"This is what you call the Temple of Science. Isn't it too small?"
Standing downstairs, Chen Xueru looked at the three-story building and felt a little puzzled.
After returning home in the afternoon, Li Aiguo pulled her excitedly and said that he would take her to a good place as a guest.
The result is such a small building.
“It doesn’t matter how high the mountain is, there will be immortals and spirits; it doesn’t matter how deep the water is, there will be spirits if there are dragons. The building is not big, it depends on who lives in it. If you pull out a random person from this building, he has more education than All the people in our neighborhood are taller together. If you knock on any door, the one who opens the door will always be a professor. Li Aiguo also didn’t expect that the famous “special building” in later generations would be like this. simple.
Especially since Buildings 13 and 15 have not yet been completed, Building 14 is like a lonely bachelor, with four edges like lines, straight and square, but a little lonely.
“They are all great professors.” Chen Xueru’s eyes lit up instantly.
Chinese people have always respected senior intellectuals, even in this era when workers have the highest status.
“Let’s go, Dean Qian is probably waiting at home.”
Qian's family lived on the left side of the second floor. The first impression Li Aiguo had here was that it was clean. Unlike other Khrushchev buildings, every household here had an indoor kitchen and bathroom.
There are no firewood, cabinets, basins and other debris in the corridor. The stairs are clean and even the walls are painted with white ash.
“It’s so beautiful here.” Chen Xueru couldn’t help but admired, “It would be great if we could live in a house like this in the future.”
The young couple climbed to the second floor. , there was an electric light hanging from the ceiling in the corridor. The light bulb was covered by dust, and there was an old-fashioned black round light switch on the side of the door.
There is a small window on the ginger wooden door.
The doormat at the door is made of straw, and there is a faint layer of soil underneath from the feet of visitors.
It seems that Mr. Qian often has people visiting here.
Chen Xueru was about to knock on the door when Li Aiguo hugged her and reached out to press a button.
Zizi. The low electric ringtone sounded, and the girl Chen was shocked.
It is indeed a place where great scientists live, it is all high-tech.
After a while.
The door opened, and an amiable middle-aged woman looked at the two people outside the door and asked, "Who are you?"
"You are Teacher Jiang, right? My name is Li Aiguo. The train driver at the Qianmen train station, this is my wife, Comrade Chen Xueru," Li Aiguo said politely.
Just kidding, the person in front of me is a famous soprano and vocal educator.
"It's Comrade Patriot, come on, come in quickly, our old money has been waiting for you for a long time." Teacher Jiang looked Li Aiguo up and down, and was a little curious about why the old money never liked to interact with outsiders. I often mention a year-end friend these days.
He has a burly figure and an upright appearance. More importantly, he exudes a sense of righteousness and simplicity unique to workers, which is reassuring.
As for his daughter-in-law, she is very beautiful and always has a soft smile on her face. At first glance, she looks like a virtuous little daughter-in-law.
Teacher Jiang had a very good impression of the two of them. After welcoming them into the house, he shouted towards the study: "Old Qian, the patriotic comrade is here. Come out quickly."
"Coming, coming!"
Qian Lao put down his pen and walked out, his eyes instantly falling on the bag in Li Aiguo's hand.
"You're already here, why bring any gifts? We don't have such rules in our country."
"These are walnuts brought by a friend of mine from Suzhou." Li Aiguo put the bag away with a smile On the table.
When he heard that it was Suzhou Walnuts, Qian Lao swallowed his words and his expression changed a little.
When Li Aiguo opened the bag and took out the plump walnuts one by one, Mr. Qian couldn't help but said: "These are really walnuts from my hometown. When I was a child, I liked to eat walnuts the most. Unexpectedly, there were more than ten walnuts at a time. "You can still see it in the year."
Teacher Jiang nodded appreciatively. Walnuts are not worth much, but the meaning of walnuts in his hometown is very different. This train driver is really good at being a good person.
"Since it is patriotic, just accept the old money."
"Okay, okay" Mr. Qian really couldn't bear to part with these walnuts.
He has a special status now. He needs to report in advance when traveling on weekdays. If he returns to Suzhou, there will be too much noise.
As for letting people purchase walnuts from Suzhou, it is a bit suspected of being a privilege.
The walnuts sent by Li Aiguo were just right for him.
"You guys wait, I had to pack the tea leaves a while ago." Mr. Qian went to pour tea for the two of them personally.
Li Aiguo also took the opportunity to secretly look at the layout of the house.
This house has three bedrooms. Living room, study room and kitchen are all available.
The kitchen has a large coal-burning stove, which is all covered with white ceramic tiles. There are two large iron pots in front and behind the stove, and water is boiled in the middle.
There is a bathtub in the bathroom, so you can take a hot bath every day.
It can be seen that although the country is in difficulty, it still does its best to provide necessary material conditions for returning scientists like Mr. Qian.
"Come on, Patriot, Xueru, you guys have a try on this." Teacher Jiang also took out a plate of snacks from the cabinet at this time.
