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Quantum Mechanics (established in 1952 to solve the quantum theory required for integrated circuit technology).

Of course, the number of teachers and students majoring in laser physics accounts for two-thirds of the physics department.This is very reasonable. In terms of laser research, Tsinghua University ranks first in the world, Lomonosov Moscow State University ranks second in the world, and other countries and universities are scumbags.

In addition, in 1951, Tsinghua's Department of Radio was changed to the Department of Communication, and in the same year, some people were separated from the Department of Radio, Electrical Engineering, and Physics to establish the Department of Electronics.

Tang Hua did not come to Tsinghua today to see graduates from the Department of Electronics and Communications.This group of students came out for internships in January this year, and there are a lot of them in the Beijing Computer Institute and Communication Institute.

They didn't come here specifically to see graduates majoring in laser physics, Tang Hua was also very familiar with this group of students.

Tang Hua mainly wanted to take a look at the graduates of this year's engineering nuclear physics major.

……

"Of the 41 students in this cohort, 11 continue their postgraduate studies, and 30 of them go to work, basically for projects that have just started," Qian Sanqiang said to Tang Hua, "After their files are taken away from the school, They will disappear, and these young people have to remain anonymous and have worked in secret positions in secret units for an unknown number of years. ... This is not fair to them."

Of the 30 graduates, 5 entered the army, 15 went to the nuclear reactor in Fangshan, 4 went to the Xiangshan uranium mine and rough refinery, 4 went to the northwest to work for the nuclear engineering and nuclear plant preparatory team, and 2 went to Kazakh military industry.

Even those who went to work at the Fangshan nuclear reactor, even if it was only a few tens of kilometers away from downtown Beijing, had to keep their identities incognito. The family members did not know that they were actually working so close to Beijing.Even those who live in Beijing only go home once a year during Chinese New Year, pretending to have traveled all the way back to Beijing.

Tang Hua: "So I made a special trip to see them, and I may not be able to see them later."

Qian Sanqiang: "My identity is not hidden, because I am the director of the Institute of Modern Physics and a professor at Tsinghua University. Your identity is not hidden either. But the group of young people we lead will disappear collectively for many years. By the way, Deng Jiaxian Knowing this, he decided to erase all traces of his actions just like the students."

Tang Hua: ...

During the implementation of the two bombs and one satellite project, Qian Xuesen and Qian Sanqiang have been having public activities (although very few), but the outside world still knows the existence of this person.The other developers of the two bombs and one satellite "disappeared" in those 20 years.

The state can provide special security and confidentiality measures for the public activities of a few people, but there are nearly [-] experts in key fields with two bombs and one satellite. It is necessary for all key experts to have a life similar to that of ordinary people. It consumes too much manpower and material resources, and the scale of security is too large to ensure that no accidents will occur.

Deng Jiaxian studied at Purdue University in the United States and received a doctorate at the age of 26. He is well-known in the Chinese circle in North America. Yang Zhenning and him are good friends.After returning to China, he worked in the Institute of Modern Physics of the Chinese Academy of Sciences. It is said that he also has the attributes of a public figure and can retain certain public activities. However, Deng Jiaxian this time took the initiative to ask for the same treatment as the young graduates, and did research incognito.

Tang Hua could only sigh deeply, and said to Qian Sanqiang: "Those of us who still disclose our identities, our public activities are for the better advancement of nuclear weapons and rocket projects, and use our identities to win more external support and better serve the public. Allocate and concentrate resources, so that we can be worthy of this group of invisible heroes. Both projects must have a sense of urgency, and advance as soon as possible under the premise of ensuring perfect research and solid engineering. Every year we spend, it is this large group man's youth."

……

"In December 1945, I returned to Shanghai by boat from San Francisco." Tang Hua came to power after Zhao Zhongyao, and he had to say a few words at this meeting.

"At night, I often sit on the bench of the passenger ship, looking at the starry sky and the sea at night. I see the stars twinkling, the waves surging, and the boiling energy setting off a silent tidal sound, throwing into the wilderness of my consciousness. I understand that this It is the journey I am about to go through, and it is also the sea and the starry sky that I will conquer in the future. This idea has been lingering in my heart for so many years, and it has been my lifelong pursuit—our journey is the sea of ​​stars. Today I see What I want is not me alone, but an army that conquers the universe. In the long river of brilliant career, I feel very honored to have all of you galloping with me."

applause.

In the last meeting of the Department of Physics before graduation, Jiang Nanxiang, the principal of Tsinghua University, was present.

"Students, you will be defending from May to June, but your graduation thesis has already been handed in. I will come on the day when the degree is conferred, and I will also attend your department meeting today. The main reason is to let you see Tsinghua more, and I will see more you."

Jiang Nanxiang looked at the more than 100 graduates of physics department on the stage with mixed feelings.

"Students, you are the first group of students I brought out from freshman to senior year after I returned to China. I watched you grow up." Zhao Zhongyao said, "You are the best class of students I have taught.  … ...Every class of students is the best. After two months, you will go to every corner of the motherland. The so-called "a long sword in hand, the world allows me to gallop", this long sword is what you mastered in school Talent and knowledge are your fearless and courageous spirit of pioneering."

applause.

There was still applause.

"Students, let's sing "Graduation Song" together," Jiang Nanxiang said. "When the principal was still a student at Tsinghua University, he often sang this song with his classmates before graduation."

"Students, stand up and take up the responsibility of the rise and fall of the world!"

