While the concentration of matter in a typical Nebula Region is abundant, it is only a few hundred or a few thousand atoms per cubic meter. However, due to the explosion of multiple stars in a short period of time, the concentration of matter in this Nebula Region can no longer be measured by the number of atoms. The matter here is as thick as Earth's atmosphere, with various gas clouds and elemental particles floating in the starry sky, forming a dense fog area spanning tens of light-years.
The fleet must be established immediately. Putting aside everything else, the materials here alone are enough to destroy Earth Two. When we were on Earth, we received more than 100,000 tons of materials from space every year. You have to understand that the materials in the Solar System are far inferior to those here. The materials that Earth Two gains here every year are more than enough to build a fleet of ten million Wind Master. If these materials are not processed, Earth Two will become heavier and heavier.
People can now clearly feel a significant increase in various impurities in the air. Every so often, strange substances will settle on tables and windows. After analysis, these substances, in addition to dust, also contain many metallic elements, including rare metals such as gold and copper.
Scientists could only advise everyone to wear simple masks to avoid inhaling too much of these metallic elements and causing harm to the body, and to manufacture more air purification equipment when conditions permit.
The inevitable result of increasing mass without increasing orbital speed is that Earth Two will continuously move closer to the star until it becomes part of the star. Moreover, the orbital speed will continue to decrease due to the drag of matter. However, there is no need to worry for the next few decades. It would be better for Earth 2 to be closer to the star, as it can provide some energy to Earth Two and raise the temperature above zero degrees Celsius. Sufficient light and heat can also revitalize plants.
Hu Yu needs to build the fleet before Earth Two reaches its limit in terms of distance from the star. The Academy of Sciences has also developed several backup planetary reduction plans, but the best plan is for the fleet to control the planet's position, which is simpler and more precise.
The survivors recovered quickly. Among them were over 500 million elderly people who had lived through the Earth era. Although over 100 million people died in this disaster, they possessed a more resilient spirit than those born later. This group served as the strong foundation of the fleet's humanity. As long as the foundation is solid, any tall building can be constructed. They encouraged each other, calling on everyone to be strong, abandon their grief, rebuild Earth Two, and rebuild the fleet.
With their encouragement, Hu Yu didn't need to do much ideological work with everyone. People began to emerge from their grief and return to work, busy trying to forget their sorrow and for the future of humanity.
The first blast furnace on Earth Two was quickly built. Earth Two was chosen not only because it was similar in size to Earth and other factors, but also because it had abundant mineral resources. Although not as rich as the abandoned resource planet, it was enough to build a small fleet.
Earth Two is essentially a habitable planet. There are no factories, not many machines, and no complete industrial chain. Apart from its intelligent inhabitants, it is almost no different from a primitive planet.
Without machines, people made things by hand. Every screw and every component was painstakingly crafted by countless hardworking hands. These components may not have been precise enough, but they laid the foundation for the manufacture of precision machines in the next step. Human development has been accumulated little by little in this way, from the earliest rough handcrafting to the later high-precision manufacturing.
A year later, many machines on Earth Two were already humming. These machines would replace most of the heavy work people did, so people would no longer have to carry heavy loads on their shoulders, and efficiency would increase by dozens of times.
Three years later, the plants grew lush and green again, erasing the scars of Earth Two's injuries and covering up the past pain. More than a hundred blast furnaces stood on the planet's surface, continuously smelting steel. Factories also began to be built one after another, and many of the completed factories were already bustling with machines and people.
In addition to factories, people have also built giant yurt-like structures made of steel and glass. These glass enclosures are connected to each other by pipes. Living in an atmosphere filled with metallic elements for a long time is very harmful to the human body. These high-strength glass enclosures are completely isolated from the outside world and can provide people with a safe living environment.
Five years later, the industrial chain was fully established again, and the production of warships began. Due to insufficient resources, the size of the warships this time was designed by scientists from the Academy of Academy of Sciences to be 1,200 meters in length, much smaller than the Wind Master, but still sufficient. It was estimated that 20 million to 30 million ships would be built.
These warships were simply scaled-down versions of the Wind Master, with almost all functions remaining identical. Therefore, the new warships were not renamed and were still called Wind Master.
Hu Yu considered that the technology of the Wind Star Civilization could not be fully deciphered in a short period of time. In addition, the current priority was to ensure their own safety, and having this number of warships was sufficient. Moreover, there was not enough time and energy to produce warships in the hundreds of millions like the Wind Star Civilization.
The fleet's overall technology remains at the Mid Star System-Level. Apart from a small portion of the Wind Star Civilization's technology being analyzed, the rest is still being translated. Scientists are working overtime to analyze it. After this disaster, scientists have realized that only the most advanced technology can guarantee survival. Without advanced technology, even the largest fleet is useless and will only become a target for others to practice shooting on.
Ten years later, the first streamlined version of the Wind Master was finally built. To celebrate this moment, Hu Yu specially arranged for the Wind Master to be adorned with red silk and to circle Earth Two a full hundred times using conventional power engines. Its massive size and the deafening roar of its engines made it visible and audible to every citizen, giving them encouragement and comfort, and telling them that the first warship had been built, and that more warships would be built in the future. Everyone's efforts had not been in vain, and the fleet would become powerful again.
In the first decade, the construction of warships was merely an add-on; the focus was more on manufacturing enough machinery and equipment and perfecting every aspect of the process. Sharpening the axe before chopping wood is essential; only with a solid foundation can later production proceed more smoothly.
In the second decade, the number of Wind Master increased to one thousand. Compared to Tau Ceti, this growth rate was still very slow. This was because the Wind Riders were larger and more complex than the Hunter-Killer Wind Master, and also because not all resources were devoted to fleet production. In this decade, the number of factories increased more than fivefold. Now, there are more than 500,000 manufacturing plants of all sizes on the entire planet's surface. Some of these factories may be only a dozen or twenty square meters, with a single high-rise building accommodating hundreds of them. Others may be tens of square kilometers in size, requiring the removal of mountains and the filling of lakes to accommodate them.
In the third decade, the fleet finally entered a phase of full-speed production. Over this decade, the number of Wind Master increased to 300,000, exceeding the construction speed of Tau Ceti and Alpha Centauri, but still far behind that of the JD3 Planetary System. Of course, it would be impossible to reach the construction speed of JD3 in the short term.
By the fourth decade, people had completely emerged from their grief, and the scars were slowly fading. Everyone was determined to defeat the Fish Horse Star Civilization and avenge their people. Their enthusiasm for work reached a new height, and the fleet reached 700,000 ships by the end of this decade.
By the end of this decade, Earth Two's highest temperature had risen to 10 degrees Celsius, and its average temperature had finally stabilized above zero. Compared to its initial distance from the star, the distance had shrunk by 3 million kilometers over these 40 years, an average reduction of 7.5 million kilometers per year. However, this figure is constantly increasing; in the first year, it may have only shrunk by 50,000 kilometers. As the mass increases, the speed at which the planet moves towards the star will also increase. According to calculations, in another 30 years, Earth Two Earth Two reach its optimal position, at which time its average temperature will reach around 20 degrees Celsius.