Qin Guan is a happy maintenance worker again, and he is also the maintenance supervisor of the Alliance Military Academy, which is even better than on the interstellar train, the work is easy and the danger factor is low, and there is no need to endure years of loneliness. The fly in the ointment is that the salary is too low, you must know that there is a subsidy for space work, especially the long-distance trunk interstellar train, that guy, working on it is like going to another world.

The most exciting thing is that you can see young girl students every day, Qin Guan admits that this idea is very vulgar and obscene, but who made him fall out of love, not to mention that he didn't advertise himself as noble. It's a simple desire to find a woman to have a baby, well, or find it and make more money, and then ...... No, I have a task on my body, not to mention that I have no money, no status, and no women.

In the state of falling out of love, it is more reliable to implement your promise first.

The relic train is here again, he has come to observe it several times before, and now it is here again, of course, countless people from the Human Alliance have come to observe this locomotive, this huge mystery that is majestic in both space and time, today, Qin Guan is standing here again.

As before, he was shocked every time he saw this behemoth, even though he had witnessed the spectacle of an interstellar train passing through a belt of rubble, and had seen hundreds of interstellar trains stop at the space station. The shock of space is big, incomparably huge, the Alliance Military Academy is located on the outskirts of the capital of the Alliance, because this one body is basically worth half a small city!

It is impossible for human beings today to build such a huge spacecraft, not to mention the factors of structure and dynamics and intelligent systems, materials alone cannot do it. A palm-sized cardboard box you can make sturdy for gifts, a metal box you can make into a huge shipping container, but what about bigger? Bigger is not enough to support the structure, and a huge cardboard box like a house will collapse and thicken? Any thickening of the material is not unlimited, otherwise it will lose its practical significance.

Therefore, the relict train represents an industrial base far beyond modern humans.

This is the mystery of time brought by the relic train, what were humans doing 1,500 years ago?

History is like the dust of the light in the storage room, although it is very slow, but you know that it is slowly falling, accumulating thicker and thicker, indifferent to all sides, sealing everything in dust, including such cosmic miracles.

It was the first time for Qin Guan to look at the relic train from such an angle, his mouth didn't close for half a minute, he used to be in the audience area, and now he is the maintenance supervisor here and can take a special passage. When you see this guy up close, you will feel your blood burn instantly, and you will question whether this is real, such a small human can create such a magnificent and powerful cosmic wonder, if there is a whole column, it can become a large celestial body!

Qin Guan made a mistake, of course, he is not to blame, he can only say that his tenure is too short and he is not familiar with the business.

Just imagine, can a person who does maintenance get close to the miracle of ancient humans?

But he is in the past, he used his identity card to swipe open a door, if in the past he can't enter, do you really think that he is a maintenance supervisor is very big, he can only maintain some of the academy's training equipment, and many of them do not need maintenance, as soon as it is broken, call the manufacturer directly to replace.

But why did he go in again?

Because the last few doors were open, Qin Guan impatiently walked over to touch the crystallization of this temple of science, but at the beginning of the alliance's civilization, he bumped into an old maintenance worker who came out in a hurry.

This old maintenance worker is very old, even if he has not carried out any cultivation, he should be more than eighty, of course Qin Guan does not know who he is, the military academy is the leading academy in the entire alliance, and it is impossible for the maintenance worker to know all in the short term. However, Qin Guan is a smart person, everything has its traces, when you learn to analyze with thinking, many answers are easily solved. …,

Therefore, as soon as Qin Guan saw the other party's shabby uniform, he determined the identity of the other party's low-level maintenance worker.

"Hey, this ...... Grandpa? Qin Guan stopped the old man.

The old man was originally windy with his feet, but suddenly paused, raised his head and stared at Qin Guan: "You are ......"

"I'm the new supervisor, you take me in for a spin." Qin Guan ordered.

It is rare for a person who looks so old to have a lower level than himself, Qin Guan is much more comfortable, his attitude is quite friendly, and his tone is sincere, not at all like an order from a superior to a subordinate. In Qin Guan's opinion, this is already very face-saving, on the interstellar train, he was bullied by the old qualified old men and depressed, and he used his seniority to oppress people all day long, and now he can finally raise his head a little, and he is still lower than his own level when he meets an old maintenance worker.

But the old maintenance man looked stunned, and was stunned for a moment.

"You're going to ......"

"Routine checks, which district are you?"

Qin Guan couldn't help but interrupt: "I'm the new maintenance supervisor, you follow me to see the situation." ”

"But ......"

