Chapter 353: Heat

After this message, no message from the Tollor civilization came. The message from the Tollor civilization, so far.
This news shocked Xiao Yu.
"Ten years, is there only ten years ... the principle of entropy increase, heat death?" Xiao Yu thought quickly, flashing these words in his mind.
Xiao Yu knows very well what the entropy increase principle is, and also knows the huge impact of the entropy increase principle on this universe. It can be said that it is precisely because of the principle of increasing entropy that time will not flow backwards and the universe will be shaped like the current one.
Entropy is a value that measures the degree of chaos in the distribution of matter in a system. It was born from the second law of thermodynamics. The concept of entropy can be illustrated with a simple example. Everything in the universe has its own entropy value, a tea cup has its own entropy value, a pen has its own entropy value, and even a computer or a human has its own entropy value.
The entropy value is divided into different sizes. For a newly built house, its entropy value is very low because it is neat and orderly. A rundown, dust-free house has been cleaned for a long time, and its entropy value is higher than that of a new house.
Entropy is such a thing. The entropy of a broken cup is higher than the entropy of a good cup. The entropy of a broken computer is higher than the entropy of a new computer. The entropy of a rotting corpse is higher than that of a living person. High entropy. In short, for a thing, the more broken it is and the more chaotic the structure, the higher its entropy value.
In an independent system, the entropy value can only increase, not decrease. Therefore, a broken cup will not become a good cup, a broken computer will not become a new computer, the dead will not become a living, and time cannot be reversed.
Of course, a broken cup can be made better by repairing it, and repairing a broken computer is not inferior to a new computer. Even if you master the cloning technology, you can clone a living person from a corpse, but there is one thing to note. The concept of entropy is for an independent system. Now that it has been patched up, with the intervention of external forces, it is no longer an independent system.
From the principle of entropy increase, it can be known that if you do not clean a room, it will only become more and more dirty, and it will not happen that if you do not clean it, it will become more and more clean. If a house is regarded as an independent system, without the influence of all external conditions such as gravity, external energy, external organisms, etc., as time goes by, this house can only become more and more chaotic. The white ash will fall off and the house will collapse. Eventually, all the materials that make up this house will walk uniformly in this system. At this time, its entropy value reaches the highest.
This is the principle of entropy increase. For example, our universe is an independent system, so the end of the universe will inevitably be heat death. After countless years, there will be no stars in the universe, all stars, planets, comets, white dwarfs, neutron stars, and even In a black hole, all will disappear, and the universe at that time will be filled with an infinite number of leptons and photons.
This is the inevitable outcome of an independent system.
"Principle of entropy increase? Will this small universe dissipate?" Xiao Yu's mind faintly felt a bad feeling.
"According to the Tollor civilization, this small universe will be silent within ten years ... all the material inside it will disappear. Is the speed of the entropy increase related to the size of the universe? It is too large, so the entropy value increases slowly. This small universe is too small and unstable, so the entropy value increases quickly, and it will reach the highest entropy value within ten years? "
Xiao Yu began to worry, because Xiao Yu also thought of another possibility.
That is, time.
"I do n’t know if the time of this small universe is synchronized with that of the large universe. I have been here for almost a year, and I do n’t know how long the time has passed in the real large universe. Since this small universe, the entropy value is increasing very fast. Fast, does that mean that the time is passing faster than in the universe? If I stay here for a year, the time in the universe has passed a million years, then it ’s bad. In millions of years, it is enough for the cleaners to restore their vitality and the guardians to restore their flagships. At that time, the galaxy did not know what it would look like. I hope this will not happen ... Silently praying in my heart.
Anxiety over this matter temporarily overwhelmed curiosity about space weapons.
"It is necessary to hurry up." Xiao Yu thought silently, quickly transferred the space weapon technology taught to him by the Tollor civilization into his mind, and began to watch.
