The last human in the universe

Chapter 259 Level [-] Civilization
The human civilization at this moment, compared to the time when there were only a few spaceships that were not built by oneself, was miserable and miserable. It was naturally very different when they escaped from the Jagged Nebula and came to the H1 galaxy.

In addition to the scale, the other most obvious point is reflected in the speed of sailing.

Even if the fleet is so large and bloated, thanks to the super engines and propellers that are almost at the peak of the third-level civilization, as well as the more advanced and reasonable spaceship layout and overall structure, the acceleration of the fleet can still reach 0.2 meters per square second , Compared with the original, it has almost increased by more than ten times.

The highest economic flight speed has also reached an unprecedented 6 kilometers per second, as high as 20% of the speed of light.

——This is not to say that a higher speed cannot be achieved. In fact, after reaching this speed and continuing to accelerate, the speed can still be increased.But in that case, the highest economy cannot be achieved.

Economy can be ignored for short-distance voyages, but for ultra-long-distance voyages such as interstellar voyages, economy must be considered.Because there may be only one ten-thousandth gap between each indicator, it means that hundreds of thousands of tons of materials may be wasted or not.

There are many indicators that determine the highest economic efficiency, and the calculation is extremely complicated.Engine power, efficiency, technological level, etc. all determine its specific figures to some extent.But Zhao Changxing can guarantee that at the stage of the third-level civilization, the civilization with the highest economic speed of interstellar voyages reaching 20% ​​of the speed of light cannot be said to be the only one for human beings, but it will definitely not be much.

This is another significant sign that human civilization has entered the pinnacle of the third-level civilization, in addition to the "nano-cloud" weapon.

At this moment, the huge migratory fleet has ended the hustle and bustle of the initial voyage, all kinds of preparations have been completed, and a large number of personnel related to the initial preparations have also entered hibernation in turn, so the fleet gradually fell into silence.

At this moment, only about 50 billion people are awake and responsible for maintaining the normal operation of such a huge fleet.

Zhao Changxing remained sober as always, once again taking this voyage as a precious opportunity to improve himself and absorb more knowledge.

Time passed quietly, and at this moment, outside the window, in the vast starry sky that was projected in front of Zhao Changxing, the originally vibrant star had degenerated into a bright spot.

A journey is over, and a new one is about to begin.In front of Zhao Changxing, in front of human civilization, there is still a long journey of up to 7.2 light years, a long time of up to a hundred years.

One day, a new daily document was placed in front of Zhao Changxing again.

"In the past day, among more than 6300 million spaceships, there were more than 300 failures of Class A or above. During the disposal process, a total of more than 1000 people were sacrificed and more than [-] people were injured?"

Zhao Changxing nodded slowly, not only was there no sadness in his heart, but a little relief.

Compared with the past period of time, this number is relatively small.

It should be that the safety training work carried out before has received results.Zhao Changxing thought so in his heart.

So he made a comment on this document.

"Safety training must continue, and every fault handling personnel must pass the assessment before taking up the post. Every engineer is a valuable asset of civilization, and no meaningless sacrifice is allowed."

After handling today's daily work casually, Zhao Changxing started his never-ending study again.

At some point, a piercing alarm sounded in Zhao Changxing's ears, waking him up.

Zhao Changxing's expression immediately became serious.

To be able to warn Zhao Changxing directly, no matter what state Zhao Changxing is in or what time it is, without a prior report, is undoubtedly the highest level of warning.

Something big must have happened.

Zhao Changxing suddenly stood up and came to the meeting room.Several senior government officials who were responsible for one aspect also hurried in at this time.

"Leader, the latest discovery."

A senior government official in charge of civilization and security hastily reported: "Just half an hour ago, the remote observation team responsible for airline safety and star field observations discovered an unusual luminous body at the following coordinates. Further observations showed that the luminous body Relative to our sailing speed, it is as high as 79% of the speed of light! Moreover, their heading is almost straight at us!"

Zhao Changxing frowned immediately, took the document and observed it carefully.

At this moment, another new piece of information entered the security officer's personal computer.He glanced at it, and immediately reported again: "Leader, the latest observation shows that the luminous body is not a single one, but a collection of many light sources."

In the projection, one after another light spots gathered together, densely packed, innumerable.With just one glance, you can see at least hundreds of thousands of them, and the mutual occlusion between those light spots is not counted.

"This is like a spaceship one by one..."

