Earth.

Qinghai-Tibet Plateau, the first laboratory of the People's Federation, and the main laboratory.

Lu Yongchang stared at the holographic image in front of him in a daze and swallowed slightly.

“…Zero, what did you say?”

"The signal in the direction of Proxima Centauri? Are you sure?!"

Lu Yongchang felt a little confused.

how so?!

In the previous life, there was no signal from Proxima Centauri!

Is the butterfly effect really that powerful?!

"Yes." said Jie Yong very affirmatively, "The signal seems a bit complicated because of the transmission distance, but I can be sure that this is the message transmitted by intelligent creatures!"

Hearing this, Lu Yongchang's face changed slightly.

He understood!

In the previous life, perhaps Proxima Centauri also sent a signal!

It’s just that the signal is too complicated, and humans just discovered that the sun was mutated and the world was in turmoil. No one noticed that signal!

Lu Yongchang looked at the regular fluctuating signal frequency band in front of him with a gloomy expression.ъìqυgΕtv.℃ǒΜ

"zero!"

"Notify the Chairman of Parliament immediately and hold a meeting of the People's Congress."

"Also, let all the working radio telescopes face Proxima Centauri and pay close attention to their movements!"

...

Interior of the conference room.

The chairman of parliament and a member of parliament sat in their seats with a serious expression, silently looking at Lu Yongchang standing in front of him.

"Yongchang, is the situation of Zero Reporting true?"

Seeing everyone coming, Congressman Lee's eyes showed some worry and asked in a low voice.

Lu Yongchang nodded silently.

Then, he turned around and waved to the holographic projector beside him.

A holographic image appeared in front of him.

"This is a signal received by the Sky Eye System."

"At present, there may be some complexity." Lu Yongchang said in a deep voice, "Zero, process the data."

The moment the command is issued, the complicated signal bands instantly become regular.

Looking at the waves that were rising and falling in front of me, the conference room was silent.

Albert, who was sitting beside him, reached out and grabbed his blonde hair, and said in fluent Chinese: "What does this signal contain?"

"It can't be just a string of ordinary electromagnetic wave signals, right?"

Lu Yongchang glanced at Albert and said quietly: "This is exactly what I want to say."

"At present, the content of this signal is very simple."

As Lu Yongchang finished speaking, a string of numbers appeared in front of everyone.

2357111317192323571113171923

"This is a signal change pattern determined by zero."

"Prime number sequence?" The emperor frowned slightly and asked in a low voice.

Lu Yongchang raised his eyebrows lightly and looked at the Emperor in surprise.

"Yes, it's a prime number sequence."

"From 2 to 23, this sequence has been looped 30 times so far, and each cycle takes 1 minute."

"I don't understand." Albert grabbed his golden hair hard, his eyes full of doubt. "Why does Proxima Centauri put such a boring string of data?"

Like Albert, many congressmen also had some doubts in their eyes.

"I think this should be screening the audience." Lu Yongchang replied softly, "or rather, choosing the audience."

"How should two civilizations communicate, this is a very romantic question."

"Two civilizations of different cultures, different technologies, and different species, relying solely on language or patterns, will definitely not be able to communicate normally." Lu Yongchang took a deep breath, "In the entire visible universe, at least, within our cognitive system, mathematics and physical laws are the only tools."

"Prime number sequences, coupled with electromagnetic wave communication, can at least filter out those civilizations that have not developed modern technology."

"Considering what was discovered on the moon, I can be sure that the series of signals from Proxima Centauri must have come to us."

As soon as the words were finished, countless questions sounded.

"Moon? What was found on the moon?"

"Look at what I do? The United States did not find anything messy when it landed on the moon before!"

“…”

Congressman Lee frowned and coughed softly.

"Ahem!"

"Zero, unlock that file."

The next moment, small holographic images appeared in front of every member of parliament.

"Everyone, I'll explain it." Congressman Li picked up the microphone and said in a deep voice, "This is the trace of the first time Xia Kingdom landed on the moon."

"According to our calculations, this burning trace should come from the more advanced Hall thruster, and the whereabouts of this UFO are Proxima Centauri."

After a brief silence, a scream of exclamation rang out in the conference room!

"Damn..." This is the national treasure that Councillor Albert shouted.

"God!!" This was the amazement from the Emperor.

Although I knew the occasion was wrong, Lu Yongchang's eyes still showed a little smile when he looked at the scene in front of him.

It seems that the Chairman of the Council on the Cultural Unification Plan is well implemented.

"What do they want to do!" Albert was shocked and angry.

This reaction is also normal.

No matter who it is, he will react like this when he knows that there is a civilization secretly observing humans.

"Professor, the second message is coming."

Just when Lu Yongchang wanted to answer, Zero's virtual image suddenly appeared above the conference table.

"What's the content?!" Lu Yongchang asked in a deep voice.

The originally noisy conference room also quieted in an instant!

"The information is a bit too much." Zero's virtual image frowned in anthropomorphic way, "However, they attached a dictionary to it."

"Dictionary?" Lu Yongchang asked in confusion.

"Yes, in my opinion, this is the dictionary." Zero replied quickly.

At the same time, the holographic projection screen quietly changed.

On the left side of the holographic projection are filled with strange texts.

On the right are some simple patterns.

"So that's it..." Lu Yongchang's eyes showed a little obsession.

Everyone looked at the chief scientist of the League of People's Federation who was deeply trapped in it in confusion.

"This..." Albert and the Emperor looked at each other and shrugged helplessly.

Even Councillor Lee's face was full of confusion and doubts.

"Yongchang?" Finally, Congressman Lee couldn't help but ask, "What does this mean?"

Hearing the call of Councillor Li, Lv Yongchang came to his senses.

He looked at the "dictionary" in front of him with unsatisfactory feelings, and explained after smacking his lips.

"Look."

“This part of the pattern on the right.”

"This is a cesium-133 atom."

"And this pattern represents the process of transition between the two superfine energy levels of the cesium-133 atoms in its ground state."

"As for what it means..."

"1 second is the time for the 9192631770 cycles of radiation that cesium-133 atoms transition between the two superfine energy levels of their ground state. Therefore, the text on the left corresponding to it is the meaning of one second and cesium-133 atoms."

"Similarly, 1 meter is the distance traveled in 1/299792458 seconds in a light vacuum."
Chapter completed!