“Please a lot...”

A project can be seen, it can be clearly found that people's living environment is moving closer to the earth, there is artificial sunlight in the sky, there is green roadside, and oxygen is produced by plants.Those who are more critical can also feel that the living environment is greatly improving.

Because it is working time, there are few people on the street, one by one, walking in a hurry, some in contemplation, some smiling, different looks, in general, or positive emotions.

Finally, Yu Yifeng and Roman came to a piece of grass, which is one of the main contents of environmental transformation.

Seeing this grass, Yu Yifeng suddenly crouched down and stroked the grass in front of him.They are thick and short, bright green, very ordinary, and very solid.

Although it is just the most ordinary yellow soil, the most ordinary grass, and even its academic name is not known, but these combinations together have brought a very cordial feeling to Yi Feng.

The Moon Base does not have such a lawn.Once Noah, there was no such lawn, and now ... people finally did it, there was soil, lawn, and unknown wildflowers.

Sitting quietly on this lawn, feeling the general light of the sun, around the breeze, climbing over several ants from time to time underfoot... This feeling of laziness makes Yu Yifeng have an illusion of returning to the earth.

This is a sense of homesickness...

In the hometown of Yifeng, there is such a tradition that when tourists go out, they always bring a handful of soil from their hometown.Whenever you think of your hometown, you see your hometown, such as your hometown... but now human beings don’t even have the ability to take a handful of hometown soil.

When you lose your mother, you know that your mother is really good.Perhaps human beings will always be like this, lost to know how to cherish...

After a long time, Yu Yifeng got rid of this sentiment of homesickness, slowly stood up, and sighed.

Earth, humans cannot go back.Humans can only keep moving forward and never back!

Roman seemed to feel the same with Yi Feng, and then he returned to God.“This lawn is the natural park we are about to build.The park is not very large, about 1.2 square kilometers.

It took us a lot of effort to create Earth-like soils with a small ecosystem of insects, small herbivores and small carnivores.”

Hearing this data, Yu Yifeng's eyebrows were tightly wrinkled.1.2 square kilometres?That's not what he wants.According to the plan, this natural park should have lakes, meadows, trees, fake mountains, 1.2 square kilometers how can it be enough?

1.2 square kilometres?It’s too small, why so small?”

“Because ... our technology has not yet made the whole ecosystem cycle.”Dr. Roman shook his head, "I'm going to try a small ecosystem first, and try the bigger one."

“Why?”Suspicious of the treachery.

“In terms of technology and resources, we’re not enough.If the park is too large, there is a lot of water that needs to be irrigated every day.We can get about three Qinghai Lake water from Mars, not much, can not be wasted at will."

"Furthing will emit water molecules into the air, but these water molecules will only accumulate in the spacecraft, will not form clouds like the earth, and will not rain."So the humidity of the air will get bigger and bigger, and the whole ship will be unusually humid, and I don't think you want that."

He nodded his head, which he had not thought of.

"For the problem of air humidity, only the air dehumidifier, by the way, can also recover part of the water ... once the park is large, it is necessary to build more dehumidifiers, consume more electricity, I think it is not necessary."

Yu Yifeng helped his chin to understand, Roman means that the small park is better controlled, and people do not have the conditions and technology to build a large park.It is that he thinks too simple, all artificially created things are complex and exquisite, just like walking a tightrope, it can be said to move the whole body.

The ecological environment of the earth, human beings can not create, but like the earth, there is an automatic adjustment system, which biologists dream of.1.2 square kilometers of park... "Well, then, for the human race, it's good."Nod his head in the unscathed.

“We also pump a lot of air out of the Martian atmosphere, sealed and compressed elsewhere, and we don’t have to worry about the problem of carbon dioxide,” Dr. Roman added.

“Oh, yeah.”He patted his head and suddenly said, "There's a discussion about the universe this afternoon, and I hope you can come and listen."

“Oh, yeah?What is the main thing?”Yu Yifeng asked, if it is more interesting, of course, to participate, this afternoon just free.

“Conjectures about life, civilization, and wisdom.A lot of biological scientists, physicists, cosmologists will participate, the content ... alas, I think you should listen."

Since Dr. Roman had said so, Yi Feng immediately nodded and agreed.Humans know very little about the universe, and if scientists have studied something, it is certainly a good thing, and he, as a civilization leader, should listen.

...

From the moment of the birth of wisdom, human beings have begun to explore the universe and to explore the meaning of life and wisdom.

The four ancient civilizations of human history have their own views.

In China, there has been a round place since ancient times, and its essence stems from the evolution of innate gossip.

Other ancient civilizations have similar views: the ancient Egyptians lived on the Nile coast, the whole region is narrow, and think that the universe is like a long box in the north and south, the earth is floating on the water, the sun and moon stars are hanging on the roof, with divine support.

The Babylonians believed that the sky covered the earth like a round cover, and the sun and moon stars each had life, and each moved on the cover of heaven.

The ancient Indians believed that the earth was carried by four elephants.

These views are strange, and these are the conclusions that people draw from the phenomena they see in front of them, and then boldly conjecture.

It was not until the 4th century BC that the ancient Greek philosopher Aristotle proposed a slightly more reliable "earth heart".

Then, in 1543, Copernicus proposed a more accurate "heliocentric saying".Copernicus believed that the sun lived at the center of the universe, and the Earth and other planets orbited the sun in a circular orbit.

It can be said that human discovery and exploration of the universe is a process of continuous error correction and improvement.

Modern science believes that the sun is just an ordinary star in the Milky Way.The Milky Way is just an ordinary river in the vast universe.Even the word “sunshine” has been denied.

And then, what do people know?Perhaps the knowledge of modern science is still wrong.

Small human beings have never found alien life, and have never seen even a shadow.The only discovery is the Noah spacecraft, but alien life, did not find out where they went?No one knows...

In the year after the explosion of the earth, people had to step into the stars, and found alien life on Mars!

Although it is just some viruses that are not as good as prokaryotic cells.But what does it mean, and what can people read it?

“This is the main purpose of this scientific discussion.We want to bring together the wisdom of all of us to explore life, wisdom and civilization throughout the universe.”At the conference, a female scientist took the lead.

The initiators of this discussion were astronomer Professor Thomson, biologist Dr. Roman, and a female astronomer named Heigl, who was the host of the session.

Yu Yifeng sat down, just an ordinary listener.

Many of the scientists here are serious, and Yi Feng even read a less comfortable meaning.Obviously, the discovery of the Martian virus is not a good thing for humans.

Wasn't the Martian virus conquered by humans?It is said that even genetic sequencing is coming to fruition.Why not a good thing?He just wondered.