Xiao Yu fell into deep worry.

Basically, the speculation that "the extinction of the rest of the civilizations will lead to an increase in the luck of its own civilization" has been confirmed, but at present, Xiao Yu still does not know that the civilization that detonated the earth will let him go, and that Weishenme wants to force himself to leave the solar system immediately after obtaining the ability of interstellar navigation.

It's a bad feeling. Xiao Yu has always been accustomed to taking everything into his own hands, this is true on Earth, in the solar system, and when he is fighting against the lizardman civilization.

But now, the information he got from the lizardman made Xiao Yu really a little dazed.

Xiao Yu was even wondering if there would be a huge trap waiting for him in Tianyuan Si, but Xiao Yu thought about it for a while, and the fact that Tianyuan Si was set as the destination of the voyage was that he had decided things early on the earth, and it was unlikely that it was the result of some kind of mysterious existence's manipulation, and now there was really no other place to go except Tianyuan Si, so he suppressed this uneasy mind again.

The idea of returning to the solar system was dispelled by Xiao Yu without hesitation. The current speed has reached 900 kilometers per second, if you want to return to the solar system, you must first slow down to zero, and then accelerate in the face of the sun, Xiao Yu can't afford such a huge amount of fuel consumption.

Besides, is it necessary for that unknown being to lay such a huge trap for such a weak civilization for itself?

The combination of various factors made Xiao Yu make up his mind to continue to set off towards Tianyuan Si.

Another area of concern is about the coexistence of civilizations in the universe.

It is conceivable that under the guidance of the principle that "the extinction of the rest of the civilization will lead to the improvement of the luck of its own civilization", the universe will definitely be in an extremely chaotic, cruel, and dark situation. Moreover, the weaker the civilization, the more popular it is. Because weak civilizations are easy to destroy.

"Earthlings are really lucky to have developed so far." Xiao Yu sighed.

"Although I have no intention of destroying the rest of the civilization to gain its own development, I must guard against being attacked by the rest of the civilization. In order to survive, I have to be strong as soon as possible. Xiao Yu thought about it and carefully put away his optimistic thoughts.

"From now on, I must speculate on the rest of the civilizations with the most vicious mind, and I must maintain the highest degree of vigilance against the rest of them. If you detect the slightest bad omen, you will immediately take the first action, and you would rather kill the wrong one than suffer a loss. Xiao Yu really made up his mind at this moment.

On the Barren Star, Xiao Yu has obtained a large amount of material replenishment, so some rudimentary, not very energy-consuming scientific experiments can already be studied. However, because he could not carry out research on basic physical theories, Xiao Yu did not expect much from these primary scientific researches.

Xiao Yu deeply realized a truth, a place with abundant materials and inexhaustible energy is a good place to carry out scientific research, such as in the solar system, in the void of the universe, no matter how against the sky, the speed of scientific and technological progress will be seriously delayed.

For example, the lizardman civilization. With a planet as its home, it has been floating in the void for more than 6,000 years, and it has only developed from the initial mastery of nuclear fusion energy to the point of just mastering primary energy weapons.

Xiao Yu's scientific research direction is mainly focused on perfecting energy weapons and developing nanorobots.

The perfection of energy weapons can bring Xiao Yu powerful combat power, and if the nanorobots are successfully developed, they can bring Xiao Yu strong defensive capabilities. Before the breakthrough in energy shield technology, nanobots were the most realistic means of defense.

Because nanorobots are only at the nanometer level, it is impractical to equip nanorobots with their own energy, and this problem can only be solved by developing wireless energy transmission jishu.

Wireless energy transmission jishu has long been studied on the earth, the earliest can be traced back to the early 20th century Nikola Tesla, it is rumored that Tesla has realized the wireless transmission of electric energy in his villa, but it has not been confirmed.

The principle of wireless transmission of energy is very simple, that is, by constructing an electromagnetic field, and then installing an induction device on the nanorobot, when the induction device and the electromagnetic field resonate, the electrical energy will be transmitted to the nanorobot.

When on Earth, the main obstacle to wireless transmission of energy is the problem of excessive energy loss in the transmission process, but through Xiao Yu's painstaking research, the problem of energy loss has been compressed by Xiao Yu to an acceptable level.

The nanorobots that Xiao Yu initially built were in the thousand-nanometer range, that is, one ten-thousandth of a centimeter. These nanobots are all supplied with energy by wireless energy transmission, and usually operate within countless tiny pipes laid on the inner walls of the ship's hull.

