I asked you to write about Fishman, and you went crazy with your creations on the spot?

"Lagrange point? Where have I heard this name?! Bingbing scratched his head.

Tanaka Yoshiki was slightly startled:"Professor Han, I remember that the Lagrange point is an important location for space exploration and observation, right?""

Han Rendong explained:"Yes, Lagrangian points are indeed important locations for space exploration, but the original proposal was based on the [restricted three-body problem], and a total of five Lagrangian points were calculated. Three were calculated by Swiss mathematician Leonhard Euler in 1767. Later, the French mathematician Joseph Lagrange deduced and proved the remaining two in 1772.

Since the remaining two are more critical to human activities.

So these five observation points were named after Lagrange."

Speaking of this, in order to better understand.

Han Rendong stood up and drew a simple diagram of the sun and the earth on the whiteboard.

He also marked the positions of the five Lagrang~solar points.

"I won’t go into too specific content here. If you are interested, you can check the information online yourself.

I'm just talking about the key parts.

First, why are Lagrangian points so important?"

Han Rendong pointed to several points on the whiteboard and said:"Because when it is located at the Lagrange point, the small celestial body can basically remain stationary relative to the sun and the earth under the gravitational pull of the two great forces of space and the earth. It will not fly to the sun, nor will it fall to the earth.

Therefore, do not underestimate these small Lagrangian points. They are of extremely far-reaching significance in space exploration.

Most of the space telescopes we know are at these Lagrangian points. For example, the famous James Webb Telescope stays at the Lagrangian L2 point.

It also includes a lunar relay satellite launched by our country on May 21——【Magpie Bridge], also on this Lagrange L2.

Not only that, Lagrange points can also become"parking lots" and"transfer stations" in space. Because Lagrangian points have the natural characteristic of energy stability, spacecraft entering these points only need to consume a small amount of fuel to maintain their relative stability, so they are very suitable for building large space stations.

Speaking of this, I believe many viewers should have reacted.

That's right, the space station in"The Wandering Earth" is built at a Lagrange point.

There are also Lagrangian points between any binary stars.

Therefore, it is not unreasonable for many science fiction works to like to build their base at this point.

Making good use of these locations can make human space exploration more effective with half the effort!

Well, after talking about Lagrange points, let’s go back to the restricted three-body problem.

I've said it before.

The calculation of Lagrange points is based on the restricted three-body problem.

The so-called [restricted three-body problem] is to simplify the three-body problem and simply use the two-star problem to find an approximate solution.

Maybe many netizens think, isn’t this nonsense, such a child’s play?

Indeed, in actual exploration, human detection and understanding of the universe are relatively limited.

Based on our existing knowledge base, we do not have the ability to completely decipher these secrets and laws.

We can only settle for the next best thing.

But it is this temporary compromise that gives us more motivation to improve and progress.

It's a bit digressive, let's continue the topic.

Therefore, the two-star problem is relatively easy for us to solve.

Let me give a simple example. If we regard the earth, the moon and the artificial satellite as a [restricted three-body problem], in this system, the masses of the earth and the moon are relatively close, while the mass of the artificial satellite is very small.

At this time, we can regard it as a [two-star problem].

Because the mass of artificial satellites is so small that it can be ignored compared with the earth and the moon.

Therefore, when we study the movement of artificial satellites, we can completely ignore its gravitational effect on the earth and moon.

Through such simplification, scientists can predict the movement of artificial satellites within a certain error range.

Then simply understand the [restricted three-body problem].

Let's get back to the topic.

Why do I say that the plot design in Lu Chen’s story just challenges the core issue of the current mainstream astronomy in the world and the three-star system!

First of all, I already mentioned

【The restricted three-body problem has a premise.

That is, in a three-star system, one of the stars is much less massive than the other two stars.

Only in this case

【The restricted three-body problem] can be solved in the way of [two-star system]. but!

If the masses of the three celestial bodies are close!

The gravitational forces caused by each other are also close.

Then we cannot treat it as a [restricted three-body problem]!

That is to say, all calculation methods and derivation methods based on the [two-star system] will be invalid!

This is a commonly accepted common sense in the field of astronomy, including physics and mathematics.

So do we have an answer to this Samsung problem?"

Han Rendong paused, as if he was thinking about whether to tell it.

At this time, Nolan suddenly echoed in a deep voice:"No solution! ?"

At this moment, the atmosphere in the judges' room was suffocating to the extreme!

Even the radio could really pick up the sound of heart pumping!

Han Rendong nodded:"That's right, when it comes to the three-body problem with similar masses, the current definition in the scientific community is that there is no untie!!"

