Although he hadn't even written a word yet, Chen Muwu still told Kapitsa, who was unhappy at this time, about his recommendation to old Prague to be the director of Mondstadt's laboratory.

He wasn't drawing a pie, as it would take a long time for the Mondstadt Lab to be built, so it didn't matter if it would actually be fulfilled in the future.

Chen Muwu really felt that even if he didn't recommend it to Old Prague, Kapitsa still had a good chance of becoming the director of this laboratory.

Although the Mondstadt Laboratory was separated from the David Faraday Laboratory of the Royal Institute, it was prefixed with the Royal Society.

By the time the Mondstadt laboratory was built, Rutherford was already president of the Royal Society, and he would have a big say in the selection of the director of the laboratory.

It can't be said that there is cronyism, but no one wants to entrust such a very important laboratory to someone who knows the roots.

Old Prague didn't have many good candidates, and the only one with the talent and experience of laboratory management was his son Prague Jr., who didn't want to call Bragg Jr. to his side.

Old Prague can't find it, then he will definitely ask Rutherford for help, after all, just as Chen Muwu said to him before, the Cavendish Laboratory is the best physics laboratory in the UK, and the physics talent pool in it is also first-class.

And by Rutherford's side, Chen Muwu has clearly rejected the old Prague's retention, and Chadwick, as the big steward of Cavendish Laboratory, Rutherford will definitely not let him go.

In addition to the two of them, among the students and staff in the laboratory, the third most intelligent and capable person can only be Kapitsa.

If there had been no new experimental genius in the British physics community during the period before the construction of the Mondstadt laboratory, Chen Muwu felt that Kapitsa should be the director.

After listening to Chen Muwu's extremely honest words, Kapitsa felt that he had just spent some of his belly as a villain.

Such a good opportunity, Chen Muwu can still think about himself, if this is not a friend, then what is a friend?

And the idea he thought of before hadn't been told to Chen Muwu in advance.

He was able to think of it before himself, and finally put it into the experiment, it cannot be said that Chen Muwu plagiarized his academic achievements, it can only show that he is smarter than himself.

Capitsa didn't think there was anything wrong with the conclusion he had finally reached.

The newspaper said that he Chen Muwu was smarter than Einstein, let alone himself!

However, why did Chen Muwu not accept the position of director of Mondstadt Laboratories himself, but instead recommended him to go?

Kapitsa couldn't figure out this question, and finally asked it with a very tactful question: "Chen, Chen, I have always studied magnetism in the Cavendish Laboratory, I have no experience in low-temperature physics, and I am not a genius like you, how can I achieve results in a new field in a short period of time, how can I take the position of director of the Mondstadt Laboratory?" ”

Chen Muwu thought to himself, buddy, this is helping you.

The construction of the Mondstadt laboratory, which studies low-temperature physics, has already begun ahead of schedule, and if Kapitsa had switched from magnetism to low-temperature physics earlier, perhaps he would have discovered the superflow of liquid helium at low temperatures before he left the UK to stay in Sulian.

In this way, it may be possible for Kapitsa to win the Nobel Prize in Physics before the war began, instead of waiting for him to return to Sulian and be dragged by the Nobel Prize jury for decades because of various ideological issues.

Chen Muwu did not plan to interfere in the fact that Kapitsa was left in Sulian during the family visit holiday like Rutherford did this time.

After all, the two of them are not as the newspaper said, the Sulian government unreasonably detains scientists and does not let them go abroad, but Lang has affection and concubines are intentional.

The Sulen government wanted him to stay and help improve physics in his homeland, and Kapitsa was willing to do the same.

Moreover, Kapitsa's stay in Sulian can also be regarded as beneficial and harmless to Chen Muwu.

In the future, whether it is to return to China by train by land, or because of some other things, he will always be unable to avoid this country.

At the top of the Sulian scientific community, it is still necessary to have someone who can speak.