Finally, I got the most important one of the legacy of the Tollor civilization. In Xiao Yu's heart, there was no exciting thought. To have life to take, to have life to enjoy. Xiao Yu doesn't think that with his current technology, he can resist the increase of entropy and heat death.
"From the history of the Tollor civilization, this small universe has existed for at least more than 500,000 years. Then, there is no reason for it to maintain the stability of 500,000 years in just a short period of ten years. There is only one explanation. In the past half a million years, the process left by the Tollor civilization must have been continuously acquiring energy from the universe and relying on external forces. Only to stop the weakening of this small universe system. "
"In this way, perhaps the entrance galaxy of this small universe can be explained so empty. All the material in this galaxy, except the star is too big to be used, the rest of the planets, comets, asteroids and the like It should be that Tollor civilization got into this little universe and turned into energy. "Xiao Yu thought secretly.
"In this case ..." Xiao Yu's heart suddenly came up with another individual thought.
In fact, according to the laws of physics, time is not irreversible. Time is just a virtual concept. It is a value for measuring material movement. When a person walks from the door to the school, it takes five minutes. If the person walks from the school to the door and returns to the origin, then Can you think that time is five minutes back?
This example is somewhat inaccurate. After all, in our world, besides this person, there are many other materials, wind is blowing, and cars are moving. So to simplify this example again, if there is only one elementary particle in the universe, it is assumed that this elementary particle itself will not undergo any changes. Except for this elementary particle, there is no other matter in the universe. It took five minutes for Land A to reach Land B, and then it returned from Land A to Land B, and everything returned to its original point. So was time five minutes back?
Some people may say that time has not passed back, time has passed. But after this elementary particle returns to the origin, everything in the universe is exactly the same as it was five minutes ago, so why can't we say that time is backward?
This example is a bit extreme, and of course this does not happen in the real world. But even in the real universe, there is still a way to go back in time. At the moment, Xiao Yu thought of such a solution. Of course, whether it can be achieved is another matter.
Although the principle of entropy increase indicates that the time of an independent system is irreversible, none of us can be sure that our universe is unique. Perhaps the rest of the universe really does not necessarily exist. In the rest of the universe, there may also be a lot of material and a lot of energy. If one day, we can obtain energy from the rest of the universe to subsidize our universe, then the entropy value of our universe may be reduced, the entropy value is reduced, and time may be reversed. Just like the intervention of human power, it will restore the room from dirty to tidy, and the intervention of human power will make the broken cup return to normal.
"Civilization that can do this must have existed like a god. Sixth-level civilization is not considered ~ EbookFREE.me ~ If ... I mean, if one day I can reach this level, I will This big universe is out of chaos anyway, and it is not impossible to bring everything back to the original place and bring the earth back to the human era. "Xiao Yu secretly thought," This ability must be only at level 7 or above civilization Ability, backwards in time, logical weapons ... I don't know what the mystery of level seven civilization is. "
Backflow of time and logical weapons are two abilities that Xiao Yu speculates that a level 7 or higher civilization may have.
Shaking his head secretly, throwing out this chaotic thoughts, Xiao Yu continued to study this material carefully.
The result made Xiao Yu a little disappointed. Originally, Xiao Yu thought that from this technical document, he could peek into the mystery of the space science and technology of Level VI civilization and pave the way for himself to step into Level VI civilization. I thought.
Because this technical document has the same properties as the ghost detector that Xiao Yu once obtained, it only explains the manufacturing and use methods. There is no application principle, technical details, and scientific theory. In other words, with this technical document, Xiao Yu can make space weapons and use space weapons, but there is no way to make even small changes to this space weapon. Because Xiao Yu didn't know the manufacturing principle of space weapons.
"Man, don't be too greedy. It is enough to have this kind of weapon. Its principle may be studied in detail later." Xiao Yu secretly thought, dispelled that unhappiness in his heart, and began to make according to the guidelines of technical documents. The first level 6 civilization weapon that he owns, splits the space. (To be continued.)