In The Three Body Problem , what are the points that are scientifically explained?

Cheng Xin is just a symbol, she represents the will of most people, that is, without Cheng Xin, there will be Cheng liver, Cheng lungs, and Cheng kidneys... and so on to be pushed to the fore to fight with Vader and others, in short, Cheng Xin is an ignorant and cowardly human race, that is, it is not Cheng Xin who stands in front of Vader, but all mankind.

Technology**, this is undoubtedly a variant of the Industrial Revolution. Since the Industrial Revolution, man has created more wealth than all the wealth in human history combined. From the steam engine of the first industrial revolution, the internal combustion engine of the second industrial revolution, to the computer of the third industrial revolution that is still ongoing.

There is also a gravitational force in the three-body problem, and I feel that this is the most in line with the scientific explanation, after all, there are already certain certification results.

There are many things that are more scientific, such as gravity, and science can also explain it.

The three-body underground city is like building a house underground, and the people in the three-body underground city live in houses that resemble the leaves of a big tree, and the big tree is the pillar of the house.

There are some places that describe physics that are more scientifically explained, and it perfectly uses scientific theories to confirm the ideas it describes, and I feel that it is very appropriate.

In fact, it will more or less reveal some laws that exist in the world, and these laws are also explained by science, telling people that they must abide by them.

There are a lot of physics in this book, about the physical phenomena between astronautics, which are very realistic, and I appreciate this work.

Personally, I think what he means is that our universe is very vast and has a variety of possibilities, and it also satirizes human society, their current destruction of the ecological environment, and the selfishness of human beings in the face of disasters, and the ugly face of human beings. Secondly, the content is rational and rigorous, giving people a very deep sense of substitution, just like a history, so that people can experience the ideas inside.

It is about the infinity of the universe and the insignificance of human beings, and explores a lot of things in the scientific community, which makes everyone feel very magical and wonderful.

In fact, the whole book describes some stories that happened to Mr. Yang Jiang's family of three, but from these stories, it can be seen that the atmosphere of their family is very good, and there are not many contradictions. I also want us to cherish our family.

The main content of this book is very ordinary, and it is also a yearning for knowledge and nostalgia for some talents.

The work "Three-Body Problem" tells the story of the information exchange, life-and-death struggle between the human civilization and the three-body civilization on the earth, and the rise and fall of the two civilizations in the universe.

The military's top-secret plan to explore extraterrestrial civilizations, the Red Bank Project, has made a breakthrough. But at the moment of pressing the launch button, Ye Wenjie, who had experienced the catastrophe, did not realize that she had completely changed the fate of mankind. The first cry of the earth's civilization to the universe is centered on the sun and speeding towards the depths of the universe at the speed of light.

Four light-years away, the "Three-Body Civilization" is struggling, and more than a hundred destroys and rebirths led by three irregularly moving suns force them to flee their home planet. And at this very moment. They received a message from Earth.

After using paratechnology to lock down the basic science of earthlings. The Trisolararan's massive space fleet began to march towards Earth.

The idea of the work

The Three-Body Problem series depicts war and peace in the universe with many characters and complex plots, as well as the dilemma of human beings' own moral choices. Liu Cixin's seemingly ineffable landscapes, such as those of the world of different dimensions, are unreservedly portrayed in a "realistic" way with a panoramic and detailed pattern, and his words are precise and solid, bringing fantasy to life.

Faced with these magnificent cosmic landscapes and intricate physical visions, it feels like leaving a pond and seeing the sea. On the other hand, the world created by Liu Cixin has a vivid sense of history and reality that readers can identify.

The first part tells the story of civilization triumphing over darkness, and darkness fighting back; In the second part, the dark forces have intensified, and mankind is trying to survive; In the third part, the beings of the world are constantly fighting for the victory of light over darkness, which is like a dream, alternating between black and white.

The world is like a magician who transforms, impermanent and endless.

"The Three-Body Problem" mainly tells the story of the 60s of the last century when the United States and the Soviet Union competed for hegemony, China participated in it and proposed the Red Bank Plan, the military's secret plan to explore alien civilizations "Red Bank Project" made a breakthrough, an astrophysicist named Ye Wenjie used the sun as a megaphone to send a signal to the universe, and flew to the depths of the universe at the speed of light, but Ye Wenjie, who had experienced the catastrophe, did not realize that she had completely changed the fate of mankind. More than 100 times of destruction and rebirth under the dominance of the three irregularly moving suns forced them to flee from their home planet, and 8 years later, they received a reply from the Trisolarans, Ye Wenjie replied to the Trisolarans and attracted the invasion of the Earth by the Trisolarans. After using paratechnology to lock up the basic science of earthlings, a future catastrophe lies ahead of humanity.

