Su Zhe and the five people walked in the passage under the guidance of the commentator, and after passing through the three gates, several people lit up in front of them.

After walking out of the last door, the five of them saw a patch of green, and in this green, they could also see some cattle and sheep scattered in this green.

Su Zhe and the five of them were floating in the air and flying slowly, and the narrator was explaining on the side. The sky ranch is different from the space farm is zonal, the ecology of different areas is nuanced, the space ranch is different, it is a whole, the whole ecology simulates the ecology of the grassland, the grassland has, the space ranch has it.

The height of the main space of the space ranch is 100 meters, which can simulate night and day, rain and snow.

Zuo Dajun looked left and right, back and forth, and said with a smile: "If you don't look around, you still think that you are really in the grassland, look, in addition to those pastures, there are also a lot of leeks, and they are all blooming, really, this is really no different from the grassland." ”

"Look at what you said, didn't the narrator just say that the space ranch simulates the ecology of the grassland, except for these plants, small animals, and those microorganisms are all the same, and all the soil and everything is according to the standards of the grassland." Fan Xiaoming reminded.

"This ...... In this way, this is a replica of the ecology of the grassland, so that we can live here? Zuo Dajun asked with a smile.

Fan Xiaoming nodded and said, "Of course, those cows and sheep can survive here, and we can do the same." Bao Qizheng nodded and said: "The research on space ranches, especially the research on grassland ecology, is our preparation for building a human space home." ”

"Yes! I know that. Zuo Dajun said with a smile,

"For building a human home in space, or building a human habitation in space other than the earth, there are basically two routes, one is to still in those celestial bodies, such as transforming the moon and transforming Mars, and the other is to build human homes in space, such as space cities, ecospheres suitable for human survival, etc., as far as the current debate between the two sides is concerned, the former is at a disadvantage, and the latter has taken the initiative." There are many people who support these two routes, but at this stage, the former is still a little less interesting, and the latter is more operable.

Take Mars as an example, the former proponents want to transform Mars so that the Martian environment is suitable for human survival.

As far as science and technology are concerned, it is basically impossible to transform Mars into an environment like Earth, especially the transformation of the whole world.

One of the most difficult to solve is the problem of gravity, and then the problem of the Martian atmosphere and magnetic field. The problem of gravity is really hard to solve, at least at this stage.

After all, there is still no complete understanding of what gravity and gravity are, let alone changing gravity.

As for the question of the Martian atmosphere and magnetic field. If you really want to operate, that is to say, you can do it, and both of these problems can be solved.

If the problem of the atmosphere is really not good, put a coat on Mars, and if the magnetic field is artificially created. Proponents of the latter attack the former on the inability to alter the gravity of Mars.

According to the latter, the creation of a human home should be built in strict accordance with the earth's environment, whether it is gravity, magnetic field, pressure, etc.

The purpose of this is simple: to prevent the natural differentiation of human beings. For example, if human beings survive on Mars, even if other environmental conditions are the same, the gravity is different, but over time, people living on Earth and Mars will diverge, and after a few years, they will divide into two groups.

Such a situation can be avoided, and it must be avoided. Compared to the former who transformed Mars, the latter is much more straightforward.

In the eyes of these people, Mars can only be regarded as a resource mining site, so to speak, except for Earth, all other celestial bodies are resource providers.

From the perspective of these people, except for the earth, it is impossible to find a living environment in the universe that is exactly the same as the current stage of the earth.

At this stage, these people support the construction of space cities and ecosystems, and create a living environment that is exactly the same as the earth's environment.

After figuring out gravity and gravity, there is no need to modify Mars or anything, and directly use these celestial bodies as resources to build an upgraded version of the Earth, or an upgraded version of the solar system.

It's much easier than modifying those celestial bodies. So far, there are significantly more supporters of the latter than the former.

It's also funny to say that the special zone led by Lingzhou University of Technology is grasping two routes at the same time, and related projects are being carried out.