The judging room was in an uproar.

The judge said:"No wonder they want to invade the earth! This is their motivation!

Han Rendong:"Yes, the motive is ready to come out!" In fact, when I saw the three-body problem before, I did think of the three-body movement. But the story did not release any more information at that time. I thought the three-body system meant something else, until the appearance of flying stars and Ye Wenjie’s words: Flying stars refer to stars whose rotation and revolution periods are unstable. I am clearly convinced that the meaning of the Three-Body Game comes from the Three-Body Movement, not from a race called Trisolarans. Of course, this race can also be called Trisolarans.

But the name of the Three-Body Game comes not from race, but from the objective cosmic environment.

According to the situation described in the story.

This is no longer a three-body motion, with one planet and three stars, this is actually a four-body system!

But because the planet's mass is much smaller than three stars.

Therefore we can directly regard it as: [Three-body problem】"

Bingbing said in surprise:"Teacher Han, why is there no solution to the three-body problem?!"

Han Rendong:"This is a long story. To put it simply, through various verifications by a large number of mathematicians, we found that the current mathematics cannot be effective Find the laws of the movement of stars in the"Three Body Problem". Therefore, in the story, Lu Chen has been emphasizing that people find the laws of the movement of the sun. This is the reason.

Including King Wen of Zhou, Mozi, Galileo, and Aristotle , are actually people who are looking for this answer.

Including Wang Miao himself.

As for why we can’t find the pattern, the reason is that there is a fundamental problem in the [Three-Body Problem].

That is; [Chaos Phenomenon].

This phenomenon It refers to the seemingly random irregular motion that is common in nature.

A system with chaotic phenomena is a chaotic system.

Generally speaking, the motion of a chaotic system will never repeat regularly, and we cannot predict their future. Make accurate predictions.

However, chaos phenomena are different from true random phenomena.

Random phenomena have no rules at all, just like when we throw dice or coins, the results are random and cannot be predicted.

Systems with chaotic phenomena can often use a A set of nonlinear mathematical equations is described, just like the system of ordinary differential equations for the three-body problem, except that these equations do not necessarily have exact solutions.

In addition, a particularly critical point is that chaotic systems are extremely sensitive to the initial state.

In other words, For a chaotic system, at any point in time, even a small change in its state will lead to huge changes in its subsequent development.

This is also one of the essential differences between chaotic phenomena and random phenomena.

The well-known"butterfly effect" is a type of chaotic system!

A butterfly flapping its wings gently in the Amazon rainforest in South America may cause a tornado in Texas two weeks later.

This kind of The phenomenon is called"Grass gray snake line, veins lying thousands of miles away."

The three-body problem is extremely sensitive to initial conditions.

This leads to the subsequent development being completely unpredictable and chaotic phenomena.

Therefore, the three-body problem cannot be solved mathematically. To get an exact solution, you can only get an approximate solution.

In this way, a big trouble will arise: since it is an approximate solution, no matter how high its degree of approximation is, it is not completely accurate, and there will be a certain error!

In reality In the world, various dynamic systems can be mainly divided into two categories: linear systems and nonlinear systems.

Scientists have discovered that although not all nonlinear systems are chaotic systems, chaotic systems are all nonlinear.

In other words, nonlinearity may be the root cause of chaotic phenomena.

For example, the meteorological system is one of the typical nonlinear systems, and it has typical chaotic phenomena: short-term weather forecasts are generally more accurate, but long-term weather forecasts are generally more accurate. There are often errors in predictions.

Therefore, there is no solution to the three-body problem.

The no solution here means that we cannot get an exact value! We can only get an approximate data.

Why did King Wen of Zhou say that when two flying stars appear, the constant The era will come.

This is not only a common sense accumulated through experience. (To read Baoshuang novels, go to Feilu Novel Network!)

At the same time, it is also a rough calculation.

But being close to the answer is not the answer.

So, they are all wrong!

It is doomed to be wrong! good! []

Let’s stop this issue for now.

It is estimated that many viewers did not understand it.

I won't go on.

Finally, let’s talk about what’s really great about Lu Chen’s plot!

It uses the development of Trisolaran civilization.

A vivid explanation of what it means to be a planet in a three-star system.

The situation faced!

The settings of the Era of Eternity and Era of Chaos are not just imaginative settings.

It can be regarded as a hypothesis and conjecture!

He helped us make a conjectural experimental theory!

This kind of well-founded imagination may be a story to you.

But for us, this is a thrilling and shocking conjecture.

A conjecture can generate a systematic discipline.

For example, we are familiar with gravity.

The origin comes from a conjecture: the earth has gravity.

