The main purpose of the tachyon detector is to measure the curvature of space through guò tachyons.

It is important to know that any spaceship equipped with a curvature engine, after flying through an airspace, will not immediately return to a straight space, but will still be like a giant ship sailing in the sea, leaving a long trail behind it, and this curvature often takes years to slowly recover under the recovery ability of the universe itself.

In general, they do not react with any matter, but when the tachyon passes through the curvature space, its own velocity will also change, so it is a pity that the tachyon detector detects the speed of the tachyon in different directions to determine whether there are traces of other spacecraft in the vicinity.

However, the accuracy of this kind of detection is not high, and it can only provide passive long-range warning of the area around the spacecraft within 5 light years, and it cannot accurately control the fire of the weapon.

However, under Chen Xin's reminder, scientists in the Tianqin civilization tried to combine quantum entanglement and tachyon detection to create an active tachyon radar.

The so-called active tachyon radar refers to the spacecraft itself carrying a tachyon generator, and then launching one of the tachyns when the two tachyns are entangled in the sound of quantum entanglement.

As long as the state of motion of the tachyon launched changes, the state of the tachyon that is quantically entangled with it in the spacecraft will also change accordingly.

This tachyon radar not only increases the detection range of the Lyra civilization warship to ten light-years, but also can launch a surprise attack on the enemy within two light-years with missiles equipped with curvature engines.

In the past twenty-five years, Chen Xin has pointed out thousands of scientific and technological research and development directions for the Tianqin civilization, which involve almost all aspects of the sixth-level civilization, as long as the Tianqin civilization completes the study of dimensions, it can easily be promoted to a sixth-level primary civilization.

Because of this. The Tianqin civilization is even more dedicated to Chen Xin.

While Chen Xin lived an emperor-like life in Phoenix Star, he did not sever his connection with the New Earth.

Twenty-five years is almost a generation for humanity.

Over the years, humanity has been thoroughly integrated into the life of New Earth.

In particular, the construction of the second world is beyond Chen Xin's imagination, and now mankind has been promoted to the second peak civilization in the second world, as long as the research on the transformation relationship between the Higgs boson and gravity is completed. can be successfully promoted to a third-level civilization.

Chen Xin estimated that this time would not be too long, and the promotion could be completed before the humans arrived in the Flame Galaxy.

In addition to collecting all kinds of information about the Tianqin civilization over the years, the rest of the time is to eat a lot.

At Chen Xin's request, the Tianqin civilization collected a large number of fourth-level materials, and finally all of them got into the belly of the steel hammer, and it was successfully promoted to the fourth-level civilization a few years ago.

Although it has just entered the fourth level, but the steel hammer has really launched a threat, I am afraid that those old fourth-level peak civilizations are not necessarily its opponents.

However, it will be more difficult to advance next, and the level 5 civilization will involve much more new materials than the level 4 civilization. Even the Lyra civilization itself had a hard time collecting all of these materials.

Chen Xin estimates that every one or two hundred years, the steel hammer will not want to enter the fifth level.

But the steel hammer is not in a hurry, for it, this is a heavenly day.

There is eating, drinking, and playing, and there is no need to worry about being discovered by others, but it is much stronger than in its previous life.

……

In June of the 25th year of the Milky Way calendar, Chen Xin leisurely enjoyed the scenery on a manor terrace built on the top of a hill in Phoenix Star.

Twenty-five years have not left much of a mark on him, the only change is that his gaze is deeper than before. It's even more elusive.

On the horizon, a small anti-gravity speeding car swept towards Chen Xin's manor. In just a second or two, he had already come to Chen Xin.

The door of the flying car opened, and a pair of slender jade legs came out of the spaceship, followed by a delicate figure and a pretty face that was pleasantly disgusting.

"Senpai, I'm back!"

Leah got out of the car with a grin, and spent decades together. The relationship between her and Chen Xin has also changed a lot.

Although she still calls Chen Xin a senior, her tone has long lost the awe she had at the beginning, but has a little more squeamishness of a little woman.

Chen Xin smiled, beckoned to Leah, and picked up an upside-down cup. Poured her a cup of tea.

Leah happily sat down beside Chen Xin, picked up the teacup and took a sip lightly, then frowned, stuck out her tongue and said, "It's so hot!"

Chen Xindao: "How is it? Is there any progress in this negotiation with the Thorn Civilization and the Faeron Civilization?"

Over the years, the carbon-based alliance has put more and more pressure on the galaxy's humanoid civilization, and the number of fleets on the border between the Thorn Civilization and the Raccoon Civilization has also increased.

With the further improvement of its own strength, the Tianqin civilization has begun to integrate the power of the Galactic Pan-Human Alliance, such as integrating the other two fifth-level civilizations of the human race, the Feren civilization and the Thorn Civilization army, into the Galactic Pan-Human Alliance, and the establishment of a joint fleet and a joint command headquarters among the three parties.

Leah smiled and said: "With me out of the horse, can we still negotiate? We have already decided that in the next hundred years, the fleets of the Faeron civilization and the thorn civilization will be completely integrated into the Galactic Pan-Human Alliance, and the three parties will be connected into one in the future, so that our military, economic and scientific and technological forces can be highly integrated!"

Chen Xin nodded, a hint of emotion flashed in his eyes and said, "That's good." By the way, Leah, how long have I been in the Phoenix event?"

Leah was slightly stunned and said, "Twenty-four years and nine months, what's wrong, senior?"

Chen Xin said: "It's been so long, I think it's time for me to leave!"

"What, you're leaving?"

The smile on Leah's face vanished in an instant, leaving only a pale.

Chen Xin said: "Yes, I have already taught you everything I can teach you, before entering the sixth-level civilization, I don't have much to give you guidance, so it's time to leave." ”

A hint of mist appeared in Leah's eyes and said, "Senior, you're gone, so what should I do?"

She has often been with Chen Xin over the years, although the two sides have not had a further intimate relationship, but Leah's feelings for Chen Xin have already undergone a very subtle change.

Chen Xin smiled and said, "Well, of course you will continue to be your princess." After all, you have your responsibilities, and I have my mission!" (To be continued......)