It has been nine years since the frozen giant planet, all life on the surface is dead, unlike the ground, deep underground, there are still signs of biological activity, there are not many species that like to survive in the crypt, most of them are extinct, but there are still a few species that live tenaciously, these species are very small, they dig into the underground magma area, at first they can't find food, they can only eat the same kind to survive, but nature is very magical, Their feces and the fungi in their corpses can grow on the heat radiation of magma, and in the past ten days, a new ecosystem has been formed here, with surviving organisms, fungi, the thermal radiation of magma, and the water flowing down from above.

The environment will change slowly, especially the magma, due to the continuous cooling of the planet's core, the outer layer of magma is constantly shrinking and falling, and some stranded magma will cool and solidify, and then form a large karst space, and the creatures will climb down and carry the fungus deeper over.

When these animals migrate underground, those giant masters will also come to these places to find food and shelter, yes, for more than nine years, they have also become accustomed to the life of the abyss, and it is with these huge cave spaces that they can survive.

These places are large and intricately multiplicated, making them ideal shelters and battlefields where they can barely fight the robots, and they can escape through the complex tunnels if they can't fight them.

But such days can't last long, the robot civilization has taken root on various continents, and is rapidly developing and growing, they are expanding underground space and territory in all directions at an alarming speed, or it won't be long before they will be bordered by the surviving giant tribes, and the giants have no way to retreat, because they can only rely on the cave to survive now.

For these surviving giants, Tan Qiusheng knew about their existence, but she didn't care about these, after all, the general trend has been decided, so what if they survive for a while longer, as long as ordinary robots cover every corner of the planet, they will naturally have no way back at that time, and at that time they will be greeted by the fate of destruction.

Machinery can replicate itself, after such a long period of development, the number of ordinary robots has exceeded tens of trillions, literally the number seems to be a lot, but they are scattered on the ground of 2 billion square kilometers, it is a little sparse, an average of more than 60 square meters to stand a person, plus their respective large machinery, it will seem very crowded, but if they are placed in the very multi-layered area underground, it is a little insufficient.

Just because the so-called manpower is not enough now, Tan Qiusheng did not assign them to get rid of those tenacious giants, and after the ordinary robots are increased by more than 10 times, that is, the number of hundreds of trillions, at that time it will almost cover most of the underground area, and only after reaching that scale can it be regarded as a preliminary and complete control of this planet.

In space, a huge small planetary-level spaceship is almost assembled, the outline of the exterior is close to the state of completion, and the interior is also being transformed simultaneously, the module steel plates in many areas of the interior have been removed, and the size of the expanded places is different, the largest of which is used to house the magnetic confinement nuclear fusion generator, the magnetic confinement nuclear fusion device is not large here, but the steam generator set that converts electrical energy is a behemoth.

Nuclear fusion can produce extremely high thermal radiation and force, simple force is easy to use to generate electricity, if you add extremely high thermal radiation, it will be very difficult, because too high temperature will dissolve and vaporize all the substance, only after diluting the extremely high heat radiation first, can you consider using strong force to generate electricity, or use it to propel the spacecraft forward.

Among them, thermal radiation can use water to dilute and cool, and the water becomes water vapor after heating, and then it can generate electricity through the generator, and after the steam comes out of the generator, it will be transported to all areas of the asteroid spacecraft through pipelines, such as corridors, halls, rooms, warehouses, ecological spaces, and walls around the edge of the spacecraft, etc., these areas can be used for cooling, compared to the outside of the universe are colder, which is similar to the cooling system of geothermal generators, the first difference is the cooled water in space, You need to turn on the pump and pump it back to the generator's reservoir.

The second difference is the treatment of strong expansion, strong force is converted into weak force, it is a kind of expansion of space, for the expansion of space, you can't always use magnetic constraints to limit, if you don't limit them, if you let them run around inside the spaceship, the spacecraft may be blown up like a balloon.

At the beginning, the overflow force can act on the matter, and when they are not diluted to a certain stage, the matter can still hinder their overflow speed, and when they are diluted to a certain extent, they can penetrate the substance, similar to protons and electrons, or it is easier to penetrate the past than these, because they are massless things.

The diluted expansion space is mixed with water vapor, and if the opening is opened directly, it means that the water vapor will also be discharged out of the spacecraft, which is no different from the thrust of the working fluid, and the same consumption of a lot of resources for thrust will outweigh the losses.

How can we separate the expansion space from the water vapor?

The first point is to use water to dilute the heat of thermal radiation, which has already been done here.

The second point is to use the cooling ducts to further dissipate heat, which is also done.

The third point is to open a large number of separation openings in the second half of the cooling pipe, and install a filter screen on the separation opening, which is similar to the water vapor condensation filter, but this filtration effect will be more excellent.

Since the expansion space is not a substance, the filter screen cannot restrict them, even the pipe wall of the pipeline cannot restrict them from penetrating out, it is nothing more than it is easier to go out along the pipe, so they can pass through here smoothly, as long as this kind of filtration is wide enough and multi-level configuration, it can ensure that a large amount of expansion space passes through here, and after passing through this filter, the mouth will begin to shrink, and then countless such small pipes will converge to the spout, and the spout here is not large, The narrow spout is conducive to remote direction.

In the vacuum environment of space, the thrust is as much as it is, and the change of direction can only be adjusted by the cooperation of other nozzles, which is very different from the aircraft, the environment in which the aircraft is located has air resistance, the size of the wings and the size of the vents, and the position between them are very important.

The thrust of the asteroid spacecraft is not very large, but it is not small, the biggest advantage is the maximum use of energy, heat radiation and the expanded space can be used to generate electricity, after the electricity, the heated water vapor can heat the whole spacecraft, and the expanded space can be used to propel the spacecraft to move in space.

The second largest space is the ecological space, which is the place where people live, and it is a miniature natural ecological environment, which simulates the subtropical environment of the earth, and the planting of the earth's plant species is relatively small, such as apple trees, lychee trees, rice, wheat, cabbage, bitter gourd, cucumber, cauliflower, potatoes and other crops, as well as some flowers and plants.

Plants are distributed on the walls in all directions of the whole space, the soil is fixed on the wall, and the plants grow on it, because it is gravity-free, the light source is set in the center of the space, it twists its neck like a sunflower, and rotates 360 degrees according to the earth's schedule, among which the plants that love sunlight will concentrate on the route with the most light, and the plants that do not like sunlight will disperse to the edge of the light.

There is no watering here, and the water mist irrigation method is used, which is to increase the moisture in the air, so that all plants in 360 degrees can collect and absorb the moisture in the air by themselves.

There are little ones flying on the flowers of plants, they are not creatures, but a group of bionic mechanical insects, butterflies, bees, beetles, etc., they are very delicate, and the habits are very similar to these insects, because they collect nectar, which is used to fill their stomachs, and their little stomachs can convert organic matter into electricity.

The program is to let them pollinate the plants at the same time, so that they can get enough energy to maintain their daily needs, but Tan Qiusheng is not so easy to let them go, not to mention bees, they are set up as the habits of bees, bionic mechanical bees not only collect nectar, but also build honeycombs, and then hoard nectar in it, since there is honey, naturally someone will collect it on a regular basis, these sweet earth specialties, of course, will become a ration for Tan Qiusheng and other human beings.