan Bei put down the silver needle, raised his hand to signal her to get up, and asked calmly, "Why are you so flustered?" ”

As soon as he heard Yan Bei ask, Sang could no longer suppress his excitement, took several deep breaths, and then laughed loudly:

"Queen Mother, the paper is made!"

Yan Bei was stunned when she heard this, but she had seen a lot of things like paper, and she had already known that it would be successful, so she still said calmly:

"Your Majesty's birthday is coming, so let's take this as a gift."

As he spoke, he turned his head and commanded, "You pick a few students who know how to make paper, and send them to Your Majesty together with the newly made paper, and you will ...... It was a birthday gift from the mourning family to him, wishing him a happy birthday. ”

I hope this can brush up some favorability, at least the motherhood value will not be negative anymore.

"Whoa!" Liangyi responded excitedly, and immediately went to see the newly baked paper with Sang.

Seeing that the two of them left excitedly, the palace people in the main hall couldn't sit still, and looked at Yan Bei with expectant eyes one by one, just waiting for her to speak.

Yan Bei was secretly amused, afraid that they would endure hardship, so he waved his hand and said, "If you want to go and see, you can go, I happen to be quiet alone." ”

"Thank you for the grace of the Queen Mother!"

After a loud thank you, in less than three seconds, the entire hall was empty, leaving only Yan Bei alone, stunned and helpless to support his forehead in the empty hall.

There was a light snow in the sky, and there were always a lot of mischievous people running into the temple, and it melted in an instant.

Yan Bei looked at the melted snowflakes in a daze.

It's so cold, and I don't know what happened to Changsheng, but his side is by the sea, so he shouldn't feel cold, but the cheap son in Xianyang, I don't know what it looks like.

Yan Bei sighed, thinking of the reluctance he had been giving up after leaving, and thinking of the faint gaze he felt when he left Xianyang, somehow, his heart hurt slightly.

In fact, no matter what, in front of his mother, Ying Zheng is just like Changsheng, just a child who longs for all the attention and love of his mother.

It's a pity that Zhao Ji couldn't give him these things, not only didn't give them to him, but also hurt him deeply with his love for himself, and I don't know what kind of uncomfortable feeling it was.

I only hope that what she is going to do can make up for the pain caused by that injury......