Chen Muwu didn't want to wait until he went to Sulian in the future to receive his colleagues in the scientific community, not his good friend Kapitsa, but Lysenko, who "made Chinese people wear autumn pants" in the famous fishing sticker.

After chatting about the director of the Mondstadt Laboratory, Kapitsa couldn't help but ask Chen Muwu how he transferred from heavy hydrogen to the magnetic properties of superconductivity.

So Chen Muwu told him vividly how he discovered the phenomenon of niobium pieces floating up by mistake in front of Wells and Huxley some time ago.

"Chen, did you put that niobium and magnet together, did you do it on purpose, or was it accidental?"

"It's deliberate...... No, of course I accidentally put it in! ”

Chen Muwu felt that Kapitsa lacked a pair of glasses on his nose, and the expression on his face was not enough to grit his teeth, and the question he asked did not have that taste.

However, due to habitual thinking, he almost answered the wrong answer.

"It seems that you are not only a genius, but also unusually lucky, a mistake, but you can discover a new phenomenon. I've been discussing it with Cockcroft for a long time, and I'm going to do this experiment to study it, but I didn't expect you to do it before you can take concrete action. ”

"Who? Who are you talking about? Cockcroft? ”

"Yes, do you know John? He married James this summer, and after they got married, he was sent by the old crocodile to be my assistant. ”

During a casual conversation with Kapitsa, Chen Muwu heard an unexpected name, John Cockcroft.

Is this man at Cavendish Labs now?

If it weren't for the linear accelerator that Vidro had built, which could only be considered a verification but had little practical effect, then Cockcroft was the first person to build a particle accelerator that could actually be used in the laboratory.

It was said that Rutherford gritted his teeth and set aside a thousand pounds to study particle accelerators, and the destination of this huge amount of money was Cockcroft's research team.

And from Cavendish Labs to Mondstadt Labs, Cockcroft has always served as Kapitsa's assistant.

After Capitsa returned to Sulian, he was the one who succeeded him as the director of the Mondstadt Laboratory.

Cockcroft, a fellow of Dirac's, graduated from St. John's College, Cambridge last summer, and then enrolled in the Cavendish Laboratory as a graduate student.

But at the same time, Chen Muwu first prepared for and participated in the Paris Olympics, and soon after returning to Cambridge, he went north to Denmark, stayed with Bohr for a few months, and won a Nobel Prize from Sweden by the way.

Then, at the beginning of this year, he was sent by Rutherford to the Davy Faraday laboratory in old Prague, London, and only now can he be regarded as a complete return to the Cavendish laboratory.

Therefore, Chen Muwu didn't know much about the changes in the personnel in the laboratory in the past year, and there were many graduate students every year, so he didn't have time or need to get to know them one by one, and it was normal for Cowcroft to have entered the Cavendish laboratory.

However, now that he knew that Cockcroft was in the lab, he had to take it under his control.

Not to mention his theoretical level, just by being able to rub out a particle accelerator with his bare hands, Cockcroft's hands-on ability will definitely not be bad, which is exactly the talent that Chen Muwu is continuing to work on.

But this person can't ask Capitsa now, so let's wait for an opportunity to talk to the teacher Rutherford.

Kapitsa lingered in the office for a long time, and carefully talked to Chen Muwu about the various major events that happened in Cavendis's laboratory during his absence.

This put an end to Chen's desire to start scientific research on his first day back in the lab, and he had to wait until tomorrow to make the miniature model of the particle accelerator he promised to provide to Rutherford.

Early accelerators were divided into three schools, two of which were high-pressure accelerators and the other was cyclotrons.

The cyclotron was directly screened out by Chen Muwu, because it was too expensive to build this thing, even if Chen Muwu could build a matchbox-sized model, Rutherford would definitely not pay for it to implement it into reality.

In 1936, a year before Rutherford's death, the Cavendish Laboratory began to explore whether a more advanced and energetic cyclotron should be built at Cambridge University.

