Su Tong stood at the door of the factory with an old copycat version of the military backpack on his back, looked at the factory where he had worked for thirteen years, was silent for a long time, and then silently turned around and left. A few workers who came to see Su Tong off behind looked at Su Tong's somewhat desolate back, and couldn't help but sigh for him in their hearts, this world

Walking on the mountain and country roads, Su Tong's psychology was full of helplessness. This thief really doesn't give people a way to live. Su Tong is a standard post-80s generation, and like many migrant workers, he came out of his hometown in Guangxi to work in the south after graduating from high school. Always complaining about his bad luck, he worked in a hardware factory for many years, and until now, he is still a three-no person (no house, no car, no ticket). Of course, there is no wife. So, I resolutely picked up my backpack and planned to go home to repair the earth.

Jumping off the bus and looking at the midday sun, Su Tong picked up his backpack and looked at the weather again. Well, there are no clouds, and you can rush home for dinner, Su Tong, who was eager to return home, picked up his backpack and rushed home with two feet.

Walking on the road, it suddenly became dark. Su Tong saw that it was about to rain, and remembered that there was a cave in front of him to shelter from the rain. Hurriedly ran forward, but before he could reach the entrance of the cave, a bolt of lightning fell from the sky and slashed less than two meters away from Su Tong. If someone is nearby, you will find that the person has disappeared in the blink of an eye, but there is a large crater more than 100 meters wide and hundreds of meters deep where the lightning struck. For a while, the locals had different opinions, and then under the explanation of the changes in the crust of the brick family, it gradually subsided. It's just that no one has noticed that there is a person who has disappeared from this world.

Su Tong slowly opened his eyes and found himself lying on a bed that seemed to be metal, surrounded by a soft yellow light. Su Tong got up, frightened in his heart, and shouted loudly: "Is there anyone!" Is anyone there! ”

"Earthling, are you awake?" A metallic voice suddenly sounded in the room, and a middle-aged man with a pitch-black body slowly walked in front of Su Tong. "Hello! Earthling, I'm a traveler from the planet Gami, my name is Amy"

Su Tong swallowed his saliva, and his face was sallow (frightened). He said, "Who are you?" Why did you get me here? I'm just a wage earner, I don't have any money, if you want money, you should go to the big boss. ”

"Human, you're mistaken. You listen to me slowly" As Amy slowly spoke, Su Tong gradually understood that Amy was a traveler from a distant galaxy who came to Earth two hundred years ago. He has no contact with humans, silently observing the development and evolution of humans on Earth, collecting samples and materials. Amy, who completed her mission today, started the spaceship and was about to leave, probably because she hadn't piloted the spaceship for a long time (she hadn't driven it for two hundred years), and Amy found that a poor human was "gently" rubbed by the energy that erupted when the spacecraft started. Really, Amy swears, just rubbed it "gently". No, the head is still intact.

No, Amy, who found out that she was in trouble, hurriedly put Su Tong in the repair warehouse. It took a while to "repair" Su Tong.

"Illegal driving kills people!" Su Tong complained in his heart, why is it always the person who drives the No. 11 bus that is injured? But this uncle is really pure in heart, if he had changed to another unscrupulous driver, he would have smeared oil on the soles of his feet in that kind of place where he couldn't go to the village and couldn't go to the store.

Thinking of this, Su Tong's mood gradually calmed down. Forget it, anyway, there are no parts missing in the whole body, we are a big man, and it is not good to worry about interstellar friends, just let him send us back.

"Ah Amy, since you're unintentional, forget it." Su Tong waved his hand generously: "You just send me back quickly, otherwise my mother will be worried after a long time." ”

After waiting for a while and not seeing Amy answer, Su Tong looked up at Amy. I saw Amy babble and say, "I'm really sorry, you may, you may not be able to go back." ”

"What?" Su Tong jumped up and yelled with a hideous face: "What the hell is going on? Why can't I go back? ”

"You listen to me, it's like this." Amy hurriedly took two steps back, and Ai said, "Our spaceship has just started super acceleration and leaped over the plane plane."

"Say I can understand it." Su Tong said viciously, so in Amy's stumbling words, Su Tong finally understood. Due to the ship's super acceleration, Amy accidentally traveled through space and is now in another parallel space on Earth. And most of the spaceship's energy has been used, and the remaining energy is no longer enough to make the next space jump. All in all, Su Tong can't go back.

Su Tong sat on the bed as if all the strength of his body had been drained, "What about you?" Can't you go back too? ”

"I can go back in the ship's own emergency life pod," Amy said

"Then can't I sit," Su Tong asked as he glared at Amy

"No," Amy's head shook like a wavebreaker, "although your body has been repaired and transformed by the repair chamber, and is much stronger than an ordinary earthling, it is still not enough to support the powerful squeeze when crossing the plane." If you come hard, the strong pressure will squeeze you into a patty. ”

"But you can rest assured that this space is parallel to your original space, and history is going the same way. You won't feel strange at all. Before I go, I will land this spacecraft on the moon and build a base with the spacecraft as the core. Although I can't leave our planet's advanced technology to you due to the laws of our planet, I can give you a copy of all the information I have collected on Earth over the past two hundred years. Build a short-range teleportation device and you'll be able to travel freely between the Earth and the Moon, and you'll be able to eat and drink spicy food in the future. Amy slapped her chest thumping, looking like a good buddy talking about righteousness.

