People comb through these broadcasts and want to dig something deeper.

Soon, a scientist came up with the first hidden message.

The destroyer civilization, that is, the robbers, does not seem to have a good reputation here.

If the "Destroyer" does not kill the opponent in a wave, but instead allows some of the fish that have slipped through the net to escape, the opponent will broadcast the colonization star, technology, and weapons of the Destroyer civilization together.

Even if you don't have such technology, you can run to a market and ask for help from a more advanced civilization.

"Okay...... Noteworthy. ”

What kind of wanted warrants did Yu Yifeng see for the Carret civilization, and there were various bounties...... There's always a strange feeling.

But this kind of broadcast is still quite effective, and he does have a certain amount of vigilance, and if he encounters a similar ship that matches the descriptive characteristics, he will definitely run away.

He thought to himself, "...... Normally, it is impossible for a new human civilization to be a robber......"

Then the second point was discussed, and that was the word "absolute neutrality"!

Dr. Rimbaud stood up and said, "Millions of years ago, in Black's time, there didn't seem to be an emphasis on 'absolute neutrality,' so ...... Can we assume that the Milky Way has actually undergone some changes? ”

"For example, civilizations are divided into hostile factions and camps? They hate each other, which is why some markets emphasize the word absolute neutrality to attract other civilizations. ”

“…… Are there any things we should be aware of, and what other words like silicon-based alliances have you heard...... Could it be an alliance created by silicon-based life? Will they be with ...... Carbonyl biodry rack? It's like what is written. ”

Hearing this, there was a buzz in the room.

This reasoning is quite plausible. Sending gravitational wave broadcasts is much more troublesome than electromagnetic waves, and in general, the sender does not add unnecessary information.

Black opened his mouth, speechless, he didn't know if it was his memory confusion or if it was really the case.

Could it be that he has the information ...... Isn't it enough anymore? He hadn't really heard of any silicon-based alliances.

Black wasn't the top of civilization in the first place, he didn't know much about these things, and ...... Since the fall of the original civilization, the popularization of the common sense of the universe of citizens has gradually become despised......

Yu Yifeng nodded slightly and said, "This point is very good, now let's talk about my opinion." ”

"The beginning of the era of gravitational waves means that the entire galaxy can communicate...... At least by and large, it is communicative. Everyone wants to communicate with alien civilizations and learn from each other's strengths, and there is nothing wrong with this kind of thinking. ”

"But our strength is still relatively weak now, basically full firepower, the Homeland plus the Deep Space can compare to the original ...... The Green Light Man's spaceship. Our weapon system is still too weak to break the ion shield at all, and if we fight the original civilization again, we will still be beaten. ”

"So, I'm not going to leave the Mio system directly, but I'm going to develop it for a while longer and study our nanotechnology......"

"Yes, dig deep into nanotechnology! Including a variety of nanoweapons! We must first have the ability to protect ourselves! ”

Hearing his words, everyone present calmed down.

Another more rational scientist also stood up in support: "Yes, our science is still advancing by leaps and bounds, and it needs a lot of resources to promote. ”

"It is indeed irrational to leave this star at this time......"

"No matter what factions there are in the galaxy, or if they are hostile to each other, it doesn't matter to us at all! As long as we develop ourselves! ”

Yu Yifeng nodded and continued: "While burying our heads in development, we need to learn more information through interstellar broadcasting during this time. ”

"Only by knowing more things can we have more solutions."

The crowd in the room began to talk again.

The first time they came into contact with the extraterrestrial information of the Eight Classics, some people were adrenaline pumping and very excited, but many more were contemplative.

The current strength of human beings is very easy to bully low-level civilizations, but among interstellar civilizations, it is not strong.

You have to endure loneliness, and when you are strong, you can speak.

"It's still going to be developed. Target...... Nanoscience! ”

"Adjournment!"

After the meeting, the crowd dispersed. Yu Yifeng and the others did not leave immediately, but discussed with a small number of scientists.

"Can we emit gravitational wave signals?" He asked Dr. Chan curiously.

The gravitational wave information that has been detected so far is very simple, basically just a few sentences. Therefore, Yu Yifeng guessed that this kind of transmission technology is more difficult, and can only transmit relatively simple information.

Sure enough, Dr. Chen shook his head and said, "With the means of the new human, for the time being, we only have the ability to receive broadcasts, and we can't send them. After research, we believe that there are several ways to send broadcasts. ”

"First, with the help of the vibrations of the cosmic strings."

The cosmic string is a hypothetical object in string theory, a bit like spider silk, which can be said to be an extremely dense energy line, with a diameter of only 10^(-29) cm, which is equivalent to 10 times the radius of the hydrogen nucleus.

However, a centimeter-long cosmic string is larger than the mass of the entire Himalayas, and the mass is variable, depending entirely on its tension: the longer it is pulled, the tighter it is taut, and the greater the mass.

"When a cosmic string vibrates, it can create gravitational waves when it is knotted or formed at sharp angles."

Well, this method is certainly not humanly achievable. And the mysterious cosmic strings, which are generally in the center of the Milky Way, provide a strong gravitational pull and pull the entire Milky Way.

This kind of civilization, which uses the cosmic strings, is certainly much more powerful than humans.

Dr. Chan continued, "In the second method, a hair-thin neutron parallel substance is used to mimic cosmic strings. This high-density substance can also vibrate to create gravitational waves. ”

Yu Yifeng smiled bitterly in his heart, using the material of the neutron star, but not letting it explode, this is more unreliable than the cosmic string.

"So...... Civilizations that can use gravitational wave broadcasting are much more powerful than us? ”

Dr. Chen shook his head: "No, there are the latter two methods, and we may be able to achieve them through technical means. The third way: use the tandem vibration of artificial black holes! ”

In this scholar's explanation, Yu Yifeng understood the basic meaning.

The basic principle of gravitational wave emission is the vibration of long strings with an extremely high mass density.

"If a series of miniature black holes were connected and "vibrating", gravitational waves could actually be created on a more objective scale. ”

"As long as you lose 10,000 grams of mass, you can transmit one or two signals, and there is no problem with the galactic range. We are working on this and there are no theoretical difficulties, but technically...... It is not yet possible to create a massive black hole. ”

In the Hadron Collider, humans have been able to create ultra-small miniature black holes. However, these black holes will evaporate in the blink of an eye and cannot be preserved for long.

Yu Yifeng looked at Dr. Chen's indifferent words, and his heart sank, human science and technology are really becoming more and more dangerous, first antimatter, and now they want to create black holes.

However, there is such a thing as a black hole, Yu Yifeng knows a little.

For humans, the speed of creation in the hadron collider is much greater than the rate of evaporation, and it is certainly far less dangerous than antimatter...... When the mass of a black hole is not large, its gravitational pull is so low that it cannot absorb even a single proton, let alone destroy the whole world.

"It doesn't matter, if we can find a way to make a big black hole, or find a natural black hole that is only a billion tons in size, maybe we can gain more."

Dr. Chan continued, "There is a fourth, easiest way, to warp space with some dark matter...... Through dark energy, dark matter, it mimics gravitational waves, transmitting spatial ripples to the outside world. ”

"This principle is very similar to the curvature engine, except that it has changed from building a curvature bubble to diverging outward."

"I think this method is the easiest, even L2 civilization can achieve it!"