“It’s Zhongguancun dim sum, it looks pretty good.” Miss Chen praised.
There is a saying in the capital that "Lao Mo's cakes, Xinqiao Sanbaole's bread and Zhongguancun's foreign snacks".
Li Aiguo didn't like eating such foreign things, so he just drank a few sips of tea comfortably.
A few people chatted for a while, and after learning that Teacher Jiang was a singer, Miss Chen, who had been interested in singing since she was a child, asked Teacher Jiang to learn bel canto.
Teacher Jiang was very envious of Miss Chen’s sewing skills, and the two lesbians started chatting enthusiastically next to her.
Mr. Qian brought Li Aiguo into the study.
The study room is very large, with huge dark bookshelves on the left and right sides filled with books, many of which are in English.
A blackboard hangs on the wall, filled with dense calculation formulas.
Li Aiguo walked over, looked at it for a while, and asked: "Mr. Qian, are you calculating Qian Xuesen's ballistic trajectory?"
"Can you understand?" Qian Laogang closed the book. The door, stood at the door in shock.
“I can understand it, not much, I can only understand a little bit.”
Li Aiguo picked up the chalk and added a line of calculation formulas on it.
“You also know that I really like reading, all kinds of books.”
"."
Qian Lao found that the calculation formula happened to solve a difficulty that he had not broken through. At this time, he didn't care about the entanglement, and quickly picked up the chalk and calculated for a while.
Half an hour later, Mr. Qian threw down his chalk head excitedly: "This is the angle when entering the atmosphere. Once you have figured out the angle, the next step will be done."
Mr. Qian suddenly paused. He stopped, looked at Li Aiguo suddenly, took his arm enthusiastically, and asked him to sit down.
"Comrade Patriot, it seems that you also know a lot about missile trajectories. Come on, tell me what you think."
Li Aiguo opened the system silently and saw He glanced at the one hundred points that had been deducted, and cursed: Don't you understand, I spent a lot of money for this trajectory.
But if Qian Xuesen’s ballistics can really be used on Dongfeng No. 1, these points will be well spent.
"Mr. Qian, the most important thing to consider for long-range missiles is to prevent interception."
As soon as these words came out, Mr. Qian patted his thigh and said excitedly: "Be forward-looking! Comrade Patriot, you Very forward-looking.
When I returned to China, I proposed to develop an anti-interception missile, but some comrades did not care. They felt that there was no good way to intercept missiles abroad.
They actually don’t know that the American military has developed computers and established a microwave early warning radar system in cooperation with the Massachusetts Institute of Technology.
Beginning in 1953, the National Security Council of the United States established this kind of radar system nationwide - also known as the [Semi-Automatic Ground Environment] Air Defense System, or Psyche for short.
This system can automatically identify missiles. Although it is temporarily unable to intercept missiles, I believe that according to the temper of the United States, intercepting missiles will definitely be put on the agenda soon. "
Speaking of this, Mr. Qian suddenly stopped and looked up at Li Aiguo: "Computer, do you know what a computer is? "
"Yes, I have seen in foreign journals equipment that can perform thousands of calculations per second. "Li Aiguo said.
Mr. Qian is now somewhat immune to Li Aiguo's magic. He nodded and said: "Although this news has not been announced to the outside world, my teacher has taught us several times that in the future Missiles without anti-interception capabilities can only be called second-kicking missiles. "
"Two kicks? Mr. von Karman also knows about this stuff? "
". The teacher is very knowledgeable about our Chinese culture and particularly likes our ancient fireworks. He thinks they are the earliest rockets and missiles. ”
The principle of fireworks, rockets and missiles is the same, they all burn explosives and then launch into the air.
In principle, the second kicker is also a type of missile.
Ahem, Bangge is really a person who does big things. He has just started playing with missiles when he can walk.
Yesterday, the bucket at Third Aunt’s house collapsed, causing a lot of chaos in the courtyard.
Retracting his thoughts, Li Aiguo answered: "If you are powerful, you will have flying bricks, but if you are poor, you will have aerodynamic design. The Qian Xuesen ballistics you have researched is the best way to prevent interception."
" It is so correct to say that if you are strong, you will fly bricks, but if you are poor, aerodynamic design will be the best."
This is the first time Mr. Qian has seen someone use such popular language to describe the design of a missile.
The only martial art in the world is speed. As long as the missile is fast enough, no interception system will work.
However, the increase in missile speed means an increase in cost.
If you want to be diligent and frugal, you can only use your brains on aerodynamic design.
Only workers who are truly involved in frontline work can have such straightforward and intuitive insights.
Mr. Qian no longer struggled with Li Aiguo's identity as the train driver, and continued: "Domestic rocket engine technology is underdeveloped, so I used Qian Xuesen's ballistics on Dongfang 1, hoping to enhance the performance of Dongfang 1. Let it become a trump card that the enemy is afraid of. It is just too difficult and the effect is not yet certain.
