Kapitsa told Chen Muwu the ins and outs of his journey from Cambridge to Stockholm.

Including how he was informed by Chadwick that he would temporarily send Rutherford and Chadwick to Norwich Harbor, and how the two persuaded him to stay in the UK and guard the Cavendish laboratory well, and not to come to Sweden to cause trouble for Chen Muwu.

And how Kapitsa himself found out from Rutherford's luggage, and judged that the two of them were not going to Stockholm to attend the ribbon-cutting event at the Prince's College, but to have something else.

And how Kapitsa, under the command of the ticket office staff, bought a ticket to Copenhagen in Norwich Harbor under the command of the ticket office staff, and then turned to the overland curve to save the country.

After saying all this, Kapitsa said proudly: "How is it, Chen, I have seen the ability to know the subtleties, and my reasoning is not bad, right?" When will you write that George Chen's words again, can you add another deputy to him, a Cambridge University classmate from Russia, Peterovich? ”

Now readers all over the world basically know that the prototype of George Chen, an international student at Cambridge University, is Chen Muwu, if you add a Cambridge Russian student classmate Peter Novic, you are afraid that others will not know that this Peter is yourself!

Chen Muwu smiled and didn't speak, he turned his gaze to Bohr, who appeared with Kapitsa in Sweden.

"Professor Bohr, it's been a long time, why did you come to Stockholm?"

There was no accusatory tone in Chen Muwu's words at all, but what he meant was that Kapitsa was fooling around, what are you doing fooling around with him?

"I heard from Mr. Kapitsa that Sir Rutherford, the teacher, was coming to Stockholm as well, so I wanted to meet him here.

"We haven't seen each other for more than a year since last year's Solvay meeting.

"Every time we separate, I always think that there are many opportunities to meet next time.

"But who can be sure that their meeting is not the last?"

There was a sentimental air in Bohr's words, not because he had suddenly become a literary middle-aged, but because of the sudden death of Professor Lorenz, the chairman of the Solvay Conference, at the beginning of this year.

"Dr. Chen, I see that there is still a construction site near this school, in this case, can the ribbon cutting really be carried out?"

Bohr raised his doubts.

In fact, in order to celebrate the 70th birthday of King Gustav V of Sweden, the first phase of the entire school has been cut in this situation.

However, the matter was only published in the local newspaper in Stockholm and did not spread around the world.

I didn't expect Rutherford to come up with such a strange reason to reject Kapitsa, and I didn't expect to see the hot architectural scene around the Prince's College, Bohr actually believed Rutherford's lies.

"Hey, Professor Bohr, Teacher, he's really not here to cut the ribbon, but has other things."

"I knew it!" Kapitsa smuggled on the sidelines, "I know! ”

Bohr asked, "So what did Sir Rutherford come to Sweden for?" ”

"This ...... I'm sorry, Professor Bohr, but I can't say that at this time. ”

From Capitsa's description just now, Chen Muwu had already learned that the teacher Rutherford and his assistant Chadwick had left Norwich Harbor a day earlier than Capitsa.

Even if a ship on the sea is a little slower than a train on the road, the ship would have to go around the whole of Scandinavia and be a little farther than the train that passes through.

But it is estimated that in another day and a half, the teachers and they will arrive in Stockholm.

Chen Muwu didn't want to explain a problem twice in a short period of time, so he told Bohr and Kapitsa that they would inform everyone about this problem after they got off the ship.

For the time being, Prince College does not have room accommodation like the Institute of Theoretical Physics.

Chen Muwu could only arrange Bohr and Kapitsa to a nearby hotel.

The arrival of Bohr and Kapitsa made Chen Muwu realize that time was pressing.

He seized the last period of time before Rutherford and Chadwick arrived, and in the laboratory of Prince's College, he used the alpha particle source that Frederick borrowed from Uppsala University, the crystal boron and paraffin blocks he got from the Royal Institute of Technology in Stockholm, and the cloud chamber to build the experimental equipment needed to "discover" neutrons.

The next day, Rutherford and Chadwick, who had arrived first, also disembarked at the passenger terminal in Stockholm.

Chen Muwu had already inquired about the passenger information from the port, and waited outside the customs gate in a car early.

He saw a tall and muscular man with a polite English gentleman at his side, so he hurriedly got out of the car and took the suitcase from Rutherford's hand.

"Teacher, Mr. Chadwick. Worked hard along the way, right? The North Sea is rougher than the English Channel, and the last time I sailed to Denmark, I almost didn't die on a steamer in the North Sea. ”

Rutherford didn't want to greet Chen Muwu about this, the expression on his face was very serious.

"Chen, you said that you have discovered neutrons, is it true or not?"

"Really." Seeing the teacher like this, the expression on Chen Muwu's face became serious.

"But it's useless for me to say anything, you and Mr. Chadwick go to the lab and see what the experiment is going to be."

"Chen, don't be so polite, you can just call me James."

After putting the luggage in the trunk of the car, the group of three got into the car.

This time, instead of squeezing into the back with Chadwick as he did from Cambridgeshire to Norwich, Rutherford sat directly in the front passenger seat of the car.

Because the UK and Sweden were driving in different directions, he first opened the door on the left side of the front seat, and only realized that he had misplaced himself when he found the steering wheel.

"Teacher, please fasten your seatbelts."

Chen Muwu pointed to the strap on the wall of the carriage.

"What's new about you? Is it all on Swedish cars, or is it something that you modified yourself? ”

Rutherford followed the master's instructions, fastening the seat belt according to Chen Muwu's demonstration, and asked what this thing was.