But this proposal was directly rejected by Rutherford because there was no money.

In the end, it was Baron Austin's donation that made the project go smoothly.

Baron Austin, born Herbert Austin, was a well-known British big business owner.

Like Henry Ford in the United States, he produced cars with his own family name as his brand name.

Baron Austin donated £250,000 to Cavendish Laboratories for this 36-inch, 910-millimeter cyclotron!

Rutherford generously provided Chen Muwu with 2,500 pounds of particle accelerator funds today, which is exactly 1100 percent of Baron Austin's large donation.

The Cavendish laboratory now has less than £20,000 a year, and even if it were to save all the money from January 1 next year without spending a penny, ten years later in 1936, it would not be able to save the £250,000.

Since you can't build a cyclotron, you have to choose between the two remaining DC high-voltage accelerators.

The so-called high-voltage accelerator is to generate high voltage first, and with high voltage, there is an electric potential difference U, so that the charged particles e pass through this huge electric potential difference, ΔE=eU, which can make it carry a huge amount of energy.

The key to making this particle accelerator is how high pressure is generated.

Cockcroft came up with a way to design a direct current circuit that uses capacitors and diodes, through which the low voltage multiplies to the high voltage needed to accelerate the particles.

Robert van der Graff of the United States has given another way to create high voltage, which is to use static electricity.

The machine he developed to produce high-voltage static electricity was called the Van der Graff starting motor.

This kind of starter can not only provide high voltage to accelerate particles, because it is cheap, but also often appear in popular science to demonstrate the power of static electricity.

If you walk into a municipal science and technology museum for elementary and middle school students, there will always be a metal ball that can make your hair explode when you touch it, and that ball is also a small Van der Graaf starting motor.

In contrast, Van der Graff's electrostatic accelerator is cheaper than Cockcroft's DC accelerator, simple in structure, and better and higher in stability and voltage it can provide.

Chen Muwu planned to build a model to lobby Rutherford for the particle accelerator he built at Cambridge University, which was exactly that.

It's just that he asked Cockcroft to help him develop a Vandergraff-style particle accelerator, can this also be considered an NTR?

Speaking of which, in addition to Cockcroft, Chen Muwu's Chinese compatriot Zhao Zhongyao also has a lot of connections with the Vandergraf electrostatic accelerator.

In 1955, he built the first electrostatic accelerator with 700,000 electron volts.

Most of the components in this accelerator were purchased from the High Voltage Engineering Corporation (HVEC) in the United States after visiting the atomic bomb test on Bikini Island in 1946.

The company was founded by Van der Graff and others and specializes in the production of electrostatic accelerators.

But it was not Van der Graff who sold the accelerator components to Zhao, but one of his partners, John George Qu Trunp.

At that time, HVEC offered a minimum of $400,000 for a complete electrostatic accelerator.

And the maximum purchase money that Zhao Zhongyao can get is only 50,000 US dollars.

With such a huge disparity in money, he should not have been able to buy an accelerator.

But Lao Qu, who became more and more attached to Zhao Zhongyao in getting along, thought of a good way.

He sold an accelerator that was about to retire and be sent to a scrap factory for destruction, and sold it to Zhao Zhongyao at the scrap price.

Although the old Qu family is far away in the United States on the other side of the ocean, there have been two patriots (not) in two generations, which is really a loyal hymn!

There is such a connection between Zhao Zhongyao and the electrostatic accelerator, and this time Chen Muwu brought Cockcroft with him to develop the particle accelerator, so he could not be missing.

After deciding on the helper, Chen Muwu finally began to make a model of this electrostatic accelerator.

The model was very simple to make, and he asked Oppenheimer to prepare the raw materials for himself, just a metal tin can, a small motor, and a well-insulated ribbon.

Oppenheimer paid for these things himself, and he couldn't go to Chen Muwu for reimbursement at all.

Because these three things together did not cost him five shillings.

What does the teacher want these cheap things for?

(End of chapter)