Chapter 160

"Yes, your game is a good game. It sold 500000 copies in three months. It is the fastest game to reach this sales figure in history. It brings fairy entertainment nearly 20 million revenue, but it still can't save fairy's crisis. After all, entertainment is not fairy's main business, and semiconductors are its life -"

The reporter who opened his mouth obviously knew more about Fairchild entertainment, but these were of little significance to Zheng Jianguo. He did not know what semiconductors were, nor did he know that Fairchild, a company representing the development history of Silicon Valley, belonged to the "West Point Military Academy" in the field of electronic technology, let alone the importance of semiconductors in the future.

On the contrary, Zheng Jianguo is very clear about these. He even knows that Intel and AMD, which are unknown at this time, will become global giants in the future, and the founders of these two companies are founded after leaving Xiantong semiconductor. In a few decades, semiconductor will enter thousands of households and turn the earth into a village.

But that's why Zheng Jianguo didn't dare to contact this company too much. The boss of Wang an computer is an authentic American. He studied and worked in the United States and founded a public company 40 years ago. In the past 40 years, he even broke his contact with China, as if those no longer existed when he announced, but even so, he didn't live until 30 years later——

Zheng Jianguo doesn't know how cool this computer company is, but he knows that he can make some money with what he can do at present, that is, the seemingly "lucky" opportunity. By the way, he will buckle an enviable luck on his forehead - so is silver, so is gold.

The former is fan Dailin's discovery of the plot of the harant family, while the latter is a hedging investment that ordinary investors will choose. Of course, this is based on the fact that the price of gold will not fall into a negative number and its own value. The purpose is that Zheng Jianguo vaguely remembers the rise of oil and gold at the end of the Iran Iraq war.

This is also the greatest extent that Zheng Jianguo can achieve. The 16-year-old young man has made a lot of money by investing in Xueba halo. Although this is somewhat beyond people's imagination, it is also in the normal range. However, if he is involved in semiconductors, which are the lifeblood of industry, This risk is countless times greater than the success of the research he is doing: "unfortunately, I have only been in contact with solid-state physics for a short time. My basic physics teacher assigned a semester assignment to do a physics experiment. Can you believe it? You can do a refraction experiment with a mirror and a basin of water -- "

"Isn't that the rainbow experiment?"

A reporter said that Zheng Jianguo tilted his head and raised his eyebrows like you answered correctly: "yes, even the rainbow experiment is OK. Maybe Professor Thomas thinks we go to elective courses just to relax -"

"Zheng, what experiment are you going to do?"

A reporter put away his notebook, asked with curiosity on his face, then looked at the reporter who said the rainbow experiment earlier and said with a smile: "do you also want to do an interesting experiment for junior one or primary school students?"

"No, I'm going to grind stone ink -"

Zheng Jianguo raised his eyebrows and shook his head. The reporters laughed happily: "grindstone Moha, this is also an experiment -"

"Is that the graphite pencil?"

"Haha -"

The reporters dispersed in twos and threes. Zheng Jianguo took his bag into the teaching center and found Belinda, the Secretary of the college, who said something about the morning. She was shocked and said, "you, how do you need the college to help you?"

"I want to live in the college. I can pay."

Zheng Jianguo said, and Belinda immediately nodded and replied, "it's no problem. I can tell the management office. If it costs, I'll tell you how you learned in Massachusetts? Are you sure to get B +? "

"There needs to be an experiment over there. I believe B + is no problem. Please ask you about the residence, Belinda."

Near the summer vacation, most of the courses in the medical school are based on review. Although Zheng Jianguo is somewhat detached, the conditions and requirements given by the school are also equal. You can choose the courses you want to study, but you need to pass the examination of the selected courses.

Fortunately, after Zheng Jianguo entered Harvard Medical School, the difficulty he faced was not the absorption of teaching knowledge by other medical students, but the matching of Chinese in his memory with Chinglish he learned. He passed easily in more than half a year.

