"Dr. Chen," Lei Bingyang was very moved and excited after hearing Chen Muwu's promise, and he was a little incoherent, "Thank you, thank you very much!" You've done our legation a great favor. Please rest assured, I will definitely write you an IOU for this matter, and when I have money in the future, I will return the money as soon as possible. I, Lei Bingyang, do what I say! ”

Chen Muwu smiled on his face, but there was no wave in his heart.

After he lent the money, he didn't plan to recycle it at all.

Don't want to?

No, Chen Muwu knew from the beginning that the money was basically not going to come back.

Even as the chargé d'affaires ad interim in Sweden said, he gave Chen Muwu an IOU.

However, if the other party does not repay the loan, what is the use of just having an IOU?

Could it be that Chen Muwu could still go back to China from Europe and take the IOU to the Ministry of Foreign Affairs and ask the Beiyang government for his arrears?

There is another point, that is, the Beiyang government is about to fall, and it is still unknown whether the bald man in the south will admit this arrears.

The reason why he prevented Lei Bingyang from borrowing money from the Swedish government was to make China's face abroad look a little better.

After all, he is likely to live in Sweden for a long time in the future, and he can't let people with ulterior motives poke his backbone every day with this matter.

All in all, it was more like a break for him.

Chen Muwu came to Sweden this time, and he didn't bring much money at all.

And now there is no magnetic stripe card from the bank, no Visa and MasterCard, no Alipay and WeChat transfer, even if Chen Muwu has money, he is a small rich man worth tens of thousands of pounds.

Although he agreed to Lei Bingyang's loan, it was still a question where he could quickly raise the money.

It is certainly unrealistic for him to return to the UK to get money for Lei Bingyang.

So what about borrowing money from the Swedish crown prince or Marcus Jr.?

Chen Muwu felt that something was wrong.

In this way, he still borrowed money from the Swedish side, but the borrower changed from the Chinese Legation in Sweden to Chen Muwu, and the lender changed from the Swedish government to one of his two friends.

Fortunately, Chen Muwu quickly found the source of his money.

The prize money for this year's Nobel Prize in Physics is less than 130,000 Swedish kronor.

Because three people won the award together, and the reasons for the award were two different reasons, Wilson who invented the cloud chamber got half of it, which is more than 60,000 Swedish kronor.

The remaining half was divided equally between Zhao Zhongyao and Cockcroft, each of whom could also receive more than 30,000 Swedish kronor.

It is this money that Chen Muwu is eyeing, and he plans to borrow the Nobel Prize prize from others.

Professor Wilson was not easy to speak, because he had already invented the cloud chamber long before Chen Muwu arrived at the Cavendish laboratory.

His Nobel Prize this time can only be said to have something to do with Chen Muwu, but not much.

The remaining two people were all successful particle accelerators under the command of Chen Muwu, and Chen Muwu borrowed money from them, so there was no psychological burden.

Cockcroft is already married, and it seems that he has added a child this year.

Chen Muwu didn't open his mouth to him, but let him remit the money to his home as soon as he received the bonus.

The one who opened his mouth to borrow money was the remaining winner, Zhao Zhongyao, who is still alone.

Zhao Zhongyao has no family affairs in the UK, and if he remits the prize money to China, he will have to pay a lot of money for the handling fee alone.

So he just got a check with the amount of the prize money from the Nobel Prize jury, and planned to exchange the check for the equivalent of pounds sterling before leaving Sweden after Chen Muwu was busy with the construction of the cyclotron in Stockholm.

Chen Muwu is eyeing this bonus, anyway, Zhao Zhongyao is in Sweden during this time, and there is nothing to spend money on.

So after hearing Chen Muwu's request for money, Zhao Zhongyao quickly agreed and gave all the more than 30,000 Swedish kronor bonuses.

In this way, after leaving Sweden and returning to the UK, Chen Muwu will directly return more than 2,000 pounds to Zhao Zhongyao.

There is no middleman to make the difference in the price of borrowing and repaying between them, and it can also save Zhao Zhongyao a conversion fee incurred when the Bank of Sweden exchanging Swedish krona for pounds.

