Annihilation of the solar system

It was noon on the earth, and Su Yang drove the lunar rover back. Everyone took off their helmets in the lunar rover, had a simple meal of self-heating compressed food, and continued to work without much rest.

Su Yang drove the lunar rover and dragged a large bell-shaped equipment back to the unit at walking speed. Li Linjie and his teammates had completed the production of all foundation piles.

Subsequently, Su Yang directed two cranes to lift the bell-shaped equipment from the small trailer and slowly placed it on the platform. Because the two cranes needed to be synchronized and coordinated, and the bell had to be

Align the screw holes of the shaped equipment with the reserved bolts on the platform. This process proceeds very slowly.

Finally, they successfully installed the bell-shaped equipment on the platform, and finally spent another hour installing a white protective cover on it. Now it looks exactly the same as the other four units.

With the assistance of Li Linjie and other friends, Su Yang connected a set of cables reserved on the original unit to the newly installed unit. The day's work was completed, and everyone looked at the fruits of their labor and felt in their hearts.

A sense of accomplishment arose spontaneously, and everyone happily packed up the construction machinery and equipment and prepared to return home.

Qiu Yusheng jumped up to Su Yang under the gravity of the moon and asked:

"Team leader, you can tell us now what the gadget we installed today is."

Su Yang's face was blocked by the shading lenses of the space helmet, so he couldn't see his expression. He just said:

"First finish the inventory of equipment and instruments. We will quickly get in the car and return to the base. We will tell you in the car."

Qiu Yusheng was a little unwilling and asked:

"The work is all done, why can't you tell us now?"

Su Yang's tone became serious, and he said without stopping what he was doing:

"You are required to be quick and cautious when working outdoors. In addition to saving spacesuit power and life support supplies, do you know what the most important reason is?"

Qiu Yusheng shook his head. Others were also curious.

Su Yang put down the tools in his hands, made a shape the size of a washbasin with his hand and said:

"On Earth, when such a large meteorite or space debris falls into the Earth's atmosphere at the speed of the second universe or faster, it is just a gorgeous meteor in the eyes of many people. People can look at it

Make a wish and take a picture of her.

But here, the moon has no atmosphere. A fragment the size of a fingernail can directly reach the moon surface, and the energy it carries can easily penetrate your space suit and body. Even if it does not cause fatal injuries to you, the place we are now in

The ambient temperature is 92 degrees, close to vacuum. Once the space suit leaks, the probability of survival is close to 0."

Everyone heard Su Yang's words through the radio and couldn't help but feel a chill on their backs. There were no more problems and they speeded up packing up the equipment.

On the way back in the car, no one said a word. Captain Su Yang, who usually had a smiling face, showed a rare seriousness. Even Qiu Yusheng did not dare to ask any more questions. At this time, Su Yang returned to his usual state.

He said in a calm tone:

"What? Were you frightened by what I just said?"

"No. This is what we did on the moon." Qiu Yusheng said angrily.

"Don't worry too much. I just said that that situation is an extremely small probability event. It is almost only a theoretical possibility. You see the earth has such a dense atmosphere. In the past few years, there was a city like the furry bear in the north.

It was hit by a meteorite. But we should be quick and cautious when performing tasks outdoors."

Su Yang explained to everyone like a big brother. This relaxed the atmosphere a lot, and Qiu Yusheng quickly seized the opportunity to ask:

"Team leader, can you tell us what the equipment we installed today does?"

Su Yang did not answer his question directly. He looked at the position on the satellite positioning, then pressed the button to talk to the base and said:

"Base, I am Su Yang from the seventh team. We have reached a safe distance and can test the power on."

"Received, understood."

Then he said to everyone:

"What you just installed is a highly enriched uranium power generation reactor modified from a nuclear submarine reactor. The unit we just went to provides 2/3 of the electrical energy for the base. There is a similar unit in the other direction of the base, which can also provide the base with

2/3 of the electricity. If the base is to be expanded, the first step is to increase the energy supply. Without electricity, everything is in vain."

Everyone in the car looked at each other, Qiu Yusheng was even more surprised:

"You mean, that thing we just took off the cargo landing bay, dragged it around like a supermarket shopping cart, and finally lifted it up with two cranes was actually a nuclear warhead?"

Li Linjie looked at the desolate moon sea outside the window and said calmly:

"It's not as scary as you said. It's just that the uranium enrichment is about the same and there are no detonating components."

Su Yang nodded and said:

"It is true, but it also has certain dangers. If there is a violent collision, the core may melt down and cause a critical explosion. I didn't tell you what it is before, just to let you concentrate on your work.

You see, haven't you done a very good job? You have to know that we came here hundreds of thousands of kilometers away to complete this kind of work. The entire human civilization is pulling chestnuts from the fire in pursuit of the glimmer of hope of survival.

"

Li Linjie took a breath and felt the heavy burden on his shoulders. He was also very fortunate to have such a professional and careful big brother to lead them to adapt to such an extreme and great situation.

Work.

"Aren't fusion reactors already in use on the earth? When we went to space on the Fuyao system, the fusion reactor was used there. Why do we still use this low-efficiency, high-risk multi-unit fission reactor here?" Li Linjie

asked in confusion.

Su Yang drove the lunar rover carefully:

"When our Guanghan Palace project started, the fusion reactor had just begun experimental operation. Have you noticed that the technology of the entire lunar base is like the technology of the earth ten years ago, and the entire shape looks like the punk style in the movie

?”

This sentence aroused Li Linjie's curiosity, because he noticed this situation as soon as he stepped off the shuttle:

"Yeah, I also noticed that the equipment and pipes here have a slight sense of the times. I thought it was made like this on purpose."

Su Yang shook his head and said with a chuckle:

"The designers of the Guanghan Palace Project are not as romantic as movie directors. What they want is only two words - reliability. All the equipment and technologies you can see are not the most cutting-edge advanced technologies, but the latest

Proven and reliable technology.

Because we have no fault tolerance here, once a catastrophic failure occurs, not only the people on the entire lunar base will be in dire straits. Even the entire earth defense plan will be shaken."

Qiu Yusheng looked enlightened:

"Oh, I understand. Reliability and stability are the most important attributes of equipment."

Su Yang continued:

"At least for life support measures, this is the case. However, the deuterium-helium 3 simulated star fusion reactor suitable for our moon is already in experimental operation.

Soon we will also use fusion reactors to provide electrical energy, and fission reactors will then become backup energy sources. Moreover, the four high-energy laser emission systems we will build in the future will also require a huge amount of energy. I think only fusion reactors can provide such high energy.

"

"Construction Team 7, I am the base. The fission host you installed has been successfully turned on and the power has been connected to the grid. Thank you." The voice of the base came from the radio.

"Roger, I understand." Su Yang replied calmly.

The team members behind him cheered, wearing bulky space suits, high-fiving each other and shaking hands, celebrating the success of their first mission.