Road to science and technology

In the following days, the lens detector seemed to disappear and never made a sound again. Not even when Xiao Yu was searching hard and couldn't find a way.

On the other hand, Xiao Yu is worthy of being a big BOSS trumpet. During the exploration process, he no longer looked for the lens agent to ask for answers, but looked for answers with an unprecedented relaxed attitude.

There is no thought of giving up, only the effort to move forward.

In this state of mind, Xiao Yu still had time to recall every bit of life in the Earth Age. The basic theories of escaping from the four-dimensional barrier had already been similar in that era, and as a researcher, he was naturally exposed to these. Theory, so he thought of it one day like a sudden flash of inspiration.

That's the Klein bottle.

Of course, Xiao Yu first thought of the Möbius strip.

The reason why he thought of the Möbius strip was because when he was relaxing, he suddenly thought of a joke circulated in the Earth Age.

It is said that there was once a lovelorn young man who was depressed, so he went to a temple to find a Zen master to explain his doubts. He asked the Zen master why there was sadness besides joy in this world. The Zen master asked the young man, "If so, then this Is there any paper in the world that only has front side but no back side?

What the Zen Master didn't expect was that the young man actually said yes, and then immediately tore out a piece of paper, flipped one end of the paper 180 degrees and merged it with the other end, and a paper with only one side was born.

This story may be intended to satirize the Zen master for not knowing science, or to satirize the young man for asking the wrong person, but Xiao Yu got a method out of it.

If this piece of paper is a two-dimensional piece of paper, then the Möbius strip allows a creature living in it to come to the other side of the paper without ascending to another dimension.

The same is true for the space now isolated by the four-dimensional barrier.

Since opening a four-dimensional channel is an unachievable technology for Xiao Yu, it can only be operated on three-dimensional space. Through some distortion of the three-dimensional space, it becomes a Klein bottle structure. Then follow this If you enter the bottle mouth, you will be outside the four-dimensional barrier.

But just like a real Möbius strip cannot be created in the two-dimensional world, because when the Möbius strip is twisted, it exceeds the two-dimensional space. In the same way, a real Klein bottle cannot be created in the three-dimensional world. was created in.

Therefore, if you want to create a Klein bottle in three-dimensional space, you must meet two conditions. One is to have a deep understanding of four-dimensional space, and the other is to have a four-dimensional space.

This is easy to understand. Just like a piece of paper, if there is only two-dimensional space, then the paper can only extend and shrink in the length and width directions. The reason why we can turn the paper is because the paper is in in the three-dimensional space we are in.

Therefore, the prerequisite for making a Möbius strip is that there must be a three-dimensional space.

In the same way, to make a Klein bottle, you must have a four-dimensional space.

Of course, Xiao Yu cannot create a four-dimensional space now, but this four-dimensional shield is a ready-made four-dimensional space. Xiao Yu himself also had personal experience with the four-dimensional space when he encountered the semi-four-dimensional Taihao before, and also A lot of data has been recorded, so as long as Xiao Yu has the ability to bend three-dimensional space and the huge energy required to bend space.

It just so happens that these two things are what a level four civilization should have. The ability to bend space was already possessed when he was conducting research on super-light speed, and huge energy can also be obtained through element decay technology.

So under this situation, Xiao Yu mobilized the intelligent beings under his command and started to roll up his sleeves and work hard.

Finding a method may not be possible right away. It also requires continuous search for the correct spatial curvature that twists into a Klein bottle. These are not things that can be achieved overnight. A long period of time and a large number of experiments are required.

This is what technological civilization is like.

Moreover, after the experiment is successful, usually it will not be put into use immediately. Instead, a small Klein bottle will be manufactured first for practical testing. Only after there are no problems in the end, the target Klein bottle will be actually manufactured.

Xiao Yu is naturally also a technological civilization, so he did not miss any of these steps, which can be said to be very rigorous.

So after only forty years of hard work, Xiao Yu successfully escaped from this four-dimensional barrier and enjoyed the joy of success more than twenty years earlier than in the original work.

This saved him more than 10,000 spaceships from having to be dismantled and used as energy sources.

The fleet of more than 120,000 spaceships originally had more than 110,000 ships after successfully breaking away from the four-dimensional barrier. Of course, the fuel and other things are naturally consumed, otherwise there would be no need to dismantle the battleship for fuel.

When all the more than 110,000 warships were out of the four-protection cover, Xiao Yu immediately said to the direction where the lens was originally: "Lens, I succeeded."

Unexpectedly, the voice that answered him was not here, but sounded from the space several kilometers away from Xiao Yu's battleship.

Of course, it is not transmitted in the form of sound, but electromagnetic waves.

"Very good, then you should have seen the reward of 100,000 four-protection shields and the last words Taihao gave you."

"Yes, I got 100,000 four-protection cover generators, and also learned the information left by the Taihao civilization, and promised it to go to the Large Magellanic Cloud to fulfill its last wish when it is strong enough." Xiao Yu had no idea He said with reservation, he seemed to trust the lens detector a lot, maybe because he knew that the other party would know it even without telling him.

"Very good, then it's time for me to go. In my calculations, these four-level protective shields are enough for you to become a top-notch existence in the fourth-level civilization."

It seemed that this guy really just came to ask me some questions or confirm some information that I didn't know. He really didn't seem to have any ill intentions towards me.

Thinking about this, Xiao Yu asked: "Where are you going? Can we see each other again?"

"I will leave the Milky Way and the local galaxy group area. As for whether I can see you again, I am not sure. It depends on the arrangements made by my creator after getting the information I have recorded over the years. And I am not sure whether I am leaving. Will I be discovered by that being in the process, but in order to send complete information to my creator as soon as possible, I must do this."

In fact, it is not impossible for the lens detector to transmit information to Yue Yuanzhou in the Milky Way, but in Yue Yuanzhou's speculation, the defenders' eyes must have been focused on the star field within the Milky Way, so it is very possible to transmit information across the universe within the Milky Way. Will be intercepted or even destroyed or blocked.

So you must stay away from this area first.

When Xiao Yu heard such words, he was so deeply shocked that he didn't even listen carefully to the rest of the words.

"Leave the Milky Way? Leave the Local Group of Galaxies?!"

Semi-fourth-dimensional Taihao's words, 'I followed the Magellanic meteors from the distant Large Magellanic Galaxy,' rang in Xiao Yu's mind again.

This sentence made him stunned for a long time.

Because he knew that it was a long journey of more than 160,000 light-years, and if Taihao, a semi-four-dimensional sixth-level civilization, wanted to cross such a journey, he had to follow the Magellanic meteor.

But now this lens detector says 'leave the Milky Way, leave the local galaxy group area'.

Xiao Yu has long known that Taihao must be a powerful being who can cross over from the distant Large Magellanic Cloud. His challenge to the Sweepers has already proved this. Although he was killed by the Neutron Battle Star, it did not affect Xiao Yu. impression of its power.