It's just that the reformists are still in the theoretical stage, after all, the celestial bodies are different, the transformation schemes are different, and the problem of gravity cannot be solved, which leads to the fact that the reformers are still in the theoretical stage.

But even so, a celestial body in the solar system was selected as the object of transformation. The modified object is a moon of Jupiter.

The renovation work being done now is mainly focused on this satellite. The construction school is different, and it has entered the practice stage early, such as space farms, space ranches, and ecosystems.

This is even more true of those space cities that are being built. This is a special zone dominated by Lingzhou University of Technology. The special zones dominated by Qing University and Yan University are completely different.

The former is overwhelmingly pro-construction, while the latter is overwhelmingly pro-reform. Both are running wild on the supported routes.

Qing Da directly set the goal of the Keyinbo belt, and wanted to use those celestial bodies in the Keyinbo belt as resources to build a human home.

This human home is known as Second Earth. It is the same size as the Earth, but the difference is that the Earth depends on the sun to maintain its environment and cannot leave its orbit.

Furthermore, the Earth's environment is directly affected by the sun. Second Earth is different, its energy comes from controlled nuclear fusion technology, and as long as there is enough fuel, Second Earth can support it.

As for the biggest advantage, it is that the earth can move freely in space. Qingda's ambition to build a second earth is not small.

The ultimate goal is to spread the entire universe with the Second Earth. According to what Qingda said in the propaganda, the second earth can be replicated in large quantities, and it can be docked in the star system and rely on the energy of the stars, or it can wander in the dark space and rely on its own nuclear fusion energy to operate.

Theoretically, a second earth is completely feasible. For now, the difference is controlled nuclear fusion technology.

You must know that the special zone led by Qing University has made great efforts to build a second earth, and 80% of the research projects carried out are related to the second earth.

Not to mention anything else, as for the proton fusion device led by the Jiutian Research Center, Qingda is even more active than the Jiutian Research Center, and has taken the initiative to take a lot of tiring swear words.

Compared with Qing University, Yan University is a reformer. Transform celestial bodies, transform star systems. Speaking of which, to a certain extent, the construction school and the transformation school are on the same path.

Fan Xiaoming smiled and said: "For now, the construction faction has more advantages, and when we master the controllable nuclear fusion technology, the advantages of the construction faction will be even greater. Xu Zhengping nodded and said: "To be honest, we originally had similar plans, but I didn't expect to be preempted by Qingda, let's see, as long as it is helpful for the construction of the second earth, Qingda is not positive, such as the construction of the proton fusion device, as well as the beam channel across the solar system, and the expansion of the light pillar project." Bao Qizheng said seriously: "As far as the current Qingda is concerned, basically the vast majority of resources are invested in the second earth, to be honest, Qingda is also really investing in the capital, and now it is preparing for the construction of the second earth, such as large-scale celestial mining equipment, cargo flying saucers, engineering mechas, etc. ”

"Yes!" Xu Zhengping said with a smile,

"Qingda's group of people are very good, when we were heading for Proxima Centauri, Qingda launched a large number of probes to the Keyinbo belt, and the total number of large and small probes exceeded 100,000, not to mention, a large number of celestial bodies were found in the Keyinbo belt, which are all resources." There are many celestial objects in the Keyinbo belt that have been known before, but after exploration, it is found that there are many more objects in the Keyinbo belt than in the past.

There are more than a million objects with a diameter of more than 100 kilometers, or even more, and there are more than 100 objects with a diameter of more than 2,000 kilometers.