Qin Guan had already entered, and the old maintenance worker had to go in with him, only to see Qin Guan walking briskly, patting the shell of the relic train with his hand, and said with a sigh: "This looks like a complex molecular structure, and it is mixed with metal atoms, God knows how this is produced, it is much stronger than simple metal." ”

The old maintenance worker wanted to say something, but he suddenly shut up and only followed behind, frowning and observing Qin Guan.

"By the way, my name is Qin Guan, how many years have you been working here?" Qin Guan turned his head and asked.

"Call me Lao Du, in fact, how many years...... I don't remember exactly. The old maintenance worker looked at Qin Guan meaningfully.

Qin Guan didn't find out by himself, he had now entered the absolute forbidden area of the entire Human Alliance, but unfortunately his eyes had been completely attracted by the relic train, as if he had seen the girl he was haunted by, and his hand trembled a little: "Do you know the way, almost all the literature says that this has lost the engine, and a few heretical theories also argue that this is not the front of the car, but I have always thought that she has a new power mode." ”

Lao Du followed behind thoughtfully: "If the engine is still there, then where is the nozzle and how to generate forward force?" ”

Qin Guan raised his head again and looked around at the front of the car that was lying horizontally like a high-rise building, spread out his two palms, and said excitedly as if he had sung the strongest note: "Don't you see, this is a front car with a complete surface, not only the hardness of the shell is very large, but there are no more traces of damage, imagine if this is possible?" Crash directly into the surface of the planet, no matter how hard the material is, it should be damaged! But...... It's actually possible to recover! ”

"You mean ......"

"That's right, the dragons have the ability to absorb inorganic minerals, evolve and repair their bodies!"

Lao Du was silent, this is actually a kind of inference, or there are other possibilities, such as falling with a protective shell, the protective shell has been corroded for more than a thousand years, this can be said, many substances have good protection capabilities, and it does not take a year for weathering and degradation. But the hint brought by the dragon people in this regard, why can't they build their own machine to repair and evolve?

"Young man, where did you graduate?" Lao Du suddenly asked.

"An ordinary university, far from the capital, in the other hemisphere of the Alliance." Qin Guan said as he spoke, without even looking at Lao Du, "It's just that my foundation is more solid than others, I spent ten years on basic calculations, close to half of my current life, it must be yes, I know that there is such an orbit in the Dao, there is such an orbit in the vast space, so that the interstellar train runs in a special way, and the current way of operation is too naïve." ”

Lao Du squinted his eyes, Qin Guan was still knocking on the shell of the front of the ruins and continued: "Look, it's like an interstellar asteroid with a hard eye, a big stone, the power must be in it, you just asked how to generate forward momentum?" There are so many of these principles, does the moon need to eject anything as it orbits the planet? Do all stars need directional jets to rotate in the Tianhe system? No, they don't, we jump on the ground and then hit the ground, do we need to spray anything? ”…,

"You mean gravity ......" Lao Du has not seen this kind of theory, the key is that there is no corresponding theoretical basis, "Young man, it seems that you like interstellar trains and interstellar travel?" ”

Qin Guan turned his head, looked at Lao Du and said, "Like it?" Why should I like this? I'm not even twenty years old in the interstellar travel, every rivet, every interface, every skin, every crevice of the interstellar train, I know everything well, I guess you have never seen more unlucky than me, life is like a seesaw, one head higher will always be one head lower, there is no way to take care of it, what can I do? ”

Lao Du automatically condensed Qin Guan's words: "How many years have you worked on the interstellar train? ”

Qin Guan smiled and said: "I can't see it, no one else at my age has graduated from the military academy, I am alone in space, drilling in the maintenance channel all day long, it is rare to meet a new face, I want to reset the engine model, I want to dock two carriages with interfaces spanning a hundred years, I have to repair the air conditioning circuit, the external welding of broken pipes and protective shells, and even the toilet seat is broken, I have touched every inch of the interstellar train." ”

Lao Du's expression became serious, to reach this level, you are driving antiques, right?

However, the young man didn't seem to know him, and he didn't seem to be lying, and it seemed that he had really suffered resentment for a few years.

"You take this." Lao Du handed over a small chip.

"What is this?" Qin Guan looked at it suspiciously, many chips and identification cards looked like this, who knew what it was.

Lao Du smiled and said: "This is a pass, I gave it to you, you can come here at any time in the future, but it is best not to let too many people see it, because there are clean standards here, you can't enter many people frequently or at one time, and you can come to rest for others, after all, there are not many passes, and I have been here for more than sixty years." ”

Qin Guan looked at the old man and was stunned.

No one thought that at that time, even Lao Du and Qin Guan themselves did not expect that they had begun to influence the future of mankind.