The first two parts of the three-body problem are okay, but the third part is too ridiculous.

"The Three-Body Problem" has taught us to:When looking at problems, we can see another world through one world, and see another through one dimension. Through the microcosm, we can see the problems of the macrocosm, and through the macrocosm of things, we can change the complex microcosm.

When you think it's about a complex universe, it's just revealing a simple natural phenomenon. And when he tells a simple principle, he can explain the complex universe.

The Three-Body Problem.

As a technomaniac, Liu Cixin destroyed his planet over and over again in **, and reshaped it again and again. Humanity struggled under his gaze, trying to find the last glimmer of hope in his cold, rational mind. Liu Cixin's "Three-Body Problem" obviously punctured the warm dreams that some people are accustomed to.

Common sense and logic are either invalid or distorted in Liu Cixin's **. However, I have to admit that the coldness characteristic of his technomaniac has an extraordinary appeal. What's more, his wild imagination may accidentally touch the core secrets of mankind.

Liu Cixin's "Three-Body Problem" seems to be the first time that he has depicted the scene of the end of mankind so fully. This time, he completely immersed himself in the apocalyptic vision, and found strength and beauty in it, and realized the profundity of human tragedy.

The three-body problem is a basic mechanical model in celestial mechanics. It refers to the three celestial bodies whose mass, initial position, and initial velocity are arbitrary and can be regarded as mass points, and how they move under the action of gravitational attraction only between them. It is known that the three-body problem cannot be solved accurately, that is, it is impossible to solve all the mathematical scenarios of the three-body problem, and only a few special cases have been studied.

One of the simplest examples of a good three-body question is the movement of the Sun, Earth, and Moon in the solar system. In the vastness of the universe, the size of the planets is negligible, so we can think of them as particles. If we don't take into account the influence of other planets in the solar system, then their motion is only produced by gravity, so we can think of their motion as a three-body problem.

The methods for studying the three-body problem can be roughly divided into three categories: analytical methods, qualitative methods, and numerical methods.

Henri Poincaré, a physicist at the end of the 19th century, came to the conclusion that there was no solution to the three-body problem. To be precise, it is mathematically nonlinear, with no analytic solution, only numerical solution.

However, in the process of calculating the numerical solution, the initial small error will be continuously amplified, as well as the calculation error itself in the process of calculating the superposition, resulting in the final inability to obtain a stable value from the lead of the cherry blossoms, so as to be unable to achieve the motion state of the three-body, and the result is chaos.

With the development of technology, researchers decided to try a type of artificial intelligence, neural networks, which roughly mimic the workings of the brain. The R&D team used Brutus software to generate 9,900 simplified versions of the three-body problem scenarios for training the neural network. The neural network was then tested using 5,000 new scenarios to determine whether it could accurately determine the evolution trajectory of these scenarios.

The results show that the results are not only very close to those of Brutus, but also that the calculations can be completed in a matter of seconds. In comparison, the average computation time of Brutus takes 120 seconds. The algorithm, which is currently in the proof-of-concept phase, can only run for a specified amount of time, and it is impossible to predict in advance how long it will take for a scenario to evolve.

For larger and more complex projects, the "neural network" needs to generate a large amount of data for deep learning, which is time-consuming and expensive. At present, the research team expects the brutus program to be used in conjunction with a "neural network", which is only responsible for the simulation part of complex calculations. AI applications have become increasingly feasible in the operation of celestial bodies and will play a more important role in astronomy in the future.

These two theories appear in the first chapter of the science fiction ** "The Three-Body Problem": the shooter and the farmer, which cannot be explained clearly in the physics world in reality, physics is a science based on experiments and observations, based on a priori facts, put forward some hypotheses, and then verify it through experiments.

There is no way to determine whether the hypothesis is true or false until it is verified on the basis of experiments and observations.

Moreover, the so-called science of human beings is a set of laws summarized by human beings to explain natural phenomena, and in essence, it is not much different from religion: science is only closer to the facts that human beings know, and it is easier for most people to accept and agree with it.

There is no evidence that science is the truth of the universe, after all, it is only a conclusion deduced by human beings with their current observation ability and based on the observed facts.