The mass of Tianyuan B is greater than that of Jupiter, and correspondingly, its gravitational control range is also greater than that of Jupiter. Xiao Yu observed that among the satellites orbiting Tianyuan B, there are more than 20 that have reached hydrostatic equilibrium.

"This is too suitable for building an interstellar fortress, well, after the construction of the four large particle colliders and the new spaceship in the Ring of Heaven is completed, the construction of this place will begin. Tianyuan C will also be built as an interstellar fortress, so that Tianyuan B and Tianyuan C will become the two lines of defense in the four star systems of Tianyuan. If I encounter any aliens who don't open my eyes, even if the technology surpasses mine, I will have the power to fight. ”

Xiao Yu thought secretly.

The material composition of Tianyuan B is not much different from that of Jupiter, which means that Tianyuan B will become Xiao Yu's inexhaustible source of nuclear fusion fuel. After a preliminary investigation, Xiao Yu sat on the Tianyuan, escorted by fifty township-level spaceships, and drove all the remaining three hundred village-level spaceships into the atmosphere of Tianyuan B, and slowly drifted along with the atmospheric flow of Tianyuan B.

It took a month of busy work for 300 village-level ships to collect enough fusion fuel to fill all the ships. These fusion fuels, judging from the current construction progress, are enough for Xiao Yu to use for three months.

"It's still a little less, my projects are too big, and they consume too much energy. Using these combat ships to collect fuel is too inefficient. It seems that after going back, we will have to develop a ship specifically for collecting fuel. ”

Xiao Yu, who embarked on the return journey, made up his mind.

In this era of large-scale construction, Xiao Yu's total energy consumption alone is estimated to be comparable to the entire energy consumption of human beings in the earth era, which is an incredible amount.

Fortunately, there is an entire planet as Xiao Yu's energy source base, if it was on the earth, there would have been an energy crisis a long time ago.

Because it was full of fuel and the mass of the spacecraft increased, it took Xiao Yu ten days to return to Tianyuan A, and with the arrival of a large amount of fuel replenishment, the construction of various projects in the era of large construction has once again accelerated the progress.

Xiao Yu temporarily stopped the construction of combat spaceships, and began to build a kind of spaceship specially used for collecting fuel, this kind of spaceship is larger than any of Xiao Yu's existing spaceships, its total mass has reached three million tons, and the volume has reached 1,200 meters by 500 meters by 60 meters.

However, there is still a certain gap between this kind of spaceship and the real city-level spaceship, in addition to the necessary laser anti-collision device, it is not equipped with any other weapons, the maneuverability is very poor, the maximum speed can only reach 100 kilometers per second, the protection is also very weak, a low-power energy cannon shell is enough to level it, on the whole, it basically has no combat effectiveness, but it is very suitable for use as a transport spaceship.

In Xiao Yu's plan, each of these spaceships will be equipped with 200 village-level and township-level spaceships, and after arriving at Tianyuan B, the city-level spacecraft will enter the orbit around Tianyuan B, and the village-level and township-level spaceships equipped with it will enter the atmosphere of Tianyuan B for mining, and after the collection is full, the fuel will be transferred to the city-level spacecraft, and then continue to collect until it is fully filled and then return.

A total of five city-level spaceships were built in the first batch, counting the village-level and township-level spaceships equipped with their respective units, which can meet the current one-year consumption of Xiao Yu's various engineering constructions. And with the experience of collecting fuel for the first time, Xiao Yu has already compiled a program for automatic collection, and he will not need Xiao Yu to go to Tianyuan B to mine fuel in the future.

After solving the problem of energy sources, Xiao Yu began to work on the construction of various space batteries, ground batteries, large planetary engines, and large particle colliders.

The city-level spacecraft was busy shuttling in space, transporting a large amount of fuel for Xiao Yu, thousands of mining bases, hundreds of mechanical foundries were in full swing, and hundreds of village-level spaceships were responsible for the task of transporting the surface of the planet.

Three years later, the first large planetary engine was built.

This is a 100-meter-high, covering an area of 600,000 square meters of giant building, the whole building is in the shape of an inclined cylinder, Xiao Yu also installed an adjustment device at the bottom of the building, which can easily adjust the tilt direction of the entire building.

Thousands of robots are busy inside the building, debugging various instruments, installed all over the building, up to a million sensors are constantly transmitting information to the central computer, Xiao Yu exerts his huge computing power, and responds to them one by one.

"The pressure of the fuel tank is normal, the nuclear fusion reactor is normal, the cooling system is normal, and the injection port is normal......" Xiao Yu looked at the data one by one, and after making sure that everything was normal, he gave the order to start up.

