143 Is room temperature superconductivity feasible

Chen Muwu, who has been immersed in Davy Faraday Laboratory in London, does not know much about the news from Cavendish Laboratory.

During this period, Oppenheimer came to London from Cambridge University.

But since Chen Muwu left at the beginning of the year, he has been following Old Tomson around, and he doesn't know or want to know about Rutherford's side, and of course he doesn't know that Rutherford's most relied on deputy Chadwick is going to get married.

Chen Muwu was bent on making money and awards, and he didn't have so much time to contact his feelings.

If it weren't for the discovery of heavy hydrogen this time, perhaps he would not have written to Rutherford.

After all, although plexiglass is profitable, it is not an important experimental achievement.

If you write a letter to the teacher to inform you of the good news, you may be scolded by Rutherford.

Because in the eyes of a pure experimental physicist, engaging in theories is a sideshow, and engaging in inventions, and chemical inventions, is completely unprofessional.

Even about heavy hydrogen, Chen Muwu didn't expect his teacher to have such a big reaction at first, not only ran from Cambridge in person, but also called Chadwick, who was about to get married, from Liverpool to London.

Chadwick, who was born in 1891, can be regarded as a model of late marriage and late childbearing.

He is 34 years old this year, but Chen Muwu remained single until he left Cambridge University at the beginning of the year.

It's not that Chadwick doesn't want to get married early, it's just that when he was young, he encountered a huge bad luck.

Ten years ago, he was Chen Muwu's age.

Chadwick, who had just completed a Master of Science degree from the University of Victoria, was awarded a research scholarship in 1851 that allowed him to temporarily leave Manchester under Rutherford to study in Germany.

By the second year of Germany, World War I had broken out.

Chadwick, who was still in Berlin, was directly taken prisoner by the Germans and put in a prisoner of war camp.

In the years since Chen Muwu's achievements, Chadwick can only count the stars in the prisoner of war camp.

By the time the war was over, he had returned to England as a twenty-seven-year-old young man who had not yet received his doctorate.

Thinking of starting a family first and then starting a career, he followed Rutherford from Manchester to Cambridge, and obtained a doctorate in philosophy from Gonville and Case College of Cambridge University by his own efforts.

Because of Rutherford's appreciation, he was appointed deputy to the Cavendish laboratory.

Chadwick is now finally successful in his career, and he is starting to think about starting a family.

At the beginning of the year, while at home in Manchester, he happened to visit Liverpool, where he met the daughter of a Liverpool Stock Exchange broker.

The relationship between the two heated up rapidly, and in the summer, they were already thinking about getting married.

Just as he was preparing for the wedding, Rutherford called him by telegram.

"Congratulations, Mr. Chadwick! If it weren't for your arrival in London, I wouldn't have known you were getting married. I'm really sorry to make you come all the way when you are busy preparing for your wedding. ”

Although Chen Muwu was very embarrassed, he always had to say polite words.

"It's still business, I get married two days early and two days late, and it doesn't get in the way. Sir Rutherford said that this discovery of yours is very great, and that it is not possible to find evidence of the existence of neutral particles in atomic nuclear power from it. ”

"The teacher has already told me this morning his idea, he wants to bombard heavy hydrogen nuclei with hydrogen nuclei, and if he can find something other than protons in the nuclear reaction products, maybe the newly formed product is an electrically neutral particle.

"It's just that there is no better way to speed up protons at the moment, so I suggested to my teacher that it would be better to build an accelerator in the Cavendish laboratory."

Chen Muwu began to fool around the construction of accelerators again, although he found that neutrons did not need accelerators to accelerate alpha particles.

But the idea of bombarding deuterium with hydrogen nuclei was proposed by Rutherford, who could just pull the banner and pull the tiger's skin.

While Chen Muwu and Chadwick were talking about the accelerator, Kapitsa was staring at the spectrum on the glass negative, thoughtful.

"Chen, have you ever failed since you arrived in the UK? How do I feel that no matter what you do, you are successful? And these successes seem to come easily, without any effort. ”

Chen Muwu felt that Kapitsa's next sentence would be a clichΓ© again, and asked him why he was so successful.