Jiang Nanxiang adjusted his black-rimmed glasses, stood in the middle of the classroom, waved his hands and beat the beat, as if he had returned to his school days.

"...We are the fragrance of peaches and plums today, and the pillars of society tomorrow; we are singing together today, and tomorrow we will set off a huge wave of national self-help! Huge waves, huge waves, keep growing!"

……

In the spring and summer of 1954, hundreds of physics and engineering graduates from colleges and universities were preparing for jobs in the nuclear and rocket industries.

In this year, 30 Soviet agricultural workers came to the east from the west of the Soviet Union to reclaim the vast frozen wilderness.Khrushchev personally led these 30 agricultural workers to reclaim new arable land in Siberia and Central Asia in the Soviet Union. Khrushchev even took a day or two out of work to plant corn in person.

In this year, another old man quietly returned from the United States.

The department meeting/pre-graduation meeting ended. Tang Hua and Qian Sanqiang walked out of the auditorium. After walking for more than a hundred meters, Tang Hua saw a thin old man with a cane on the side of the road, silently looking at the auditorium where the meeting was held just now.

Tang Hua was still carefully comparing the face of the old man to see which figure in history he was. Qian Sanqiang beside him spoke first:

"May...Principal Mei?"

Mei Yiqi was the president of Tsinghua University in the 40s. In 1949, Mei Yiqi went to Paris as the chief representative of the delegation to participate in the UNESCO Science Conference, and then lived in the United States.Originally, Mei Yiqi would go to Taiwan in 1955 to establish "Tsinghua University in Hsinchu, Taiwan", but in 1953, the Republic of China in Taiwan disappeared.After the Taiwan matter was settled, Gu Weijun had a long talk with Mei Yiqi in early 1954, after which Mei Yiqi decided to return to China.

"Mr. Mei Yiqi, hello." Tang Hua said.

Tang Hua's demeanor was relatively calm, while Qian Sanqiang and Principal Jiang Nanxiang who followed him were a little embarrassed.

Both Qian Sanqiang and Jiang Nanxiang were born in 1913. When they were studying at Tsinghua University, Mei Yiqi was the principal.

When they were studying in Tsinghua University, they all experienced the January 1935th Movement in [-].Qian Sanqiang played soy sauce in the parade, and Jiang Nanxiang was the student leader.Mei Yiqi... is the one who said, "Youth is the wealth of the country. I sympathize with patriotism, but patriotism also loves the school. If students continue to make trouble like this, the school may close down."

Thinking of this level, Tang Hua suddenly understood why the expressions of the two of them were wrong.

"I'm Tang Hua. This Mr. Qian Sanqiang is the director of the Institute of Modern Physics, Chinese Academy of Sciences..."

"I know all three of you." Mei Yiqi waved her hand to indicate that no introduction was needed.

Tang Hua: ...

Mei Yiqi: "The country is thriving, very good."

The "Republic of China fever" in later generations has blown more than one wave, and many so-called masters have become popular, but Mei Yiqi, a cultural figure who left Peiping in 48, went to the United States in 49, and went to Taiwan in 55, was ignored.The main reason is that Mei Yiqi is very boring, she doesn't scold anyone, there are no celebrity quotes and romantic affairs, even "Wuwen Xidong" is only used as a background board, and the only famous work is "University One Explanation".

Jiang Nanxiang: "Principal Mei, we are all very happy that you can return to China. I hope you will visit Tsinghua often in the future."

……

On May 1954, 5, Dien Bien Phu, Vietnam.

The Battle of Dien Bien Phu entered the third stage.In the past two months, Wei Guoqing, the head of the Chinese advisory group, fought unremittingly with the French and Vietnamese troops fighting in Vietnam, and finally brought the whole campaign back on track. From March 3th to April 30th, the Vietnamese army launched an attack on the enemy's central division of Mangqing, and finally compressed it into a narrow area of ​​less than 4 square kilometers. The Vietnamese army launched a general offensive on May 30, and the battle was resolved on the 2th. The French commander Brigadier General Castries and all his staff were captured.

The liberation of Dien Bien Phu meant that the French army no longer had any solid stronghold in North Vietnam, and it was a foregone conclusion that the French forces would completely withdraw from North Vietnam.

When the Battle of Dien Bien Phu started, the foreign ministers of the Soviet Union, the United States, Britain, France, and China reached an agreement at the Berlin Conference, suggesting that a meeting of the five countries be held in Geneva to discuss the restoration of peace in Indochina. The issue of the presence of foreign troops on the Korean peninsula.

Although the Geneva conference had been scheduled for a long time, the Prime Minister delayed the schedule a little bit. On the day when the French army at Dien Bien Phu was destroyed and Brigadier General Castries was captured, the Prime Minister’s special plane took off from East Germany at the best time. Arrive in Geneva.

Only one year after the founding of the People's Republic of China, China defeated the United Nations Army in North Korea and became an opponent that the West fears.In the eyes of ordinary people in the West, China is now shrouded in a veil of mystery, and even those who have followed China for a long time cannot see the whole picture.In the eyes of soldiers who participated in the Korean War, the Chinese are great fighters; in the eyes of generals, China is a terrible force that is best not to provoke; Also drive them crazy.

Hundreds of journalists were waiting early at Geneva's Quandtlan Airport.Under the watchful eyes of hundreds of journalists and military guards at the airport, the Prime Minister stepped off the special plane, striding forward with a calm demeanor.

……

Boeing Electronic Circuits Division.