The passionate years starting from the college entrance examination

Chapter 310, Gemini Rocket Communication
In 1965, Di’anmen Street in Beijing, in front of the Yamen office.

The car stopped at the door. After Chen Guohua and Qiu Zongyue got off the car, they walked inside.

In addition to the two of them, Qian Xuesen and others were also following behind. When Chen Guohua walked in, he also saw Qian Sanqiang, Qian Weichang, and Deng Jiaxian.

Is this a big gathering of physicists today?

There were a lot of big guys coming, and it was definitely a very, very rare scene for all three people to gather together.

In addition to them, there is Yang Zhenning, a big boss who has just returned from abroad.

"Professor Yang, let me introduce to you. This is Comrade Chen Guohua, the director of our Zhenhua Research Institute and a professor of mathematics at Peking University."

Qiu Zongyue pulled Chen Guohua and introduced Chen Guohua to Yang Zhenning.

When he saw Yang Zhenning, Chen Guohua still admired him. It took a lot of courage to come back to the mainland at this time.

Of course, whether he comes back or not, it will not have much impact on the mainland.

Don't look at Yang Zhenning's status as a physicist, ranking fourth behind Newton, Einstein and Maxwell.

From the original history of time and space, in the group photo after the International Physics Conference in May 1999, Yang Zhenning was directly ranked in the middle C position. It can be seen how awesome his status in the entire physics world is.

Its achievements in physics mainly include three major areas, the 'parity non-conservation law in weak interactions', the 'Yang-Baxter' equation, and the 'Yang-Mills' equation.

However, these are purely theoretical studies and are of little use to today's mainland.

It may be able to enhance the mainland's status in the international physics community, but these are all false claims.

Unlike people like Qian Xuesen and Deng Jiaxian, who can help the mainland complete scientific research tasks on atomic bombs, hydrogen bombs, artificial satellites, nuclear submarines, etc.

It was precisely because Yang Zhenning was engaged in purely theoretical research that Lyndon Johnson and the others were so relieved to let him return to the mainland.

This is true for pure theoretical research. Even if you help to educate graduate students, it will only be one or two, not many.

When Chen Ning Yang conducted research in North America, he always collaborated with himself or one or two people, and not many people participated.

"Hello, Professor Yang, I have long admired your name."

Chen Guohua took the initiative to extend his hand and said with a polite smile.

The other party also shook hands with Chen Guohua very enthusiastically and praised him endlessly.

Although Yang Zhenning is from the field of mixed physics, he is on the second level of the contempt chain, while Chen Guohua is at the top of the contempt chain, and he himself is a top mathematician.

Although Chen Ning Yang has won the Nobel Prize, the Yang-Mills equation is also a very powerful differential equation. It is also one of the seven major problems of Millennium Mathematics in the history of space and time.

But even if you are awesome, physics is always not as good as mathematics.

Just because mathematics is the foundation of all subjects, this is enough to defeat physics.

"You are all top scholars in various fields. The rest of the office will be handed over to you. We will retreat first." Qiu Zongyue joked with a smile, and then took the initiative to leave.

As soon as the leader left, everyone started chatting.

However, as soon as Chen Guohua opened his mouth, he chatted with Yang Zhenning about the Yang-Mills theory proposed by Yang Zhenning eleven years ago, which is also the quantum field theory.

Chen Guohua is very interested in solving this mathematical problem, and Yang Zhenning is a very good physics theorist, and he is also accompanied by Deng Jiaxian, Guo Yonghuai, Qian Sanqiang and other big names in the physics world.

Although their respective research directions are different, there is a saying that they can draw parallels. Moreover, Chen Guohua really wants to improve the mainland's top scientific and technological level.

Therefore, Chen Guohua did not want to miss this opportunity.

As a result, this conference room quickly became a venue for academic discussions.

The paper and pen were in the hands of Chen Guohua and the others, and they were quickly written like encrypted messages. They were full of ghost symbols, which ordinary people could not understand at all.

Yang Zhenning, Guo Yonghuai, Deng Jiaxian and others were quickly shocked and dumbfounded by Chen Guohua's powerful mathematical ability.

"Professor Chen, your calculation ability is the best among all the mathematicians I have ever seen. Don't you need to think about it?"

Yang Zhenning, whose face was full of emotion, was even more excited and shocked.