Of course, in Zheng Jianguo's view, the main reason why he doesn't feel the learning pressure at the moment is that the reform of medical equipment based on the development of computer technology in his memory has not come yet. Aside from the medical ethics knowledge that accounts for half of his learning, the others are the basic medical courses he has memorized in his mind.

In view of the uncertainty that hasn't appeared in his memory, Zheng Jianguo mostly listens more and watches less when he studies. In addition, he also carries a camera, so he hasn't made any friends after more than a month's course. It's better to know more people than in the elective course of MIT.

After reporting that he was going to move, Zheng Jianguo did not forget the bad words of the two policemen. Fortunately, the place he was going to move was the school, the geographical location did not leave the urban area of Greater Boston, and it was only a 20 minute drive from MIT——

After crossing the Harvard bridge on the Charles River with the car behind closed windows and full of vigilance, Zheng Jianguo entered the territory of MIT. He found the address written in his pocket and touched it in front of teaching building 36. He saw his test partner looking around at the door. After seeing his car appeared, he quickly came to the car: "Zheng, how did you come here, Our laboratory was almost occupied -- "

The speaker is a white toothed brother, who is also a classmate of Zheng Jianguo's elective basic physics course. Brady bins of Harvard Law School and he are the only alumni who reported basic physics in the whole Harvard University, so they became teammates in the examination group experiment at the end of the course: "if Celia didn't report your name, they would be occupied."

Celia Keynes is a student bully majoring in chemistry at MIT. She is only a gifted girl one year older than Zheng Jianguo. She is the only normal one in the three person group for the elective course of basic physics.

After all, compared with their law school and medical school, chemistry is closer to basic physics, but when Zheng Jianguo found a good place to park and arrived at the door of the building, Brady said, "Celia brought her sister and said she was a doctor in solid state physics. Considering that we have a deep knowledge of experiments, it is used to help us carry out experiments -"

"What's deep? Let's just observe it?"

Zheng Jianguo jumped in his heart and said it unintentionally. Then he found Brady full of question marks and said, "observation itself is an experiment. Do you have to come up with the results?"

"Ah? You're right -- "

Brady blinked his big white eyes like a fly and quickly caught up with Zheng Jianguo: "it's good to have a result, isn't it?"

"You don't see what experiment we're doing. If there's a result, it's great."

Zheng Jianguo shrugged and reached the elevator entrance. Brady next to him showed his little face swallowing a fly again. He flew quickly and said, "yes, yes, if we find out, I feel we can change careers -"

"Do you want to transfer from a law school to an engineering school?"

Pretending not to care, Zheng Jianguo stepped into the elevator that had inquired about the terrain. Brady followed him into the elevator, pressed the fifth floor key, looked at the beating floor number and said, "I mean, if you find anything, but it's no problem if you can't turn around. It's a big deal to study two majors at the same time -"

“——”

In his heart, he silently paid the highest tribute to the white tooth brother. Zheng Jianguo remembered that he is now in MIT, the highest University on the tip of the pyramid, and the university that all high school students in the world dream of. Of course, he was not afraid when facing the boastful white tooth brother: "you didn't plan to enter a medical school after graduation --"

"Don't be kidding --"

Brady looked at Zheng Jianguo in shock, shook his head quickly and said, "then I'd rather take another degree in three majors -"

"Ha ha."

When Zheng Jianguo smiled, the elevator door opened. Brady stepped out first and just saw Celia standing in the corridor. She was tall and thin, wearing a sweater, with thick eyebrows and big eyes like boys, more than girls: "Zheng, you finally came. If you don't come again, we should find you."

"Something happened to the residence, but it's all right now. Let's start now?"

