Back to the Republic of China to be a editor

Even if you sacrifice for your ideals, you have to sacrifice something worthwhile. Earning a posthumous reputation is not as good as working hard before you die.

Before Li Furen's sick bed, Tang Hua sent a condolence gift and exchanged a few greetings to express his concern.After all, they have both worked in the newspaper publishing industry, and Li Furen and Tang Hua still have some common topics.

"Mr. Tang, I seem to remember," Li Furen said slowly, lying half-lying, "You are the...boyfriend of Queen Zhou Xuan, right? You left without saying goodbye, Zhou Xuan has been looking for you."

Tang Hua was startled, and the hands that were peeling the apple stopped.

"Shanghai, Nanjing... Even the entertainment circle in Xi'an knows about you and her." Li Furen slowly turned his head and glanced at Tang Hua, smiling rarely, "Everyone guessed that you might have gone to the Liberated Area , but there is no evidence. Zhou Xuan wanted to come to Yan'an to find you, but the traffic was cut off. Well, you are here."

Chapter 22, Basic and Applied Sciences

"Mr. Shen, I hope you and the Democratic League will not disclose the news about my presence, please." On the way back, Tang Hua said to Shen Hu seriously.

Shen Hu nodded solemnly, and then smiled again, "Mr. Tang is really enviable and admirable. He is rich in youth, talented, and loved by big stars. This is what I envy. For the sake of revolutionary ideals, I have given up Family property, plunge into the torrent, this is admiration..."

"Okay, okay, Mr. Shen, besides, I'm going to feel ashamed," Tang Hua said, "Family and country are inseparable, and ideals and life are mostly difficult to balance. I owe Zhou Xuan too much for choosing this path. Thousands Don't say anything admirable."

"What's the plan for the promotion of the people in the future?" Shen Hu asked Tang Hua, "Your party has just been established, do you have some development strategies?"

"The People's Procurement Promotion has just been established, and many programs and development plans are still in the early stages," Tang Hua said. "The idea of ​​Uncle Cai and Uncle Li is to find dissatisfaction with Chiang Kai-shek's actions in the Kuomintang party first, and to uphold the original intention of Mr. Sun's revolutionary ideals. Members are included in the ADMO team. In addition, ADCA is in contact with the Democratic League, and it does not rule out the possibility that the two parties will merge into one in the future. After all, they are anti-Chiang factions initiated from within the KMT. But for now, I think the primary goal of the promotion is to survive, to allow the organization to survive safely."

The two walked and chatted for a while. "Mr. Tang, not far away is the location of our Liaison Office of the Democratic League, shall we leave for a while?"

"That's good, we will visit again when we have time, we also need to walk around more." Tang Hua said.

"Where is Mr. Tang staying?" Shen Hu asked.

"Live a little farther away, Wangjiaping."

After saying goodbye to Tang Hua, Shen Hu walked for a while, and couldn't help asking the clerk beside him: "This Tang Hua actually lives in Wangjiaping, isn't that where the ZG Central Committee and the Military Commission are stationed? Why do we have 93 The liaison offices of the society are all in Hezhuangping?"

"Mr. Tang is very familiar with the chairman, the commander-in-chief, and other high-level ZG officials," replied the clerk, who had stayed in Yan'an longer than Shen Hu, "Mr. Tang held a training class at Yan'an University, which seems to be very advanced. Both the chairman and the commander-in-chief often go to listen to his lectures. By the way, he is a top student at the U.S. Military Academy at West Point, and he also has a degree in electrical engineering..."

(If Tang Hua was by their side, they would probably be speechless again. Did many people in the country only hear about West Point in the US military academy? A simple sentence was passed around, and in the end, it turned out to be horrible.)

"That's right..." Shen Hu stopped talking.

……

Yan'an University, classroom.

"Okay. Students, this is the end of the time period for copying notes. In the next half hour, what I'm going to talk about should not need to take notes."

