Time passed bit by bit, and every day passed, Xiao Yu was one day closer to death.

However, there is still no breakthrough in the research on how to break through the four-dimensional barrier. During this period of time, all of Xiao Yu's computing power was occupied by various data and various models, and Xiao Yu was thinking of ways all the time. In the Eternal Realm, all the Lucca scientists are stuck in a sleepless job, they are gradually being overwhelmed by piles of papers, their vitality is being overdrawn little by little, but they still can't think of a way.

All methods have been tried. I thought of all the ways I could think of. Xiao Yu even tried some rather strange methods, such as the bombardment of faster-than-light kinetic energy weapons, such as the targeted cauterization of solar sails, such as the irradiation of material condensation rays, and so on.

As a result, the four-dimensional barrier is still good to stay there.

The temperature in this galaxy has been rising continuously. At this time, Xiao Yu remembered an idiom from the Earth Age, called boiling frogs in warm water.

This kind of scene is so similar to Xiao Yu's current situation.

"A means that only I can master, and the rest of the fourth-level civilizations can't master...... Or, the other four civilizations can also be mastered, but they can't get the means in the battlefield...... What will meet these two conditions? However, even if I really find one that meets these two conditions, it will only be possible to break through the four-dimensional barrier under the premise that Taihao is kind to me. ”

The questionnaire has been carried out throughout the years, because every year a Lucca child is born and a Lucca child has the ability to think independently. At the same time, in order to try his best to tap the thinking potential of the Luka people, Xiao Yu packaged the questionnaire many times, and tried to scavenge the imagination wealth of the Luka people.

During this time, Xiao Yu also received a seemingly quite reliable answer. This answer came from the hands of an ordinary Lucca housewife.

"I don't know some advanced physical theories, but I think that since the gravitational pull of a neutron star can make the four-dimensional barrier bulge, then strengthening the gravitational force, such as creating a black hole, can the four-dimensional barrier be broken?"

Xiao Yu carried out profound theoretical research on this and conducted another collision with Shiyan.

Xiao Yu now has the ability to create a hadon-level black hole, which is a black hole with the mass of a proton or neutron. Such a tiny black hole will evaporate its mass in an instant. But after the acceleration of the particle collider. The black hole can move at speeds that are extremely close to the speed of light, so that it will have an extremely obvious relativistic effect, and its lifetime will be extended for a while. Then appropriately shorten the distance between it and the four-dimensional barrier, on top of the theory. Xiao Yu is fully capable of manipulating a proton-level black hole. Go and hit the four-dimensional barrier.

Xiao Yu first manipulated both ends of the large particle collider to launch a beam of particles at the same time, and one end immediately changed the direction of the arrangement after launching, aiming the muzzle of the cannon at the four-dimensional barrier, and at the same time launching a laser beam to clear the way for the approaching black hole. Everything is the same process as in the Tianyuan Four Galaxy, where a large particle collider is manipulated to destroy water droplets. It's just that the particle beam has been replaced by a black hole.

At the moment when the two particle beams collided. Because of the extremely high energy level that exploded instantly, a black hole was formed here in an instant. After the black hole was formed, Xiao Yu manipulated the particle collider parts and began to accelerate it.

In normal time flow, the black hole's existence can only be measured in Planck time. But it's extremely high. It has an extremely obvious relativistic effect, and its time flow rate has been greatly slowed down, so it is possible for Xiao Yu to manipulate it and let it hit the four-dimensional barrier before it disappears.

Xiao Yu, along with more than 2,000 Lucca scientists, nervously monitored every subtle process of this attempt.

Everything went well, the black hole was created without a hitch, and it hit the four-dimensional barrier without a hitch. But the result disappointed Xiao Yu.

The four-dimensional barrier is still good to stay there.

Xiao Yu smiled bitterly in his heart, and announced to Luca's scientists: "This attempt has failed, continue to think of the next way." ”

"No, master." Lukka III stood up and said, "Master, I noticed a problem, and that is that after this proton black hole was launched, we did not detect any trace of the black hole disappearing. Then there is only one explanation, this black hole successfully destroyed the four-dimensional barrier, and at the same time penetrated the four-dimensional barrier and reached the outer Shijie. ”

"That's what I thought about, too." Xiao Yu said, "But it's still useless." At present, it can be confirmed that proton black holes can penetrate the four-dimensional barrier, but the four-dimensional barrier will not be shattered like a drop-shaped detector. It seems to possess the ability to heal itself. So, unless we can make a big enough black hole, we won't be able to open a gap big enough for us to escape. ”

Hearing Xiao Yu say this, Luca No. 3 fell silent.

