Laboratory floor, energy experimental area.

Li Yu is installing a linear collider with the assistance of a robot. Due to the use of force field acceleration and normal superconducting materials, the linear collider can reach only 30 meters and can accelerate to 99.999999999999999% of the speed of light within a short same ten meters.

Miniaturization means integrating more components, and the assistance of robots can greatly reduce Li Yu's workload.

Lin Wanbai assisted on the side, but more about studying.

"Li Yu, do you value Fang Qianmo very much? He also went to Donghai to attend her company opening ceremony." Lin Wanbai took the opportunity to ask Li Yu about this question that had been hidden in her mind for several days.

"Of course, Fang Qianmo is also a genius like us. People of our type are rare in this world. They can win a friend as one." Li Yu explained to Fang Qianmo his view on choosing friends.

Fang Qianmo was a little confused, "But I think Fang Qianmo is not as genius as you said!"

"This is why Fang Qianmo has gone wrong. She has devoted more energy to business and family, and she has not invested enough in scientific research, so she has achieved fewer achievements in scientific research. But during her cooperation with her in school, I found that she is still very talented."

"But I believe that one day she will wake up and she will find that scientific research is the ultimate destination of her life."

Lin Wanbai understood a little, "Just like I wasted my energy in anime and TV series before? I also felt that wasting time was a pain and stain of my life."

Li Yu nodded and started working attentively.

After the crystal grew, Li Yu transformed and upgraded the space detector, and Li Yu re-activated the space detector.

Li Yu conducted detection and strengthening of a signal, so when the space detector is started, the space wave signal is clearly received. It can be seen that this signal is a long-wave signal, so it took Li Yu and Lin Wanbai three days to completely collect the space wave signal.

In order to ensure the integrity and reliability of the data, Li Yu stopped receiving the signal after the data of this signal was repeated five times and analyzed the data of this signal with Lin Wanbai.

"Hey! This is... This signal fluctuation is indeed not caused by the operation of space and celestial bodies, but artificial space waves and amplitude modulated space waves containing information after signal modulation?" Li Yu said rarely a little dazed.

Space exists in the form of energy, and all things in the universe interact with it to generate secondary energy waves and fields of various frequencies. This is the external manifestation of space energy. Li Yu studies space through this secondary energy wave and field.

It’s not that Li Yu doesn’t want to study space directly, but that equipment and materials limit Li Yu’s ability to study space, so he has no way to study space directly.

So Li Yu now has no idea of ​​using space waves as a communication carrier because it has no meaning. To create a space wave communicator, who should I contact?

The waves that Lin Wanbai discovered that were filtered as clutter were actually artificially modulated signal waves, which is of great significance. Although the content contained in this signal wave has not been deciphered, based on the existence of this signal wave itself, Li Yu and Lin Wanbai can infer a lot of information.

First, the existence of aliens can be determined. Secondly, the technological level of aliens is not generally high, and their communication methods are already based on space as the carrier.

The civilization level of this alien must be much higher than that of the Earth. At least, humans have not yet left the solar system, nor have they even carried out colonial operations within the solar system.

Humans' calls are still mainly radio. At most, laboratories have black technologies such as quantum communication, but compared with space wave communication, they are not at the same level of technology at all.

Li Yu forgot his unexpected example. The civilization level of the earth is not high, so he still has different contact with the mystery of space?

Is the earth ready to contact alien civilizations? And is it still such a high-level civilization? Li Yu and Lin Wanbai are unsure.

Now, they have to think about this problem, because aliens have emerged and they cannot turn a blind eye.

Li Yu had no idea of ​​publishing this matter in his mind, and Lin Wan was in vain. In the minds of the two, except for them, other people on Earth did not have the ability to communicate with aliens.

After hesitating for a while, Li Yu and Lin Wanbai looked at each other and had to contact each other! This is an opportunity. I missed this opportunity and I don’t know when I was getting in touch with aliens.

As soon as the decision was made, Li Yu had to think about how to communicate with alien civilizations.

When two civilizations need to communicate, communication is the key. According to Li Yu and Lin Wanbai's speculation, the communication methods within each civilization vary greatly, so there are thousands of languages ​​on the small earth.

So what should be the communication method for the first time between civilizations?

Li Yu was not clear, and Lin Wanbai had no idea. They had never considered this issue before.

Li Yu put down his thousands of thoughts and asked Buwei to first try to decipher the signals contained in this space wave. However, as expected, Xiaowei failed. The information extracted from Xiaowei in the signal wave was garbled, and Xiaowei could not recognize the information.