The slide shows the structural diagram of the Nazi Germany's "Little Red Riding Hood" anti-tank missile, and Tang Hua filled the blackboard with self-control principles and formulas and theorems of modern cybernetics.These contents are too difficult for the students of Yan'an University, but they still copied Tang Hua's slides and writing on the blackboard neatly, without any omissions and neat handwriting.Some students who have a drawing foundation even traced the schematic diagram of the weapon on the slide in their homework.Hearing what Tang Hua said, several of the students were obviously relieved, and put down their pens to rub their sore fingers.

"For more than a month, the students have been very motivated to study, willing to study hard, and not afraid of difficulties, which moved me very much." Tang Hua said, "Some students asked a lot of questions after class, and some students were not ashamed to ask, but I all know that the content is a bit deep for you. Sorry, there is not much time left for us. Before I came to Yan'an, I considered that there would not be too long teaching time. The teaching plans I prepared were about science and technology, weapons and equipment. An overview, but in the current situation, I have to compress the time to finish the overview of the Army and Air Force.”

"What I tell you in class is the latest technology and the latest scientific theories that have only recently been born in developed industrial countries. In fact, in the intellectual circles of these countries, these technologies and theories are still very difficult now, and they are only mastered and disseminated in a small area. So students don't have to blame yourself for this. Moreover, the current Yan'an University and Yan'an Academy of Natural Sciences focus on cultivating students' basic qualities in basic science, which also enables you to learn and understand applied science and engineering technology. When it comes to time, you have to make a bigger turn. ——Students, what is your understanding of basic science?"

"Basic science is the science that explores the basic laws of the development of nature." A student raised his hand and answered.

Tang Hua nodded, "The so-called basic science is the study of the most essential laws of matter movement. Strictly speaking, all phenomena in the universe can be traced back to the research of basic science, that is, mathematics, physics, chemistry, biology, astronomy, earth Science, logic, and their intersecting marginal disciplines. The four departments of the Academy of Natural Sciences: Physics, Chemistry, Geology and Biology, are all basic sciences except geology and mines, which are applied sciences. However, basic science and production The relationship between practice is relatively indirect, and it needs to go through a series of intermediate links before it can be transformed into material productivity. Then, why doesn’t Yan’an University become an industrial school that focuses on applied science and engineering technology and directly promotes production in the base area?”

The students made eye contact with each other, and it seemed that they were not very sure about the answers in their hearts, so no one raised their hands to answer.

"Because the basic conditions of our country are not enough." Tang Hua said the answer. "For example, there is no aviation industry in Yan'an now, so what's the point of running an aviation college? Automobiles, steel, machinery, chemicals... These industries are the same, not only in Yan'an, but also in the Kuomintang-controlled area. The current scale of our country The relatively large modern industrial products are probably only railways and ships. This is the most important reason why China now has Jiaotong University, and the quality is not bad. The birth of engineering colleges relies on and depends on this industry category. Sometime in the future , when our country started to build its own industrial system and corresponding industrial enterprises appeared one after another, engineering schools aimed at cultivating engineers and skilled workers were needed at that time; In the technical stage, we need a key engineering university that studies the applied science and engineering technology of this category to ensure that China can continue to innovate in this industrial field and is a leader in disciplines..."

"Everyone of Yan'an University is a seed. In the future of China, you should not only take root and sprout, but also flourish and grow into towering trees."

Chapter 23, physical persuasion!

"Mr. Tang, does the study of mathematics have any significance in promoting actual production and national construction?"

"Teacher Tang, physics..."

The last words sparked a big discussion among the students. Although it was time for get out of class to end, many students surrounded Tang Hua to ask questions.In the previous remarks, Tang Hua raised the status of applied science and engineering technology to a very high level, which really shocked the students a lot.

"Physics is also subdivided into many branches and types, such as theoretical physics and astrophysics, which belong to the category of basic science, but engineering physics, solid mechanics, and fluid mechanics are more applied." Tang Hua replied , "Although mathematics seems to be a subject of pure theoretical research, in fact, among its branches, there are also applied ones..."

