These hydrogen bombs used to carry out space blocking plans are definitely different from those of the traditional hydrogen bomb. They are not a cylindrical shape, and then pointed bombs on their heads. In fact, because they are too big and the internal machinery is too so sophisticated, they must be built large enough to be as big as a spacecraft. So scientists simply used this hydrogen bomb to directly look like a spacecraft and equipped them with a power system and a navigation system. When the mission begins, they will fly to the predetermined location under the control of the staff.

Zhao Lan saw such a hydrogen bomb in the factory. The factory is located at the other end of the space elevator, inside the Earth Harbor. This hydrogen bomb was assembled in the Earth Harbor because it is too big and it is impossible to launch it from the Earth. It is probably the same size as Zhao Lan's car, the Sylvia spacecraft, but its mass is more than ten times that of the Sylvia spacecraft. Because many places inside the Sylvia spacecraft are empty and used as living spaces, most of the "Hydrogen Bomb 1" spacecraft are solid, filled with nuclear fusion fuel and various precision control machinery.

Zhao Lan led the scientists of the mission team to inspect the Hydrogen Bomb 1 spacecraft in detail. It took a full hours to finally sign his name on the inspection record. After that, the Hydrogen Bomb 1 spacecraft was launched, and it flew directly from the Earth Harbor and slowly headed towards the deep space. Zhao Lan and his group also left the Earth Harbor at this time and returned to the ground experimental observation base.

Yes, the Hydrogen Bomb 1 spacecraft will not be used to carry out the space blocking plan. In fact, it is just a test hydrogen bomb, which will explode in an open space in space, and then people will observe the energy released by its explosion to determine whether the hydrogen bomb's energy level is sufficient. This is important, after all, such a huge equivalent of hydrogen bomb only exists in the computing model. In the history of human civilization, people have never really created such a huge guy.

So on the third day after the delivery of the Hydrogen Bomb 1 spacecraft, people in the eastern hemisphere suddenly found that the sky was bright at around 10 o'clock in the evening. A light that was far stronger than the sun was released from the eastern sky, instantly dispelling the darkness of the entire earth, allowing the light to descend into the world in advance. But this light did not last long. It only lasted for three seconds and then passed quietly. Then the sky quickly returned to darkness, with stars still stars, moon still moon, and no changes occurred. This sudden and strange change made people begin to doubt whether the light they had seen before was an illusion.

Zhao Lan did not care about how human society would react to the sudden light this time. She also did not care about what reasons the social public opinion department would use to explain this matter. Zhao Lan only knew that the latest hydrogen bomb passed the test perfectly, and the data observed by the instrument told Zhao Lan that this hydrogen bomb was completely capable of blocking space and preventing the earth from falling into the empty universe. Of course, it was with the cooperation of the black hole.

Time is still passing quietly, and the time nodes in the calculation are getting closer and closer. So far, there are only less than four months left. At this time, Zhao Lan went to the base again, and then Zhao Lan discovered that the base had completely changed within a few dozen kilometers. The flying car was flying on the snow-capped peaks some time ago, and the next moment, it came to a place where birds sing and flowers scented, and the green was rushing like a paradise.

A while ago, large-scale construction completely killed all vegetation that lived on the surface, but the seeds of plant hiding in the soil and rocks would not be killed. With the support of the heat provided by the large-scale cooling equipment, the seeds mistakenly thought that the warmth had returned to this land, so they began to take root and sprout, and finally broke out of the ground.

The temperature here is very high, the rainfall is frequent, and the vegetation is lush. So the animals that originally hibernated did not go to sleep but came to this place and began to reproduce here.

As the flying car landed on a clearing, Zhao Lan heard the sound of birds and the faint roar of wild beasts coming from around her. She was wet with soil, green grass beside her, and a stream flowing in a short distance... Everything was as beautiful as a picture.

Zhao Lan knew that all the nutrients that supported all this beauty in this cold winter were all stolen from the body of the black hole. A black hole can destroy all things, but if used properly, it can also nurture all things.

