The Science Fiction World of Xueba

Associated Press: "The Swedish Nobel Prize Review Committee has just announced that Chinese scholars Pang Xuelin and Kirton Walker have jointly won this year's Nobel Prize in Chemistry."

The Times: "The youngest Nobel Prize in Science in history was born, and Pang Xuelin broke the age record held by the late British physicist Lawrence Bragg."

Agence France-Presse: "The lithium-air battery project won this year's Nobel Prize in Chemistry, and the Chinese genius boy became the youngest Nobel Prize winner in history."

Sankei Shimbun: "The son of the dragon created another miracle, and the Nobel Prize in Chemistry finally went to China."

Chosun Ilbo: "Pang Xuelin leads China's scientific and technological progress, unfortunately Pang is not Korean..."

"..."

Compared with the sour tone of the foreign media, the Chinese media just blow it for free.

Tencent News: "National scholars are unparalleled, academician Pang Xuelin won China's second Nobel Prize in Science, and the Chinese academic circle ushered in the era of Pang Xuelin."

Today's headline: "Shocked! The story that Professor Pang Xuelin and I have to tell, it turns out that Professor Pang in daily life is like this..."

Sina News: "Academician Pang Xuelin, a 24-year-old Nobel laureate, will inject new impetus into my country's scientific and technological innovation."

Observer: "In addition to worship, what else can we say? China won two Nobel Prizes in Chemistry in one day. In a sense, Pang Xuelin has become an iconic figure of our era!"

Phoenix.com: "Professor Pang Xuelin will be recorded in the annals of history as the pride of Chinese people all over the world!"

"..."

Pang Xuelin didn't have much time to watch online discussions and news.

After answering those congratulatory calls, he had to continue with the Xiangshan Science Conference.

When the plan is basically approved by all the participants, in the afternoon, the scientists present will start discussing the technical route of the plan listed by Pang Xuelin.

This kind of discussion is much easier than the morning's kind of needlepoint confrontation.

However, in most cases, it was Pang Xuelin who was explaining, and the experts at the meeting were listening.

After all, for such an unprecedented super project,

Except for Pang Xuelin, no one has experience.

Therefore, Pang Xuelin could only break down the entire proposal and explain each item to everyone.

The afternoon meeting lasted until five o'clock, when Pang Xuelin thought he could finally take a break, Zuo Yiqiu ran over and told Pang Xuelin that the reporter from CCTV had come and hoped to do an exclusive interview with Pang Xuelin.

Pang Xuelin had no choice but to follow Zuo Yiqiu to the reception room of the room, and saw his old acquaintance Dong Qing who had been waiting in the reception room for a long time.

"Reporter Dong, it's you, long time no see, long time no see."

"Academician Pang, I didn't expect that we would meet again after a year. You are already a legendary Nobel laureate."

"Haha, Reporter Dong was joking."

"..."

When Dong Qing interviewed Pang Xuelin last year, the two were already familiar with each other, so this time, the two chatted very easily.

"Academician Pang, this interview is relatively formal. In addition to the "NEWS Simulcast" at night, we will release the entire content of the interview in the "JD Interview" later. Do you need to prepare for the questions I will ask next? ?”

Pang Xuelin shook his head with a smile and said, "No, let's start directly."

If it was in the past, Pang Xuelin might have made some preparations. Now, after being transformed by genetic optimization medicine, he is not inferior to those real geniuses in terms of quick thinking, so naturally he will not show timidity in this situation. .

Dong Qing winked at the cameraman on the side, and said with a smile: "In this case, let's start now, the first question."

"Professor Pang, when did you receive the news of your award? How did you feel at that time?"

Pang Xuelin said: "It should be around 10:30 in the morning. I was in a meeting at the time, but Mr. Herbert Green, the chairman of the Nobel Prize judging committee, suddenly called. I was a little confused when I picked it up."

"A little confused? Are you surprised that you won the award?"

"It's not an accident, how should I put it? I just didn't expect Mr. Green to call directly, because I was discussing a very important topic at the time, and I didn't think much about it at all."

