Material Empire

When Qin Hai was observing Cui Xuezhe, Cui Xuezhe was also observing this future uncle. When Qin Shan just told him that her brother was going to meet him, he was somewhat nervous. The reason for his nervousness was not that he had any shortcomings, but that he was worried that it would be difficult for workers in a small factory like Qin Hai. deal with.

People often say: in the eyes of people in the capital, everyone is a foreigner; in the eyes of people in Pujiang, everyone is a countryman; Divided into edible and non-edible...

As a child who grew up in the capital, Cui Xuezhe's understanding of outside places is very superficial. Although most of his college and postgraduate classmates are foreigners, he feels that they belong to a small group of well-educated people from other places and cannot represent real foreigners. In his mind, outsiders, especially workers in small counties, should have a rough personality and have some original living habits.

Yesterday, after arranging the next day's meeting, Cui Xuezhe didn't fall asleep all night, using his head that is good at making scientific reasoning, he simulated countless plans for meeting Qin Hai: In case Qin Hai has prejudice against scholars what to do? What if Qin Hai swears all over his mouth? What if Qin Hai wants to help him find a job in the capital...

He couldn't even tell his parents about these worries. He once told his father about his views on foreigners, but his father taught him a lesson, saying that he was too divorced from the masses and needed to go to the poor and lower-middle peasants to receive some re-education. He knew that his father had always respected ordinary workers and peasants in the local area, and because of this, he was not at all worried that his parents would dislike Qin Shan's family background. It's just that it's easy to talk about it, but when we meet each other, if the uncle Qin Hai behaves too badly, will the parents be annoyed?

During the time we met just now, Cui Xuezhe finally felt at ease. Qin Hai, who was wearing blue work clothes, looked like a simple and honest worker, and he was quite polite in his dealings with others, obviously well-educated. He shook hands with Cui Xuezhe very well. He was neither timid and unaccustomed to shaking hands with others, nor was he in a rough manner that would hurt the other person's hand as soon as he came up. From this small detail, Cui Xuezhe developed an infinite affection for Qin Hai.

Hearing Qin Hai's question about his major, Cui Xuezhe quickly replied in a low-key manner: I'm doing material science research, and I focus on relatively small-scale metal materials.

The scale is relatively small? Qin Hai felt a little strange about Cui Xuezhe's answer, because it really didn't sound like a professional wording.

Well, it's a very small material...Let's put it this way, don't you use the unit 'silk' in the machinery factory? The scale of the material I research is equivalent to one thousandth of a silk, or even It's one in ten thousand... Cui Xuezhe racked his brains to explain.

Haha! Qin Hai finally understood that the prospective brother-in-law was worried that his education was too low and he couldn't understand their technical terms, so he was introducing him in common terms. The 1 wire mentioned in the factory refers to one hundredth of a millimeter, which is 10 microns, and one ten-thousandth of a wire is 1 nanometer. In other words, my prospective brother-in-law is researching nanomaterials.

You're talking about nanometers, right? Qin Hai told the answer for Cui Xuezhe, remembering his sister's advice to him, he tried to cover up another sentence: I heard the technicians in the factory talk about this kind of thing, what is it? Nanotechnology is very profound.

That's right, what I'm researching is nanomaterials. Cui Xuezhe replied happily, Brother Qin really likes to study, and he even knows about nanometers.

Hearing Cui Xuezhe praised Qin Hai, Qin Shan desperately suppressed her laughter, her face turned purple. In Cui Xuezhe's mind, Qin Hai is just a graduate of a technical school. Knowing the concept of nanometers is indeed not easy, and it can be regarded as a relatively positive performance. But Qin Shan knew that her elder brother's accomplishments in material science were far beyond Cui Xuezhe's. The current research on superconductivity that Ning Jing is doing, as well as Qin Shan's own research on chemical processes, have all been taught by Qin Hai. Cui Xuezhe praised Qin Hai's love for research because of the word nanomaterials, and he didn't know whether to praise Qin Hai or derogate Qin Hai. All in all, this is too ridiculous.

But at this time, she couldn't speak out to remind her boyfriend, because she deliberately wanted to keep Qin Hai's identity a secret, and this kind of oolong was the result of her own making. Even if she wanted to reveal it, she would have to wait until today.

However, Qin Hai became interested in Cui Xuezhe's research direction. He asked with a smile, There are also many kinds of metal nanomaterials. Which area do you specifically research, Xiao Cui?

Cui Xuezhe didn't dare to underestimate Qin Hai anymore, he replied cautiously: The research I'm doing now is about the magnetic properties of nanoscale pure iron, does Brother Qin know anything about this?