But he still underestimated the brain circuitry of the Russians, and he couldn't think of what Capitsa said next: "Although you are the best student of the old crocodile, you are not the best person of James." ”

James is Chadwick's name, and Kapitsa, who is three years younger than him, has no problem calling him by his first name, but Chen Muwu, who is nearly a round younger than him, has always called him by his last name.

The best student is the best student, but the best man is not the best person, but the best man at a special wedding.

Kapitsa made a pun, as if he was showing off his status as the best man.

"Peter, you're right, I really can't compare to you in this respect, because I have the impression that the best man should choose the ugliest one among his friends, in order to bring out the groom's height and handsomeness."

Chen Muwu made a joke with his good friend, but he was thinking about something else.

Kapitsa is already married, how can he still be someone else's best man?

But he couldn't ask directly, because Capitsa's first wife had died a few years earlier because of the Spanish flu.

Chen Muwu could only guess in his heart, perhaps because of the different customs, the British may not be taboo about this matter.

The next day, Aston, who had lent Chen Muwu a vacuum pump and was reciprocated by Xiao Chen, gave him a vacuum pump with higher accuracy, also came to London from Cambridge.

As an expert in isotope research, Rutherford invited him to the Davy-Faraday laboratory to confirm that Chen Muwu had indeed discovered the isotope of hydrogen.

In fact, the line on the spectrum is very clear, and Aston doesn't need to confirm anything.

He was more like Rutherford had brought in to endorse his students.

The people of Cavendish Laboratories ran to the Royal Research Institute to build a team, and the old Prague, as the director, was helpless.

In terms of seniority, he can be regarded as Rutherford's teacher.

When Rutherford was still growing potatoes in New Zealand, Prague Sr. was already a professor of mathematical physics at the University of Adelaide in Australia.

On his way out of New Zealand to study in England, Rutherford visited the ship when it docked in Adelaide and asked old Prague about living in England.

But in terms of status, old Prague is now no match for Rutherford.

Although everyone is a fellow of the Royal Society, and they are all in charge of a laboratory, Rutherford is about to take over as the president of the Royal Society, and his Cavendish laboratory is much better than the Royal Institute in terms of funding, talent, and research results.

The only thing that Old Prague could beat Rutherford was that he won the Nobel Prize in Physics.

But there was no way to say this, as soon as he said it, he was afraid of his old arms and legs, and he couldn't resist the fists of the strong New Zealand man.

Both Rutherford and Aston have named out to bring more heavy hydrogen back to the Cavendish lab for research.

The former is still thinking about his bombardment experiment, while the latter wants to put heavy hydrogen nuclei into a mass spectrometer and try to measure some of the physical and chemical properties of heavy hydrogen.

With their mouths open and their legs broken below, Chadwick and Kapitsa hurriedly took up their posts in this laboratory after Chen Muwu's simple training.

They have to use the time of these few days to produce the heavy hydrogen that the two people want.

And why didn't Chen Muwu do it himself?

Unlike Chadwick and Kapitsa, he was a distinguished Fellow of the Royal Society, and he was going to the Royal Society with Rutherford, Prague Sr., and Aston to attend a lecture on the discovery of heavy hydrogen nuclei.

Chen Muwu was naturally the keynote speaker of this report meeting.

Rutherford, who presided over the meeting, proudly announced to the audience that this was the first time that the discovery of a heavy hydrogen nucleus had been announced to the world.

But in fact, on the first day he arrived in London, he asked Chen Muwu to send the news and photos of the discovery of heavy hydrogen to the editorial office of Nature.

Compared with Rutherford's first reaction to whether he could find the electrically neutral particles in the nucleus of the atom from the heavy hydrogen nucleus, the monks present were relieved when they heard that the heavy hydrogen nucleus had been discovered.

The discovery of heavy hydrogen nuclei has finally made it clear why the same pure water, which is very pure, has different densities measured around the world.

There are also people who draw inferences, since there are heavy hydrogen nuclei with a mass of 2 relative to the atomic mass, are there any heavier hydrogen nuclei with a mass of 3?

