A few days later, Chen Muwu wore a Trinity College robe and came to the scene of his doctoral dissertation defense with ease.

This room in Cavendis's laboratory should be more familiar to him than many of the people present.

Because this is not another place, it is the conference room where Chen Muwu used to sit with a typewriter all day from time to time.

But unlike the previous dark and greasy environment, graduation season was approaching, and Rutherford asked Chadwick to barely clean the room in advance.

On the defense review bench sat the old and middle generations of physicists in the Cavendish laboratory, headed by Tomson Sr. and Rutherford.

The rest are also acquaintances, including Rutherford's son-in-law Fowler, Aston who once lent Chen Muwu Splenger pump, Wilson who invented the cloud room, anyway, everyone sitting on the jury seat is a famous big man.

On the side of the auditorium, Kapitsa, Ye Gongchao, Dirac and others were standing there.

Chen Muwu also saw Best coming from Gonville and Case College next door, and another Englishman he didn't know who was chatting with Best.

In addition to these, there were also several apostles from the Cambridge Apostolic Society, who came to the scene secretly.

Because it is a mysterious society, they can't reveal their identities in front of outsiders, so they just nodded to each other and didn't say a word.

A few minutes before the scheduled time for defense, Chadwick, who had started to preside over the work again today, approached Chen Muwu and informed him that he could take the stage.

Chen Muwu, who knew what to expect, straightened his collar and walked onto the podium at the front of the conference room.

Don't look at the scene of so many celebrities who have become famous or are about to become famous, but Chen Muwu's doctoral dissertation defense is completely a "thunder and rain" defense meeting.

Unlike the historical de Broglie, who relied on a doctoral dissertation and stumped the three experts on the review bench.

As a result, his teacher Lang Zhiwan was forced to be helpless, and he went to Germany with his thesis to find Einstein to make a decision.

Chen Muwu's graduation this time completely relied on an experiment, and it was an experiment that had already been done by his predecessors, but it was just a change of some experimental materials.

Although Chen Muwu did the Stern-Grach experiment of this ground-state hydrogen atom, the theory to be verified is very novel.

But experiments are experiments, so as long as the results of his experiments meet expectations, then in the Cavendish laboratory, Chen Muwu's paper can easily pass.

The results of the experiment are written on paper, what else can be asked?

If it weren't for the fact that they had to go through such a process before their doctoral dissertation could be approved, they would not be sitting in the current Cavendish laboratory, but would have walked out of the gate, turned left along Liberty Alley, and entered the Eagle Bar on Benedict Street!

Therefore, whether it was in the judging seat or in the auditorium, everyone did not take this defense meeting seriously, and some people even regarded him as a tea party.

There was only one person in the audience who was nervous, and this person, surnamed Chen.

After standing on the podium, Chen Muwu, who has been a man for two lifetimes, felt for the first time that he had a doctorate, and it turned out that he was so close to him.

Of course, the value of this Cambridge Ph.D. a hundred years ago is much higher than the one he didn't get a hundred years later.

Although he silently said that I was not nervous, Chen Muwu felt that his heartbeat was still much faster than before.

Everyone on the review bench had already read the paper, so Chen Muwu simply stated how he designed the experiment to verify his theory.

Next, it was time for questions from the judges.

To be honest, the judges sitting in front of Chen Muwu, they couldn't think of any questions to ask.

Last summer, Chen Muwu's golf friend, the old Tom Sun, was dying, and he came to the defense meeting this time, which was basically equivalent to a mascot-like existence.

On the question of atomic structure, the elder Tomson has always insisted on the raisin pudding model that he proposed.

Even the model of the atomic solar system proposed by his own student, Rutherford, who was now sitting next to him, was not approved by Old Tomson.

How could he agree with the absurd conclusion that Chen Muwu's electron not only revolves around the nucleus like the earth, but also rotates around its own axis?

The same is true for Aston and Wilson.

As the inventors of the mass spectrometer and the cloud chamber, two commonly used devices in physics, these two study of the microscopic world only at the atomic scale.

However, Chen Muwu's experiment confirmed a characteristic of electrons in atoms through a macroscopic experimental phenomenon, which is beyond the scope of their research.

And Chen Muwu's appearance out of thin air is a good thing for one of the two, but not so good for the other.

Chen Muwu successfully fooled the French big financier to buy a high-precision vacuum pump, and after he completed the ground-state hydrogen atom experiment, he was sent to Aston, which had lent him a Splunger pump.

The vacuum level has risen several levels all at once, giving Aston a lot of room for improvement in the accuracy of its mass spectrometer.

But for Wilson, it was not him and Compton in the original space-time who carried out the scattering experiment and found the recoil electron in the cloud chamber, but Chen Muwu, Kapitsa, and Blackett.

Without this achievement, I don't know if he would have won the Nobel Prize in Physics again?

Rutherford, on the other hand, has been following up on this series of experiments since Stoner's experiments on the outermost electrons of atoms.

At the Solvay Conference, he listened to Chen Muwu's lecture on the paper, and also urged Kapitsa to help Chen Muwu do this experiment, so he should be the second person in Cavendish Laboratory, besides Chen Muwu, who is the most familiar with the theory and phenomenon of this experiment.