Because Chen Guohua is so powerful, all kinds of theories and data almost don't need to be thought about, and the way he can pick them up at his fingertips is so shocking.

"Professor Yang, it's okay. Let's go back to the issue of inelastic scattering just now."

Chen Guohua shook his head, said modestly, and then put the question back.

The Yang-Mills equations that appear in Yang-Mills theory are a set of extremely meaningful nonlinear partial differential equations that have never been considered in mathematics. Chen Guohua has also studied nonlinear partial differential equations, but He had no more time to delve into it.

Of course, this is just his own modest statement. In fact, he had already verified the Navier-Stokes equation in 1962.

In the history of original space and time, the Navier-Stokes equation was one of the seven major mathematical problems of the millennium.

It can be seen that Chen Guohua has already reached the pinnacle in the field of nonlinear partial differential equations.

Not only that, in 1959, Homandel also stayed at Peking University with Erdesh.

Later, Homandel also consulted with Chen Guohua about difficult problems in linear partial differential equations, and thus published a basic book "Linear Partial Differential Operators", which has become a textbook in the Department of Mathematics of Peking University.

Therefore, from these aspects, it can be seen that Chen Guohua is indeed very powerful in these fields.

However, Chen Guohua did not publish the paper proving the Navier-Stokes equation, but threw it directly into his space ring.

After all, the Navier-Stokes equation has a very special meaning in fluid mechanics. It is the existence problem of the solution to the NS equations in three-dimensional space. It describes the equation of motion of the conservation of momentum of a viscous incompressible fluid.

Yang Zhenning couldn't help it. This is the unique humility of the Chinese people, and he had been abroad for many years, so he was not very used to it for a while.

But it doesn't matter, it will get better as time goes by.

After communicating with Yang Zhenning until the evening, Chen Guohua still had some unfinished ideas.

It was already dark outside, and Chen Guohua could only suspend communication.

After watching Yang Zhenning leave, Chen Guohua found Qiu Zongyue and said to him:

"Leader, I want to take Professor Yang Zhenning to visit our Zhenhua Research Institute tomorrow. I hope he can return to our capital to do research. The foundation of physics in our capital is really too bad."

To be more serious, Chen Guohua thinks that Yang Zhenning should be invited back after the 1980s.

But after he communicated with the other party today, he actually thought that there was nothing wrong with letting him come back now.

The reason is quite simple. The physical foundation in the mainland is too backward.

This is not what Yang Zhenning said to Chen Guohua, but the truth that the latter realized on his own.

In fact, whether it is the basics of physics or mathematics, the mainland is too poor.

There are very few things that Chen Guohua can do, but there is absolutely no problem in asking a great god to come back and take charge.

As for whether the Siberian cold wind will have any impact on Yang Zhenning, Chen Guohua feels that this is indeed a bit too much.

Yang Zhenning can only take two or three students at a time. If they are exhausted, they will be four or five. There can be no more students.

For example, Chen Guohua himself had admitted two students, Bai Ronggen and Chen Shuxing, in December 1960. As a result, they have not yet graduated with Ph.D.s.

It’s been five years!

Of course, Chen Guohua himself is too busy, that's why he is like this.

"No problem, you can just take him to visit. If you are not free, it will be no problem for me to take him myself."

Qiu Zongyue said directly with a smile:
"I probably understand what you mean. In fact, the leader also asked him, but he declined..."

"Maybe it's because we are really too backward here..."

Hearing this, Chen Guohua shook his head and said:
"Leader, in actuality, our place is not lagging behind at all. Our Zhenhua Research Institute can provide him with the high-end technology that Professor Yang needs. There is no problem at all..."

"My idea is also very simple. It is to show some of the scientific and technological strength of our Zhenhua Research Institute and attract Professor Yang Zhenning. If possible, I also hope that he can help invite Professor Li Zhengdao and other Chinese scientists to come back..."

One of the most outstanding physicists of the 20th century, Lee Tsung-dao must have a good reputation.

This person mainly conducts research in the fields of quantum field theory, elementary particle theory, nuclear physics, statistical mechanics, fluid mechanics and astrophysics.

In these fields, Chen Guohua is in great need of top talents.

It's just that as a Nobel Prize winner, he has become an academician of the National Academy of Sciences of North America last year. At this time, it is very, very difficult to invite people back to the mainland.

But some things depend on people.

What's more, the other party's roots are in the mainland, and it is only human nature to return to the mainland.