At least hundreds of thousands of spaceships!Compared with the human fleet, the speed is as high as 79% of the speed of light!

At this moment, the speed of the human fleet is 20% of the speed of light.The two fleets were heading towards each other. Subtracting the speed of the human fleet, it seemed that the speed of that fleet was only 59% of the speed of light, or about 17.7 kilometers per second.

But at this moment, the speed of both sides is too high. Under the speed of relativity, the superposition calculation of speed cannot be done by simple addition and subtraction.After incorporating the relativity formula into calculations, Zhao Changxing calculated in a very simple manner that the real speed of the opponent's fleet relative to the cosmic microwave background radiation is actually about 70% of the speed of light.

However, even the fleet of human civilization, already at the pinnacle of the third-level civilization, can only achieve the maximum economic speed of the fleet at 20% of the speed of light. At this moment, the sailing speed of this fleet is as high as 70% of the speed of light?

what does this mean?
That must be a fleet of level [-] civilization!

A level [-] civilization that has fully mastered the "vacuum model" and has a mature and large-scale application-free propulsion technology!

At this moment, all observational data clearly point to this conclusion.

"They're coming at us..."

The tone of the security officer was a bit bitter.

In the vastness of space and the boundless universe, is it possible that the routes of the two fleets coincidentally overlap?
Well, it is indeed possible.But this probability is too low, too low, right?How could it happen to be encountered by a human fleet?

So, if not a coincidence, then what?
There is only one possibility.That is, that fleet is aimed at humans.

"At this moment, the distance between us is about one light month. In about a month, our two fleets will meet..."

Zhao Changxing's brows furrowed deeper and deeper.It took a long time before it slowly unfurled.

"Don't be nervous. It should just be a coincidence. They shouldn't be coming at us. Otherwise, they should slow down."

The security officer's look was still grim.

"Leader, in any case, I suggest that you enter a state of full alert, wake up all fighters, and the Space Force fleet begins full alert. At the same time, adjust the course to avoid them as much as possible."

"That's what it should be."

Zhao Changxing nodded.

For his own judgment that "it's just a coincidence", Zhao Changxing actually didn't have any confidence.He was just trying to reassure people.

If this is an enemy, then this must be the most powerful enemy that human civilization has encountered since its birth.Its strength ratio is even greater than when it faced the G1 galaxy coalition forces at the level of a second-level civilization.

At the beginning, our side could rely on the elite personnel to defeat the enemy with guerrilla warfare tactics, but this time, it was absolutely impossible to do so.

It is also impossible to rely on the advantage of the home field and the early planning to win the victory like facing the storm civilization in the H1 galaxy.

This is the vast space, not the home of human civilization.The enemy came too fast, and there was no time to do any early planning.

No matter what the future brings, human civilization can only suffer.

Zhao Changxing looked calm, without any panic.

With the issuance of the emergency order, hundreds of millions of space fighters all woke up and entered their own combat spaceships.More engineers and scientists also woke up from hibernation, started space factories one after another, and started the production of war preparation materials.

The entire fleet even started to advance temporarily, and temporarily deviated from the current route.At the same time, the overall layout of the fleet has been adjusted, and spaceships such as logistics, civil, passenger transport, scientific research, and industry have been moved to the core of the fleet, while the combat spaceships on the outer layer are closely guarded.

Numerous automated military installations have also been activated and launched into space.

All the civilization leaders gathered in the core meeting room, and there were people on duty 24 hours a day, closely watching any movement of the highly suspected Level [-] civilization fleet.

Even if they know that the enemy is invincible and invincible, but if that moment really comes, no one will doubt the determination of the human fleet to show their swords.

Even if it is death, it must die on the battlefield.Even if it is death, you must try your best to bite off a piece of the enemy's flesh.

In this tense atmosphere, like a large army pressing down on the territory, the latest movement of that fleet was once again placed in front of the leaders of civilization.

"We have observed that the course of the opponent's fleet has been slightly adjusted 5 minutes ago. The adjusted course will pass our side at a distance of about 50 billion kilometers."

call……

Under this news, the previous depression and tension melted instantly like the remaining snow under the scorching sun.

A relaxed look finally appeared in front of people.

"It turned out to be a coincidence..."

But the good mood didn't last long.Just less than a day later, another new piece of news arrived, making people's hearts lifted again.

"We observed that a spaceship of the opposing fleet broke away from the main force and was heading towards our fleet."

(End of this chapter)