While driving, Chen Muwu explained to the teacher the origin of the seat belt, specifically how he was rejected by Rolls-Royce Motor Cars, and how he applied this invention patent to Volvo cars.

Rutherford smiled on the surface, but in his heart he had cursed the Rolls-Royce car brand countless times.

Their managers are so damn blind that they don't know how much it would cost to install a seatbelt module in a car?

They are also one of the culprits who pushed Chen Muwu from England to Sweden!

After the group of three arrived at the Prince's Academy, Bohr and Kapitsa, who had arrived a day earlier, were already waiting here.

Bohr, who hadn't seen him for a year, exchanged a few words of greeting and told the latter to take care of his health.

Zhao Zhongyao and Cockcroft, Irena and Frederick, and Professor Bierman of the University of Copenhagen all walked out and greeted everyone one by one.

After the greeting session, according to the protagonist's meaning, he takes Rutherford directly to see his experimental device.

But the teacher rejected his arrangement and offered to see the entire physics laboratory building of Prince College.

Rutherford knew that the lab had been built under the protagonist's auspices, and he wanted to see what the protagonist had learned from him and what improvements he had made to the Cavendish lab.

The protagonist doesn't know if the teacher Rutherford heard something, or why he would visit his physics lab.

In this way, his big baby probably can't be hidden anymore.

The protagonist thinks that it won't be long before his "Journal of the Prince's College" is published, and then the whole world will know that the protagonist and his research team have found, or rather "created", the new elements 43 and 85, and that the instrument that created these two new elements is called the cyclotron.

So the protagonist simply took the four new guests directly to the laboratory where the return accelerator was installed.

Except for a few people who had worked and lived at the Prince's College for a while, none of the four guests who had come to Stockholm in the past two days knew what the cylindrical tin machine in the middle of the room was.

But the more Rutherford looked, the more familiar this scene became:

The floor, walls, and ceiling of the entire room are covered with thick sheets of insulating mica, and in the corner of the room there is a cloud chamber that was born more than ten years ago in the Cavendish laboratory and has been improved countless times.

"Chen, this machine of yours, it's also a particle accelerator?"

Rutherford voiced his doubts.

"That's right, teacher, it's also a particle accelerator."

"So how did it come to this shape? Where are its acceleration electrodes? And how high can it provide a potential difference? ”

"Teacher, this one is not the same as the electrostatic particle accelerator at Cambridge University.

“……”

Chen Muwu began to explain to the four people the specific principle of this machine, using an electric field to accelerate the charged particles, and then using the magnetic field to confine these charged particles to a small range, so that they move in a circular motion.

"When charged particles are accelerated to a high enough speed, the radius of their circular motion will become larger and larger, so that eventually they will shoot from here, either to bombard targets on the target, or to enter the cloud chamber for observation, thus ending an acceleration effect."

After Chen Muwu's explanation was completed, none of the four guests spoke first.

Bohr of the "Junziyuan Laboratory" has the most relaxed expression on his face.

And the remaining three people who have been at the forefront of the Cavendish laboratory all know what the latest particle accelerator developed by Chen Muwu means for experimental research in microscopic physics.

Electrostatic particle accelerators have limited efficiency by repeating the mode of "charging-discharging-recharging" before each acceleration.

Chen Muwu's new particle accelerator can use an alternating current field to quickly accelerate charged particles as long as there is electricity.

Away from the original Cavendish lab, he went out to build a new gadget that was even more high-end.

The more Rutherford didn't speak, the more Chen Muwu felt as if he was cheating on her husband who had been caught.

Thankfully, after a moment's silence, Rutherford didn't say questions such as "Why didn't you build this accelerator at the Cavendish Laboratory?"

Perhaps he may have thought of a situation in his heart, that is, this whirling particle accelerator may require higher consumption to build, and Cavendish Labs can't afford it, or even if he can afford this fund, he may not necessarily approve this fund for Chen Muwu at that time.

"Chen, you said you discovered the neutron, did you discover it on this machine?"

After listening to Chen Muwu's explanation of the cyclotron, the only people who were surprised were the four guests who rushed to Stockholm from Denmark and the United Kingdom.

But when Rutherford asked this question, everyone present except for Rutherford himself, Chadwick and Chen Muwu had a very shocked look on their faces.

Neutron?

Dr. Chan never said anything about it, did he?

Satisfied, Chen Muwu quickly explained: "That's right, I didn't want to use this particle accelerator to discover neutrons at first, what I wanted to discover was two new chemical elements......"

Chen Muwu briefly explained to Rutherford the two things of using the accelerated alpha particles to bombard the bismuth metal and the accelerated deuterium nuclei to bombard the metal molybdenum, respectively, to obtain the No. 85 element and the No. 43 element.

"I also specially invited President Bierman from the International Union of Pure Chemistry and Applied Chemistry to test whether these two experimental products are new elements."

Because Bierman sent this telegram at the Institute of Theoretical Physics, Bohr knew about it.

"The discovery of neutrons is also a coincidence.

"It's because of this Mr. Frederick,—— he is Marie Curie's eldest son-in-law, and by his side is Marie Curie's eldest daughter, Irena.

"Mr. Frederick found a problem, that is, before and after a nuclear reaction, the data relative to the atomic mass did not match.

"Bismuth-209 plus helium-4 produces iodine-211, with two relative atomic masses missing.

And again, molybdenum-96 plus deuterium-2, which produces manganese-97, still has a relative atomic mass missing.

"So I thought of the experiment that I had done half of before, and the relative atomic masses of one or two that disappeared were probably the mysterious neutron that you had been looking for for more than ten years, teacher!"

(End of chapter)