After that, classical mechanics and laws of motion were born, two epic subject systems.

If we say, on the [Three Body Problem].

We need to study the objective laws of civilizational encounters.

So what about Lu Chen’s plot?

I can even think that he is a"Chaos Era Conjecture"!

The core is: the conjectures of the Constant Era and the Chaos Era!

He shows us in a very realistic and idealistic way what a civilization has experienced when facing the [Three-Body Problem]!

Now you should understand why I say that he challenged the current mainstream astronomy in the world and a core issue of the three-star system!

The value of this conjecture can even be regarded as a piece of gold in the astronomical world!!

Although I don't think there would be life in such an objective environment.

But he at least provides us with a conjecture that we can learn from!

This is the most important connotation of this plot!!"

As Han Rendong's words fell, the judges' room was silent!

After a moment,

"Bang, bang!"

Applause rang out!

Everyone applauded!

Immediately afterwards, Nolan, Tanaka Yoshiki, Bingbing and others couldn't help but applaud warmly.

Nolan was deeply shocked and said:"After knowing the background and foundation, this content is indeed unique. , fascinating charm!!"

Tanaka Yoshiki looked at Lu Chen on the screen and was as respectful as a god for a moment!

"He has the most extreme imagination! It also has the deepest theoretical foundation! He is creating a new kind of science fiction that is between conventional hard science fiction and soft science fiction! A deeper science fiction based on real science!! The bureau chief waved his hand:"Teacher Tanaka is overrated. It's just hard science fiction. Let's be more modest!" Hahaha! Bingbing cursed in her heart:"Can you be more exaggerated, Bureau? The whole world can see how proud you are."……"

Tanaka Yoshiki looked back at Nolan and said with a smile:"Mr. Nolan, if I ask you to film this story, I feel that you may have another super masterpiece."

Nolan's eyes were eager to try, but his mouth remained calm:"The future is unpredictable."

Han Rendong sighed slightly.

Bingbing asked in surprise:"Teacher Han, what's wrong with you?"

Han Rendong said apologetically:"I feel like I spoiled the plot, isn't that bad?"

The director patted him on the shoulder:"It's okay. , he hasn’t written to the end yet, let’s see if he will write as predicted, and maybe he will bring any additional surprises."

Han Rendong:"At present, invasion is inevitable. What I want to see most next is how he will write, how should the people on earth deal with such a powerful alien civilization. By the way, Bureau, you are right about one thing, this story, Now it can really be viewed as a war game!

For us, the Trisolaran civilization is indeed a very good imaginary enemy!"

The director nodded and looked at the time:"Unfortunately, there is not much time left, there are still two hours left. I guess I won’t be able to finish writing again."

Bingbing:"It’s okay, just overtime!""

"Yes, overtime!"

Several guests laughed.

……

And now, off screen.

Major film and television companies.

Wanda.

Lao Wang touched his sweaty forehead:"Damn, this won't work. If this continues, the financial funds will not be able to survive!"

Content Director:"Mr. Wang, are you not going to give up?!"

Lao Wang rolled his eyes at him:"Give up? What are you thinking! I won't continue the story even though it's like this, I'm sick!!"

China Film.

Han Sanping and Leader Tong looked at each other.

"Look what I'm doing! Go and be your son, the big project is about to start again!"

"Damn, you have such a mouth~！"

Forty-Nine City, Military Commission compound. duty

_ The line of logic has always been very tight! It's so rare! Our country can produce such an excellent screenwriter and writer!"

An Dingbang looked at the audience, his voice was not loud, but he was deafening:"Now you can treat it as a real war game Deduction!"

The generals in the audience looked at each other and nodded heavily.

……

And now, on the screen.

Lu Chen's story has advanced a lot.

After Wang Miao came out, he explained to Shi Qiang that the name of the three-body game is the answer. There are three suns in the three-body world at the same time, and the three-body civilization has been constantly destroyed.

Shi Qiang was surprised that Wang Miao actually upgraded.

At the same time, I am curious, how does our technology develop so rapidly?

Wang Miao said that this issue requires continued exploration.

The tip that Shi Qiang learned about the Trisolaran civilization was given by Ye Wenjie.

The doubts in my heart have also reached a new level.

Just a few people were eagerly waiting for the next round of the game to start.

A piece of bad news suddenly struck!

Wang Miao couldn't accept it for a long time

——Shen Yufei is dead!

……

"What?!"

When I saw this paragraph,

Bingbing was so shocked that she stood up on the spot!!

PS: This chapter is a little complicated. Due to normal reasoning and explanation, I don’t know if everyone can accept this... force...