In addition to Li Zhengdao, Chen Guohua actually hopes that scholars such as Chen Shengshen and Zhou Weiliang can come back, as well as Wu Jianxiong and others.

There are too many big names coming out of the mainland.

As for North America, they have absorbed so many scientific researchers, so they can stand proudly on this planet.

In comparison, Moscow, which has developed independently, can not only compete with North America, but also surpass North America in many fields such as aviation. It is really even more awesome.

Upon hearing this, Qiu Zongyue naturally agreed with Chen Guohua's proposal, so the matter was settled.

That night, Chen Guohua returned to Cuihua Hutong. Before going to bed, he carefully searched the biological hard drive for information about Chinese scientists such as Li Zhengdao and Chen Shengshen.

As a result, he soon became speechless.

It turns out that Yang Zhenning and Li Zhengdao had already broken up, and the latter had joined North America in 1962 and was no longer Chinese.

"Let me go, I actually want Professor Yang Zhenning to help persuade Li Zhengdao to return to China?"

Chen Guohua was immediately speechless by his reckless words before.

What should we do now?
In the blink of an eye, the next day, Chen Guohua found Yang Zhenning again and continued to exchange Yang Mills theory with the latter.

But at noon, Qiu Zongyue ran over happily, found Chen Guohua, and told the latter a huge piece of good news.

That means Li Zhengdao has also come to the capital!
Oh, this is indeed good news.

In this way, Yang Zhenning's help is no longer needed, and Chen Guohua can personally persuade Li Zhengdao, hoping that the other party can return to the mainland.

As for the Bay Island side?
In fact, not only Yang Zhenning, but also Chen Shengshen and others, most of them were perfunctory about what was said on the island.

Wu Jianxiong, Li Zhengdao, Yang Zhenning and others, Qian Xuesen, Qian Sanqiang, Qian Weichang, etc., their hometowns are all in the Yangtze River Delta area in the south of the Yangtze River, not the Bay Island.

"Okay leader, then I will meet with Professor Li Zhengdao in two days."

Hearing what Chen Guohua said, Qiu Zongyue nodded and asked, "Then when will you finish discussing with Professor Yang Zhenning? Then I will show him around the Zhenhua Research Institute."

"It will take another two days. Let's do this, leader. Then I can just ask Old Xue to show Professor Yang around. If I have time, I can show him around in person."

In order to persuade Yang Zhenning to stay, Chen Guohua also worked hard.

As the twin stars in the physics world, whether it is Zhengdao Li or Chen Ning Yang, both of them have very strong achievements and talents in mathematics and physics.

Two days passed in the blink of an eye, and Chen Guohua finally ended his communication with Yang Zhenning.

This exchange was of great benefit to both parties, especially Chen Ning Yang, who was completely convinced.

Just because Chen Guohua's mathematical ability is so strong.

Also, the computers here in the Mainland actually have mathematical modeling.

For any physics problem, Chen Guohua mostly relied on mathematical modeling to solve the problem, which really shocked Yang Zhenning to the point of being stunned.

There is no such thing as mathematical modeling in North America.

It's not that their computer skills are too bad, but that their mathematical modeling skills are poor and they started too late.

In the original history of time and space, it was only in the 1960s that mathematical modeling methods and technologies began to appear in foreign countries, and were widely used in various fields such as economics, biology, medicine, and engineering.

However, these are only superficial applications and cannot be applied to high-end scientific research projects at all.

Or there is already such an application, but it is difficult to be taken seriously because it cannot solve the problem and the technology is not enough.

The current Undergraduate Mathematical Modeling Competition was held in 1985 by the North American Federation for its Applications.

And this time and space does not exist in North America at all.

On the contrary, the mainland not only held the first National College Student Mathematical Modeling Competition in 1961, but also successively cultivated many mathematical talents in the following years.

In addition, in the field of high-end scientific research, it has already become popular.

That's why Yang Zhenning was so shocked after learning about these methods.

After all, in my impression, the level of computers in the mainland is really average.

But I didn't expect that North America is actually not as good as the mainland. It can even be said to be too far behind.

"Director Chen, can I visit your Zhenhua Research Institute?"

In the office, before Chen Guohua opened his mouth, Yang Zhenning made a request.

"Of course there's no problem, let's go, I'll take you there," Chen Guohua said with a smile.

In the end, Yang Zhenning gave up and said, "I don't dare to trouble you. You can just arrange for someone to take me around. Especially some confidential places, I don't dare to go."

