"Captain Qingluan, Liu Yu, reports to Bing Shijue." Liu Yu looked at Bing Shijue, who was still able to move freely in a weightless state, suppressed the emotion in his heart, and wanted to ask his father those words.

"Are you also co-opted?" Bing Shijue swept over the soldiers and researchers in the Qingluan, and the composition was similar to that of the Boyi, with half capable and half incapable.

"Yes, because I have experience piloting and directing starships." Liu Yu said, turning slightly sideways and pointing to Bing Shijue to introduce, "Now we have broken away from the gravitational pull of the earth. However, in order to reduce the time, it may enter the deep-sea mode next. ”

"Can you withstand acceleration at one-third of the speed of light?" Bing Shijue nodded, "But it doesn't seem to be much needed for me." ”

"Yes, but for you, Bing Shijue, you can save a lot of resources." A curtain of light lit up, and Sophia's face also appeared from it, "Although your speed is comparable to that of Qingluan, you can not eat or drink, but you will always be tired." Think of it like a big sleeper train. ”

"There aren't so many acquaintances on the Qingluan." Bing Shijue swept his mind and found that most of the people here were a mix of military and scientific researchers, and he had no relevant experience before, and the people he came into contact with when he went to the picnic area were also grassroots.

"Do you want to take advantage of this time to brush up on the knowledge of the starry sky?" Sophia shook the paper in her hand, "Commissioner Zheng has a task for me, saying that you are likely to leave the Black Chamber and go to other civilizations next." ”

"I don't know how to get to the territory of other civilizations, but you must at least learn to find your way through the starry sky." Sophia said, "Now the solar system is wrapped in a black cavity, and when you go out, you will focus on this ......."

"This kind of positioning is relatively backward." Han Chaosheng's voice came from the side, and Bing Shijue suddenly found that this disc actually lit up in the sea of his consciousness. I took it out.

"Civilizations of the past already had a well-established navigation mechanism that could predict changes in the galaxy in which they were located, and both the dwarves and elves had stargates." Han Chaosheng bowed slightly to Bing Shijue, "And this...... Call it an astrolabe, it can automatically sense the position after leaving the black chamber, and Bing Shijue only needs to walk along. ”

"Stargate, astrolabe?" Sophia's eyes lit up suddenly, "And what are you, why can a projection appear without a carrier?" ”

"I am an AI created by human civilization, Han Chaosheng. Now present in this astrolabe. Han Chaosheng pointed to the astrolabe in front of Bing Shijue, "But you're right, Bing Shijue really wants to learn some relevant knowledge, otherwise it will be a shame when he goes to other civilizations." ”

"Can I also sit in on it?"

"Hmm...... Your position is the manager of the Astronomy Department of the Xuanwu Alliance, and you can listen. Han Chaosheng thought for a moment and turned to Bing Shijue, "What do you think?" ”

"It shouldn't be a problem." Bing Shijue stared at this translucent phantom, and had to sigh that the once civilized AI was indeed advanced, if it wasn't for this kind of thing, he really doubted that he had his own thinking, and would even exclude himself, "Curious, what is my identity in your cognition?" ”

"The last immortal cultivator of human civilization, and then from your modern point of view, you should be regarded as my superior." Han Chaosheng looked at Bing Shijue with helpless eyes, "But your real level is only in the foundation building period, and your knowledge level is not up to the requirements, so you can only communicate with such an attitude." ”

"In other words, I have to study for nine years?" Bing Shijue looked at Han Chaosheng helplessly.

"You are an immortal cultivator, this kind of knowledge should not be difficult for you." Han Chaosheng said, "But the knowledge over the years is very complicated, and you are actually not very good at using the abilities of immortal cultivators, so we can take advantage of this time to teach you well." ”

"So after all this time, I still have to learn." Bing Shijue shrugged his shoulders, "But in the past nine years, it can be regarded as a little something." ”

"And you have a divine mind, and you have enough to learn the language of the dwarves and elves in it." Han Chaosheng said, "There are other languages in the universe that have to be learned. ”

"I didn't expect that to become an immortal cultivator, I had to learn a foreign language." Hearing this, Bing Shijue's face showed a painful look, and he remembered the sadness of his previous two years of taking the postgraduate entrance examination before he took the English test.