Many comrades in the project team think that the already mature parabolic trajectory should be adopted. "
Li Aiguo. "It's definitely useful. I've foreseen it."
"You've foreseen it." Qian Xuesen wanted to ask the reason, and Li Aiguo continued: "Mr. Qian, when the old Mei family didn't let you leave, the biggest problem The reason is because of Qian Xuesen’s ballistics. The people in Lao Mei’s family are bad, but they are not stupid. This is enough to illustrate the importance of Qian Xuesen’s ballistics.”
As soon as these words came out, Qian Lao’s face changed. A change of expression.
He had never looked at the problem from this perspective.
But when I think about it carefully, it makes sense.
The more your opponent values something, the more important it is!
Qian Lao nodded heavily: "Patriot, I will try my best to use Qian Xuesen's ballistics on Dongfeng No. 1."
Li Aiguo breathed a long sigh of relief.
Mr. Qian had not realized the importance of Qian Xuesen's ballistics in this era.
But Li Aiguo, who has the eye of the sky, knows that Qian Xuesen's ballistics has been destined to become the nemesis of the missile defense system since its birth.
Qian Xuesen’s ballistics has a great origin, derived from the unfinished “black technology” of Lao De’s family - the Silver Bird air and space strategic bomber.
Eugen Sanger and Werner von Braun, who proposed this plan, were abducted to Lao Mei's house after Lao De's house was smashed to pieces.
After Qian Lao proposed Qian Xuesen’s ballistics based on the Silver Bird air-space strategic bomber in 1948, it was not that he did not pay attention to it, but was artificially suppressed.
Otherwise, when he, a young scientist, returned to his home, why would the people in the old American family be so nervous?
Generally speaking, the trajectory of a ballistic missile is a parabola. The trajectory cannot be changed after launch, and the missile is easily intercepted.
Qian Xuesen’s ballistics, in layman’s terms, is the “unpowered lifting body re-entering the atmosphere and gliding ballistics”
Does it look familiar? That's right, it's the space shuttle.
Its advantage is that the missile enters aerodynamic gliding at the end of its ascent stage, and the aerodynamic surface is fully controllable during the entire flight phase.
By adjusting the flow field, the aircraft can be placed in a high-speed aerodynamic flight state, that is, it can perform maneuvering flights such as hovering, diving, sideslip, and even roll. It can flexibly change the target and change the flight trajectory. Its use flexibility is improved compared with traditional ballistic missiles. an order of magnitude.
The "Qian Xuesen" ballistics is just that it has been proposed for a long time, but it does not mean that it is a "backward theory".
On the contrary, Qian Xuesen ballistics is a great theory that transcends the times, is very forward-looking and great.
This theory can not only be used in weapons, it can also be used in many industries such as aviation travel and alien planet exploration.
It was just that it was not taken seriously at the beginning. It was not until Dongfeng 17 used Qian Xuesen's ballistics that Lao Meijia and others were blinded.
With the previous Dongfeng 21, they could calculate the trajectory and try to intercept it.
Even if Dongfeng 21 has the ability to change orbit, it is still predictable to a certain extent.
[Note: Dongfeng 21 is a land-based mobile medium-range ballistic missile installed in 1991. It is a second-generation missile.
Dongfeng 17 is a hypersonic short- and medium-range conventional ballistic missile unveiled in 2019. It belongs to the third generation. 】
Dongfeng 17 is different, its trajectory is completely unpredictable.
Later, the Dongfeng 26, which also adopted Qian Xuesen's ballistics, was even known as an aircraft carrier killer.
Precisely because there was no way to intercept, the Laomei family had to put the defense system at Bangzi's house, trying to use space distance to gain response time.
As for whether Bangzi’s family will be bombed, that’s not something Lao Mei’s family should consider.
No normal person would care about the safety of a tool.
Just throw the tool away after it breaks.
The application of Qian Xuesen’s ballistics is a long and difficult process.
Now under the personal supervision of Qian Lao, Qian Xuesen ballistics has been used since Dongfeng No. 1, and the parabolic ballistic trajectory of Lao Maozi P-2 missile has been abandoned. The domestic development work of the second kicker is equivalent to a loss of twenty Years of detours.
Perhaps the iron-hulled ship of the old Mei family will no longer dare to hang around in front of the house in future generations.
Later.
After sensing that Li Aiguo had good views on missiles, Mr. Qian raised his concerns again.
"There is still another difficulty in the design of the rocket engine. We can imitate the engine of the P-2 missile, but its propulsion force is too small and cannot be used as an intercontinental ballistic missile."
Of course, Mr. Qian still has something he hasn't said yet.
Last year, the authorities included the development of rocket technology into the national 12-year scientific development plan.
This year Mr. Qian suggested to the superiors to start research work on artificial satellites immediately, and he quickly received approval from the superiors.
To send our first satellite into the sky, we need a rocket with a high payload.
Li Aiguo said: "One engine is not enough, then we can add a few more."
(End of this chapter)