Chapter 407: Signal from the universe

Li Hao just started to see this extremely regular signal. He didn't care at all, there were too many signals in the universe. ..
But for the first time, he glanced at the signal captured by the space shuttle. He always felt that he had seen this signal somewhere.
With his memory, as long as you see it, you will not remember. The first time I couldn't remember, the signal I saw before was similar in structure to it. The content is still slightly different.
Li Hao's brain was running at a high speed, carefully thinking about where he was, and seeing a signal similar to this.
Just thinking back a bit, Li Hao remembered that when he was translating the materials of alien civilization a few days ago. I saw an alien civilization book called "Low-Level Civilization Science."
He is curious about the civilization of the science and technology library he has obtained, and they are curious about how the civilization is graded. He translated what he was interested in.
The alien civilization divides the civilization level into five levels: the obscurity era, the lower civilization, the intermediate civilization, the advanced civilization, and the overlord civilization.
It is based on the size of civilization's control of the area as a criterion for division. This is the control of the area, not the area explored.
Just like the current human civilization, there is no perfect control over the regions on the earth. Just like deserts, polar regions, and the ocean floor are not controlled by civilization.
Li Hao remembers that the era of obscurity means that it did not find the direction of its own civilization and was still active within a light year near the birthplace of the birth civilization.
He is not convinced, but how to compare the situation of human civilization, according to the classification of alien civilization, he is in the initial obscurity.
Low-level civilization means that civilization already has preliminary space navigation, controls the area within ten light years, and explores within hundreds of light years.
Intermediate civilization refers to the area that has controlled millions of light years. The specific situation book does not introduce it.
High-level civilization and overlord civilization, the area they control has already involved the space dimension. Li Hao still can't understand the meaning of the space units introduced in this book.
This book mainly introduces the situation of low-level civilization. One chapter introduces the communication means of low-level civilization.
The book says that the electromagnetic communication, telepathy, atomic resonance and other methods commonly used in civilization in the obscurity era were not very convenient in the huge space.
The common method used by lower civilizations is to use the gravitational force produced by neutron stars, and to use graviton as a medium for transmitting information.
In the process of using graviton to transmit information, it is inevitable that gravitational waves will be generated very regularly.
Just like the electromagnetic waves generated by electromagnetic communication, they are different from the cluttered electromagnetic waves generated in nature. The modulated electromagnetic waves show extremely regular characteristics.
Although Li Hao couldn't understand the meaning of gravitational waves, he could definitely confirm that this kind of extremely regular gravitational waves may be modulated by civilization.
If a natural star produces such a regular gravitational wave and transmits it to the vicinity of the earth, the probability is too low, lower than the probability that the universe will be destroyed now.
Only when civilization continuously produces such gravitational waves can it show such characteristics.
Li Hao has read the book "Science of Low-level Civilization".
He knew that human civilization now, if it encounters such a low-level civilization. There are only two kinds of endgames, enslaved or destroyed.
The hierarchy of civilization is extremely severe, in such a complicated situation in the universe. It does not meet certain technological standards and cannot master such a large area.
Li Hao is really a little scared now, just because suddenly one day, this low-level civilization star destroyer suddenly sailed to the solar system. Destroy everything.
Zhou Yunsheng saw Li Hao's performance. She took out her handkerchief, wiped the cold sweat on Li Hao's face, and said softly, "Hao brother, what is wrong with you?"
Li Hao's pale face showed an awkward smile, and said weakly, "I'm fine."
He kept encouraging himself: "Don't be afraid, don't be afraid. You will always find a way to deal with it, and you have civilized technology that is much higher than the low-level civilization. As long as it is not a big disaster, there is always a way."
Li Hao's expression gradually recovered, his hoarse voice and unquestionably commanded: "Director Bi Ye, you immediately analyze this gravitational wave in detail. Focus all the power of the physics laboratory and try to analyze all the data we can analyze. . "
"Parrot" Li Hao yelled at the void in front of him.
Soon the green-haired short-legged parrot floated in front of Li Hao.
He shook his head and said, "Boss, please give an order."
"Issue the highest-level order to make the Space Exploration Group space shuttle set off again, and assign gravitational wave detectors in the most reasonable layout. Go to space to collect gravitational waves similar to this.
Free them from having to think about the space shuttle situation, and focus on collecting this data. Even if the space shuttle is out of control, it cannot return to Earth again. They also need to collect this data comprehensively. "
Parrot replied with small wings, "The order has been issued, and Ma Yiming and Niu Zhengfeng are urgently executing the order. The space shuttle is expected to fly into space again in an hour."
Li Hao must get the space shuttle to the sky again to see if gravitational waves similar to it can be collected near the earth.
If it is a means of communication for low-level civilization, it is like the earth is now generating electromagnetic waves every day.
Because of the special nature of communication, they also send gravitational waves at all times.
If you receive this regular gravitational wave again, you can rule out two cases of misunderstanding. There must be a low-level alien civilization near the earth.
There are two situations that he needs to rule out. One is that this gravitational wave occurs naturally by extreme coincidence.
Naturally generated gravitational waves, which have reached the same shape as civilized debugging. Although this probability is extremely low, it is not impossible.
The second is because of some coincidence, the gravitational waves produced by lower civilizations came around the earth by coincidence.
If there are no low-level alien civilizations around the earth, this possibility is almost the only possibility.
Because the stars in the universe are moving at a high speed, some move faster and some move slowly.
Their relative positions are constantly changing. Perhaps the gravitational wave signal he sent from somewhere ~ EbookFREE.me ~ happened to pass by the earth.
The transmission of gravitational waves takes time, and this low-level civilization is now far away from the space where the earth is located.
We need to know that according to the current galaxy movement, the Milky Way is expected to collide with the Andromeda galaxy after 3 billion.
In both cases, this gravitational wave would not be detected again around the earth.
Zhou Yunsheng carefully checked Li Hao's physical condition with a smart ring, and she found that Li Hao was not ill.
Seeing his strange behavior again, and his unusual command. Know that he has a mind.
Zhou Yunsheng helped Li Hao and said to the three laboratory directors at the same time: "I and Hao go to the lounge to relax, you first work as Hao's orders. If you have any questions, I will find you.
Feeling physically and mentally exhausted, Li Hao went to rest with Zhou Yunsheng.
He patted the head of a Babe dog lying on his shoulder, and said in his heart, "If you can be like a dog, how good it is to have a carefree life."