As smart as he is, he naturally knows what Xiao Yu means.

It has been calculated that a black hole with a radius of one meter will reach a mass of 170 million megatons. With such a huge mass, even if Xiao Yu's fleet was filled in, it was far from enough.

You know, even if you turn the whole earth into a black hole, its radius is only nine millimeters. Even if Xiao Yu had an earth in his hand, and successfully overcame all kinds of difficulties, turned the earth into a black hole, and went to hit the four-dimensional barrier - it would only hit a cave with a radius of only nine millimeters, and even the smallest satellite could not get out.

When you think of black holes, you come up with a concept called the Schwarzschild radius. The so-called Schwarzschild radius means that if a piece of matter, whether it is a speck of dust or a planet, shrinks its radius below the Schwarzschild radius, it becomes a black hole. The Schwarzschild radius of the earth is nine millimeters, the Schwarzschild radius of the sun is about three thousand meters, and the red giant star next to Xiao Yu has a mass of about 1.8 times that of the sun, and its Schwarzschild radius is about 5,300 meters.

In other words, even if the entire star were turned into a black hole, the impact cavern it left on top of the four-dimensional barrier would not allow Hebei to pass through - the length of Hebei is more than five kilometers.

That's why Xiao Yucai said that it was useless.

There was silence in the room again.

"We still have twelve years to go, don't worry, we can always figure out a way." Xiao Yu comforted.

Luca III sighed and said, "Master, I feel that our wisdom has been exploited to the limit. I'm thinking, if we really can't break through the four-dimensional barrier, I mean, what are we going to do if we get to that point? ”

"There must be a way." Xiao Yu manipulated his phantom and barely showed a little smile, "Okay, the meeting is over, after everyone goes back, don't think in a hurry, take a rest, and then study when you are energetic." ”

In a sigh, Lucca scientists left their seats one after another, and Xiao Yu also turned off his projection.

"Relax, it's easy to get into the horns of the bull if you think about it like this." Xiao Yu thought about it, and simply gave up the complicated calculation and modeling work.

Within the four-dimensional barrier, because all the light of the central star is reflected back by the four-dimensional barrier, it becomes very difficult to observe the starry sky outside. At this time, Xiao Yu couldn't help but start thinking about a question: "I don't know if the picture of Taihao and the sweeper fighting has been passed on." Their battlefield is only a few hundred light-years away, and the light that carries the battle image only needs a few hundred years to come over, well, when I go out, maybe I can still see it. ”

However, this is clearly wishful thinking. Xiao Yu lost his mind for a moment and threw this thought out of his mind.

Xiao Yu began to pay attention to the Heaven and the New Home. Through the ubiquitous cameras, Xiao Yu watched every move of all Luccas.

This feeling is amazing, as if at this moment, Xiao Yu has become a god - watching countless creatures busy under his eyes, while he is in control of everything at the same time, this situation, it is easy to give birth to a feeling of superiority.

Xiao Yu saw that on the street, the ordinary Lucca people who were still hidden were going on with their daily lives, busily shuttling in shops, parks, squares and other places, and there was laughter and laughter everywhere. The school was very quiet, and only the occasional stern voice of the teacher would break the silence for a short time.

In the middle of the school, facing a monitor is a six-year-old Lucca. It was holding a pen and was writing something seriously on the notebook. Xiao Yu suddenly became a little interested in his heart, and focused his attention on this.

Xiao Yu saw that this Lucca toddler was writing today's diary in a slightly immature tone.

"Today, the teacher taught us a very interesting thing, flip a piece of paper one side one hundred and eighty degrees, and then merge the two ends, you can get such a thing, the teacher said this is called a Möbius ring. It's simple, isn't it? But it's not simple. The most amazing thing is that it has no distinction between the inside and the outside. If you follow the inside of it, you will come to the outside unconsciously, and if you go along the outside side, you will come to the inside unconsciously, and so on, there is no end. ”

"The teacher said that this involves two-dimensional space and three-dimensional space, which seems to be very complicated, and I can't figure it out. But it doesn't matter, I'm still very young, and one day I'll grow up and have a lot of knowledge. (To be continued......)

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