Great Power Technology.

Chapter 564 Cosmic Beacon
After leaving Chen Hao's house, Ye Zhou didn't go home, but went directly to his office. Now his mind is full of matters related to the broadcast, and he can't fall asleep at all.

For him, the information revealed in the simulator is actually very clear, and the logic chain is also very simple, but it is not so easy for human beings to start this logic chain.

How to send information into the universe and what information should be sent to the universe have always been questions that human society is constantly exploring, but in fact, no one can give a convincing answer to this question.

For now, if it is sent in the way of directional transmission, then human beings can easily pile up an equivalent power spectral density brighter than the entire Milky Way in a certain direction at a certain time, but when such directional transmission turns When it comes to "broadcasting", what humans can do is too elementary.

Just now, Ye Zhou and Chen Hao woke up an expert from the Chinese Academy of Sciences by phone. After confirmation, they found that the so-called "broadcasting" activities currently carried out by both Chouguo and Huaxia were actually based on The most basic electromagnetic wave equipment is just a radio telescope after the scale is enlarged.

This way of transmission certainly has a certain effect, but its radiant energy will be completely attenuated before reaching the edge of the Milky Way. Farther away, even if there is civilization, what they receive is just clutter.

Wanting to decipher information from it is tantamount to deciphering a person's whispering high-pitched words from the whistling wind thousands of kilometers away.

It is both technically feasible and practically achievable.

Lin Ling hung up the phone in disappointment when he learned of the situation, and broadcasted within the Milky Way. This seems to be wrong, but in this way, the probability of success of the plan is slightly reduced.

He frowned and searched the relevant technical documents under the computer at work, trying to find an ineffective method, but based on his current theoretical basis, even if he listed a small list of "possibilities", there was no way to be sure. really workable solution.

Lin Ling sighed, got up and left the chair, and lay down under the sofa. He wanted to take a rest for a while, but his eyes were still closed, and the door of the office was pushed open.

He sat up again in a jerk, and glanced towards the door, only to realize that it was Miao Ya who had retreated.

"Why are you still sleeping?"

Mia asked in surprise.

"Why are you still sleeping?"

Lin Ling also answered her a question, and the former smiled kindly and replied:

"I just finished the experiment. It's already eight o'clock. Do you want to stay overnight?"

From the end of the first acquaintance, the two have been working together in their respective positions for nearly two years. From the end of the acquaintance, to coming to get along with the superiors, until now, the two peers have finally gradually broken away from the original routine. The way of communication, the relationship is also closer.

"It was all night. I just finished looking for Ye Zhou and dealt with some things. I just came back and almost got some information."

Hearing this, Miao Ya said without thinking:

"Are there any new technological breakthroughs in dealing with things?"

Lin Ling nodded and replied:
"Well, there is no breakthrough in the small fusion structure—wait a minute, let's talk about this first, I happen to have nothing to ask you."

"what's that?"

Chen Hao pulled the chair behind the desk and sat on it. When he passed the desk, he glanced at Lin Ling's computer screen subconsciously, but she immediately realized that this action was appropriate, so she quickly looked away.

Lin Ling noticed her movement and said:
"It does matter, this is what I want you to see."

"My question is, if I want to broadcast retrogressively to the whole universe, and require the broadcast information to be transmitted to every corner of the entire universe, what scheme should I use?"

Chen Hao was obviously interested in Lin Ling's question, she cast a questioning look at Lin Ling, before getting an affirmative answer, she directly dragged the screen to the coffee table behind the two of them, and then got off the chair He jumped up and sat beside Lin Ling.

"Let me see that electromagnetic radiation must be ruled out first, the attenuation rate is too low, and the result of small-scale broadcasting is basically the Milky Way."

"Neutrino communication, this can only be used for directional propagation, too."

"Sonic communication is completely nonsense. Some theories say that the hype is falling into the air. Vacuum is the dead spot of sonic communication."

"Strong force communication is currently only at the purely theoretical stage, and its operability is still like quantum communication—but the problem is that quantum communication is also point-to-point, and it can achieve the effect of broadcasting."

"We've got that few quantum pairs, at least for now."

"In hindsight, the only relatively reliable one is gravitational wave broadcasting. However, gravitational wave theory is weakly related to string theory. If you want to think that gravitational waves can be produced, you must first discover cosmic strings."

"Moreover, the discovery of cosmic strings is only the first step. To construct vibrating strings that can generate enough energy, we need at most to use lower degenerate matter --- this thing can only be taken from neutron stars."

"Taking a step back, if we can obtain degenerate matter, the scale of the vibrating strings that need to be constructed is also exaggerated-a rough calculation, I estimate that it is at the centimeter level, and the energy release should reach less than 5 kilograms per second Just do it."

"Well, if it is really possible to achieve this level, space broadcasting is not difficult."

After listening to Chen Hao's words, a wry smile appeared on Lin Ling's face.

If it is really possible to obtain the degenerate matter under the neutron star, and even process it retrogradely, how about broadcasting a hammer?
Humans can explode by themselves!

It seems that all roads are blocked.

He sighed and said:
"So in your opinion, all broadcasting methods are actually reliable?"

"It's reliable, right? In fact, electromagnetic waves are the most reliable solution. Although the transmission distance is a bit shorter, it's better than nothing."

"Moreover, this shortness is relative to the scale of the universe. Is it enough to reach the entire Milky Way?"

"It is enough."

Lin Ling shook his head, and recounted the details of the backwashing plan, before Miao Ya fell silent.

She has already understood the difficulty of this so-called "broadcasting plan".

If the information is distorted, the transmission distance must be long enough-how is this possible?
Perhaps, setting up relay stations is a more feasible way, just like the cellular network deployed by humans on the ground.

But the premise of setting up the relay station is that human beings are unable to fly to the edge of the Milky Way.

This is yet another paradox.

After thinking for a long time, she sighed helplessly, and spread her hands to express to Lin Ling that she could do something. Seeing this, Lin Ling was not disappointed. What he wanted from Chen Hao was not the final solution, but the final solution. References for ideas.

Now, his purpose has obviously been achieved.

He patted Miao Ya's shoulder heavily, and was about to speak to comfort him, but the other party suddenly raised his head, and when Lin Ling was still in a daze, he said in a surprised tone:
"Actually, we can use electromagnetic waves!"

Lin Ling was taken aback for a moment, and asked back:
"Are you saying that electromagnetic waves travel far enough?"

Chen Hao nodded with no confidence, and replied:

"Yes, definitely far enough."

"However, in ancient times, the optical signal transmission of beacon towers was far enough!"

"Ye Gong, have you discovered that electromagnetic waves are beacons on a cosmic scale?"

(End of this chapter)