After Chen Muwu got the check lent to him by Zhao Zhongyao, he immediately called the Chinese Legation in Sweden.

Lei Bingyang came to pick it up in person, and said a lot of words of gratitude to Chen Muwu.

Although in the next period of time, Zhao Zhongyao and Cockcroft will be invited by all parties in Sweden to give several lectures to people from all walks of life as new Nobel laureates in physics.

But for Chen Muwu, the Nobel Prize ceremony is over, and he can return to the physics laboratory at Prince College near Stockholm to continue his work on the cyclotron.

Because of the presence of the Swedish crown prince and Marcus Jr., the efficiency of the factory on the Swedish side is very fast.

Within a few days after the Nobel Prize dinner, Chen Muwu and his family received the glass cover that they had previously customized to the factory.

At this point, all the materials for this cyclotron model are ready.

The next task was to assemble them all together to see if the model could work smoothly and whether the particles that circled in the electric and magnetic fields could be successfully accelerated by the machine.

The assembly of the cyclotron model is even easier than that of Lego.

By the way, Lego, a toy manufacturer from Denmark, Sweden's neighbor, has not yet appeared, and it will not be until five years later, in 1932.

This building block that relies on children to play with is also a money-making tool for building block manufacturers that will be popular all over the world in the future.

Chen Muwu felt the need to talk to Marcus Jr. about his plans to enter the children's market, and although Denmark and Sweden are neighbors, they have been in constant confrontation throughout history.

The Swedish city of Malmö, across the sea from Copenhagen, the capital of Denmark, was originally Danish territory, but was later ceded to Sweden after being defeated in the war.

Now let Sweden grab a Danish national brand, Chen Muwu has no psychological burden in his heart.

If this children's toy factory is built, it can also produce Rubik's Cube and other children's toys in the future, so as to deepen the vast blue ocean of the children's market.

Even the marketing strategy, Chen Muwu has already thought of it for Marcus Jr.

It is only necessary to copy Volvo and say that these toys are educational toys that the Swedish royal family used to enlighten the prince and princess when they were young.

It's a big deal to invite the daughter of the Swedish crown prince, Princess Ingrid, who is known as the most beautiful princess of the European royal family, to come forward and endorse the toy manufacturer.

Chen Muwu didn't believe that those people had money, but Americans who didn't have much background would not be crazy about it.

They will definitely wave a lot of money in their hands, snap up the new children's toys that have just been launched on the counter of the department store, and let their children also feel what it means to educate the royal family in Sweden.

Chen Muwu feels that he is completely a conscientious businessman, and the only safety hazard of Lego toys may be that children are prone to swallowing those finger-sized blocks, which can cause suffocation.

But compared with the American toy manufacturers who put Geiger counters and radioactive elements in toy gift bags and let children play small and interested in physics, Chen Muwu feels that he is simply a living bodhisattva.

The more Chen Muwu thought about it, the more he felt that his idea was very reliable, and he decided to find another time to draw the design of the Lego bricks, and then tell Marcus Jr. about his new idea.

As long as the toy factory is successfully completed and put into production, and it starts to make money in Sweden, continental Europe, and the United States, then Prince College will have one more source of funding and may become the richest school in the world, surpassing American universities.

When the matter of the toy factory was still unclear, Chen Muwu had already begun to build blocks in the physics laboratory of Prince College.

The first is to install a mechanical switch for the radioactive particle source that has been borrowed from Uppsala University so that it can control the release of particles or not.

Then adjust the position, place the particle source in the center of the D-box, add an alternating electric field to the parallel ends of the two D-boxes, and install and fix the permanent magnet on the top and bottom of the instrument, which is used as the source of the constant magnetic field.

All that remains is to connect the cloud chamber that Professor Wilson had brought from England to the intended location of the particles.

So far, the entire cyclotron model has been basically assembled.

The final step was to cover all the parts on it with the glass cover that had just been delivered to the factory in Sweden.

Apply a generous amount of petroleum jelly to the crevices to prevent any leakage.