He said somewhat self-deprecatingly, but Chen Guohua laughed:

"Professor Yang, of course we believe in you very much, and we hope you won't say these words that are not conducive to unity, haha"

After the joke, Chen Guohua called Xue Yajun and asked the latter to help take Yang Zhenning to visit.

Xue Yajun is the deputy director. This level is definitely enough, and it can also show that Zhenhua Research Institute attaches great importance to Yang Zhenning.

In fact, it would be best for Chen Guohua to take the other party to visit in person, but since the other party has said so, of course Chen Guohua cannot continue to insist.

So, under the leadership of Xue Yajun, Yang Zhenning began to visit Zhenhua Research Institute.

To be honest, Yang Zhenning was just like Grandma Liu when she entered the Grand View Garden. It was the first time she saw such an advanced scientific research institution.

Ubiquitous surveillance equipment, drones acting as transport aircraft, robotic laboratories, etc. are all full of science fiction.

"Director Xue, can I ask, what is an algorithm?"

When passing by the software laboratory, Yang Zhenning saw rows of computers and scientific researchers who were busy typing on the keyboard in front of the computers. He couldn't help but asked curiously.

"Professor Yang, I know the definition of an algorithm. It should be an accurate and complete description of a problem-solving solution. It is a series of clear instructions for solving a problem. An algorithm represents a systematic method to describe the strategic mechanism for solving a problem. However, it is more specific. Some, I don’t know.”

Hearing Xue Yajun's answer, Yang Zhenning nodded suddenly.

This is more or less similar to mathematical modeling, but not completely similar.

It can only be said that the level of scientific research and technology of Zhenhua Research Institute is so advanced that it is simply unheard of.

As a Nobel laureate in physics, Yang Zhenning also has a very high status in North America. Of course, he has visited many advanced scientific research institutions in North America.

However, compared with Zhenhua Research Institute, it is an era behind.

Yes, it is an era behind!
The scientific researchers in the software laboratory in front of me are all typing on the keyboard in front of the computer. Looking at their skillful operations, you don't need to look at the keyboard to know how powerful they are.

In North America, the electronic products exported by China Resources have swept across North America. Naturally, Yang Zhenning has also heard about this.

He even bought an advanced Huaxing digital SLR.

"Professor Yang, up ahead is our aerospace engine laboratory."

When Yang Zhenning heard this, he immediately shook his head and said:
"Then I won't go. Aviation engines are too high-end."

In fact, it's not high-end, but it's too sensitive.

Xue Yajun heard this and did not insist.

As long as the purpose is achieved.

On the other side, Chen Guohua has already met Li Zhengdao.

When the latter first met, he praised Chen Guohua. "Director Chen, you know, when I was young, I was also the youngest professor at Columbia University. I was only twenty-nine years old that year. But now that I see you, I know that there are people outside the world and there is a world outside the world."

The reason why Tsung-Dao Lee left Princeton University and joined Columbia University was because he had decided not to cooperate with Chen Ning Yang.

As early as when Li Zhengdao and Yang Zhenning jointly published "Statistical Theory of State Equations and Phase Transitions", they had an unpleasant incident because of the issue of signature.

According to international practice, when papers are published, the order of author signatures is determined alphabetically.

In this case, Li Zhengdao's name will be ranked before Yang Zhenning.

However, Yang Zhenning approached Li Zhengdao and asked him how many years older he was than Li Zhengdao. He hoped that the author could put his name first when signing.

Although Li Zhengdao was unwilling to accept this proposal, he finally reluctantly agreed.

Later, when they collaborated to publish a paper for the second time, Li Zhengdao persuaded Yang Zhenning to sign his name in accordance with international practice.

But after that, the two stopped working together.

But later, Li Zhengdao read a paper published by Yang Zhenning. He was skeptical about the starting point of the latter's paper, so when Yang Zhenning came to see him, the two started a discussion on this.

After the discussion, the two co-authored a paper and resumed their cooperative relationship.

After that, the two began to collaborate and published the classic paper "Questioning Parity Conservation in Weak Interactions", for which they won the Nobel Prize in Physics the following year.

However, the differences gradually expanded. From the order of Stockmore's appearance in the award to the subsequent discussion of whose contribution was greater and who was less, the two insisted on their own opinions, and eventually the two broke up.