What is the maximum relative atomic mass of hydrogen isotopes?

Chen Muwu's stupid method of evaporating liquid hydrogen at low temperatures to find deuterium may not be suitable for tritium.

Because the stock of tritium in hydrogen is very small, 0.016% of the hydrogen atoms on the earth are deuterium, but only 10 billionth of the 18th power, that is, 10 billionth of tritium.

To find tritium, it still requires a miracle, although Rutherford's vision is that bombarding a deuterium target with a hydrogen nucleus will not yield neutrons.

But he then used a deuterium nucleus to bombard the deuterium target, and finally discovered for the first time the existence of tritium, which has a relative atomic mass of 3.

It's just that the premise of discovering tritium is to build an accelerator first.

After introducing the discovery process of heavy hydrogen, Rutherford led everyone to discuss what name should be given to this heavy hydrogen.

As the discoverer of heavy hydrogen, Chen Muwu was the first to say that he had no interest in naming the isotope.

From his seat, he watched with boredom the discussions of the Fellows of the Royal Society, whose Greek came with their mouths open, and who frequently quoted from the scriptures.

Chen Muwu has always found one thing very amazing, that is, why do different isotopes of hydrogen have different names and symbols, but isotopes of other elements do not have this treatment?

The next day, the scientific edition of The Times reported on yesterday's meeting of the Royal Society under the headline "The Last Man Who Knows Everything".

And the person described in this title is, of course, Chen Muwu.

Chen Muwu was reading the day's newspaper in David Faraday's laboratory, when a new guest came to visit.

This one can be regarded as coming from afar, and he is a little closer than Chen Muwu, who came to the UK from China.

The Indian with a turban on his head reported to his home in English with a South Asian accent: "Hello, Dr. Chan, I'm Chandrasekhara Rahman from the University of Calcutta, India.

"I heard your report yesterday at the Royal Society, and learned that you are now conducting research at the Royal Institute, so I came to pay a visit."

Rahman became a Fellow of the Royal Society in 1924, and the elder Prague was elected while teaching at the University of Adelaide.

Neither of them had achieved any scholarly results at the time, but it seems that the Royal Society was particularly tolerant of them teaching and preaching kinghood in several colonies, and the threshold for membership was very low.

In contrast, if you stay in England and do research, it will be very difficult to get into the Royal Society.

Chadwick would not become a Fellow until 1927, and Kapitsa would not be until two years later.

Following De Broglie, Chen Muwu was once again approached by the owner.

Raman had been studying the magical phenomenon of visible light scattering for a long time, and then he was intercepted by Chen Muwu.

He would never have imagined that it was actually Chen Muwu who published his research results ahead of time, and expressed his gratitude to Dr. Chen for solving the problem that had been bothering him.

Of course, Raman did not come to the door this time not only to say thank you, as a pioneer of physics education in India, he also wanted to discuss with Chen Muwu where the future direction of physics is.

Hearing this topic, Xiao Chen suddenly became interested, he took Raman to the laboratory where he discovered heavy hydrogen, pointed to the machine surrounded by Chadwick and Kapitsa, and introduced: "Professor Raman, please see, it was on this machine that I discovered the first isotope of hydrogen.

"It's just that this is just a serendipitous discovery, and I bought this machine with the intention of studying superconductivity in low-temperature physics.

"I think superconductivity is like a mountain with a lot of treasures, and people are far from studying and understanding it.

"We can now achieve superconductivity at 7 Kelvin, so can we find superconducting materials at 10 Kelvin? With the deepening of research, will the critical temperature of superconductivity be higher in the future? A hundred Kelvin? Two hundred Kelvin? Or even three hundred Kelvin room-temperature superconductivity? ”

Since you Indians can fool the world and say that you have found the material of room temperature superconductivity, then of course I, Chen Muwu, can fool you Indians in advance!

Have you eaten the room-temperature superconducting melon that the third brother made recently? I feel more like a cheater, and it belongs to the third brother's basic exercise.

(End of chapter)