"There's a lot more to learn." Han Chaosheng said, "You have to keep up with the energy operation, body method, and martial arts of the immortal cultivators." ”

"It doesn't look like you're having an easy time, Bing Shijue." Sophia smiled, "It seems that the classes we originally arranged are not needed. ”

"It's still needed." Han Chaosheng said, "Because our knowledge system is based on a Level 3 civilization, Bing Shijue's cognition may not be able to accept it directly. ”

"Anyway, I'm here to learn knowledge." Bing Shijue sighed, but thought of the task he was going to face next, "But I have to learn." ”

"We're all the same." Liu Yu looked at the information in front of him like a curtain of water, "Even our Space Military Department has to constantly practice ship flight and combat mode in space. ”

"A college town on Qingluan." Bing Shijue sighed, but still scattered a trace of divine thoughts, and entered his own sea of consciousness space. Because in the coming days, everyone on board will go into deep-sea mode.

In other words, they have to enter the nutrient solution that can buffer and breathe life, otherwise they will reach a speed of one-third of the speed of light, and outside of the ice consciousness, everyone's body will be directly squeezed into blood foam.

After returning to the Zhihai Space, Bing Shijue divided Sophia and the others to a farther place, so that they could study the documents of the Luo Clan and the Machine Group on the Black Chamber. And he was alone in Yanjiang City, watching Han Chaosheng take out thick books from the void one after another.

"Let's start studying, the history of the two civilizations, the writings, and some scientific research materials." Han Chaosheng looked at Bing Shijue with a smile on his face, "Your sea awareness space should be able to speed up to 100 times, right?" ”

"Won't you have to study for 900 years?" Bing Shijue couldn't help but have a headache.

"It depends on your level." Han Chaosheng said, still taking out a steady stream of books, and in a blink of an eye, there were stacks of books nearly half a person high on the floor of Yanjiang City, covering a small part of the street, "In your current words, come on." ”

————

The time of Qingluan flies, and 1 month passes like this. Now they have just flown over the huge Jupiter. This time was far beyond everyone's expectations, but it was also discovered that at one-third of the speed of light, fusion engines would be less efficient due to overheating.

If it continues to be carried out, then the fusion engine will be completely scrapped.

This situation has troubled many scientists on the Qingluan, because the previous nuclear fusion engine was basically able to run smoothly for a long time, and it had sailed for a long time without any problems.

"Could it be because of the black cavity?" Sophia looked at the fusion engine, which had to rest every once in a while, "Because black cavities are similar to black holes, they have a large gravitational pull, and this gravitational pull will become more obvious the farther away from the sun, which will cause problems with our machinery." ”

"It's possible that some of my maintenance personnel said that during the overhaul, they could hear the sound of the Qingluan." Liu Yu frowned, "Sophia, if this continues, will the Qingluan disintegrate, and once it disintegrates, what should we do?" ”

"The gravitational pull of the outer solar system is indeed beyond our expectations." Sophia looked at the extinguished nuclear fusion engine behind the ship, "In the state of flame-off, the speed of the ship is still slowly increasing, this is not inertia, but it is pulled by gravity." ”

"Can we find a path where the gravitational pull is less intense?" Over the course of a month, Bing Shijue also learned basic knowledge under the knowledge indoctrination of Han Chaosheng, "Because the black cavity is a sphere, there should be this part of the area." ”

"Yes, the black cavity is the perfect wrap of the sun in the center, so we can take the sun as the center of the circle and pull out a line." Sophia said, dotted in the air, depicting the appearance of the solar system, "But because the gravitational pull of the black cavity is very large, this line is not as straight as we imagined, and it will still deviate." ”

"It's too twisted." Liu Yu looked at the crooked line, and his eyebrows could be raised to the inside of his hat.

"There is no way, because of the influence of gravity, our ship has to readjust its course, and then some of the energy is more distributed to the different jets of the Qingluan, so as not to be attracted into the black cavity." Sophia marked the gravitational value in different places, and at the same time depicted a larger arc, "A little off, and we can still come out alive." ”

"What happens if you deviate from that line?" Liu Yu asked.