"Professor Li is so humble. You are a big shot who won the Nobel Prize in Physics. When you won the prize, I was still preparing for the college entrance examination."

Chen Guohua responded with a warm smile.

Li Zhengdao and Yang Zhenning won the award in 1957. At that time, Chen Guohua was indeed still studying in No. 65 Middle School.

"Don't be humble, you are all the pride of our Chinese nation."

The leader on the side said something with a smile, and everyone burst into laughter.

Similar to Yang Zhenning, Chen Guohua also communicated with Li Zhengdao for two or three days, and then arranged for someone to take him to visit the Zhenhua Research Institute.

Before the two of them left the capital, Chen Guohua found the two of them respectively, hoping that they could return to the mainland and contribute to the country's scientific and technological undertakings.

But the two of them were obviously very hesitant. Although Chen Guohua expressed his understanding, he still sincerely invited the two to come back.

Although both of them have joined North America, they are no longer Chinese.

But is this important?
As long as they are willing to come back, Chen Guohua believes that the superiors will definitely not stop them.

World-famous great scientists like Tsung-Dao Lee and Chen-Ning Yang are very popular figures wherever they go.

"Professor Yang (Professor Li), you might as well consider it. I will hold a mathematics lecture at Peking University in October. I hope you can come and participate."

When talking to the two of them separately, Chen Guohua's words were almost the same.

"In the future, I will invest more time in the field of mathematics and solve more high-tech problems. In other words, in the future, I will most likely hold more mathematics seminars."

"I hope that top talents like you, Professor Yang (Professor Li), can come back and help our nation develop our physics foundation."

"For more than a hundred years, our country has been bullied by foreign powers."

"Now we have stood up, but our spine has not been completely straightened. I hope Professor Yang (Professor Li) can come back to help us."

Chen Guohua's attitude was very sincere, but Li Zhengdao and Yang Zhenning did not agree on the spot.

Both of their families are in North America. If they want to come back, they definitely need to discuss it with their families.

It doesn’t mean that I will just come back.

However, Chen Guohua knew very well that both of them cared deeply about their motherland. Even if they didn't come back now, according to the history of the original time and space, they would come back.

Li Zhengdao and Yang Zhenning returned to North America, and Chen Guohua also turned around and devoted himself to his work.

August passed quickly. After entering September, Chen Guohua went to the Jiuquan Satellite Launch Center.

Just because the mainland's first artificial satellite rocket is finally ready for liftoff.

"Director Chen, you are here, we have made all preparations, now"

As soon as they arrived at the launch center, the person in charge, Fu Liqing, came with people to greet Chen Guohua.

"Director Fu, I understand. Please take me to the Communications Department first. I need to confirm the situation with the comrades in the Communications Department."

Chen Guohua did not accept the other party's proposal to go to the reception banquet first, but directly proposed to go to the Ministry of Communications.

Rocket launch is very important. As one of the persons in charge, Chen Guohua must ensure that all technologies are passed and that technicians in each department know what they are doing.

In fact, even if he didn't come to check, people like Guo Yonghuai wouldn't be doing it for free.

Chen Guohua has said before that he must ensure that every assessment is 100 points, even if he occasionally scores 99 points once or twice, that will not work.

Therefore, everyone is fully prepared for this satellite launch.

Even Qiu Zongyue has been here several times.

You know, Qiu Zongyue had never been to the atomic bomb laboratory in the northwest before, but now, because of the artificial satellite, he came to Jiuquan Center.

"Okay, Director Chen, please come with me."

Fu Liqing was very surprised when he heard this, but he still didn't dare to say anything to persuade Chen Guohua.

The latter's position is higher than his, and his status cannot be compared with that of a small director.

Although Chen Guohua is also the director, there is a big gap between the director and the director.

For example, there is absolutely no comparison between Director Wang Chunmei of the Wangfujing Subdistrict Office in Beijing and Director Chen Guohua.

After arriving at the Ministry of Communications, Chen Guohua briefly greeted them and then asked to start testing.

It has been less than a week since the rocket launch, so all the preparations have actually been completed.

Chen Guohua came over, just to check it again and again.

After confirming that there were no problems with the Ministry of Communications, Chen Guohua inspected other departments one after another in the next few days.

During rocket launch, the selection and adjustment of launch angle is very important.

Regarding this point, before setting off from the capital, Chen Guohua discussed this with Qian Xuesen and came up with several plans.

