The Science Fiction World of Xueba

"Alin, thank you!"

Shen Yuan looked into the distance and sighed softly.

Pang Xuelin said with a smile: "Teacher, don't think too much, as long as we can accurately locate Sunset 6 at the center of the earth, I am confident that Sunset 6 will be rescued from it within ten years!"

Shen Yuan smiled wryly and said: "It's not that easy, even if we can accurately locate it, we still have to develop a nuclear spacecraft! Although the existing new solid materials can be used as the shell of the nuclear spacecraft, this material is too heavy , using this material to make the shell, our engine can barely propel it to sail in the mantle, but inside the core, it is difficult to move a single step! Now we can develop a core spacecraft engine that meets the requirements within ten years! "

Pang Xuelin smiled, and suddenly said: "Teacher, if the development of the engine is too difficult, why don't we try to reduce the mass of the spacecraft?"

Shen Yuan shook his head and said: "It's not that easy. The material technology we have mastered is only this new solid material that can adapt to the high temperature and high pressure environment inside the earth. Others, such as carbon nanotube materials, are strong enough, but they are not strong enough. High temperature resistance is useless. The only weakness of the new solid-state material is that it is too heavy! Even with a powerful fusion engine, it can barely push it forward in the mantle!"

Pang Xuelin said: "Teacher, have you heard of strong interaction materials?"

"Strong interaction materials? You mean neutron materials and quark materials?"

Shen Yuan was slightly taken aback.

Pang Xuelin shook his head with a smile and said: "No, this substance has the same mass as ordinary substances, but its molecular structure is firmly locked by the strong interaction force, the vibration is almost zero, and its strength is even higher than that of new solid materials. , but the density is one to two orders of magnitude lower than that of new solid-state materials!"

"Alin, are you sure there is such a material in the world?"

Shen Yuan frowned.

The material that Pang Xuelin mentioned is a bit beyond the principles of physics that he can understand, and it is more like the field of metaphysics.

If someone else told him that, Shen Yuan would have left in a hurry.

But this person is Pang Xuelin who discovered inertial neutrinos not long ago, so Shen Yuan had to pay attention.

Pang Xuelin smiled slightly. The reason why he mentioned the strong interaction force material was not on a whim.

on the one hand,

Back then in the dark forest world, human beings had already had certain ideas about the research of strong interaction materials, and even completed the preparation of strong interaction materials in the laboratory.

Earth Cannon World Human beings have developed normally until 2075, and various technologies are sufficient to support the research and development of this material.

Pang Xuelin can follow the same example and find the preparation method of this material in the earth cannon world.

On the other hand, Pang Xuelin is also doing tests.

He wanted to see if the essential laws of the universe were consistent in Liu's sci-fi universe.

As long as the basic rules remain the same, then all kinds of black technologies obtained from Da Liu's world can naturally be used for trial use.

The strong interaction force material is derived from the detector water droplet of the Trisolaran civilization in the world of "Dark Forest".

In the world of "Dark Forest", Liu's description of water droplets is like this.

[The size of the detector is about the same as expected, 3.5 meters long. When Ding Yi saw it, he had the same impression as others: a drop of mercury. The detector is in the shape of a perfect water drop, with a round head and a sharp tail. The surface is an extremely smooth total reflection mirror. The Milky Way is reflected on its surface as a smooth pattern of light, making this drop of mercury look simple and beautiful. Its droplet shape is so lifelike that observers sometimes really think it is liquid, and there is no internal mechanical structure at all.

"What is its mass?" Ding Yi asked.

"There is no precise value yet, only a rough value obtained through a high-precision gravitational meter, which is about ten tons or less."

"Then at least it's not made of neutron star matter."

"I can only guess." Ding Yi raised her head and said, "The molecules of this thing are neatly arranged like a guard of honor, and at the same time they are solidified with each other. Do you know how strong this kind of solidification is? The molecules are like being nailed to death. The vibrations are gone."

"That's why it's at absolute zero!" Xizi said, she and the other two officers understood what Ding Yi's words meant: in matter of ordinary density, the distance between atomic nuclei is very large, and they are fixed to each other. It is not much easier than fixing the sun and the eight planets into a set of stationary street frames with a set of connecting rods.

"What force can do this?"

"There is only one: the strong interaction force can be seen through the mask," Ding Yi said with cold sweat on his forehead. 】

Not long after this conversation took place, the water droplet began to destroy the human joint space fleet. The destruction of the human fleet caused mankind to fall into an unprecedented panic.

A substance that is not in the state of a neutron star is not very heavy. After being magnified 10 million times, the material is still smooth, and the molecules are arranged in an orderly manner without any vibration.

According to the research of the scientists in the world of "Dark Forest", this material does not exist under normal conditions.

This has to start with the basic composition of matter.

As we all know, matter is composed of atoms, which can be decomposed into nuclei and electrons, and nuclei can be decomposed into protons and neutrons, which are collectively called nucleons.

Protons and neutrons can be divided into quarks.

This is the limit of what humans can break down particles so far.

Even the geosynchronous orbit accelerator can't let the quarks continue to decompose.

Quarks can combine with each other to form composite particles.

After a lot of research by scientists, people have found that the quark combinations in the universe are generally composed of three quarks to form protons and neutrons, and no four-quark, five-quark or more quark combinations have been developed.

However, we can theoretically deduce the nature of the tetraquark and pentaquark particles.

When such particles are kept at a certain distance, a strong interaction force can be generated.

Strong force, electromagnetic force, weak force, and gravitation are the four basic forces that maintain the existence and movement order of the universe. These four forces determine the hardness of matter.

If the hardness index of matter given by electromagnetic force is set as 1, the hardness index of matter given by weak force and gravitational force is almost negligible, while the hardness index of matter given by strong force is indeed 100.

Scientists in the world of "Dark Forest" discovered that among the three-quark protons and neutrons, the strong force only exists inside the protons and neutrons, but for four-quark or penta-quark particles, the distance of the strong force can be increased by one To two orders of magnitude, reaching the range of 10^-13 meters.

In this case, the atoms and molecules composed of four-quark or five-quark nucleons can be firmly locked to form a strong interaction material.

Pang Xuelin explained the general principle of strong interaction materials to Shen Yuan, and Shen Yuan was dumbfounded.

"But, Alin, even if this kind of material exists, where do we go to find tetraquark and pentaquark atoms and molecules? Do we use colliders to drive hadron collisions every day to try our luck? The tetraquark and pentaquark atoms obtained in this way I’m afraid it’s just a drop in the bucket.”

Pang Xuelin smiled slightly and said: "Teacher, if you asked me to prepare four-quark and pentaquark matter a month ago, I'm afraid I can't do it, but now, it's not difficult!"

"you mean?"

Shen Yuan looked at Pang Xuelin in puzzlement.

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