The next day, Li Kangping went to the White Brothers Mahjong Club for field research.

The scoring rules for base points and self-draw/flush doubling have been approved by all members of the club.

Whether there will be detailed rules in the future is up to Uncle Jim and his friends to discuss.

Jack asks Uncle Jim to buy an ivory mahjong set, and Jack pays $500 for the set.

Yes, Li Kangping heard it right, a set of ivory mahjong sells for $500 at this club!

When you think about it, it's not surprising.

At this stage when mahjong has just entered the United States, mahjong friends must be people who have a little money and free time.

"My friends on Long Island will love mahjong."

Jack left the club with $500 in ivory mahjong, and a spark could start a prairie fire, and Jack learned mahjong at the White Brothers Mahjong Club, and then consciously and voluntarily promoted mahjong.

With the popularity of mahjong games, the demand for mahjong is bound to increase.

Li Kangping's first thought was to open a mahjong manufacturing factory in the United States, but this project was very large and did not happen overnight.

When he came to the Western Union store, Li Kangping sent a telegram to his father:

"American mahjong, quickly popularized, a set of mahjong, five hundred dollars. White brothers, Shanghai purchase, cost price, I don't know for the time being. This kind of business opportunity should not be missed, and I implore my father to buy mahjong and send it to New York, and I will handle it. ”

Li Kangping not only did not ask his father for money this time, but remitted 5,000 US dollars to his father.

You can buy as much mahjong as you can in China for $5,000, and if the purchase price is lower than that of Shanghai Commercial Bank, it is even better. This is the business information that Li Kangping revealed to his father.

Shipments from China to the United States, whether on the Pacific route or the Malacca-Indo-Atlantic route, take at least two or three months.

Li Kangping patiently waited for news from China, and he entered the spring semester of Columbia University while waiting.

On the first day of school in the spring, Li Kangping received a transcript from the previous semester, with an A in electromagnetism and an A in calculus. Counting the A+ Atomic Theory, his grades last semester were close to perfect.

Li Kangping auditioned three courses and then enrolled in these three courses, German, Thermal, and Mechanics.

Thermal science, mechanics are used for the score, and Li Kangping really wants to learn the German course.

Textbooks in the United States are very expensive, and Li Kangping bought new books on atomic theory, electromagnetism, and calculus last semester, and spent a total of $40.

Li Kangping came to Allen's new dormitory, and Allen changed dormitories, and he changed to the master's dormitory building of the Columbia University Research Institute.

"Alan, you're in the hospital, and you're one step closer to being a physicist." Li Kangping sent congratulations.

"I'm lucky that I got the scholarship," Allen said. ”

"Allen, I remember you told me that your heat and mechanics are A's."

"That's right."

"Are there still textbooks on heat and mechanics?"

"It's been sold a long time ago."

"Oh, Alan, I knew it would be the answer, and I wasn't surprised."

"Li, looks like you want to buy second-hand textbooks?"

"Yes."

"It's not like you, you're short of money?"

"Please, I often buy second-hand goods, and my car is second-hand."

"Your car is almost the same as a new car, tell me, Lee, are you short of money?"

Li Kangping asked expectantly: "If I am short of money, will you lend me money?" ”

Alan grimaced: "You know, my scholarship is just enough for me to pay for my tuition. ”

Master's students are still considered students, and of course students have to pay tuition fees. Alan has been in a tight financial situation, and he has been nervous from undergraduate to master's level.

"I'm not to the point of poverty, but prices are rising rapidly, saving a dollar is a dollar, and there is no shame in buying second-hand books." Li Kangping said.

Allen smiled bitterly: "Chinese billionaires are going to start saving money, and they can't live this day." You go to Trinity, where you can buy all kinds of second-hand goods. ”

"By the way, Alan, I want to know who your mentor is at the Institute?"

"Professor William Woodgate, an extremely critical professor."

"He's really picky. I'm going to Trinity, goodbye. ”

Li Kangping is very familiar with the campus of Columbia University, and even if Allen doesn't say it, he knows that he should go to Trinity to buy goods.

Trinity means Trinity, and the Trinity Society of Columbia University was originally a religious society, but today, for some reason, this society has evolved into a second-hand goods trading society.

Li Kangping walked to the Trinity Society, where a sign was hung at the entrance of the society, which read: "We believe in God, and the rest of the people will be traded in cash." ”

The graduation season and the beginning of the semester are the busiest periods of Trinity Club, and many students come here to buy or sell, and the scene is extremely lively.

Li Kangping spent fifteen dollars to buy second-hand textbooks on German, heat, and mechanics. This semester is an important semester, and Li Kangping plans to obtain a bachelor's degree from Columbia University in this semester, and then apply for admission to Columbia University's graduate school.

“Darf，dürfte，，soll，sollte，wäre，würden。”

Under the guidance of the German teacher, Li Kangping studied German seriously.