"Mr. Tang," a student asked, "applied and engineering research requires such a large investment. If the country does not have an industrial foundation and cannot do engineering applied research, can we study theoretical physics first?"

Tang Hua smiled and said, "Perhaps the students think that studying mathematics and theoretical physics saves money. It seems that one person, one pen, and a stack of paper can start researching, right? Mathematics may not require too much investment for the time being. ——Except for occupying a few of the smartest brains. This is not the case in theoretical physics. The most cutting-edge theoretical physics research has long bid farewell to the era when one person, a pen, and a stack of paper contemplate the results. But now cutting-edge physics research is getting more and more The more we rely on large and expensive experimental instruments, or even experimental instrument systems, theoretical physics is a huge gold-swallowing behemoth for small and medium-sized countries and backward countries.”

Tang Hua wiped the blackboard clean and wrote a few words again.

"Elementary particle physics, cosmology, and unified theory were at the forefront of the development of physics in the 20s. What instruments do cosmology rely on? Large astronomical telescopes and radio observers. Astronomical telescopes are responsible for cosmic observations in the visible light band, and radio observers It’s also called a radio telescope—students, do you know about radio telescopes?”

Tang Hua looked at several students in the physics department.After a moment of silence, a student replied: "Radio telescopes are used to receive radio waves from the universe."

Tang Hua nodded, "In 1939, the American Grote Leiber built an antenna with a diameter of 9.5 meters, received radio waves from the center of the Milky Way, and drew the first radio sky map based on the observation results. The universe Stars not only emit visible light, but also emit electromagnetic waves with longer or shorter wavelengths than visible light, and even particle flows. If you want to study cosmic stars in depth, you need to build a larger radio with a wider acceptable wavelength band in the future. Telescopes. Can China build radio telescopes now? No. Moreover, even if Yan’an University is sold, it may not be able to afford a radio telescope. Without observation equipment, how can we conduct cutting-edge research in China?”

"Next, let's talk about elementary particle physics and unified theory. Contrary to cosmology, these two branches of theoretical physics study the laws of physics in the microscopic world. Their experimental instruments are the most expensive of these two: reactors and particle accelerators. "

Tang Hua wrote down these two nouns on the blackboard, "Everyone has learned about reactors in my previous courses. Building a reactor is expensive, and requires a variety of alloys, rare metals, and high processing precision for key parts. Particles Accelerator, I think you have learned in physics textbooks that Rutherford used natural radioactive sources to make a particle generator. After that, Cockcroft and Walton built the world's first particle accelerator in the Cavendish Laboratory. Protons are accelerated with a 70-volt high-voltage double accelerator."

"After that, the development of particle physics and accelerators was not mentioned in your textbooks. During World War II, Kester invented a new type of circular accelerator using the vortex electric field generated by electromagnetic induction. Based on this circular Shape/cyclotron structure, in 1944, McMillan proposed the principle of automatic phase stabilization, which gave birth to the quasi-resonance accelerator. When I left the United States, the first phase-stable accelerator had already started construction in Berkeley, which can put a Deuterons are accelerated to 1.9 times 10 electron volts."

"Now, Berkeley, Princeton, and Massachusetts universities plan to invest nearly 2 million U.S. dollars in the field of theoretical physics. You don't have to worry about whether particle accelerators can be produced in China. What does 10 million U.S. dollars mean? It is more than the national government's annual national education funding, which is enough to arm [-] national army-standard artisans. Moreover, this level of funding will have to be added every year in the future. The current particle accelerator is actually relatively primitive. , the performance of the accelerator must be continuously improved, and in the future it may be increased to the energy level that can crush elementary particles in order to study the internal structure of protons and neutrons..."

Looking at the big $ sign written by Tang Hua on the blackboard and the string of zeros behind it, the physics students who attended the class were stunned, and their eyes were also a little sad.

