"Mr. Strauss, it's a pleasure to meet you." Li Kangping sent greetings.

"Me too." Mr. Strauss shook hands with Li Kangping, and they knew each other.

The floor-to-ceiling windows of the living room face 43rd Street, and Li Kangping stands by the window, observing the view of the theater district.

The alley downstairs is full of taxis, people in the cars snuggle together, they sing, they laugh, they smoke, they drink, they splurge everything, they enjoy the moment. A group of black children play in a muddy puddle at the entrance of the alley, and the white people take a detour to avoid getting wet.

The impoverished little clerks wandered in front of the shop windows until they went to the diner alone for a meal to pass the night and the hardest time of life. The playboys pick out a few amorous women from the bustling crowd, and the drunken men and women disappear into the twilight.

The theater area is alive and vibrant, dazzling, elegant and popular, and the upper and lower class coexist.

"This is New York." Mr. Strauss paced to Li Kangping's side.

Li Kangping said: "Yes, this is New York, where the American dream begins. ”

"Huh." Mr. Strauss smiled with a complicated expression, and he asked, "Have you seen a play in the theater district?" ”

Li Kangping pointed to the various men, women and children on the street outside the window, and said, "Isn't this just a play? ”

"Oh, that's right, that's the play. Lee, do you want juniper berries? Or whiskey? ”

"Whiskey, thank you."

This high-end apartment in the theater district is not actually Zhou's house, but Strauss's house, which Strauss rents to Mr. Zhou for a very low price.

Members of the New York Chinese Alumni Association have arrived at the apartment, most of them international students from Columbia University, but also a small number of international students from New York University and other smaller colleges.

The New York Chinese Alumni Association holds regular gatherings, and this is the first time Li Kangping has attended a party.

"Brother Debang!"

"Kangping."

Li Kangping met Brother Debang and talked with Brother Debang.

"To publish in a journal of the American Chemical Society, must I be a member of the American Chemical Society, or be recommended by a member of the Society?" Li Kangping asked.

"That's true." Brother Debang has joined the American Chemical Society, and he is quite well-known in the American chemical community.

Li Kangping asked: "The Science of the American Association for the Advancement of Science, and the Physical Review of the American Physical Society, are the same regulations?" ”

Brother Debang said: "As far as I know, yes. ”

At this time, a person arrived at the apartment, this person was heroic and radiant, and at first glance he was not an ordinary person.

Brother Debang shook hands with this gentleman, and then introduced this gentleman to Li Kangping: "This gentleman is Changsha Jin Yuelin, Yue Lin was admitted to Tsinghua School in the same year as me, and is now studying for a doctorate in political science at Columbia University. This virtuous brother is Li Kangping of Guangzhou, a student of Tsinghua University, who is currently studying at Columbia College. ”

Li Kangping shook hands with Brother Yue Lin: "Brother Yue Lin, look up for a long time!" Kang Ping was very fortunate to see Brother Yue Lin. ”

"Virtuous brother doesn't need to be polite, since you and I have already met, we will be brothers in the future." Brother Yue Lin said heartily.

After a while, another decent person came to the apartment.

Brother Yue Lin exchanged a few words with this decent person, and then introduced the decent person to Li Kangping: "This is Haining Xu Zhangyu." ”

"It turned out to be Brother Zhang Yu, fortunately."

Li Kangping shook hands with Brother Zhang Yu, and he suddenly felt that Brother Zhang Yu was a little familiar.

Ruya Siwen's appearance, middle-parted hairstyle, wearing glasses, a native of Haining, Zhejiang, Brother Zhang Yu He is Brother Shima!

Xu Zhangyu is not from Tsinghua University, he graduated from Peking University and is now studying for a doctorate in economics at Columbia University.

"Kangping is planning to major in physics? Very good. ”

Xu Zhangyu chatted with Li Kangping, without mentioning too profound academic theories, just blowing water.

After chatting for two minutes, Xu Zhangyu moved to Mr. Zhou's side, and after a whisper, the two entered the bedroom mysteriously.

The rest of the crowd talked in twos and threes, like a small party. The living room of the apartment is large enough for two dozen Chinese and an American to gather here, drinking foreign wine, eating foreign food, and talking about China thousands of miles away.

Mr. Zhou and Xu Zhangyu came out of the bedroom, everyone sat in a circle, and Mr. Zhou stood in the center.

Mr. Zhou, the core figure of this alumni association, said in an unhurried manner: "The arrogant people are too conservative, thinking that China has a culture of 4,000 years, which is beyond the reach of foreign countries, and that foreign legal systems are not enough. And after repeated defeats, they turn to worship foreign countries, and everything is based on foreign countries, and if there is something to do, it is said to be owned by a certain country. If we dare not do something, we will say that such and such a country has not done it, so how can our country do it? These are the mantras of the deliberators, and they change from arrogance to self-abandonment......"

Mr. Zhou's soft words actually had the effect of inspiring deafening.

The expressions of everyone were solemn, and the atmosphere of the party was suddenly depressed.

Mr. Zhou and Mr. Xu Zhangyu both belonged to the bourgeois democratic faction and advocated top-down reform.

This issue is extremely complicated, and Li Kangping is only listening, so it is inconvenient to say more.

When Li Kangping left the 43rd Street apartment, he was already a full member of the New York Chinese Alumni Association, and he had made many friends, and he should be familiar with each other in the future.

In view of the current experimental environment, Li Kangping felt that he should focus on theoretical physics.

After borrowing some literature from the library, Li Kangping began to draft a physics paper with creative ideas.