With the assistance of supercomputer, coupled with multiple precise calculations by Chen Guohua, Qian Xuesen and others, as well as mathematical models, it can be said that it is very comprehensive.

The second step is to ensure that the weather conditions at the Jiuquan Satellite Launch Center are good on the day of the rocket launch.

Simply because weather conditions have an important impact on the safety and success rate of rocket launches.

If the weather conditions are not good, such as strong wind, rain, snow and other severe weather, it will pose a great threat to the rocket launch.

Therefore, the weather must be strictly checked before launching to ensure good weather conditions, safety and beauty.

The last point is to check various components, systems, and launch equipment of the rocket multiple times to ensure that they are in good condition and can operate normally.

Finally, the day came in mid-September, and it was also a day with clear skies in the weather forecast.

On this day, not only Chen Guohua and other scientific researchers were very nervous, but also the leaders who were far away in the capital and watched the live broadcast through video calls were also a little nervous.

"Leader, all preparations for the rocket launch have been completed and everything is ready. Now apply for launch and request approval."

Through dual channels of video call and phone call, Sun Jiadong, as the project leader, applied with leaders in Beijing.

In fact, Chen Guohua is the real project leader, but he is the person in charge of the air defense system, not the person in charge of the artificial satellite project.

When it comes to scientific research, Chen Guohua considers himself number one, but no one dares to think he is number two.

This is the current consensus of most mainland scientific researchers, but for other matters, he mainly adheres to the principle of hiding when possible.

What's more, he doesn't need such feats to improve his status.

"approve!"

After receiving the approval, preparations for ignition began at the Jiuquan Satellite Launch Center.

After the countdown, the ignition is started, the rocket is ignited, a large amount of gas escapes from the bottom of the rocket, and the rocket begins to lift off and escape from the inside.

Everyone's eyes were fixed on the rocket with serious expressions.

Although this is not the first time the Jiuquan Launch Center has launched a rocket, it is the first time it has been so nervous.

Just because the rocket launched this time needs to send the satellite to low Earth orbit.

That is the starry sky of the universe.

From the ancient times when Chang'e flew to the moon, to now we are gradually realizing the mystery of exploring the universe and the starry sky. To say that we are not excited is definitely a lie.

Chen Guohua stared at the screen because there was a video of the rocket taking off.

However, according to the current signal, this video can only be maintained at a distance of about 10,000 meters. After that, the signal will be interrupted.

It doesn't matter, it doesn't matter, there is a radar system, as long as it can ensure the normal advancement of the rocket.

Watching the rocket rise to an altitude of 10,000 meters, it was difficult to see clearly with the naked eye. There was sudden applause and thunder at the launch command center.

Although it was not completely confirmed that the rocket had been successfully launched, everyone could no longer suppress their inner joy.

Seeing how happy everyone was, Chen Guohua just smiled and estimated that it would take a few more minutes to confirm that the rocket had entered orbit.

Only when it enters low-Earth orbit can it be considered a successful launch.

The process from launch to orbit takes about ten minutes, which does not take long.

So for now, wait a few minutes and you'll probably know for sure.

As time goes by, the results that Chen Guohua wanted to see have come out.

After the rocket is ignited, it will rise vertically for only about ten seconds, and then it will enter a programmed turning phase.

The gimbal or vector motor equipped on the rocket engine will provide a deflection force to the rocket to help the rocket achieve a programmed turn. The programmed turn is to save fuel while accurately sending the satellite into the predetermined orbit.

In this regard, the software laboratory of Zhenhua Research Institute can be said to have achieved great results through hard work.

About 170 seconds after the launch of the rocket, the explosive bolts will explode the connecting mechanism between the booster and the rocket to complete the separation of the booster. At this time, the height of the rocket is about 70 kilometers from the ground, and the flight speed is 1.2 kilometers per second.

Subsequently, the first- and second-stage connecting mechanisms of the rocket were also exploded by explosive bolts. The first-stage rocket turned off the ignition of the second-stage rocket and used the speed difference between the two to complete the separation.

About thirty seconds after the separation of the first and second stages of the rocket, the flight altitude of the rocket has reached 100 kilometers, and the impact of the earth's atmosphere on the rocket's flight has been very small.

At this time, the explosive bolts in the connecting part of the fairing will "peel" the fairing apart like peanuts, and the satellite will continue to accelerate driven by the second-stage rocket.