Rutherford didn't have any problems, but if he didn't mention a single question, it seemed a little unreasonable, and he could only pretend to pick a random question.

In the review, Fowler was the only one in question.

After eating that meal at Ye Gongchao's house, Dirac was still very curious about what question Chen Muwu would give him.

He didn't care about the final exam, but the next day, he asked Chen Muwu for the so-called problem and the corresponding direction of the solution.

After thinking about it for a while, Dirac found that this topic still seemed to be a little difficult for him at present.

So he found a time to ask his teacher Fowler the question.

Fowler felt that he would not be able to find the answer to this question in a short period of time.

But he came to Chen Muwu's defense meeting today, looking at the young man on the stage who was becoming more and more confident, Fowler inexplicably gave birth to an idea in his brain, that is, the person on the stage must know how this factor 2 came from.

He actually wanted to talk to Chen Muwu about this issue, but Fowler also felt that it was a little inappropriate.

Let's wait until we go back and take a closer look, can we use the solution ideas that Dirac told him and Chen Muwu told him to find out the answer to this question.

"Gentlemen," Rutherford's loud voice rang out again in the small conference room, "the time is almost up, and do you have any questions about Chen's paper?" If not, we would like to congratulate Chen Muwu on successfully defending his dissertation and receiving his Ph.D. at the University of Cambridge! ”

The room gradually fell silent, and some people had even raised their hands, ready to applaud the protagonist of the day.

"Chen, I have one more question!"

From the auditorium on the side, there was a sentence in English with a strong Russian accent, which came from Kapitsa, who claimed to be "Chen Muwu's best friend in Cambridge".

Seeing the undisguised smile on his face, Chen Muwu had already guessed that this pistachio was most likely trying to trick himself and take this opportunity to have fun.

"Mr. Kapitsa, please speak."

"Dr. Chen, what I want to ask is, where are we going to celebrate after this defense meeting?"

"Whew—that's the problem?" Chen Muwu also cooperated with Kapitsa's performance, pretending to take a long breath, "Startle me, I thought you were going to ask me some unfathomable question." It's good to celebrate, and when it's over, everyone will go to the Eagle Bar, and all the expenses tonight will be paid by Chen Gongzi! ”

“Hooraaaaaaaaay！”

The applause, which had been brewing in the conference room for a long time, finally thundered.

Chen Muwu walked to the review bench and thanked several physics seniors who came to participate in his defense meeting today.

"From now on, I will call you Dr. Chen," Old Tom Sun held Chen Muwu's hand, "Do you have any plans after you graduate?" ”

Intend?

Of course, he continued to stay in the UK to make a name for himself.

Chen Muwu has no intention of returning to China now.

He did a quick calculation in his mind, it was May.

Even if you have to go back to China, after everything here in Cambridge has been settled, whether you take the train or the ship back, and wait until you get to your home in the sea, it will be July and August.

The autumn of 1924 was truly an eventful one.

Stay in the concession of Qihai, Lu Yongxiang of the province outside the concession and Qi Xieyuan of the Su province, two old warlords belonging to different factions, fought in a ping-pong battle.

Running to Shaojing, the second war also broke out between the direct line and the Feng line.

He really wanted to see with his own eyes how Feng Huanzhang set up a cannon to bombard his mother's little emperor on Jingshan.

But it is really unnecessary to return to China and risk your life just for such a thing.

However, since he had already thought of the Soviet War, Chen Muwu fell into thinking, how should he remind his family members in East Asia to keep them away from this disaster as much as possible?

"Chen?"

Seeing that the young man in front of him suddenly emptied his brain and fell into a sluggish state, and he never reacted to himself, old Thomson tried to call him again.

Old Tomson didn't know what Chen Muwu was thinking in his heart, and he thought that Chen Muwu didn't know what to do after graduation, so he spoke again: "If you haven't found a good place to go, then I can get you a teaching position at Trinity College." Of course, it is somewhat difficult to become an academician of the academy directly, and according to tradition, it may be necessary to rank seniority. However, if you want to be a researcher at Trinity College, as Capitsa did, then I can give you this offer now. ”

"Then thank you, Sir Tomson."

Chen Muwu didn't expect that he was in a daze, and the old dean gave him a big gift.

Regarding Chen Muwu's whereabouts after graduation, Rutherford had already talked to him.

Like Kapitsa last year, he also plans to let Chen Muwu stay in Cavendish Laboratories as a branch head who can take charge on his own.

But Chen Muwu, who is about to get a doctorate, is rarely "tough" in front of his teacher this time.

He said that he was too young to be able to convince the public, so he didn't want to be in charge, as long as he could do occasional experiments in the laboratory.

Chen Muwu said this, just to be lazy.

Instead of doing blind experiments like a headless fly in the laboratory, it is better to choose a quiet job, so that you can go to work and fish as you like, and write your paper by the way.

Now, the words of old Tomson allow him to receive an extra salary from Trinity College in addition to his work in Cavendish Laboratory.

Dr. Chen's wish to stay at the university after graduation was finally realized 100 years ago.

(End of chapter)