[Taking into account the relativistic mechanical formula, the mass of the light atom is taken as hv/c^2, that is, the quotient of energy versus the square of the speed of light.] Its momentum is hv/c=W/c...... The energy located in the volume element d^3x is W, and the number of light atoms with a momentum component between p and p+dp can be obtained by the following formula: dnw=Cexp(-W/kT)d^3xd^3p......]

The six-page dissertation was written by Li Kangping from early morning to late afternoon on his days off to complete the manuscript.

"I have named this paper 'Black-body Radiation and Light Quantum', Duke de Broglie, I wish you good health and a long life."

In the afternoon, Li Kangping went to Macy's in Manhattan's business district, where he was about to buy a typewriter.

The Underwood typewriter is a famous American brand, and the Underwood regular typewriter costs $220, and if you want to type mathematical symbols such as ∫ and ≡, you need to buy an academic version of the special typewriter.

The Underwood Academic Typewriter looks impeccable, and its only drawback is that it's too expensive, costing $550.

On the other hand, expensive is not a disadvantage of typewriters, but a disadvantage of consumers.

Li Kangping did not have this shortcoming, and he paid $550 for an academic typewriter.

It took a few hours for Li Kangping to figure out how to use the typewriter and type.

【F=-kTln{[∫∫∫∫∫∫exp（-W/kT）d^3xd^3p/g]^N·1/N！ }。 】

[I let F=-NkT, and it is very numerous, because the intrinsic mass of the light atom is 0.] 】

[In order to make the tables equal, I continue to make the following calculations......]

Click-click-click.

“Yes！”

Li Kangping is finished, "Blackbody Radiation and Light Quantum" is completed, the author is signed by K.P. Lee, and the mailing address is Columbia College, Columbia University.

On Monday morning, after listening to Professor Rothberg's atomic theory course, Li Kangping came to Professor Rothberg with his manuscript.

"Lee, what are your works?" Professor Rosberg asked with a smile.

Li Kangping presented the paper: "Professor, I have written a paper that I think is creative, and I want to show you. ”

Professor Rosberg took the paper and looked at it: "This time it's not a manuscript, it's a typescript, do you want to publish it?" ”

"Yes, Professor, I want to publish in Physical Review, so I have to get your recommendation."

Professor Rosberg is a member of the American Physical Society (APS), the journal of APS, and Professor Rosberg is qualified to publish in Physical Review or recommend non-member publications.

"Blackbody Radiation and Quantum of Light?"

Professor Rosberg quickly reviewed the paper, and this time he did not say that you came to the office to find me at noon or afternoon, but frowned and said: "I don't know why you wrote this, and I can't understand what you wrote in a very short time, Li, you go back first, I will come to you after I understand." ”

After leaving the classroom, Li Kangping bought a newspaper and sat under a tree to read it.

Madison Square is a daily rally and march where people protest against low wages, high taxes, and law-abiding citizens who make a hard living, and moonshiners who ignore the law make a fortune.

President Wilson was denounced as a dictator, and the American people wanted Mr. Henry Ford to run and be elected as the new president of the United States.

"If the boss of a car company is elected president of the United States, will the American people live happier lives?" Li Kangping was skeptical.

But it has to be admitted that millionaires are considered a symbol of success, and success is revered and adored throughout the United States.

"No, it won't."

Suddenly, a man sat down next to Li Kangping.

"Brother Zhang Yu, good afternoon."

"Kangping must know that the United States under capitalism is full of crime and exploitation." Xu Zhangyuan looked up to the sky and sighed, looking depressed.

Li Kangping humbly asked: "Dare to ask Brother Zhang Yu, how to solve the contradiction between socialized large-scale production and private ownership of the means of production?" ”

Xu Zhangyu was stunned, he pondered this question repeatedly, for a long time, he said sadly: "I originally admired the reform of Westernization, is industry to save the country, so I went to the United States to study economics, but I saw with my own eyes in the United States, children risking death to climb into the chimneys of factories, the blood and sweat of laborers in exchange for unequal meager remuneration, I asked myself, can the Western legal system and model really save the country and benefit the people?" Kang Ping's question goes deep into the lifeblood of the bone marrow and touches the essence of philosophy, and it is difficult for the foolish brother to answer the question of the virtuous brother, so I want to go to England to seek answers. ”

"When will Brother Zhang Yu go to the UK?"

"Within this month."

"Brother Zhang Yu is going to give up his doctorate in economics from Columbia University?"

"Hmph, what's the use?"

Li Kangping questioned: "Isn't the English island also the Western world, and the island really has a way to save the world?" ”

Xu Zhangyu said firmly: "I want to worship under Mr. Russell, and I don't dare to say anything to save the world, but to save my ears." ”

Li Kangping didn't talk for long when he first met Brother Zhang Yu, but this time the two talked for a long time.

Brother Zhang Yu's ideological realm has reached the fifth layer, and Li Kangping is not so high, he can only do something within his ability.

Xu Zhangyu's family is well-off, and he went to the UK to study at his own expense.

is about to go to the UK, Xu Zhangyu said that there are many things in the house he rents that he can't take away, and Brother Kang Pingxian has to come to my house these days and take whatever he likes.

The next day, Li Kangping went to the bookstore and bought a copy of the American bestseller "The Blood of the Four Horsemen Spilled the Soul of Freedom".

Turning to the title page, Li Kangping took the pen and wrote a blessing in Chinese:

"Life is precious, but love is even more valuable. If it is free, both can be thrown. Kang Ping presented Brother Zhang Yu. ”