After watching the Shenzhou 13 crew in China, that is, Zhai Zhigang, Wang Yaping and Ye Guangfu, three astronauts who cooperated closely and finally completed the first mission after six and a half hours, they will certainly have such feelings: The motherland is too strong, and it is not easy to do one thing in space.
In fact, the 6.5 hours of the capsule, although it does not have to withstand the gravity of the earth, it is precisely because there is no gravity that the difficulty and complexity of the mission of the outgoing activity are even more obvious. All in all, even if the mission is very high in outer space, after the explanation of the experts in the live broadcast room, and the easy-to-understand picture, let our most ordinary people understand the problem that astronauts have to solve on the space station.

And such a thing is actually enough to show the "self-confidence of the road, theory, system and culture", and even surpasses these specific ones but shows the "Chinese self-confidence"! Looking back at that year, in the course of the development and test explosion of China's first atomic bomb, Academician Deng Jiaxian, including academician Deng Jiaxian, who was in charge of the theoretical design of China's atomic bomb, hydrogen bomb, and even neutron bomb, realized that he would have to draw a clear line with family responsibilities and even family life when he just learned from Qian Sanqiang that he was going to undertake the task of "firing cannons."
That is, in 1958, when Academician Deng Jiaxian was 34 years old, on the one hand, he felt honored and honored to be able to undertake such a task; on the other hand, he also had to tell his wife Professor Xu Luxi, who was only in his 30s and also needed to undertake scientific research tasks, in a strictly confidential manner, to inform the other party that he had been transferred to a job that could not say what to do and did not know where. The most direct consequence of this job of not telling his parents and his wife and children is that Xu Luxi must take care of the two elderly families and two young children at a young age! Moreover, Xu Luxi himself also has to take into account the scientific research and teaching work in Peking University School of Medicine.
Compared with Wang Yaping, who represents nearly 700 million female compatriots in the country and walks in space, perhaps what Xu Luxi has endured in his life is not the most difficult. However, what Professor Xu Luxi has endured is a young woman who should not bear the burden of life!
But then again, it is not that an ancestor has overcome the big difficulties and small obstacles in life, so that future generations can stand on the shoulders of giants, go up to the moon for nine days, catch turtles in the next five oceans; only then can people now watch the pictures that were absolutely confidential in the past through mobile phones, and even make a little progress in science and technology, and can feel the difficulties and challenges faced by the pioneers of the aerospace industry through the current focus on scientific research and technological means such as AI and artificial intelligence.
Speaking of confidentiality, the reason why we can now boldly and confidently show our achievements and future plans to ordinary people and the world, for example, in the process of live broadcasting, there are relevant technical experts who explain that there will be an experimental module to leave the space station, and then a small mechanical arm will be transported to install, and there will be a wider and more comfortable transit module to join the space station next year.
The reason why we can be so calm and confident, I believe that we are also able to evaluate the situation in all aspects and ensure that it will indeed be foolproof, so that we can carry out a full range of "muscle display" on what we are doing. And I think that in the beginning, even if we already had the atomic bomb, from being slaughtered by others and even being a chip of the powerful country at the negotiating table to standing up on our own, it was strictly confidential. It is also the careful and low-key behavior of countless times before that we finally "accumulated such a great power" that we can completely ignore the fly camp dogs in the outside world.
Regarding the matter of secrecy, in fact, friends who have watched the movie "Born in the Sky" with the theme of China's first atomic bomb explosion know that Dr. Lu, one of the male protagonists at that time, met the old classmate of the Nobel Prize winner at the airport, and then suffered a certain impact.
In fact, although in fact, Academician Deng Jiaxian, the prototype of Dr. Lu, did not encounter the situation in the film, Academician Deng Jiaxian resolutely fulfilled the promise he made when he first accepted the "amplification of the cannon battle", and really did not tell his parents, his wife and children, and even in front of Yang Zhenning, a close friend who has a common topic in the academic field, he also resolutely implemented the principle of confidentiality.
In 1971, when Mr. Yang Zhenning returned to China, he met with Academician Deng Jiaxian, which was also one of the few times before Academician Deng Jiaxian's unfortunate death due to nuclear radiation in 1986, two high school alumni, close friends in life, and aspiring young people who went to the United States to study after being both graduates of Southwest United University.
