Chapter 127 Is Chen Yuanguang qualified?
Chen Yuanguang can understand why everyone is so enthusiastic about room temperature superconducting technology.
Whether you understand it or not, you should pay attention. A live broadcast room about burning a stove on Station B can be watched online by 100,000 people, and Da Mao’s live broadcast on Twitter is also watched by tens of thousands of people.
The whole world is in the same situation. Everyone hopes that what the Koreans say about LK99 is true.
The reality is too cruel, science and technology has stagnated, the dividends brought by the traditional division of labor among countries around the world have disappeared, and geopolitical conflicts have intensified. If you extend the time, you will find that the intensity of hot geopolitical events is gradually increasing every year.
It is difficult for people to see hope in the real world. Everyone misses the golden age around the millennium. Although classes still exist and there is a gap between rich and poor, there is more room for class circulation.
Compared with the present, it looks extremely beautiful.
It is difficult to return to the golden age in reality, and everyone’s intuitive feeling in the golden age is the rapid development of the Internet. Internet technology is highly bound to the golden age. In a sense, the productivity explosion brought about by Internet-related technologies It is an important reason for the formation of the golden age.
When LK99 appeared, people realized that if room temperature superconductivity was real, then technology could solve most of the problems.
The cake is not divided enough. Room-temperature superconductivity can be realized. First, the cake can be exponentially larger. Secondly, there are expectations that technological breakthroughs can bring the next golden age to the world.
At least thirty years.
It is precisely because of such a beautiful fantasy that people’s discussion and attention to LK99 are unprecedentedly high. Everyone hopes that it is true.
The original paper of LK99 was reproduced at the speed of light by Chinese scientific research institutions.
On the Chinese Internet, even if this thing was developed by Bangzi, everyone wants it to be true.
Because once room temperature superconductivity is realized, all mankind will benefit.
To put it more bluntly, the large-scale application of room-temperature superconductors requires industrial production capacity. China is the only country in the world that can explode production capacity on a large scale.
A large number of netizens on Zhihu analyzed the stakes clearly. One netizen jokingly said: "Even if this allows the Koreans to monopolize the Nobel Prize in Physics for the next ten years, I still hope that room temperature superconductivity is true. ”
There are also a large number of people on Chen Yuanguang’s Weibo who hope he can talk about this matter.
As the most well-known scholar in materials science in China, netizens hope to hear Chen Yuanguang’s views.
"Guangshen, what do you think of LK99"
"It is said that the Meissner effect has been observed. If room temperature superconductivity is real, what impact will it have on society?"
The Meissner effect refers to a physical phenomenon that occurs when a material changes from a normal state to In the superconducting state, it will repel the magnetic field.
The LK99 material that went viral on the Internet is suspended above the magnet, which is the Meissner effect.
"Guangshen, were people wrong about the direction of realizing room-temperature superconductivity before, and flying bricks is the right way?"
From ChatGPT at the beginning of the year to room-temperature superconductivity in the middle of the year Guide, coupled with SpaceX’s Falcon 9, netizens feel that these explosive technological breakthroughs are a bit like flying bricks.
Like rocket launches, I used to think that it relied on rocket design, fuel, etc., but SpaceX launched one after another, with the same explosion frequency as fireworks. Finally, they made Falcon 9, which clearly tells you that it relies on horsepower. If the horsepower is big enough, it can fly. .
If the horsepower of one engine is not enough, then use two. If two is not enough, then four. In short, it will always work to get a few more engines and bundle them together.
I used to think that the core of artificial intelligence lies in the model and algorithm. ChatGPT tells everyone that the model does not matter, what matters is the data and computing power.
Combining the success of these two, everyone will think that the same principle applies to room temperature superconductivity. It depends on flying bricks with great force and performing miracles with violence.
The Koreans burned usable room-temperature superconductors by burning furnaces.
After Chen Yuanguang browsed through all the recent chaos about room-temperature superconductivity, he knew what he should do:
“Normal-temperature superconductivity will undoubtedly be one of the important keys to the new world. If it is really realized, , then new batteries, global power networks and quantum computers will become possible, and the research and development of controllable nuclear fusion will also accelerate.
There is no doubt that it is very important. Whether LK99 is real, I think it is itself. It is not a superconductor. Its experimental superconductivity comes from the structural transformation of Cu2S.”
Chen Yuanguang rarely posted a long Weibo reply, which made the already high level of discussion even higher. More than one shot.
"Chen Yuanguang's public response to LK99" quickly topped the Weibo hot search list.