"So, at Yan'an University, you only use paper and pen to read books. It seems that you are also studying theoretical physics. In fact, you are only learning physics knowledge. If you want to go to the forefront, discover knowledge that has not been discovered before, and create new theories , There is still a long way to go..." Tang Hua saw that the students in the audience were starting to slump, but he still did not intend to let the students go, "And we should note that a country has made innovations in theoretical physics, which does not mean This means that the country will be able to monopolize or be the first to discover theoretically-based applied technologies, and it does not mean that the country will be the first to use technological achievements in production and construction. That is to say, country A made major discoveries in theoretical physics first, and finally The beneficiary is likely to be country B."

Tang Hua saw question marks appearing above the students below. "I talked about the second technological revolution before. So, who is the scientist who invented the law of induction and laid the foundation of electromagnetism?"

"Faraday!"

"Faraday. British. Maxwell, the founder of classical electrodynamics, British. The father of thermodynamics, Baron Kelvin, is also British. Electromagnetism, electricity, thermodynamics, etc., the basic physical theory on which the second industrial revolution relies , British physicists have made the greatest contribution. Then, students, which two countries took the opportunity of the second industrial revolution to quickly complete industrialization and technological revolution, and their national strength continued to catch up with other countries, and entered the 20th century When did the industrial output value rank first and second in the world?"

"..." "..."

The students started talking in a rambling manner. "America and Germany!"

"The British established a thermodynamic system, but the German Diesel invented the diesel engine; the British established an electromagnetic system, but the United States produced Edison and Tesla... The biggest feature of the basic physical theory is its research results It will soon be shared among all mankind, because the breakthroughs made by physicists in various countries must be announced all over the world, so that colleagues in other countries can taste, refer and improve, and then they can continue to promote the development of physics. From the 19th century From the later period to the present, this trend of international collaboration is becoming more and more obvious, because basic physics is becoming more and more complex, and a single person or a university cannot make a major breakthrough alone." Tang Hua smiled on his face and spread his hands. "Breakthroughs in fundamental physics will soon be shared by all mankind, so countries with the most advanced production relations, countries that straighten out the relationship between industry, education and research, countries with a strong talent base and engineering capabilities, and countries with the most advanced technology and new industries The country with the strongest desire will take the lead in turning basic scientific achievements into actual productivity. We must strive to make China such a country. As for the research of basic physics, indeed, this is also for the benefit of mankind and for the entire human civilization It is a glorious work for progress. At some point in the future, China will have highly developed national power and productive forces, and the people’s living standards will reach the level of developed countries. At that time, we can also undertake some glorious obligations for the progress of the entire human civilization, but we still not now."

"Now..." Tang Hua thought for a while, "Actually, it's okay. We have some outstanding overseas students with theoretical physics talents, and they are already engaged in research work in European and American countries. These best physics researchers... It is an advantage. Why? When our overseas students made great breakthroughs in the field of theoretical physics and finally won the Nobel Prize in Physics, they left their Chinese names in the history of physics, but they paid a lot of money behind them. The United States, which has invested tens of millions of dollars, will not be written on the Nobel Prize, will it?"

Chapter 24, Changchun can't be defeated

While Tang Hua was talking privately on the podium, Du Yuming and the young Zhuge Bai Chongxi were experiencing bursts of headaches as the national army camped in the northeast of Shenyang.

Empty space Chairman Chiang Kai-shek came to Shenyang for inspection, and the plane was about to land.Chiang Kai-shek notified Shenyang only after he got on the plane. After Xiao Zhuge received the telegram, he had only enough time to rush to the airport to meet him immediately.

In fact, it was not that Chiang Kai-shek wanted to make a surprise attack on Shenyang. He was so annoyed by Marshall that he ran to the northeast to hide from the nagging.

Marshall came to China to mediate, and he went back to the United States due to domestic affairs. When he returned to China on April 4, Chiang Kai-shek's troops were already fighting everywhere.

The United States believes that the current situation in China is very good. Chiang Kai-shek and the Eighth Route Army have a 4:1 advantage in terms of military strength and base area population. There is no need to fight a civil war. Ask Chiang Kai-shek to cease fighting.