In other words, the Coyinbo belt has more resources than the asteroid belt. Fan Xiaoming said: "That is, the beam channel across the solar system, the light pillar project, and the SS-defense system, which will be built in two or three months, partially covered and partially covered, all in preparation for the Qing Dynasty to mine the celestial bodies in the Keyinbo Belt to build a second earth." Zuo Dajun smiled,

"Seriously, I still admire Qingda, if you want to build a second earth, the key is that it is about the same size as the earth, fortunately, the second earth is hollow, if it is the same as the earth, then even if you take Ke Yinbo so the celestial body is mined, it may not be enough." Bao Qi shook his head and said: "This is not necessarily, if you really want to talk about it, there are still many celestial bodies hidden in the outer periphery of the solar system, but these celestial bodies do not emit light, and it is difficult to be discovered." Su Zhe nodded and said: "I support Qingda to build a second earth, according to the parameters given by Qingda, in the case of self-sufficiency, the upper limit of the population of the second earth is 100 billion." Although he is from Lingzhou University of Technology, he was also involved in the design of the second earth.

Speaking of which, there were many people involved in the design of Second Earth, including those who supported the Reformers.

"A hundred billion, so many people." Zuo Dajun looked shocked. Fan Xiaoming said with a smile: "This is still a reference to the traditional way of producing food, if the food is produced by synthetic methods, this amount will increase tenfold, and the population that can be accommodated can reach 1 trillion people." Hearing about the population of 1 trillion people, Zuo Dajun was even more shocked,

"A trillion people, that's more than a hundred times the population of the earth now, it's really scary, of course, such a little person is nothing to the entire solar system, for the entire universe, such a person is a drizzle, and when we humans develop, after walking in the entire universe, how much will the total number of our human beings reach?"

"Great army, you asked this question, now we don't even know how many galaxies there are in the universe." Fan Xiaoming smiled,

"If I had to answer, I could only answer like this, there is no problem at all with a star system of the size of our solar system, carrying a hundred trillion people, and we are still an extremely conservative number, you think about how many star systems there are in the universe."

"How many galaxies there are in the universe, it is estimated that no one can say an accurate number now." Zuo Dajun thought for a while and said,

"That, many star systems have multiple stars, the environment is so bad, how can human beings survive, multi-star star systems are extremely unstable, it is impossible to exist a stable environment, then it can't survive at all." Fan Xiaoming smiled and said: "It is impossible for our earth to appear in that kind of environment, but it is not the second earth, you know, the second earth can be self-sufficient, and the second earth can fly freely, and its location is not limited, as long as there are enough fusion nuclear raw materials, and then, with the development of science and technology, the second earth can continue to iterate, and it is really difficult to say what it will become in the end, but it is certain that the second earth will become extremely powerful, especially very powerful, Even more than we can imagine now. "According to the development of Qingda, the second earth will be really promising if it continues to iterate.

Suffice it to say, the second earth can carry all the imagination of human beings. A single Second Earth would be able to serve as a complete human civilization.

Second, Earth can exist in a galaxy or wander around the universe. Zuo Dajun thought for a while and said: "It's true, the second earth is different from the earth, the second earth can be reached everywhere, as for those stars, celestial bodies and whatnot, it is completely resources and energy, so to speak, the future of the second earth is great, we can continue to copy the second earth, so that the second earth covers the entire universe." Xu Zhengping smiled and said: "That's what the people of Qingda think, so they will press the treasure on the second earth, but then again, the second earth is very suitable as the carrier of human civilization, of course, Qingda is a construction school, its goal is to make the second earth spread throughout the universe, Yanda is a transformation faction, which not only wants to transform the celestial body, but also to transform the star system, and its goal is not small, so that every moment in the universe the star system has a planet suitable for human survival." ”

"This ...... Both Tsingda and Yanda have such goals, our school, what is our goal? Zuo Dajun asked with a smile.

"Our goal ......" Xu Zhengping thought for a while and said,

"Our goal is to explore the universe and consolidate the solar system so that our solar system remains the most powerful human force in the universe." Zuo Dajun was a little excited,

"That's a good goal...... Is the second earth design complete? Can we visit Second Earth in the virtual universe? ”

"This ......" Fan Xiaoming looked at the time,

"Okay! We only have half an hour, let's go check it out and come back. ”