The structure of the "Vinnie" planet spacecraft is exactly what Alice said to Erdan. There is a large hollow inside where people can live freely. The "Vinnie" was originally a relatively small "quasi"

"Star", or "sub-star". To explain, this kind of planet has some conditions to become a star.

, has a large amount of helium fuel, but the helium fuel reserves are not enough for it to evolve into a star that burns as violently as the sun, so it becomes an ordinary image as obscure as the moon. In other words, even if it burns, the helium fuel continues to burn for several days.

It will be exhausted in hundreds of thousands of years, unlike the sun that burns for billions of years.

When Siren discovered the planet Winnie, his eyes immediately lit up. He could not find it anywhere despite the iron-blooded journey, and it took no effort to get there. This planet can be transformed into a spaceship! It is not big, so it is very easy to transform it.

Just as they were told, the Sirians carried out a ten thousand-year transformation of the Winnie, meticulously from the inside out. Of course, before the transformation, the Bricks must have a deep understanding of the structure of the planet.

Know its structure.

Planets in the universe vary in size, and some are even larger than the sun. For example, astronomers discovered an unknown planet three thousand light years away from the earth. Through analysis, they found that this planet is more than three times larger than the sun.

; There is no precise definition of the smallest planet, no matter how small it is, such as the asteroids between the orbits of Mars and Jupiter,

There are many fist-sized ones. Of course, asteroids are not real planets, but should be regarded as planetary fragments. Even though planets vary greatly in size, their structures are similar. From the surface to the inside, they can be divided into three main layers: outer shell,

The core, and the transition layer between the outer shell and the core, this transition layer mostly exists in a liquid state.

Take our lovely earth as an example. The outermost layer is the crust, with an average thickness of 17 kilometers on the ground and 6 kilometers in the ocean area. The composition of the crust is very complex, including various sedimentary rocks, various granitic basalts, etc. The crust

Below is the mantle, which is also the thickest part. The thickness of the earth's mantle is three thousand kilometers, and its temperature ranges from one thousand degrees to three thousand degrees. This

Such a high temperature can melt magma, and the pressure is also ridiculously high, so the mantle layer is probably in a molten state. Even if it is not completely melted, there is definitely a local molten state. Further inside the mantle is the core.

The earth's core is divided into an inner core and an outer core. The temperature, pressure, and density here are extremely high. The outer core may be liquid, while the inner core may be solid.

The structure of the moon is different from that of the earth, but the difference is not too outrageous. It is also divided into three layers from the inside to the outside. Then we have reason to think that the structure of the planet Winnie is similar.

Okay, once we figure out the structure of the planet, we can start transforming it.

It is very "simple" to modify the outside of the planet. It is to use anti-matter bombs to directionally blast out the designed jets. The depth must be enough, a few kilometers deep, until it touches the molten magma in the middle layer. Each jet

The diameter of the mouth is also very large, larger than

It's even bigger than ten football fields. After the injection port is formed, it needs to be repaired, and a magnetite-controlled nuclear reactor is set up at the bottom, and other messy things. It sounds simple, but it is more difficult to do than to reach the sky. It is by no means a simple task.

It’s something that happens one day, or rather it’s not something that people do at all.

Not to mention anything else, it is just a jet vent, which is very difficult for us earthlings to dig out even with all our efforts. It is countless times more difficult than digging a Mariana Trench on the continent.

The interior of the planet is the focus and difficulty of construction. After all, we are digging a hole inside a huge planet to create a cavity for human beings to live in. The digging here is by no means mechanical with an excavator or shovel.

, but there is a shortcut.

The structure of the earth was introduced earlier. The surface is composed of a crust that is almost twenty kilometers thick, followed by a high-temperature mantle with a thickness of three thousand kilometers. As for the mantle, due to its high temperature, a considerable part of it exists in a liquid state.

The same is true for the planet Winnie, except that it is smaller and has a mantle thickness of several hundred kilometers.

Hey, the volume of the earth's mantle is so large. If the liquid in it is "pulled out", wouldn't the space be enough for hundreds of thousands or even millions of people to live?

Well, that's true. However, "extracting" the liquid mantle from the planet is easy to talk about on paper, but it is difficult to do it.

We earthlings cannot do these things, but the Sirians have this ability. They usually do it like this: use antimatter bombs to blast one or several deep holes with a diameter large enough on one side of the planet, leading straight to the mantle.

Then wouldn’t the liquid in the mantle come out under the action of internal pressure? Isn’t this the same principle behind volcanic eruptions?

It is true that the liquid mantle will come out, but only a small part can come out. This is like a volcanic eruption that can only bring out a small amount of magma, but more magma cannot come out.

In order for the liquid in the mantle, that is, the magma, to be evenly distributed, the planet must be "impacted". To use the same metaphor, if you kick a person from the back who is well fed and drunk, his

Things will definitely come out of your mouth, and you will spit them out every time you kick them. If you kick them a few more times, you will even spit them out.

Hey, although Winnie is only one-third the size of the moon, it has a diameter of more than a thousand kilometers. What should I use to kick it? With the face or with the butt? Will it work?

If you don't use your butt or face, wouldn't the effect be awesome if you hit it with a spaceship from another planet? With one hit, the Winnie can vomit "full of space" filled with magma, and the core may be knocked out. If it doesn't work once,

Then hit it a few more times until the internal magma is emptied. The magma will cool quickly in space and turn into stone eggs, also known as space rocks.

How was the first spaceship built?

This, I don’t know, I really don’t know, I guess it was dug out bit by bit with an excavator. Of course, the first planetary spaceship must have been small, and it could even be built with bricks and tiles just by manpower. The later ones were

The planetary spacecraft will grow bigger and bigger, and then the technology will mature.

It is impossible to completely drain the entire mantle. It would be good if one-third can be eliminated, and such a large space is enough for humans to live in it. After the interior of the drained planet cools, it will form a criss-cross pattern of hard rocks."

"Pillar", one end of which supports the shell and is connected to the fixed core.

If the planet's entire hot core were eradicated, the planet would die and its magnetic field would disappear.

So is it necessary to eradicate the core of the planet?
Chapter completed!