It's reasonable for me to have a two-way foil for a second-level civilization, right?

"If they collide...the consequences will be terrible!"

"Can't hit!" Lu Yongchang raised his eyebrows, interrupting Fang Xu's words, "I said it can't hit, it can't hit!"

"That's the power of technology!"

"And...it's not on the [Earth], what are you nervous about?" Lu Yongchang glanced at Fang Xu with a strange expression, "You boy, have you stayed up all night and stayed up all this time?"

The corner of Fang Xu's mouth twitched slightly, and the nervous expression on his face quickly dissipated: "Cough...Professor, all the tests have met the standards, and the experiment can be started at any time."

Without the slightest hesitation, Lu Yongchang directly opened his mouth and gave the order.

"Turn on!"

……

The moment the voice fell, the huge energy created by the annihilation of antimatter began to gather in the mobile experimental ship in the open universe.

Inside the experimental ship, there are two miniature black holes that operate stably.

This is an important part of the tachyon communication device.

Due to the limitations of the current technical level, the whole set of equipment is particularly bloated, but it is not a big deal for a medium-to-large starship with a large body.

It's just... before the miniaturization technology of tachyon communication has not been broken through, it may be difficult for small starships to carry such devices.

In this regard, Lu Yongchang proposed a simple solution - once the fleet needs to enter a secondary curvature state of more than 10c, put small starships into medium and large starships.

Closer to home.

With the gradual accumulation of huge energy, the experiment officially started.

Under Zero's precise control, the powerful gravitational field pulls the two miniature black holes to "slide" towards the central vacuum experiment cabin.

The distance between the black holes is getting closer and closer.

Under the control of the strong gravitational field outside, an extremely subtle distance is maintained between the two miniature black holes.

They start orbiting each other like stable binary star systems.

Distorted and regular gravitational fields and gravitational waves emanate from it.

It's like a guqin playing a melody full of charm.

The next moment, hundreds of high-energy lasers were emitted from the bulkhead of the spherical experimental cabin.

These high-energy lasers are aimed straight at the centers of mass of the two black holes.

(Center of mass: the center of mass is referred to as the center of mass, which refers to an imaginary point on the material system where the mass is considered to be concentrated.)

[Earth number] inside.

"The mobile experimental ship has completed preparations."

As Lu Yongchang's deputy, Fang Xu said in a deep voice after carefully checking the data given by some zeros.

"Start the curvature engine."

Lu Yongchang raised his head slightly, stared at the mobile experimental ship in the holographic projection, and said softly.

If you don't explain it in advance, who would have imagined that there are actually two miniature black holes in such an unattractive starship!

Fang Xu took a deep breath, calmed down the excitement and anxiety in his heart, and then gave the order in a deep voice.

"Start the curvature engine!"

"Based on the first set of navigation plan, start curvature navigation!"

The whole sailing plan is simple.

After the mobile experimental ship enters the state of curvature, it will continue to accelerate until it exceeds 10c, that is, it enters the state of secondary curvature.

During this process, the tachyon communication device and the quantum communication device will continuously transmit information to 【Earth】.

Chapter 681 I'm Out of the Cabin, Feeling Good!

Ling meticulously carried out the orders from Lu Yongchang and Fang Xu.

With the activation of the curvature engine, the curvature bubble was successfully generated, and the mobile experimental ship stagnant in the empty universe instantly disappeared in the picture returned by the probe.

They successfully entered the state of curvature, and "disappeared" in the universe at the speed of light.

The real experiment starts at this moment.

The [Earth] laboratory quickly became busy.

……

"The current speed of the experimental ship is 1.1c!"

"The state of quantum communication is normal, and the tachyon communication device is operating normally!"

"..."

A slightly noisy report sounded continuously in the laboratory.

Lu Yongchang slowly stood up from his seat, his eyes became sharper: "Start compiling the taezi information!"

After the voice fell, in the experimental ship, under the control of the gravitational field, the rotation speed of the two miniature black holes changed somewhat.

At the same time, the strong gravitational field created by the miniature black hole has also undergone some changes.

"The Tachyon information has been successfully compiled!" An academician shouted loudly, "The information has been successfully sent!"

……

Different from sending out tachyon information, the way human civilization receives tachyon information is relatively simple at present—by observing the gamma ray fluctuations released when the tachyon energy is dissipated, the frequency of the tachyon itself can be deduced inversely, so as to analyze the tachyon information contained in it. Information.

After all, unlike tachyons, the gamma rays released by them are things that can be observed by the slow universe.

Although tachyons are distributed throughout the universe, the energy carried by these tachyons has been exhausted for a long time, and their own energy is almost zero.

Therefore, in the observation instrument, the gamma ray fluctuations released by tachyons are particularly conspicuous!