"Then what do you think of your award? And according to the record, you have broken the record of being the youngest Nobel Prize winner in science held by the British physicist Lawrence Bragg. How do you think about this?"

Pang Xuelin said: "I was prepared for the award. After all, it has been uploaded on the Internet for so long. As for breaking the record, I have great respect for Mr. Lawrence Bragg. I am honored to be able to break the record kept by Mr. Bragg. , I also hope that someone will continue to break my record in the future, because this represents the future of mankind."

"Thank you, Academician Pang, did you call your family after you won the award? What did you say to them?"

Pang Xuelin smiled awkwardly: "I haven't talked to my parents on the phone yet."

"ah?"

Dong Qing had a surprised expression on his face.

Pang Xuelin said with a smile: "My parents sent me WeChat, but they didn't say much. They know that I'm busy, so if they have nothing to do, they rarely contact me. Usually, they contact them when I am free. People get together again."

Dong Qing nodded with a smile and said, "What about your friends and colleagues? Have you talked to them?"

Pang Xuelin nodded and said: "There are many. After winning the award, I have received at least 20 congratulatory calls, including Tao Terence, my graduate tutor from across the ocean, Professor Deligne from Princeton, and Edward Witten. Professor Schultz and Professor Faltings in Europe. Of course, more domestic colleagues, friends, and students... Oh, by the way, Kirton Walker also called me to congratulate me, And then I congratulated him at the same time."

Dong Qing couldn't help laughing and said: "The two Nobel laureates congratulate each other, the scene should be very interesting."

Pang Xuelin smiled and nodded.

Dong Qing said: "Can you tell me the story between you and Mr. Cotton Walker? The outside world's information about the intersection between the two of you is from Professor Cotton Walker. It seems that you have never talked about this to the media. topic."

Pang Xuelin laughed, and said: "With Cotton Walker helping me brag, if I take the initiative to brag about myself, will it be too high-profile?"

"Ha ha!"

Dong Qing gave Pang Xuelin a thumbs up and said, "But we just want to hear how you flatter yourself."

Pang Xuelin deliberately showed a reluctant look on his face, and said with a smile: "Then I will try."

"The first time I met Professor Kirton Walker, at a cold lunch meeting in Princeton, I was the one who gave a report in Princeton, and then accidentally proved the Polignac conjecture..."

"When I first saw Professor Kirton Walker, I thought he was a liar."

"fraud?"

Dong Qing was a little surprised.

Pang Xuelin said with a smile: "Yes, it is the kind we often see on TV promoting health care products. He told me at the time that he could handle lithium-air batteries, and then bragged to me how good the future of lithium-air batteries is. , In fact, I refused in my heart at the time, because I knew very well the difficulties faced by lithium-air batteries. I was not interested until he told me to use graphene to isolate the aqueous electrolyte of lithium-air batteries. Because this idea and At that time, I had some coincidences with the lithium-air battery project.”

"Then we talked more and more speculatively, and Professor Kirton Walker proposed to me a cooperative research. But considering the sensitivity of this technology and the investment in research and development, I asked Professor Kirton Walker to come to Jiangda to work. I Originally, I wondered if the other party would hesitate. After all, there is still a certain gap between Princeton and Jiangda University objectively. I didn’t expect the other party to agree without hesitation. I found out later that Professor Kirton Walker It has been blocked by the American industry, and it is not taken seriously in Princeton..."

"..."

The interview lasted for more than an hour before it was considered over.

Due to time constraints, Dong Qing politely declined Pang Xuelin's invitation to have a meal, and set off directly back to the city.

In the "NEWS Simulcast" that night, Yang Ma rarely gave Pang Xuelin nearly ten minutes of reporting time, introducing all his achievements since he made his debut in the academic world.

At the end of the news, Yang Ma reported: "Professor Pang Xuelin, as a national treasure-level strategic scientist of our country, fulfilled his mission, led scientific and technological innovation, and made outstanding contributions to the scientific and technological progress of our country and even all mankind. Let us pay tribute to Professor Pang Xuelin .”