Zheng Jianguo's camera and battery pack were thrown in the car. At the moment, he said nothing but his notebook. The white glass door behind Celia opened, and an obviously mature girl appeared next to her: "coming? Let's start when we come? Do you start by grinding graphite? "

"Let's start with grinding graphite -"

Zheng Jianguo looked at the girl and then looked at Celia. The latter said, "this is Ulrika sent by the teacher after learning that we are going to do graphite experiment. She is Professor Thomas's doctor. This year's graduation thesis is about graphite -"

"Chemical reduction and separation of graphite oxide by hydrazine hydrate and divalent iron salt", this is my graduation thesis this year, which has passed the defense. "

Ulrika's tall nose was full of curiosity. She was not interested in the cross-border exploration of the three curious babies: "since the German scientist schafhaeutl in 1840 thought that the interlayer of graphite was combined by van der Waals force with weak force, so the interlayer of graphite can be inserted into small molecules of acid or alkali metal to prepare the interlayer composite of graphite, Over the past century, countless scientists have only obtained a thin layer of graphite with a thickness of 46 nm. You may not know how much 1 nm is the thickness of hair -- "

"One in 60000!"

I don't know when I arrived. Brady raised her hand and said it. Then she found Zheng Jianguo and Celia looking at themselves. She shrugged and said, "why, am I wrong?"

"No, you're right. It's really one in 60000."

Ulrika raised her eyebrows, glanced at the nearby entrance and said, "well, we can change our clothes and enter the laboratory. Brady, will you grind the graphite? It should be ground as thin as possible -- "

"OK, no problem, leave these to me -"

Brady was excited when she looked at Ulrika, but Zheng Jianguo and others could see his eyes moving down Ulrika's face. Then she turned into the dressing room and began to wear dust-free clothes. After the four people entered respectively, Ulrika felt a thin graphite the size of her thumb from the white material cabinet: "there is a grinder on the table, I'll teach them to adjust the microscope and spectrometer. When you're ready, say -- "

"Unexpectedly, I haven't found it for more than 140 years, but I remember a theorem or something to prove that two-dimensional materials can't appear in nature?"

He took the thin graphite and felt its thickness with his fingers with fingertips. Brady's eyes swept over the thickness of several pieces of paper. When she saw Ulrika nodding, she was surprised and said, "did you do your homework in advance? You describe the verifiable Mermin Wagner theorem based on statistical physics. Classical physics holds that crystals are composed of perfectly ordered particles with continuous symmetrical atomic structure.

However, the Mermin Wagner theorem in 1966 broke this view: in one-dimensional and two-dimensional atomic structures (such as atomic chains or atomic films), there can be no perfectly arranged particles for a long time.

Therefore, some scientists believe that two-dimensional materials cannot appear in nature at room temperature, but scientists' curiosity can't stop. Don't you want to see the true face of one or several layers of graphite? "

"Well, I want to see it, but I'm here to do an experiment -"

Brady turned and looked at the graphite flake in her hand, shook her head and said that when she wanted to open the grinder, Ulrika's voice came from behind her: "wear goggles, gloves and masks, you don't want to inhale molecular graphite into your lungs. Believe me, you absolutely don't want to see patients with advanced pneumoconiosis. I only warn you once, No matter what grinder is turned on, remember to protect yourself. "

"OK, OK, I'll put it on right away."

Brady tilted his head without turning back. He picked up the protective goggles and mask next to him and put them on. Then he looked left and right. There were still stools under the grinder table. He immediately pulled them out and sat in front of him and turned on the strong light above. Seeing that all the preparations had been made, he turned on the switch depressed and pressed the thin graphite sheet in his hand on the grinder rotating at high speed.

However, the graphite sheet that Brady did not expect seemed very hard. After grinding, it would retract. There were only slight scratches on it. He turned his head and looked at the three people around the microscope behind him, and then turned around and pressed the graphite sheet on the grinder: "bare --"

"After Brady grinds, we can use this 300 nm thermal oxidation silicon wafer as a substrate to observe."

Ulrika looked at Brady behind Zheng Jianguo and said, "the polished graphite ash should be pasted off with tape so that you can see what the surface to be polished is like -"

"Oh, OK!"

When Brady's voice came, Ulrika looked back at Zheng Jianguo and Celia and said, "of course, before that, our preparation is to wash these substrates in an ultrasonic machine with acetone and absolute ethanol for 20 minutes to prevent surface contamination --"