"Artificial Earth" is a project that came with the construction of Deep Space. Ｘ

Humans were not satisfied with the original ecological environment of Noah, so they have been ambitious to change the inside......

I want to transform it like the real earth!

According to people's plans, there will be forests, seas, rivers, ** and other natural environments in different areas of Noah. These natural environments form a complete set of "carbon cycles" and "water cycles".

The vast amount of energy provided by nuclear fusion is used to support the stable operation of these ecosystems.

After such a long period of transformation, forests, rivers, and ** do exist, and they look pretty good.

Only...... The sea couldn't be more than perfect.

The water of the "man-made sea" is taken from the Nix Star, which is equivalent to the water of 260 Taihu lakes. But the sea looked lifeless, without a ripple.

This is because there is no moon. Without the tidal gravity provided by the Moon, the sea would not have waves, and the waves would have remained so calm......

The so-called "Gold Coast" has never been very beautiful.

Artificial, still not as good as natural.

Everything that human beings do is taken from nature and learned from nature. But no matter how advanced the technology is, it can't replace nature.

In order to improve this lifeless sea, several young engineers had a flash of inspiration and thought of a good solution......

Today happened to be a day off, and there were men and women on the Gold Coast, as well as a large number of children running and playing.

It's a time of relaxation and rest, and everyone is very relaxed.

Of course, this relaxation is related to the smooth sailing of the "Deep Space", and if something really happens, it is estimated that no one will be in the mood to play.

There is no sun in the Noah, and it relies entirely on lights, but the effect of these special lights is similar to that of the sun, shining warmly on the body.

On top of that, there's a huge waterfall hanging down from the sky!

It was two thousand meters high, making a loud noise in the distance, finally stirring up the lifeless water.

The appearance of a waterfall brings the ocean to life.

Many children screamed and rolled around in the waves, and they were very happy.

That's what the young engineers came up with, and it works...... Not bad indeed!

"It was a diversion of a river on the upper floor, and it flowed directly from the ceiling, with a drop of nearly two thousand meters."

"It's a good idea, with this waterfall, it's much more beautiful here."

Yu Yifeng said with a smile. Seeing so many children, he was also in a good mood.

He pulled Yuriko, avoided the lively area, and went straight to a remote corner to sit down.

He took out a piece of gauze from his bag, spread it, and poured two glasses of red wine himself.

Yuriko, on the other hand, took out some simple breakfast and put them on the gauze one by one.

She looked happy.

"But that seems to be a palliative rather than a cure...... The rest of the place is still calm, there are no waves. It is also the surface splash that fluctuates. ”

"Yes, unless we put a lot of effort into stirring the whole sea with a big machine, we can imitate real tides...... But it doesn't seem to be necessary. Yu Yifeng smiled: "If you were asked to design, what would you do?" ”

Yuriko thought for a moment and said directly: "We can use the residual temperature of the nuclear fusion reactor to heat the ocean and accelerate the process of the water cycle. ”

"It is also possible to modify the seafloor results and use thermodynamics to create certain ocean currents."

Yu Yifeng said with a smile: "If it were me, it would be okay to blow up a small-yield nuclear bomb directly on the bottom of the sea, and it would also cause big waves." ”

"It's really no artistic cell!"

The two of them talked about each other, and for them, this kind of topic has become a matter of course.

After eating this simple and sweet breakfast quickly, Yu Yifeng patted his stomach and put on a pair of sunglasses.

The upper space of this place is greatly opened, and the lights are very high, and it looks like the sun really looks like it.

At this time, Yuriko's preparation was more sufficient, she found a dry spot, spread two bath towels, and then leisurely basked in the "sun".

The lights here are never too toxic, a bit like the winter sun, so there's no need to wear sunscreen. And the temperature has been kept at 2830 degrees Celsius, which is slightly hot, and a piece of clothing is enough.

In that sense, it's more comfortable than any resort on earth......

The two of them just lay quietly, listening to the sound of the waterfall and watching the crowd playing in the distance.

It's a leisurely day......

Yuriko suddenly turned her head and said, "I have a question, why are we looking for the next Earth?" Isn't it good here? For them, Earth wasn't necessarily as comfortable as the current Noah. ”

"In the generations that followed, they had never seen the real earth......