There are similarities between German and English in terms of grammatical structure, with German having less vocabulary than English, and Li Kangping learns --- memorize words from the most basic steps.

Learn a new subject and bring back your passion. Li Kangping was passionate for a few days and received a large envelope.

Open the envelope and include a sheet of paper, a copy of Physical Review, and a check.

"Mr. K.P. Lee, your paper "Black-body Radiation and Quantum of Light" has been published in the latest issue of Physical Review. The attachment fee is $300. Thank you for your contributions, and look forward to the next cooperation. Your sincerest Tom S. T. Jones. ”

Oh, that's great.

Li Kangping flipped through the latest issue of Physical Review, and his "Blackbody Radiation and Light Quantum" was published at the end.

Savoring "Blackbody Radiation and Light Quanta", Li Kangping felt that his version was more delicate than the De Broglie version in his memory.

De Broglie's version is written in a more general way, and we are not completely copying the Duke de Broglie, but we borrowed the creativity of the Duke de Broglie.

De Broglie had academic brilliance and major academic mistakes in his lifetime. Modern physics is a huge and complex system, and some correct theories are considered wrong, while some erroneous theories appear in textbooks and academic literature. With the passage of time, the correct theories were rehabilitated, and the erroneous theories quietly withdrew. If you don't know the history of physics and copy a wrong theory, you're dead.

"This paper of mine is exemplary, with a neat format, novel content, rigorous argumentation, and good citations."

Li Kangping objectively evaluated his thesis. Knowledge changes the financial situation, and the manuscript fee of $300 is still quite generous.

Columbia College Senate has a policy that undergraduate students who have published papers can redeem them for credits. The value of the redeemed credits depends on the value of the paper.

Li Kangping took the Physical Review, Tsinghua School Graduation Certificate, and the registration form for Atomic Theory/Electromagnetism/Calculus to the Academic Council of Columbia College.

"Mr. MacDonald, I'm K.P. Lee from Columbia College, and my physics paper was published in the latest issue of Physical Review, and I want to redeem credit." Li Kangping presented Physical Review and other documents.

"Oh, it's not Fashion, it's not Life, it's Physical Review!"

Mr. MacDonald confirmed that the journal was indeed Physical Review, and he said, "Yes, this is Physical Review!" ”

"Lee, you published a paper in Physical Review, black-body radiation and light quanta, what the hell is this?"

"Blackbody Radiation and ......"

"Mr. Li, you don't have to explain, I don't understand your explanation." Mr. MacDonald, who flipped through "Blackbody Radiation and Light Quanta," said: "You are the only author of this paper, and you have thanked Professor William Woodgate and Professor Arthur Compton at the end of the paper. ”

"Mr. MacDonald......"

"I don't have to explain, I'll check with these two professors, and yes, I'll be sitting in Professor Woodgate's office in an hour."

Mr. MacDonald then flipped through the rest of Mr. Li's papers, and as he read them, he said, "The Tsinghua school diploma is equivalent to 40 credits at Columbia College. Atomic Theory, Electromagnetism, Calculus, you get A+ and A, which is 30 credits. Let me take a good look at what Professor Rosberg has to say to you. ”

"Mr. K.P. Lee has an excellent talent for physics and superb mathematical skills, and he deserves an A+." After reading this comment, Mr. MacDonald said, "Mr. Lee, it seems that you are very favored by the professors. I'll keep your information for the time being, and you'll be sitting here again tomorrow morning at ten o'clock. ”

"See you tomorrow, Mr. MacDonald."

Li Kangping left the Senate office and went to a German class.

Quite a few Jews speak German, this is the conclusion that Li Kangping has reached.

On the drive from Columbia to East Harlem, Allen had been speaking German--- which was Lee's request.

Allen wanted to borrow a Ford from Li Kangping for one night, and Li Kangping agreed, and in exchange, Allen taught Li Kangping German for two hours.

Oppenheimer's Restaurant became a frequent dining place for Li Kangping and Allen, and the meal was arranged at Oppenheimer's Restaurant.

Master Robert attended boarding high school, and he never saw Master Robert again after the school started.

Oppenheimer's restaurant is a little more upscale than the Cairz chain on Fifty-Nine and Thirty streets, and the Oppenheimer family should not only make money from this restaurant, but also more like a meeting place for Jews.

At ten o'clock the next morning, Li Kangping visited Mr. MacDonald on time.

"Lee, this thesis of yours is equivalent to 30 credits, which means that you have already earned 100 credits, and these 100 credits will allow you to earn a bachelor's degree from Columbia University."

"Great! Thank you, Mr. MacDonald. ”

"You can start writing your graduation report." Mr. MacDonald said, "The Physical Review paper is here with an A+ and two A's, and your graduation report will be accepted by the Senate very quickly, and you can start drafting your application for admission to Columbia University's graduate school while you write your graduation report." If you want to stay at Columbia. ”

"Of course I'd like to stay at Columbia."

"Will you study physics?"

"Mr. MacDonald, you know, I love physics."