"Really?" Su Tong asked suspiciously.

"Of course it's true, we Gammians never lie." Amy's face was straight.

"Is there another me in this world?"

"No, because the current earth time is the fourteenth year of the Republic of China, that is, 1935 AD," Amy said with certainty

"What, 1935?" A tenor pitch of 120 decibels rang out instantly!

Half a month later, a base covering an area of more than 10 square kilometers was built on the surface of the moon. , lunar base. With a brilliant arc of light, Amy's emergency rescue pod disappeared into space.

Su Tong's face was solemn, looking at the space through the reinforced glass shield, Su Tong's heart was full of mixed feelings, and a sense of loneliness couldn't help but strike. For Amy, Su Tong's mood is complicated. On the one hand, he hated him for separating himself from his family forever, but on the other hand, he had done so many things for himself.

Suppressing his complicated feelings, Su Tong sat in front of the mileage control computer in the hall and checked the information about the moon left by Amy.

The moon is extremely rich in mineral resources, and the 17 most common elements on the earth abound on the moon. Taking iron as an example, the 5 centimeters of sand on the surface of the moon alone contains hundreds of millions of tons of iron, while the entire lunar surface has an average of 10 meters of sand. Iron on the surface of the moon is not only abundant, but also easy to dig and smelt. It is reported that the iron on the moon is mainly iron oxide, as long as oxygen and iron are separated; In addition, scientists have worked out ways to create cement and glass from lunar soil and rocks. On the surface of the moon, aluminum is also abundant.

The lunar soil is also rich in helium-3, and helium fusion using deuterium and helium-3 can be used as an energy source for nuclear power plants, which does not produce neutrons, is safe and pollution-free, and is an easily controlled nuclear fusion, which can not only be used in terrestrial nuclear power plants, but is also particularly suitable for astronautics. It is reported that the content of helium-3 in lunar soil is estimated at 715,000 tons. For every ton of helium-3 extracted from lunar soil, 6,300 tons of hydrogen, 70 tons of nitrogen and 1,600 tons of carbon can be obtained, and 1 ton of helium-3 produces enough electricity for all mankind for one year. Judging from the current analysis, due to the large reserves of helium-3 on the moon, it is undoubtedly a relief for the earth, which is relatively short of energy in the future. Many space powers have taken the acquisition of helium-3 as one of the important purposes of developing the moon.

There are 22 major lunar seas on the surface of the moon, and the remaining 19 lunar seas are distributed on the front side of the moon, except for the East China Sea, the Moskva Sea and the Zhihai Sea, which are located on the far side of the moon. There are a large number of moon sea basalts in these moon seas, and the volume of basalt filled in the 22 seas is about 1010 km3, and the moon sea basalt is rich in titanium, iron and other resources. If it is assumed that the ilmenite content in the Yuehai basalt is 8%, or the titanium dioxide content is 4.2%, then the total ilmenite resources in the Yuehai basalt are about 1.3×10^15~1.9×10^15.

Crippite is one of the three major rock types in the lunar highlands, named for its richness in potassium, rare earth elements, and phosphorus. Crip rocks are widely distributed on the Moon. The kripping rocks of the thorium and uranium-rich aeolian zone are overlain by the later lunar sea basalts, which are mixed and form high foci and uranium materials, the thickness of which is estimated to be 10~20 km. The total REE resources in the Crip Rock in the Storm Ocean Zone are about 22.5 billion to 45 billion tonnes. The abundant thorium and uranium stored in the krip rock are also one of the important mineral resources for human development and utilization of lunar resources in the future.

In addition, the moon is also rich in chromium, nickel, sodium, magnesium, silicon, copper and other metal mineral resources.

Seeing this, Su Tong let out a long sigh of relief. Since the moon has so many resources, it will have the power to protect itself in this war-torn Republic of China era.

Su Tong turned his head and looked at the three people standing in front of him like pacesetters, they were the cyborg warriors that Amy had made with the last three remaining smart chips. Su Tong, a big man who looked like Zhang Fei, was named Tie Niu. The ordinary appearance is called Ma Jun, and the rest of the thin and tall ones are called Niu Ben.

"Niu Ben, how is the construction of the base doing?"

"Report to the chief, the main construction of the base has been basically completed, and the solar power station has been built. The light weapons production line is ready to start, and the conveyor will be installed tomorrow. Niu Ben replied with a standard military salute.

"Well, after Tie Niu and Ma Jun and I leave, you stay at the base and keep in touch with us at any time."

"Yes, sir."

Looking at the three poker faces with no expressions, Su Tong secretly complained that Amy had cut corners when she designed the chip program, and no one had a surname