After the meeting at that time, Yang Zhenning also learned about Deng Jiaxian's secrecy work, but for the rumors from the outside world that "Chinese was able to develop an atomic bomb because of the help of the Americans Hanchun", Yang Zhenning still couldn't help but ask.
For this problem, it really made Academician Deng Jiaxian embarrassed. From the relationship between the two, it can really be described as a good brother and a true friend, the father of the two is a well-known scholar, the original relationship between the two old people is very good and belongs to the world; the two are alumni of Beijing Chongde Middle School, Yang Zhenning born in 1922 is two years higher than Deng Jiaxian, born in 1924, but Yang Zhenning can be regarded as one of Deng Jiaxian's initiators in physics.
After that, Deng Jiaxian left his parents and siblings and went to the Southwest United University in Kunming, the rear of the War of Resistance, to study, when Yang Zhenning had become a student of Professor Wu Dayu for several years and opened the way to study in the United States.
In 1948, Deng Jiaxian still chose the road of staying in the ocean, and went to the other side of the ocean, that is, he set off with Yang Zhenping, a brother of Yang Zhenning, who also wanted to study abroad. At Purdue University in the United States, Academician Deng Jiaxian only spent 1 year and 10 months to obtain a doctorate, which basically lived with Yang Zhenning.
Although Mr. Yang Zhenning's choice to become a member of the United States in 1964 made his father, the famous mathematician Mr. Yang Wuzhi, never forgive him all his life, as early as 1957, Yang Zhenning, who won the Nobel Prize in Physics with Li Zhengdao, who was also a protégé of Wu Dayu, a protégé of Southwest United, may not have completely understood what Academician Deng Jiaxian's choice meant at that time, and had not yet distinguished the relationship between scientists and scientists' families.
Academician Yang Zhenning began to return to the motherland in the 1970s, and has made more than ten trips to introduce the achievements of the motherland to the world, and also helped Tsinghua, Peking University and Nankai and other well-known universities in China to establish a physics research system.
What is even more valuable is that Academician Yang Zhenning chose to return to China's nationality in his later years, and together with top scientists who returned to China such as Academician Yao Zhizhi, winner of the Turing Award, he contributed irreplaceable strength to China's scientific research and education!
Let's go back to Yang Zhenning's rumors about whether Chinese scientists developed the atomic bomb themselves and whether There were Han Chun and other Americans involved in it. In fact, Deng Jiaxian mentioned to Yang Zhenning that his work was out of town, and he didn't say much about it. For Yang Zhenning's question, Deng Jia would inform him after asking for verification.
Why do we actually need to verify? Deng Jiaxian himself is the chief theoretical designer of the atomic bomb, the hydrogen bomb and even the neutron bomb, and the early theoretical research is that Deng Jiaxian leads the new graduates of physics, foreign languages and even mechanical majors to do these work together, and only later did several heavyweight scientists join to speed up, so that China's unique implosion atomic bomb plan was formed and soon launched. However, any development and testing of nuclear weapons such as atomic and hydrogen bombs was basically carried out with the participation of Deng Jiaxian under the command of Deng Jiaxian.
This inquiry is naturally to determine whether you can tell your close friend and brother Yang Zhenning this news. After the meeting in Beijing, Yang Zhenning was about to return to the United States via Shanghai, and Deng Jiaxian, after receiving the approval of Premier Zhou, wrote a letter to Yang Zhenning, who was about to leave his homeland, and the atomic bomb was not attended by any foreigners except for the rare assistance received by the Soviet Union before 1959.
At that time, it was such a few short words, but it made Yang Zhenning burst into tears between the farewell banquets in Shanghai, why? Mr. Yang Zhenning and academician later recalled that this was for the sake of the nation and was proud! He is proud of his little brother and good friend Deng Jiaxian!
And this is also the reason why Mr. Yang Zhenning and academicians will choose to return to the motherland in their later years, which is the mark of the blood of the Chinese nation and the strength of the world's greatest civilization!
The motherland is developing and progressing, and the motherland is facing the world with an incomparably powerful appearance! I hope that all of us can do our job well and overcome the difficulties in front of us to solve the problems within our capabilities. Big changes, each of us is in it. In the following years, as long as we assume our social role, the greatness of the Chinese nation will surpass anyone's settings and imaginations!