In order to prevent a large number of air jets from affecting the space docks and satellites he arranged, Xiao Yu adjusted the orbits of various aircraft in the direction of the jet port in advance and avoided them in advance.

With the order to start up, immediately, thousands of nuclear fusion reactors began to run at full power, a large amount of energy was transported by wires, transmitted to the pressure chamber, the pressure chamber was pressurized and heated to an unimaginable degree, and a huge amount of propellant was ejected from the nozzle port at an incredible high speed under the action of high temperature and high pressure.

This is the back of Tianyuan A, here is the eternal night, but suddenly, at the equator of Tianyuan A, a bright blue light appeared, this light rose to the sky, the length was tens of thousands of meters, like a dazzling lightning, cutting through the dark sky, illuminating the nearby area of dozens of kilometers in a blue and faint area.

It's as if Tianyuan A suddenly grew a slender tail.

A satellite orbiting 300 kilometers above the ground was blown by this air current, and immediately, the extreme heat burned and melted its outstretched wings, and then, like a mosquito in a strong wind, was blown to the second cosmic speed of Tianyuan A, tumbling and rolling I don't know where to run.

"I ...... Wipe. Xiao Yu looked at all this dumbfounded, and rarely burst into a foul language.

"The height of the air jet, the thrust it generated, etc., have exceeded my original estimate, and it seems that the orbits of various aircraft in space need to be readjusted."

After the satellite was blown away, Xiao Yu's pre-built Haode seismic wave monitoring instrument detected a faint seismic wave, which Xiao Yu knew was caused by the deformation of the earth's crust under tremendous pressure.

At the same time, tens of thousands of detectors installed in the ground ranging from tens of meters to tens of thousands of meters also continuously transmitted data to Xiao Yu's brain. These data will help Xiao Yu to analyze the forces on the earth's crust.

Xiao Yu's brain was spinning rapidly, thinking about these questions, while nervously staring at the data from the pressure sensor, carefully manipulating the planetary engine, thousands of robots and tens of thousands of controllers, constantly making subtle adjustments.

"According to the current data, the No. 1 planetary engine will be able to produce a huge amount of reverse thrust on Tianyuan A, which is specifically manifested in the fact that the No. 1 planetary engine can produce a deceleration of 0.1 millimeter per minute for Tianyuan A...... The current orbital speed of Tianyuan A is 59 kilometers per second, which means that if the rest of the factors are not considered, it will only take more than 100 years for the Planetary 1 engine to make the speed of Tianyuan A zero. ”

"But considering the pressure in the earth's crust, the direction of deceleration and the acceleration in the later stage, it is not enough to have only one planetary engine, at least 10,000 units are enough." Xiao Yu silently calculated, "10,000 planetary engines, well, five years is enough time to build." ”

Building a planetary engine is a complex process, in addition to considering the construction process, it is also necessary to consider the geology of Tianyuan A, the reason is very simple, if a planetary engine is built in a place where the earth's crust is not hard enough, when the planetary engine is started, under the huge pressure, it may directly drill through the earth's crust and run underground.

Moreover, because the power of the planetary engine is too large, Xiao Yu must also consider the material resistance, heat dissipation system and other aspects. But even in the face of various difficulties, Xiao Yu is confident that within five years, all the planetary engines will be built.

Labor is not a problem for Xiao Yu, as long as the raw materials and energy are sufficient, several major robot factories are fully producing, thousands of robots will be produced every day, these tireless, accurate, infallible high-quality workers, is a strong guarantee for Xiao Yu to carry out various constructions.

Now, the total number of robots that are busy on the ground of Tianyuan A, as well as various spaceships such as transportation brigades and combat brigades, as well as space docks and turrets, has exceeded one million, and it is still increasing rapidly.

This is only the initial stage of construction. When Xiao Yu pushed Tianyuan A into a suitable orbit, the construction of the four large particle colliders around Tianyuan was the real challenge to Xiao Yu's technology.

The Huantianyuan-4 Large Particle Collider will revolve around Tianyuan-4 at a distance of 438 million kilometers from Tianyuan-4, and rely on its own rotating centrifugal force to counteract the gravitational pull of Tianyuan-4. In this way, the total length of this collider will reach more than 200 million kilometers, and its total mass will reach more than 700 billion tons at a diameter of 20 meters.

This, without calculating the mass of the necessary reserve maintenance liliang fleet, as well as the mass of various anti-meteorite impact batteries.

It's going to be a great project.

Xiao Yu's level of science and technology will make a great leap forward with the completion of the four large particle colliders in Huantianyuan.