The atmosphere in the conference hall was generally quiet, but from time to time there were participants whispering to each other about something. Pen "Fun" Pavilion www.biquge.info

"Thank you for your excellent work, your important discovery has bought the New World more valuable time, and we will have more initiative in dealing with this incident." The Commander-in-Chief of the IEA and Federal Minister of Science, Luo Kai, spoke highly of Chang Yu's important discoveries.

"You've won the prize, that's my responsibility." Chang Yu bowed and replied very humbly.

At this time, Chang Yu noticed that the legendary leader sitting in the center leaned sideways and whispered a few words to Commander-in-Chief Luo Kai. Commander-in-Chief Luo Kai nodded again and again, then cast his gaze on himself on the other side and asked again.

"Team Leader Chang, as the first discoverer of the incident, you must have had an in-depth analysis, and we would like to hear your personal opinion, especially your new discovery this morning."

"Okay."

Chang Yu replied very seriously, and he was not surprised by this. Moreover, on the way to the capital, he also had relevant exchanges with Director Oreo.

Next, Chang Yu continued to stand in front of the podium to start his speech, but compared with the previous speech, the following speech contained a lot of his personal understanding of the unknown universe civilization.

"After discovering the first message of an unknown cosmic civilization, our observatory screened out two other messages with the same language pattern and logical structure. Thanks to our previous work experience, we were able to successfully decipher the two newly discovered messages in no time. If these three messages are united, it will help us understand and analyze this incident. ”

Although these three messages do not contain much information, if taken together, we can still try to deduce some clues and different possibilities from them.

"Judging from the first message, we have no conclusive evidence that it is our new world that sends messages to this civilization in the unknown universe, and similarly, the degree of signal attenuation indicates that the civilization of this unknown universe is not precise in sending messages, so it is not certain that their target is our new world."

"But, combined with all the clues, I think it's very likely that all of this is aimed at our new world." Chang Yu judged very firmly.

"Because, the message mentions the strong fluctuations caused by the collapse of space?" Hearing this, the commander-in-chief asked.

"Yes, that's the main reason, but not quite." Chang Yu pondered for a moment before continuing, "I have a question, the civilization of the unknown universe mentioned in the first message that they only detected the strong fluctuations caused by the collapse of space after they accidentally received the message sent out. ”

"First of all, let's assume that the communication request from the new world is sent in the direction of the Milky Way at a maximum speed of 20 times the speed of light (in the opposite direction of the source of information from an unknown cosmic civilization), but the energy of the collapse of the space tunnel is only transmitted in three-dimensional space at the speed of light. From the description of the unknown cosmic civilization, we can roughly judge that the time when they received the communication signal should not be prematurely before the time when the energy of the space tunnel collapse arrived. ”

This means that the communication signal may have been sent by the New World years after the collapse of the space tunnel. However, due to the lack of clues, this time interval is not known to us for the time being. ”

"No, maybe we have other ways to roughly extrapolate some of these specific numbers." Chang Yu felt his eyes light up, and a hint of inspiration quickly passed through his mind, "However, we need to at least analyze the speed of signal transmission of this unknown universe civilization. ”

"On that point, we actually already have an approximate number." After looking at each other, the IEA commander-in-chief Luo Kai and the legendary leader continued, "Combined with the distance between the observatories at different locations in the New World and the specific time difference between the received signals, we have calculated a mean value, and the speed of the signal propagation of the unknown cosmic civilization is between 100~110 times the speed of light. ”

"100~110 times the speed of light!!" Chang Yu couldn't help but gasp when he heard this number.

"So, with this mean, we can roughly calculate the rest of the relevant data." Chang Yu's head raced fast, "This unknown cosmic civilization has received an unexpected communication signal from the New World about 3,500 light-years away, and this communication signal was sent from the New World about 210 years ago......"

[Assuming that the distance between the New World and the place where the unknown cosmic civilization received the signal (it may just be an observation station, not the main galaxy of the civilization) is X light-years, then the energy propagated after the collapse of the space tunnel (about 3500 years ago) was received by the unknown cosmic civilization, assuming that they immediately sent back the first message as soon as they received the signal, assuming that their communication propagation speed was 100 times the speed of light, then the time for the signal to be transmitted back to the New World was (X/100) years, thus, The unknown cosmic civilization was aware of the energy fluctuations caused by the collapse of the space tunnel (3500-X/100) years ago. Then, by using the formula: (3500-X/100)*1=X, the distance of X=3464.4 light years can be calculated. The communication request was sent 207 years ago. The data in the example is rounded, so the actual value will vary. 】

After listening to Chang Yu's reasoning, the Commander-in-Chief looked at the Legendary Leader beside him again, and the Legendary Leader nodded with a smile on his face.

"If you extrapolate according to your logical assumptions, this is indeed the case. However, have you found something irrational? Then, the commander-in-chief smiled and asked rhetorically.

"This ......" Chang Yu also quickly discovered the unreasonableness, "If it was 210 years ago, the new world would not have the ability to communicate at 20 times the speed of light......

"Of course, we can't completely disprove this inference, and it is possible that some person or organization discovered and used the communication equipment of the ruins of ancient civilizations to send communication requests to the galaxy 210 years ago." The commander-in-chief added and then continued to motion, "Let's not discuss this issue for now, please continue to elaborate your point of view." ”

"Okay." Chang Yu nodded in reply, and continued to analyze with concern, "The unknown cosmic civilization mentioned the strong fluctuations caused by the collapse of space, and claimed to have sent an investigation fleet for this purpose. This is a worrying thing. As we calculated the speed of the other party's communication and mentioned in the third message, the unknown universe civilization does not think that our communication speed is very fast. That is, the other party's scientific and technological strength is very likely to be far above us......"

"There is no doubt that the civilization of the unknown universe has also judged our technological level, and has locked in the general direction of the new world. Then we have to think about why they came, whether they meant it to us or not, and when they would arrive in the New World. ”

(Thank you for your continued support, thank you very much.) ）