This is a question, Yu Yifeng was stunned for a long time, and replied: "Yes, because of this, I want them to see our former hometown." Maybe it's the obsession of our generation, or maybe it's the obsession of the whole human race......"

"Human ...... After all, it comes down to the earth. ”

"And I've always believed that man-made is not as good as natural ......"

Yuriko was obviously dissatisfied with this answer, and she shook her head: "Even if I find it, it's not really Earth...... It's just a strange planet. ”

"The real earth has been destroyed, and we do not have the power to restore it to ......"

Yu Yifeng was suddenly stuck, he didn't know how to answer, but he didn't think that the human search was wrong.

He even recalls playing in the real sea as a child......

The Earth period, which occupies only a small part of his long life, is so important.

It's a strange emotion, and it's hard to tell why......

Is it a sense of homesickness? Still is...... The fallen leaves of life return to the roots?

"We belong to the earth, maybe it's engraved in our genes......" Yu Yifeng said quietly.

Yuriko smiled again and asked, "Let's not talk about this for now...... What are you going to do when you find a new Earth? Continue to be your chief? It may be a short period of time, a few years may be enough, or it may be a long, long time......"

Yu Yifeng was silent for a long time, he didn't know how to answer.

"Found a new Earth...... Maybe quit this job...... How about we become scientists together? ”

"The rest of the people don't care? That's not good, they can't help you......" Yuriko said with a smile. Hearing this answer, she was in a very good mood.

Yu Yifeng hesitated: "Yes, it doesn't seem to work...... Even if we are already an interstellar civilization, our fundamental goal is still to survive and reproduce. ”

"Our life is quite good, the technology is advanced enough, and we have almost unlimited energy ......"

"There seems to be nothing to worry about."

"In this way, if there is too much comfort, will our progress stop? So...... Interstellar civilizations can also fall into the trap of comfort. ”

He smiled self-deprecatingly: "In the sociology of the universe, this is a process of increasing the entropy of civilization, which is called the theory of increasing entropy of civilization. Hehe...... This concept was also proposed by the alien Black. When we are poor, we can work hard, we can endure hardships and stand hard work, and when we are rich, what is the reason for hard work? ”

Yuriko shook her head, disagreeing with Yu Yifeng's point of view: "What you said is not necessarily right, for many people now, it is no longer the same as before, just to survive and reproduce is enough." ”

"For them, studying science is as important as life...... So non-stop climbing technology should be a good goal. ”

"More precisely...... Explore the unknown! Such a philosophical goal should be more motivated to move forward than survival and reproduction. Our education system and cultural atmosphere are gradually changing in this direction. ”

"yes...... You're right. Yu Yifeng nodded and said, "This is also where our civilization has made progress for more than a hundred years. ”

"But if it becomes more and more difficult to explore science, and even a lifetime of study cannot learn the knowledge of predecessors, then ...... This philosophical goal gradually became ineffective. ”

Yuriko whispered, "This time is still far away...... Isn't it? Walking through the Science Tree is too far away, tens of thousands of times farther away than achieving nuclear fusion......"

The whole topic seemed very strange, but the two of them naturally pondered deeply.

After a long time, Yu Yifeng suddenly realized that he was here for a vacation, not to think about philosophical issues......

He suddenly sat up from the beach, and it was a little boring to just lie like this.

He looked at the crowd of amusementers, then at Yuriko, and suddenly wondered, "Why don't you wear a bikini?" I should wear this kind of place in this kind of place......"

"Or shall we go swimming?"

"Don't!" Her face was slightly red, how could a serious personality like her wear that kind of thing......

Seeing her lying there, dressed very conservatively, Yu Yifeng clearly knew that the bumps hidden in her clothes were exquisite.

He suddenly felt a little moved in his heart, since receiving the perfection element, the girl has become more beautiful, and her physical fitness is better, she can ......

He quickly pulled out an improvised tent from his bag.

"What are you doing with your tent? Why do you bring such a thing? Yuriko asked curiously.

"I want to achieve a genetic goal!"

"What?" She froze. After a few seconds, he understood what Yu Yifeng meant, and his skin was suddenly red with shame. "But in a place like this......"

"Nobody knows!" Yu Yifeng set up the tent, let out a low scream, and dragged her in...... r