After "NEWS Simulcast", "JD Interview" simultaneously broadcast Dong Qing's exclusive interview with Pang Xuelin.

The playful dialogue between Pang Xuelin and Dong Qing quickly spread on the Internet, causing quite a stir.

"Haha, this is the first time I have seen Professor Pang have such a lifelike side, and I feel that Professor Pang is no different from normal young people."

"It's the same, except that people's brains are filled with gold, while mine are filled with thatch."

"Didn't you realize that Professor Pang is getting more and more handsome? He's much more handsome than those little fresh meats in the entertainment industry. What should I do? I feel like I'm going to fall in love with him."

"Hmph, you just know, how can my idol be compared to those coquettish sluts in the entertainment industry..."

"Let go of my husband, no one is allowed to rob me..."

"..."

Even Pang Xuelin didn't expect that he would have an exclusive fan group on the Internet at some point, and the fighting power of these fans, even among the girls in the fan circle, is among the best.

In the words of one of the fans: "It's called talent, but beauty..."

Although he basically doesn't post much on Weibo on weekdays, in just two years since its opening, Pang Xuelin's number of fans on Weibo has exceeded 20 million.

This is the real number of fans, which is fundamentally different from those who buy fans.

Pang Xuelin didn't pay much attention to this. His main energy now is still on the Xiangshan Science Conference.

The Xiangshan Science Conference lasted for three full days before it was considered over.

After the meeting report is released, it will be submitted to the top leadership for a final decision.

Pang Xuelin originally thought that there would be nothing wrong with him in the future.

As a result, after the Xiangshan meeting ended, he was called into the palace again and participated in a higher-level meeting.

Finally, on the last day of the National Day holiday, high-level decision-making passed the project plan of the electromagnetic orbital space launch system proposed by Pang Xuelin.

The name of this plan was named China's new generation manned spaceflight project, and Pang Xuelin became the commander-in-chief of the project.

It's just that the release of this plan seems to be a little silent. Not only is there no report in the media, but even internally, it is in the stage of absolute secrecy.

According to Pang Xuelin's plan, this project will mainly make breakthroughs in relevant theories and technologies in the short term, and then allocate relevant funds in batches according to the progress of technological breakthroughs.

So on the first day of the plan's launch, the first batch of 10 billion RMB scientific research funds were directly sent to Qiantang Laboratory.

After finally finishing all these tasks, Pang Xuelin took two days to spend a good time around the capital with Yao Bingxia, and then took the special plane back to Jiangcheng.

As soon as he returned to Jiangcheng, Pang Xuelin directly called all the members of the Flying Blade Material project team to review the upgrade and transformation plan of the Flying Blade Material, and then asked the project team to connect with Xinkai Material Co., Ltd. to realize the Flying Blade Material as soon as possible. Mass production.

Until then, Pang Xuelin began to have time to focus on the research of normal temperature superconductivity.

In fact, among the rewards that Pang Xuelin received from the dark forest world, there is no technology related to room temperature superconductivity.

Back in the Dark Forest World, the reason why Vader and the others created the super electromagnetic ejection track that was more than 20 kilometers long was that they piled up resources regardless of cost.

The niobium-titanium alloy and liquid helium used to maintain the superconducting effect alone cost trillions of dollars.

In the real world, it is impossible for Pang Xuelin to do this.

Therefore, he had to find another way to find a general superconductor physics mechanism.

The so-called superconductor refers to a conductor whose resistance is zero at a certain temperature.

The discovery of superconductors is inseparable from the study of low temperatures. In the 18th century, due to the limitations of cryogenic technology, it was believed that there were "permanent gases" that could not be liquefied, such as hydrogen, helium, etc.

In 1898, British physicist Dewar made liquid hydrogen.

In 1908, Professor Camerin Onnes of the Leiden Low Temperature Laboratory of Leiden University in the Netherlands successfully liquefied helium, the last "permanent gas", and obtained 1.15-4.25 by reducing the vapor pressure of liquid helium. K low temperature.

The breakthrough in low temperature research laid the foundation for the discovery of superconductors.