It's as dazzling as a light bulb in a dark room!

But this observation method also leads to another drawback.

Communication distance is limited.

The current range of tachyon communication in human civilization is exactly the range where tachyons dissipate their own energy below the accuracy of observation.

According to estimates, it is about 1000 light-years away.

On the scale of the universe, this distance is nothing.

But for today's human civilization, this is vast enough!

The method of increasing the tachyon communication distance is also very simple, and there are probably two directions.

First, slow down the initial speed of the tachyon as much as possible, that is, let it carry enough energy to support a longer dissipation time.

Second, increase the observation accuracy of the fleet itself.

Lu Yongchang is more inclined to the second option.

The speed of tachyons increases continuously with the degree of energy dissipation.

This means that tachyons are traveling faster and faster over time!

In other words, as long as the observation accuracy is high enough, the communication range of tachyon communication is the entire universe!

……

Almost at the same time that the academician spoke, Zero's electronic synthesis sound also sounded from the speaker.

"Successfully observed vacuum gamma-ray fluctuations!"

"Information recognition: AAAAA, deciphering information..."

"The information comparison is successful, and it is confirmed that it is a tachyon message sent by us."

After a short wait, warm cheers broke out in the laboratory.

"Don't rush to celebrate, it's not considered a complete success!" Lu Yongchang interrupted the cheers of the academicians, "Continue to increase the speed of the starship to above 10c!"

As the speed of the starship in the holographic projection continued to increase, the atmosphere in the laboratory gradually calmed down.

9.8c, 9.9c, 10c...

10.1c!

"Quantum communication has been interrupted."

An emotionless electronic synthesizer sounded, echoing in the laboratory.

There was no surprise on Lu Yongchang's face.

This situation had already been expected by him, and he had already made corresponding arrangements.

When the experimental ship enters the secondary curvature state, the experiment will also be maintained by the shipboard computer.

After all, humans have only built one tachyon communication device at present, and after the quantum communication fails, the communication becomes one-way.

Time passed by every minute and every second, and the atmosphere in the laboratory gradually became anxious.

"Successfully received tachyon information!"

The electronically synthesized voice once again broke the extremely anxious atmosphere: "Information content: the current sailing speed is 20c, I have left the cabin, and I feel good!"

Looking at the line of text in the holographic projection, Lu Yongchang was stunned: "...???"

This scene, even in the entire history of mankind, is quite explosive.

"Who put this tm in?"

"Ahem...Professor, it's me." He Bilin who was not far away smiled and raised his right hand, "I was thinking of enlivening the atmosphere..."

Lu Yongchang took a deep breath and calmed down his inner desire to complain: "It was very good, and it is not allowed to be released in the future."

In any case, the success of the tachyon communication experiment means that the strength of the fleet of human civilization has risen to a huge level.

Therefore, when Lu Yongchang complained, he still had a strong smile on his face.

In the laboratory, the sound of celebration sounded again.

……

The earth calendar is 3625 years.

After experiencing several interruptions of quantum long-distance communication, Lu Yongchang was deeply aware of a problem.

The miniaturization project of fast son communication device must be put on the agenda as soon as possible!

As an important part of the fleet, small starships and probes must not become the shortcoming of the fleet.

Under his leadership, the Academy of Sciences spent several years successfully breaking through this technical barrier.

So far, every starship and probe that has reserved space for tachyon communication modules has been successfully equipped with tachyon communication devices.

The speed at which human civilization expands its territory has also instantly increased to a higher level.

As of now, human civilization has mastered three star systems around the Kepler 452 star system.

【Star Devourer】Under the control of Zero, it is constantly mining the iron planets in these three star systems, providing a large amount of essential mineral resources for the human fleet.

To Lu Yongchang's regret, there are no habitable planets in these three star systems, and naturally there are no alien civilizations.

"Professor, the Sociology Branch..."

Fang Xu knocked on the door of Lu Yongchang's office with a wry smile, and reported softly: "They asked me about that again."

"No!" Hearing Fang Xu's words, Lu Yongchang stopped his work angrily, "Tell them that no traces of low-level civilizations have been found!"

"Don't talk about civilization, the fleet hasn't even seen a bug!"

"Oh, yes!" Lu Yongchang seemed to have remembered something, "Well, there are some single-celled organisms found on a planet. You can ask the sociology branch, are they interested in that thing?"

Fang Xu sneered, but didn't answer.

"It's weird..." Lu Yongchang scratched his head vigorously, his eyes showing a bit of confusion.

"When we first came out of the earth, we could encounter alien civilizations everywhere, and we couldn't hide them."

"Now I'm going to look for them, and they're well hidden!"

"Tsk! It's really memorizing!"

Lu Yongchang looked at the brand new desk in front of him with a depressed face, and complained in a low voice.