Black holes play the most important role in the evolution of galaxies. It is its huge gravity that allows stars and star dust to gather together, and galaxies can be formed. Without black holes, there is nothing. Even the extremely tiny black holes that exist in the base now... its extremely huge radiation energy may also be used as the driving force to drive the spacecraft forward in the future.

The scientists in the base have even done relevant research. Their final conclusion is that it is entirely possible to use black holes as the source of power for spacecraft, because the radiation of black holes is continuous and gradually strengthened, while the mass of black holes is gradually decreasing. The reduction in the mass of black holes means the overall mass of the spacecraft decreases, and the effect of a certain amount of energy will become greater and greater. If one day a black hole is really used as the spacecraft engine, its acceleration mode is roughly like this:

In the initial stage, the black hole is of great mass and the radiation is slower than that. At the same time, because the black hole is installed on the spacecraft, the total mass of the spacecraft must be very large. In comparison, the slower radiation may only produce a little effect, so the spacecraft can only advance with a very slow acceleration.

However, as time goes by, the total mass of black holes and spacecraft gradually decreases, and the radiation rate continues to increase, so the acceleration obtained by the spacecraft becomes larger and larger.

The most important point is that the acceleration provided by a black hole is continuous, and the lifespan of a black hole with a mass of one million tons is about thirteen years. In other words, this black hole can continuously provide energy supply and acceleration for up to thirteen years.

Compared with simply carrying one million tons of fusion fuel, the most obvious benefit of carrying a one million tons of black hole is space saving. Obviously, the volume of a black hole is countless times smaller than the volume of one million tons of fusion fuel, which means that the spacecraft does not need to be built too much, or the spacecraft can save more space for other purposes.

In addition, black hole engines are safer than conventional fusion engines and simple equipment manufacturing. The most important point is that they are simple to obtain fuel.

It is not easy to obtain fusion fuel in the open universe. If you want to supplement fusion fuel in the universe, the spacecraft controller must risk approaching gaseous giant planets, or spreading rocky planets on the ground to find water sources to decompose and obtain hydrogen, or risk catching comets to obtain fuel. A black hole is different. Whether it is an asteroid or comet, or even radioactive garbage, stardust, etc., as long as it is matter, it can be thrown into the black hole to continue its life and act as fuel. In the most extreme situations, people can even dismantle the unnecessary hull of the spacecraft and throw it into the black hole to act as fuel. Compared with fusion fuel, the advantages of black hole engines are completely visible.

Scientists in the base even believe that black hole engines will be the only alternative to launch interstellar navigation. If one day human civilization hopes to step out of the solar system, come to Proxima Centauri, Tianyuan Fourth, Sirius and other outer stars within a decades of time and successfully return to the solar system, black hole engines may help people achieve this wish.

But the most important point is... the acquisition of black holes is too difficult, and the existing technology of human civilization is not enough to create black holes. This only remaining black hole was obtained by Li Yunfan from where he wanted to build black holes on a large scale to serve as a source of energy... I don't know when the technology of human civilization can reach this level.

Listening to the gurgling streams and the chirping birds, Zhao Lan's thoughts floated a little far away. It was not until the communication instruments around her started to ring that Zhao Lan came to her senses.

"What's wrong?" Zhao Lan asked.

Li Yunfan's voice came from the communication instrument: "Zhao Lan, this will be the last call between us. After this call, we can no longer contact us until I return to our universe."

Although I had known this result for a long time, when this moment finally came, Zhao Lan felt a little disappointed. Zhao Lan said, "Oh... OK."

In the past time, Zhao Lan had communicated too much with Li Yunfan. Every detail of the plan was confirmed repeatedly and all questions were exchanged in detail. So at this last moment, Zhao Lan didn't know what to say.

"Do you have nothing to say to me?" Li Yunfan smiled, "After all, this may be the last call in our lives."

Zhao Lan was silent for a moment, and the words "I'm waiting for you on the earth" were surging, but I couldn't say them. So Zhao Lan remained silent, and Li Yunfan smiled again and said, "Is there really nothing to say? Then... sir... good... sir..."

Before Li Yunfan finished speaking, the communication was disconnected. Zhao Lan felt a little relaxed and regretful, not knowing what it felt.
Chapter completed!