Then connect a vacuum pump to the preset hole position on the glass cover, so that the model of the cyclotron is in a vacuum environment.

At this point, the model of the entire cyclotron has been completely assembled.

The next thing to do is to turn on the power supply, start the machine, and verify whether the model can accelerate the particles in the particle source, so as to verify whether the theoretical model of the cyclotron proposed by Chen Muwu is feasible.

Of course, Chen Muwu knew that his theory was fine, but he still had to do it in order to be able to successfully convince others.

The couple had been staying in the physics laboratory at Prince College for so many days, and Chen Muwu had just gone out for a day to attend the Nobel Prize dinner.

By now, Zhao Zhongyao and Cockcroft have also finished all their publicity, speeches and interviews in Stockholm and returned to the laboratory.

Five people gathered around a radius of fifteen centimeters, and even if a glass cover was added, there was not a single square meter of cyclotron, looking forward to the smooth and successful implementation of the first experiment.

Chen Muwu first turned on the power supply and generated an alternating electric field between the two D-boxes to accelerate the particles.

Then turn on the mechanical switch, let the alpha particles emit from the radioactive source, accelerate through the alternating electric field again and again, and then do a circular motion in the D-box again and again, and the speed of the alpha ions is getting faster and faster.

The radius of the circular motion of the alpha particles becomes larger and larger, and finally, they exit at the edge of the D-box and enter the cloud chamber that has been prepared for a long time, where a picture of the trajectory is taken to calculate how much energy the alpha particles carry after being accelerated by the cyclotron.

Because the possibilities were foreseen in advance, the experiment to test the cyclotron model went smoothly without any unexpected errors.

The camera also successfully captured the negative of the outgoing alpha particle trajectory, and Chen Muwu turned off the radioactive source and stopped the power supply to the cyclotron, and the first phase of their experiment came to an end.

After some simple calculations, using this cyclotron model with a radius of 15 centimeters, the energy of the alpha particle can be accelerated to hundreds of thousands of electron volts.

Although this value is not even comparable to the electrostatic particle accelerator in Cavendish Laboratory, the acceleration energy difference between the two is an order of magnitude.

But know that this model of a cyclotron built in Stockholm has a radius of only fifteen centimeters.

If the radius is extended to 50 centimeters in the future, to a number of 1 meter, 5 meters, or even larger, then how far the particles can be accelerated, that value is so beautiful that it is unimaginable.

Even if the acceleration is at the end, because the particle speed is too fast, there will be a relativistic effect, but in the end, the energy of the particle will be much greater than that of an electrostatic particle accelerator.

Moreover, Dr. Chen has long proposed the improvement method he envisioned in response to the relativistic effect of accelerators.

He proposed that the frequency of the alternating electric field be synchronized with the speed of the particle's circular motion, which is difficult to achieve in practice, but it is a good way to solve the relativistic effect.

However, synchrotrons are still too long ago for the current situation.

Now, by increasing the radius of the cyclotron from 15 to 50 centimeters, the energy of the outgoing particles can reach the order of one million electron volts, which is more than the electrostatic particle accelerators that have appeared in physics laboratories in universities around the world over the course of this year.

Among the five people present, four of them were very excited, and only Chen Muwu with a calm face remained.

Through this model, the theory of cyclotrons was successfully proved to be accurate, and the mission of several of them to Stockholm was almost completed by the end of 1927.

All that remains is to wait until next year to build a truly operational cyclotron at Prince's College as a tribute project to celebrate the opening of Prince's College.

The Nobel Prize was awarded on December 10, the day of Nobel's death.

By the time Zhao Zhongyao and Cockcroft finished a series of work in Stockholm, the time had come to mid-to-late December.

The Curies and Cockcroft are Europeans, and for them, Christmas is the most important thing of the year.

So after the cyclotron model was validated, the three men left Sweden and returned to England and France for Christmas.

At this moment in Stockholm, there are only two people left, Chen Muwu, who is waiting to receive the Royal Polaris Medal on the New Year, and Zhao Zhongyao, who is not very interested in Christmas, the Western winter solstice.

(End of chapter)