I am the cook, but I am Li Er's son-in-law

The speed of the train was not very fast, and there was a bang bang bang bang, but it derailed halfway before reaching the other end of the alley.

Perhaps it was the enchanting figure of the stone standing on the street corner that attracted its attention, causing it to break free from the rails and rush towards it fiercely.

There's a bang—love rips the train apart, and there's no good end for anyone who goes off the rails.

"Why is this happening again?" Li Lizhi tugged at her hair, feeling a little anxious.

How to keep the train from derailing is a difficult problem.

Many people think that this is a very simple matter. Aren't the wheels of the train stuck on the rails?Li Lizhi and the others thought so too at first.

then…

I didn't run very far that day, and the train couldn't stand the loneliness after a while.

The card cannot be stuck, and the kinetic energy of the train is so great that it is by no means able to get stuck with a small card wheel.The raised part of the train is called the rim.

The rim is generally not in contact with the rails, and it is only used as a last line of defense to prevent the train from derailing-although it may not be so useful.

In fact, it is the wheels of the train that guarantee that the train will not derail.

The wheel used by the train is different from ordinary wheels. It is not a sphere or a cylinder, but a cone.

Just like a tumbler, even if it is slightly tilted, the center of gravity will not change, so it is difficult to get out of the way.

Yin Xuan did not tell them this knowledge.

This kind of thing has a lot of uses, it can be regarded as a little knowledge with a wide range of applications, but it is easy to figure out. I told them myself, and the impression was not so deep.

In the future, in case of any other occasions where this knowledge is used, it will be difficult to remember immediately.

Anyway, half a year, slowly tossing.

The children lying on the wall and watching laughed.

Li Lizhi was angry and annoyed, and ordered people to put out the fire, pour water to cool it down, and then move it back. She couldn't believe it, and she couldn't handle a wheel with her sisters.

They still didn't get it done.

On the contrary, there was a scholar in the restaurant. After hearing about this incident, he gave him an idea—he was one of the few scholars in Tongfu Restaurant who were not interested in imperial examinations, but interested in the knowledge taught by Yin Xuan.

After studying for half a month, he came up with a plan and handed it to Yin Xuan tremblingly.

"Mr. Zhengyang, I heard a few people talk about the derailment of the train a few days ago." The scholar swallowed hard and spoke cautiously, "So I made my own opinion and researched it myself. "

Yin Xuan opened it and took a look.

There are neatly drawn three views inside, as well as some data such as angle, weight, and mass.Of course, the most eye-catching thing is the shape of the wheel - tapered.

"You researched this yourself?" Yin Xuan was a little surprised, with a raised tone.

This made the scholar heave a sigh of relief. Hearing the store's tone, there seems to be no problem with his research?But he nodded cautiously.

Li Lizhi could also hear the joy in Yin Xuan's words, trotted over from her desk, put her head on Yin Xuan's shoulders, put her two heads together, and looked at the blueprint.

She didn't see the use of this change.

Just...a different shape?
During this period of time, they changed a lot of materials, and even used rubber, but it didn't work at all. Now they are wondering if it's not the problem of the wheels, and they plan to make a groove on the rails.

"Husband, is this really useful?" Li Lizhi turned her head, smacked Yin Xuan's face, and asked softly.

The scholars who had delivered things quickly lowered their heads, not daring to take a second look.

I feel resentful in my heart, bullying myself for not getting married!

When I get married, I bring my daughter-in-law to the restaurant to eat every day. I can't eat this dog food by myself. If I want to eat it, everyone can eat it together!

"You'll know if you try it." Yin Xuan handed the document to Li Shu who came over, smiled lightly, turned his head to look with burning eyes, "What's your name?"

The scholar made a bow and replied: "Student Xu He, Lord Zhengyang will call me for a long time."

Xu He...

Yin Xuan thought for a while, but he didn't have this name in his memory. It seems that he was just an ordinary scholar in Datang?Also... If someone was famous, he would have been dragged out of the academy long ago.

"Jiuan." Yin Xuan called his name.

Xu He responded, his body stiffened slightly.

"Have you thought about coming over to my subordinates to find an errand?" Yin Xuan asked.

Xu He was stunned for a moment, a huge surprise poured into his head, and the rapid secretion of dopamine made him feel dizzy, and he didn't reply for a long time?
Yin Xuan hummed suspiciously.

Only then did he come to his senses, and nodded again and again: "Yes, of course!"

Scholars all over the restaurant cast envious glances - another person who can work under Yin Xuan's command, and he is still a man, not a pretty girl.

Could it be that……

Has Zhengyang revolutionized sex?

"I have a research institute in my hand." Yin Xuan rubbed his hands, and said slowly, "You can go there, and I will give you a salary of ten per month."

"The direction you are responsible for is to study mechanics."

Ten times a month!

Everyone gasped, and the envy in their eyes became more intense. This treatment... is perfect!Only worse than Xue Rengui.

And what he did was what he had done before.

Xu He was taken aback, his cheeks were flushed, he quickly shook his head and said: "This... Mr. Zhengyang loves you very much. The study of mechanics is something that students love. It is a happy event to be honored by Mr. Zhengyang. Take this ten consistent salary."

"One month, or [-] Wen is enough... If, if you can eat and drink in the restaurant, it would be good if you don't need salary."

His greatest goal is to be able to eat and drink in Tongfu restaurants for the rest of his life.

Yin Xuan waved his hand and smiled slightly: "You are worthy of this salary, and you have to get what you deserve. I give you these... I am also telling others that a person like you who has made research results should enjoy the most Good treatment."

Xu He was taken aback, and understood Yin Xuan's meaning - this is the piece of wood that he used as Shang Yang, nodded, no longer evasive, and agreed, but felt a little hot.

The eyes of the group of scholars in the restaurant became even hotter.

Looking at Xu He, many people are also eager to try.

Yin Xuan lightly tapped the table again, stood up, and said loudly: "If you want to join my research institute and work for me, as long as you can publish an academic article in my magazine, you can get five consecutive monthly prizes." wages."

"If you are selected as the essence, you can get a salary of ten per month."