A group of media called the securities management department of Guangjia Technology, hoping to interview Chen Yuanguang.
The media are all creatures that chase hot topics to survive. There are no sensitive factors that prevent everyone from talking about the hottest global topics at the moment, so they are naturally crazy about them.
“How do you evaluate Chen Yuanguang’s claim that LK99 is not a superconductor and that superconductivity comes from the structure of Cu2S?”
After the two hot topics on Zhihu intersected, the issue also quickly triggered discussions among netizens.
If you want to dash everyone’s hopes, don’t blame Zhihu netizens for being rude:
"Laxative, what does Chen Yuanguang, a perovskite researcher, know about superconductors?
Firstly, he has not done experiments, and secondly, he is not working in this direction. Why did he suddenly stand up and say that LK99 is not a room temperature superconductor?
I know that there have been too many scams about room-temperature superconductivity in the past, which has led to people’s doubts about it, including the results of room-temperature superconductivity given by the University of Rochester in March that were proven to be a scam
It was also rated as one of the top ten discoveries in the world in 2020. It was falsified this year, and this time it was Goryeo who said that he had achieved room temperature superconductivity.
Goryeo has academic credibility. It's even lower, so it's normal for everyone to have doubts.
But it is obviously unreasonable for Chen Yuanguang to say this as a public figure. He led such a trend without any evidence. This is disrespectful to the researchers who have persisted in LK99 for a long time.
Why is everyone paying so much attention this time? I think it is very credible because there are theories, phenomena, and historical accumulation.
It did not appear suddenly. Looking back now, Professor C began to study room temperature superconductivity many years ago. He proposed a one-dimensional superconductivity theory:
Some linear materials Possibly superconducting. Because the movement of electrons in linear materials is in a line and will not run in other directions, it is easier to achieve superconductivity.
This theory is logically self-consistent, and other physicists have long proposed similar views, including the observation of superconducting effects in some polymer materials.
Of course, this theory is a relatively niche theory and is not recognized by many people. However, it is common for niche theories to turn around in history. For example, graphene and liquid crystals were historically considered theoretically impossible, but All were synthesized, and finally new models were found to explain them theoretically.
So Professor C found that if he wanted to prove that the theory he supported was correct, the most powerful way was to synthesize a linear structure superconducting material according to this theory, and then all doubts would be shut up.
In 1999, two students of Professor C made LK99. LK99 showed diamagnetic properties. We can see in the video that it can levitate on magnets, which is the Meissner effect. Because a superconductor will generate an induced current internally after entering a magnetic field, and the induced current will generate a magnetic field that will repel each other and make the superconductor levitate.
And because it is a superconductor and has no resistance, this induced current will exist forever, which means that the superconductor will float like this forever.
LK99 exhibits incomplete diamagnetic properties, which means that one side of the material of LK99 will stick to the magnet, while the other side will always be suspended.
At the same time, from the observation point of view, LK99 has a resistivity jump at normal temperature, which means that the resistivity of LK99 will suddenly become smaller at a certain temperature.
This is the specific property of LK99 when it is synthesized.
The properties exhibited by LK99 are consistent with the one-dimensional superconducting theory proposed by Professor C. It is divided into two parts internally, one is an insulator with no electrical conductivity, and the other is a one-dimensional superconducting structure.
LK99 cannot be completely levitated on the magnet because of the levitation force provided by the one-dimensional superconducting structure in LK99 to the material. However, because there are a large number of insulating structures inside, it can only be partially levitated, and due to the one-dimensional superconducting structure The distribution is uneven, so part of the LK99 must be attached to the magnet.
The reason for the change in resistivity is also easy to explain. The superconducting phase in the material has reached the transition temperature, so the resistance is greatly reduced. However, because there are a large number of insulating structures in the material, the overall resistance of the material is still high.
LK actually does not want to announce the research results so soon, because it is not rigorous enough at present, which is also the main reason for the controversy.
A third-party person published a paper without permission. Currently, many laboratories have reproduced the experiment, and no conclusion has been reached yet. Chen Yuanguang directly decided the case on Weibo, which is undoubtedly inappropriate. "
"I object to the answer with the highest number of likes in real name. As a Ph.D. in materials science from MIT, Guangshen is not qualified. You guys in civilian science are qualified, right?
Isn’t perovskite also a chemical compound, not essentially different from LK99’s alchemy? Guangshen can make perovskite elixirs the best in the world. What's wrong with his opinion on LK99?