However, there are still some gains. Based on the amount of information contained in the signal and Xiao Wei's analysis, Li Yu believes that the information contained in this space wave should be mainly text information and a small amount of picture information is supplemented.

Based on its own signal form, Li Yu speculated that if the video content is included, this signal wave should be more complicated.

Faced with this result, Li Yu and Lin Wanbai had to seriously think about how to communicate with two different civilizations.

This proposition is quite big. Li Yu asked Xiao Wei to let her move freely online to find answers to this. He and Lin Wanbai kept proposing hypotheses, verifications, and then verifying, and then verifying them in the laboratory.

For this work, Li Yu stopped all the work that could be stopped in the laboratory.

Finally, Li Yu found the most possible way, using mathematical method. Mathematician Francis Golden pointed out that mathematics is the core of civilization, and if it can express language by mathematical methods, it is the easiest to be accepted by aliens. The rigor and logic of mathematics can make it one of the possibilities for communicating languages.

The rules of the entire universe are consistent, and the laws of nature are universal in the universe. The knowledge gained from the exploration of the universe may be expressed in different ways in which civilizations express their knowledge, but they will eventually gather at a point, which is the law of the universe itself.

From this perspective, if a civilization wants to communicate with another civilization, if it uses mathematics as its core, the signal it sends should contain the dictionary of this article written based on the laws of the universe of cognition.

For example, each element in the simultaneous table of elements can be expressed mathematically.

The level of civilization that emits spatial wave signals should be able to recognize this problem, so from this perspective, deciphering signals is not a problem, it is just a matter of time.

Of course, if this signal is just a communication between civilizations, it is very likely that it does not contain a dictionary. However, how can you know if you don’t try it?

Lin Wanbai certainly supported Li Yu's opinion. The first thing the two had to do was to compile a dictionary of earth civilization and then compare it with each other.

Compiling a dictionary is not an easy task, but it is not an unsuccessful task for Li Yu and Lin Wanbai.

In the mathematical expression of the dictionary, Li Yu chose binary. Binary has many advantages and is more suitable for the situation facing Li Yu. Humans themselves are used to decimal, because humans have ten fingers, so they are more used to decimal.

With the direction, the dictionary was compiled quite quickly. After half a month, Li Yu and Lin Wanbai divided the work and collaborated to compile the dictionary. Li Yu was responsible for the main trunk of the dictionary, Lin Wanbai added the content, and finally they checked together.

Of course, the language of the dictionary is mainly Chinese characters. Although binary is more suitable for Latin English, who wrote it is Li Yu and Lin Wanbai. Chinese characters are the main ones, and English is the supplement. The main words are Latin-based in expression of formula symbols, and Li Yu and Lin Wanbai are more accustomed to it.

During the process of compiling the dictionary, Lin Wanbai suddenly came over with the terminal and said happily: "Li Yu, look, I have drawn many aliens, guess what an alien looks like this time."

Li Yu curiously took the terminal in Lin Wanbai's hand and saw that there were more than a dozen strange monsters on it. Lin Wan was imagining in the daytime, and her unruly imagination made Li Yu stunned: This Queen of Blades is pretty good, but why do you need to add nine tails? The flower fairy turned into a blue fairy, and her wings were replaced with bats. No matter how you look at it, it doesn't look like Avatar. These two are at least in personal form, and there are almost all kinds of animal and plant combinations behind it. Li Yu complained in his heart, how can a girl like these monsters every family?

This is an episode, which also reflects a certain hidden worry in Li Yu and Lin Wanbai’s hearts. Are the aliens friendly?

Worrying that it would not stop a scientist's strong desire for knowledge, the dictionary was quickly written. After checking it a few more times, Li Yu entered the words into Xiaowei's database, allowing her to start deciphering signals based on this dictionary.

With Xiaowei's computing speed, it took two days to decipher the information contained in the space wave.

"Hello!"

Just such a short sentence.

When Xiao Wei showed this result in front of Li Yu and Lin Wanbai, they rubbed their eyes at the same time. How could this be the case?

Li Yu and Lin Wanbai have made many assumptions, such as this signal is the contact signal between aliens and the mother track star explored outside; a communication signal in remote areas of aliens; broadcast of the alien high-level civilization alliance within the universe, used to guide low-level civilizations and other conjectures.

I just didn't expect that the information contained in this signal seemed to be the same as the first time a human had a phone call, and I could pass the phone line and say the first greeting!
Chapter completed!