If the ship's hull is damaged, the nanobots will carry the material from the nearest raw material storage point and then use themselves as a glue to repair the gap.

But that means an enormous amount of computing power. Xiao Yu has calculated that a village-level spaceship, in order to meet the requirements of fast enough repair, needs at least billions of nanobots, and more than 1,000 spaceships, and the total number of nanobots required exceeds one trillion. To operate on these trillion nanobots at the same time, the amount of computation required can be imagined.

But fortunately, Xiao Yu has two super photon computers, and most of the work carried out by nanorobots does not require Xiao Yu's direct intervention, just throw it directly to another photon computer, Xiao Yu only needs to make some direction and grasp the overall situation. But even so, in Xiao Yu's prediction, after the trillion nanobots are put into use, the utilization rate of the main computer will increase by five to seven percentage points.

It took Xiao Yu five years to build the first billion nanobots for Shiyan. Xiao Yu made a transformation of a village-level spaceship, laid a large number of tiny pipes on the inner wall of the spaceship's shell, and installed thousands of raw material storage points, after everything was ready, Xiao Yu planned to shiyan to see the capabilities of these nanobots.

This village-level ship left the fleet alone, and then another village-level ship raised its gun and aimed at it.

Xiao Yu gave the order to open the cannon, and immediately, through the electromagnetic coil, the high-speed bullets that accelerated to nearly 10,000 kilometers per second were shot out, and instantly arrived at the shell of the Shiyan spaceship, and there was a fierce collision with it.

Ten seconds later, the Shiyan ship's hull was torn open with a hole in a decimeter diameter. The shooting stopped, and then Xiao Yu saw an amazing scene.

At the metal gap, the special material that makes up the outer shell of the spaceship seems to have life in an instant, and begins to creep and expand, and after ten seconds, the gap is first blocked by a thin layer of special material, and then this layer of material begins to thicken on its own, and after a hundred seconds, the gap disappears completely.

Xiao Yu exhaled softly, and his mind relaxed.

In this 100 seconds, Xiao Yu manipulated more than five million nanobots near the gap to transport specially treated raw materials from six material storage points, and then used himself as a binder to bond the raw materials cut into particles at the gap.

From a macro perspective, it's as if the ship's hull will grow on its own and plug the breach.

A notch with a diameter of one decimeter consumes 670,000 nanobots.

"Nanobots are one-time consumables, which means that a nanobot production workshop must be built within each spaceship, especially in times of war, and nanobots must be produced in a steady stream to replace the ones that are constantly being lost. Moreover, it is also important to note that the total energy consumption of the spacecraft is expected to increase by five percentage points after the nanobot repair system is equipped. ”

"But it was finally built and it was verified. With this jishu, in the interstellar war, the attrition rate of my ship will be greatly reduced. ”

Xiao Yu thought happily and began further research work, such as how to reduce the energy loss rate of wireless energy transmission, such as reducing the energy consumption of nanorobots, improving the flexibility of nanorobots, and so on.

There has also been a breakthrough in the research of the Dragon God Cannon, and the speed of the energy cluster it emits has reached one-third of the speed of light, and the energy has also been increased somewhat.

Time slips away in the midst of busy research. In the blink of an eye, a thousand years have passed.

There are less than six hundred years to go before reaching the Tianyuan Four Galaxy, and there are less than two light-years left in the voyage.

Tianyuan IV has become the first bright star in the sky. She emitted a faint red glow and looked unusually beautiful.

At this time, Xiao Yu received a strange message.

In fact, it was not appropriate to say that it was received, and this message appeared so abruptly in the main control computer and was noticed by Xiao Yu.

This message does not need to be translated, and it automatically becomes a text that Xiao Yu can understand.

"The thirteenth thousand, six hundred dark energy broadcasts, the third star field."

"If you can receive this message, it means that you have at least the rudimentary interstellar ability. The information broadcast below may be crucial to you, so be sure to analyze it carefully. ”

"The Sweepers have stepped up their efforts to clean up the Third Star Domain, and at the same time, the Third Star Domain has appeared for the first time. Your situation may be dangerous. This message contains a simple method of manufacturing a telecommunication device, please import this information into your central computer, the program will automatically start the manufacturing process, and then please communicate with us so that we can locate your coordinates. You will be greeted by a special person to the safe zone. ”

"Again, you may be in a dangerous situation! It's dangerous! ”

"Broadcaster: The Third Starfield Detachment of the Guardian Alliance."