In the field of physics at the end of the nineteenth century and the beginning of the twentieth century, there were different opinions on the change of the resistance of metals near absolute zero.

One view is that the electrical resistance of pure metals should decrease with decreasing temperature and disappear at absolute zero.

Another point of view, represented by William Thomson (Baron Kelvin), believes that as the temperature decreases, the resistance of the metal will become infinite due to the condensation of electrons on the metal atoms after reaching a minimum value.

In February 1911, Catherine Onnes, who had mastered liquid helium and cryogenic technology, discovered that below 4.3K, the resistance of platinum remained a constant instead of increasing after passing through a minimum value. Therefore, Catherine Onnes believed that the resistance of pure platinum should disappear at the temperature of liquid helium.

In order to verify this conjecture, Camerin Onnes chose mercury, which is easier to purify, as the experimental object.

First, Catherine Onnes cooled the mercury to minus 40°C to solidify the mercury into a line; then used liquid helium to lower the temperature to around 4.2K, and applied a voltage across the mercury line; when the temperature was slightly lower than 4.2K K, the resistance of mercury suddenly disappears, showing a superconducting state.

Later, after research by many scientists, it was discovered that superconductors have three basic properties: complete electrical conductivity, complete diamagnetism, and flux quantization.

The so-called complete conductivity, also known as the zero resistance effect, refers to the phenomenon that the resistance suddenly disappears when the temperature drops below a certain temperature.

Complete conductivity is suitable for direct current. When a superconductor is exposed to alternating current or an alternating magnetic field, there will be AC ​​loss, and the higher the frequency, the greater the loss.

AC loss is an important problem that needs to be solved in the practical application of superconductors. Macroscopically, AC loss is caused by the difference between the induced electric field and the induced current density generated inside the superconducting material; Caused by stagnant motion.

AC loss is an important parameter to characterize the performance of superconducting materials. If the AC loss can be reduced, the cooling cost of the superconducting device can be reduced and the operation stability can be improved.

Second, complete diamagnetism, also known as the Meissner effect, "diamagnetic" refers to the phenomenon that when the magnetic field strength is lower than the critical value, the magnetic field lines cannot pass through the superconductor, and the internal magnetic field of the superconductor is zero. "Completely" refers to lowering the temperature The order of the two operations of reaching a superconducting state and applying a magnetic field can be reversed.

The reason for complete diamagnetism is that a lossless diamagnetic superconducting current can be generated on the surface of the superconductor, and the magnetic field generated by this current cancels the magnetic field inside the superconductor.

The zero-resistance properties of superconductors are well known, but superconductors are not the same as ideal conductors.

Starting from the electromagnetic theory, the following conclusions can be deduced: if the ideal conductor is cooled to a low temperature first, and then placed in a magnetic field, the internal magnetic field of the ideal conductor is zero; but if the ideal conductor is first placed in a magnetic field, and then cooled to a low temperature, the ideal The magnetic field inside a conductor is not zero.

For superconductors, the two operations of lowering the temperature to reach the superconducting state and applying a magnetic field, no matter what the order is, the internal magnetic field of the superconductor is always zero, which is the core of complete diamagnetism and the key to distinguish superconductors from ideal conductors.

Third, the flux quantization effect, also known as the Josephson effect, refers to the phenomenon that when the insulating layer between two superconductors is as thin as the atomic size, electron pairs can pass through the insulating layer to generate tunnel current, that is, in the superconductor-insulator- Superconducting structures can generate superconducting currents.

The Josephson effect is divided into DC Josephson effect and AC Josephson effect.

The DC Josephson effect means that electron pairs can form a superconducting current through an insulating layer.

The AC Josephson effect means that when the applied DC voltage reaches a certain level, in addition to the DC superconducting current, there is also an AC current. If the superconductor is placed in a magnetic field, the magnetic field penetrates into the insulating layer, and the maximum superconducting current of the superconducting junction increases with the external current. The size of the magnetic field changes regularly.

High-speed text hand typing Xueba's Science Fiction World Chapter List