As for the R&D personnel who do not respect LK99, they have to support LK99 to be respected, right? Moreover, what Guangshen said was his own point of view, without any personal attack or definite conclusion. He only said what he thought, without saying what it must be like.
I think the supporters of LK99 are crazy. If you don’t support LK99, you will be attacked. "
"Laxative, I don't think Guangshen doesn't know anything about LK99, or that he hasn't done experiments. He can clearly say that Cu2S has the effect, which means he has done experiments and comparative analysis, so the following judgment.
The models and methods left by Guangshen in computational chemistry and biological calculations are now one of the mainstream research methods. If you stay in academia, you will be considered a top expert, so I personally still I believe in Guangshen's judgment. There is no doubt about his attainments in materials science. ”
The objection of LK99 supporters on Zhihu to Chen Yuanguang’s point of view is that he is not a superconductor and is not qualified to make a judgment.
Chen Yuanguang's supporters, on the other hand, point to academic achievements.
From Zhihu to Weibo to Douyin B station, the quarrel is non-stop.
The degree of support is gradually increasing. The proportion of people who support Chen Yuanguang is the least on Zhihu and the most on Bilibili.
The popularity was so tempting that the official staff member of Station B who was responsible for the main operation of the up approached Li Xiyin: "Xiyin, is it possible to invite Guangshen for another interview?
Let him Talk about LK99. ”
Li Xiyin looked surprised, "Can't you come? Guangshen is studying LK99. I don't have time. I haven't seen him for a long time."
Li Xiyin actually didn't ask, not even Lin Jia. , because she felt that the topic lk99 could not support a long interview.
And she didn’t want to waste her favors on this. There was another layer between her and Chen Yuanguang.
The staff at station b still wanted to try: "Can it be done?"
Li Xiyin didn't wait for her to finish: "No!"
Room-temperature superconductivity is too hot. The share price of a stock called Western Superconductor on the Amerikan stock market has soared by 30%. It has been rising for several days. The so-called superconducting concept stocks of Big A are also about to follow suit.
Guangjia Technology has been included in the superconducting concept stocks. The reason is that Guangjia Technology holds 20% of the stock of Xiaomi Motors. Room-temperature superconductivity will allow electric vehicles to completely replace gas vehicles, which will have a negative impact on new energy vehicles. It's a major benefit.
After Chen Yuanguang posted on Weibo, Western Superconductor began to plummet and returned to its original position. At the same time, the superconducting concept stocks of Big A also began to plummet.
Guangjia Aerospace has risen instead, and no one knows why. The experts in the stock market analyzed:
“Because of Guangshen’s insight and judgment in scientific research, investors Investors are more optimistic about the future of Guangjia Technology.”
In short, if you want to find a reason, you can always find it.
A month later, various experiments were released one after another, and it became a consensus in the academic community that the superconductivity of LK99 comes from Cu2S.
Of course there are supporters of LK99. It is not said that LK99 is a superconductor and has superconductivity, but most of the energy in the academic community is no longer on this.
On Zhihu, the previous question began to be dug up like crazy:
“Clown?”
"? Questioning Guangshen?"
"Guangshen knew a month ago that the anomaly in the resistance of LK99 was caused by Cu2S. These institutions have to do experiments to find out. What is the scientific research intuition of a top genius? !”
“Are you still stubborn? ”
Chen Yuanguang’s supporters patrolled Zhihu’s objections as if they were winning a battle.
In the laboratory of Guangjia Aerospace, a thin piece of material is suspended on a magnet. Different from the one-sided suspension of LK99, this time the entire material is suspended on the magnet, which is very obvious.
The resistivity in the computer next to it has also dropped to a much lower level than LK99, and the sharp drop curve is as attractive as the Riverside Scene during the Qingming Festival.
The researchers of Guangjia Aerospace who participated in this project had their eyes shining brightly, staring at this thing dreamily:
“We have made it.”
"This is not a superconducting phase, what is a superconducting phase"
"The boss is so awesome, this is a Nobel Prize-level achievement"
"Don't talk about the Nobel Prize. Winning the Nobel Prize for this achievement is the honor of the Nobel Prize, not the honor of Guangshen."
In Guangjia Aerospace, there are bosses named Chen Yuanguang and others named Guangshen.
Chen Yuanguang was not very proud, because he did not research it, but copied it.
The biggest difficulty in doing this is to use the technology of modern time and space to reproduce it. There are many equipments in future time and space that are not available in modern time and space.
Continue in the evening
(End of this chapter)