The satellite-rocket separation is not completed until the second-stage rocket softens the satellite to the predetermined orbit.

After the satellite and arrow are separated, the satellite needs internal batteries to provide power for normal operation. Except for a very small number of satellites that use nuclear batteries, most satellites use solar panels to obtain power.

When the satellite first enters orbit, the solar panels are in a folded state. If the solar panels cannot be opened smoothly, all the previous efforts will be in vain.

In addition, details include whether there is enough rocket fuel, whether the rocket engine is working properly, and whether the components of each subsystem are working properly. These are all factors that affect the flight status of the rocket. If the rocket flight speed and altitude cannot be reached, The satellite is also unable to enter its intended orbit.

Fortunately, none of this happened.

The rocket successfully delivered the satellite to a low-Earth orbit three hundred kilometers above the ground.

Although the lifespan of this satellite is only about one year, it is enough.

For the mainland, this is the greatest success.

"Okay, the rocket has been successfully launched. Now start the space-to-ground communication system and make sure to establish contact with the satellite."

After hearing Chen Guohua's order, the Communications Department immediately became busy.

The space-to-ground communication system refers to the communication between the space vehicle and the ground command and control center. Its main function is to complete the transmission of the space vehicle's telemetry and remote control information, video image information, and space and ground voice information.

But due to the distance, there will definitely be delays in communication, let alone the first test?
"Director, we have received the information. This is the photo just returned from the launch of the Dongfanghong-1 satellite."

Suddenly, several correspondents from the Communications Department stood up excitedly.

A photo was displayed on the monitor. This photo was sent back from the Dongfanghong satellite three hundred kilometers away.
Chen Guohua had also seen it and was equally excited.

Finally it was a success!

The entire command room fell into ecstasy again, and applause sounded again.

This time, Chen Guohua also applauded and encouraged everyone to keep up their efforts and keep an eye on the satellite in the sky.

In the next few days, Chen Guohua returned to the capital after confirming that the satellite was operating well in space.

"Leader, I apply to launch the second satellite rocket in January next year. This time we will launch the satellite into an orbit of two thousand kilometers."

The lifespan of satellites in medium orbits is only about one or two years, and it is best to use geosynchronous orbit satellites.

But today’s technology can’t do it yet, so we can only do it step by step.

"no problem!"

The leader approved Chen Guohua’s application.

From low-Earth orbit to medium orbit, and then to highly synchronous orbit, I believe that the mainland's rocket launch technology will definitely be able to do it.

The Rockets came to an end, and Chen Guohua turned around and was entangled in the bomber project again, and it was already the end of September.

The National Day in October is coming soon.

As the National Day approaches, Chen Guohua is still staying at the base in the Yanshan Mountains, staring at the bomber's first flight test.

There are so many types of tests that almost every test requires a few days of rest to ensure that all parts inside the bomber are normal.

On this day, Xu Dexiang came to report that the bomber that had caught a cold at the beginning of the year had been repaired and was now applying for test flight preparations.

After Chen Guohua learned about this, he went to check it out personally.

It took half a year to complete the repair, and a lot of manpower and material resources were wasted, which suddenly doubled the cost of the bomber.

But no matter what, it is the first double supersonic bomber in China after all, and it definitely needs to be repaired.

It took a week. After Chen Guohua completed the inspection, he approved the application for test flight preparation.

At this point, there are two bomber prototypes here at the Yanshan Mountain Base.

Unlike previous fighters, bombers did not prepare many prototypes.

Since the satellite was successfully launched some time ago, the bomber also began to use the satellite communication system during its first flight test.

Although there is only one satellite in the sky, using satellites for communication is not realistic, but this is a test.

Low-Earth orbit satellites circle the earth in 90 to 110 minutes, so when the satellite can be contacted in Beijing, relevant tests will be carried out.

Only in the future, after three synchronous satellites are launched into space, can global communications be truly realized except for the two poles.

Now, all of this needs to be tested.

It is during this kind of testing that technology is perfected step by step.

Although the technology developed by Chen Guohua is very complete, it still needs to be tested. Only in this way can it be as foolproof as possible.

You know, Chen Guohua just didn't pay attention for a while, and the bomber made a major mistake during the test flight, causing a 'cold', and it took more than half a year to repair it.

Time flies, and on the last day of September, Chen Guohua finally returned to the capital after finishing his work.

(End of this chapter)