"It won't die, but the time will be different." Sophia said, noticing the confusion on Liu Yu's face and the clarity on Bing Shijue's face, "Because gravity changes time." Nothing will change for us, but...... It may be that the longer we struggle to deviate from orbit, the longer the Earth and the Xuanwu Alliance will last. ”

"Can it still be like this?" Liu Yu clasped his hands to his chest and pondered for a moment, "But according to this principle, shouldn't we get too close to the black cavity, otherwise the speed of time will change?" ”

"That's right, so our safe distance should be the original location of the Oort cloud, which is 50,000 astronomical units, which is about 0.7 light-years." Sophia said, "At our pace, according to this new trajectory, it will be about three years to arrive." ”

"After that, I'm going to fly alone in the black cavity, and then use the four-dimensional space debris to get out of the black cavity." Bing Shijue said, "Let's move on...... By the way, Sophia, I want to ask you a question. ”

"What's the problem?" Sophia noticed that the voice was ringing in her head.

"If the mass of a black hole is very large, then the flow rate of time will also change very dramatically." Bing Shijue asked, "For example, thousands of years have passed in the outside world, but only a few dozen days have been spent in the black hole?" ”

"Theoretically, there is, but we haven't studied black holes in that detail." After hearing this, Han Chaosheng paced in place for a while, "Why do you ask this?" ”

"Because I think the dwarves and elves haven't heard from us for so many years, is it because they went to the black hole for some reason." Bing Shijue said, stretching out his hand and taking out the book in the void, "Because six thousand years ago, dwarves and elves must have been affected, and they must have been besieged, so in order to reduce the damage, they may go to the black hole." ”

"You got your inspiration from the Black Hole, a Level 3 civilization's energy source, right?" Han Chaosheng nodded, "If that's the case, it's indeed possible." For them, it's only a few dozen days, or even a few months. For you on Earth for 6,000 years, and with nothing to escape from the black hole, it can indeed be used as a refuge. ”

"So on the whole, is the black hole a refuge for a level 3 civilization?" Bing Shijue asked, "And then there's the source of energy...... It always feels incomprehensible. ”

"You can't understand it now." Han Chaosheng smiled slightly, "But you do have an idea, but we will have to wait until we leave the black cavity to decide." In the black cavity, there is no way to transmit the signal. ”

"And if your line of thinking is correct, it will be a mixed blessing for your human civilization." Han Chaosheng waved his hand, "It means that the strength of the two sides is still at the peak, but the disadvantage is that the enemy facing our three-clan alliance is beyond the scope of our strength, and we have to enter it." ”

"Won't it be a level 4 civilization?"

"There's no need." After hearing this inquiry, Han Chaosheng laughed out loud, "I'll tell you when you go out first, your current civilization level can have 4-dimensional fragments, and they are also fragments that once came from human civilization, so you have really picked up a treasure." ”

"Got it." Bing Shijue looked at Han Chaosheng, if it weren't for the fact that his current body was still translucent, otherwise he would really think that this was a former living person, "But I still want to ask, why is human civilization so twists and turns, and it will be targeted by so many advanced civilizations in the universe." ”

"Do you want to ask at this time?" Han Chaosheng sighed, "But also, the level 8 civilization before didn't explain it to you clearly." ”

"Can you tell me now?" Bing Shijue waved his hand, and the sun, moon and stars in the entire sea space quickly drew streamers, "I accelerated the time here, for them in the outer world, it should only be a slight adjustment of the time of the lower orbit." ”

"Okay, I can tell you a little bit about it." Han Chaosheng sat down cross-legged with a helpless look on his face, "So it's really troublesome for you to encounter a level 1 civilization that hasn't arrived, although you have studied for so many years, there are still many things that have to be taken into account your receptivity before you can teach slowly." ”

"There's no way, that's how humans are now." Bing Shijue smiled bitterly and looked at the words that gradually appeared in front of him, "I also have to take into account my true cognitive level." ”

"But it is also understandable that this knowledge is almost equivalent to the knowledge that you would only teach in high school or university in the world of a level 3 civilization." Countless data streams appeared in front of Han Chaosheng, "But the details will still be very complicated, let me give you a brief explanation." ”