I read some in a book. Qin Hai said. In his previous life, he was a postdoctoral fellow of the Institute of Materials Science and Technology, so when he heard that Cui Xuezhe was a Ph. The Institute of Materials has accumulated many years of research on nanomaterials. In his previous life, Qin Hai has a very good relationship with several experts in nanomaterials research in the Institute, and he has also done some research work in this area. Hearing Cui Xuezhe talk about professional matters now, Qin Hai felt a little itchy.

The magnetic properties of nanomaterials have a great relationship with the particle size. As the particle size decreases, the magnetic domain of the material changes from a multi-domain structure to a single-domain structure, so that the mode of magnetization reversal changes from domain wall to magnetic domain rotation, which leads to a substantial increase in coercive force, isn't that true? Qin Hai said with a smile.

Ah? Cui Xuezhe was completely dumbfounded, staring at Qin Hai with his eyes open, his mouth wide enough to fit a fist into. Qin Hai knew that the concept of nanomaterials was more or less acceptable to Cui Xuezhe. This discussion on magnetic domains and coercivity had completely subverted Cui Xuezhe's image of an ordinary young worker. When did a young worker in a county know so many things, this is clearly... the content that needs to be talked about during the doctoral defense, okay?

Brother! Qin Shan was in a hurry, and if Qin Hai showed off again, he would be completely exposed. With an idea, she ruthlessly tugged at Qin Hai's lapel, and scolded: Brother, did you read two articles from me yesterday, and recite them today to bully Xue Zhe? The things you said, you You don’t even understand yourself, do you?”

Of course I don't understand, that's why I asked Xiao Cui to guide me. Xiao Cui, I read the passage just now in a book written by Xiao Shanna, and I recited it because it was fun, but the meaning , I don’t understand at all, can you explain it to me?” Qin Hai smiled. Of course, he didn't just say the above words when he was full and free. He wanted to use these contents to test Cui Xuezhe's knowledge and see if this doctor is a fake.

Regarding Qin Hai's explanation, Cui Xuezhe could only half believe it. The reason for doubt is naturally that Qin Hai memorizes such a passage is a bit unbelievable. This kind of academic judgment will be mispronounced by ordinary people when they read it in a book. There is no one who can memorize it like Qin Hai. As for the reason for believing it, it comes from Qin Hai's education background and identity. If Qin Hai didn't read these words from books, then Qin Hai is simply a monster.

Of course he didn't expect that Qin Hai was indeed a monster, and a huge monster at that.

The coercive force of a magnetic material is the external force required to change its magnetism. The paragraph Brother Qin memorized just now happens to be the content of our current research. We have measured that the coercive force of pure iron in block form is only 20 to 100 amps per meter, but when pure iron is made into ultrafine particles of about 16 nanometers, the coercive force can reach 80,000 amperes per meter, which has permanent magnetic properties. We are trying to prepare smaller iron ultrafine particles, hoping to obtain coercive force New materials with stronger power. Cui Xuezhe said to Qin Hai seriously as if he was discussing with his colleagues.

Really? That's really amazing. Qin Hai said with a haha.

At this moment, there was a sound of footsteps outside the door, Cui Xuezhe's eyes lit up, he stood up and said, My dad is here, I'll go meet him.

Qin Hai and Qin Shan also stood up, Cui Xuezhe went out of the room, and led a middle-aged man in after a while. With a shy smile on his face, he pointed to Qin Hai and Qin Shan and introduced to his father: Dad, let me introduce you. This is Qin Shan, and this is Qin Shan's brother...

It's you... Cui Xuezhe's father looked at Qin Hai and was stunned for a moment. He raised his finger and pointed at Qin Hai, not knowing what to say.

Qin Hai went forward with sharp eyes and quick hands, bowed slightly to Father Cui, and said, Uncle, hello, my name is Qin Hai, and I am a worker from Qingfeng Agricultural Machinery Factory in Anhe Province. Nice to meet you...

As he spoke, he gave Cui's father a meaningful look, which meant to tell him not to cheat.

Anhe, Qingfeng Agricultural Machinery Factory, this... oh, yes, welcome, welcome, comrade Xiao Qin to Beijing. Cui's father is also a smart person, and he understood Qin Hai's hints at once. Astonished, he laughed and accepted Qin Hai's self-introduction, and at the same time stretched out his hand, and shook Qin Hai's hand tightly.

Cui Xuezhe is really a nerd. Standing aside, he didn't see the fluctuation of Qin Hai and Qin Shan's expressions at this moment, let alone understand Qin Shan's supercilious look at him. After arguing for a long time, he was the only one in the room who was kept in the dark, because both Qin Hai and Qin Shan knew his father, and his father had been quite close to Qin Hai and Qin Shan for a long time. familiar.

This middle-aged man, whom Cui Xuezhe referred to as an ordinary official, was none other than Cui Hongchun, the vice minister of the Ministry of Agriculture.