Siheyuan: Xu Damao, I want to go to the moon

"System, can the air composition here support a person's survival for 24 hours?"

Xu Damao asked the system guiltily while holding the broom.

Previously, he was very impatient and had not thought about electrolyzing water. He just wanted to add more plants, soil and water to produce oxygen through photosynthesis.

But his math skills were average, so he didn't consider whether so much oxygen could be produced within the time limit.

Fortunately, the campsite already had this function, so he solved the oxygen problem by accident.

In fact, he had an ultimate backup plan in his mind, which was to deal with a system bug, so he never asked the system -

Taking advantage of the fact that the camp can be transformed at will, he divided it into several rooms. One is a plant growing area to produce oxygen, and the other is a 2*2*2 meter independent room to lock people. A hollow pipe is connected in the middle, so that all the oxygen is only used by one person, and he still doesn't believe it is not enough.

As for other spaces, just keep them in a vacuum state.

[Build a primary camp on the moon, which can allow 1 person (non-host) to survive for 24 hours. The construction time limit is 3 days. After completion, you can get 100 points and open the mall. 】

This is the mission requirement for Phase 1. Xu Damao’s ultimate plan does not violate it at all, right?

【1公斤水电解后可以产生1.245立方米氢气，0.623立方米氧气；0.5立方米的雪水约等于500公斤水，可以电解生成622.5立方米氢气，311.5立方米氧气；】

[The total volume of the camp is 260 cubic meters, and the oxygen produced after electrolysis is sufficient, or even excessive. Therefore, when the pressure reaches 1 atmosphere, the electrolysis process will automatically stop;]

[Although high oxygen concentration can maintain breathing needs, it is not good for health;]

[The hydrogen generated by electrolysis will not be absorbed by the human body, but it is unsafe. If the concentration is too high, a little static electricity spark will cause an explosion. Under the premise of maintaining the air pressure, the excess hydrogen and oxygen will be discharged outside the camp. ]

[The best solution still requires 78.1% nitrogen and 20.9% oxygen. ]

[There is enough water vapor, and the carbon dioxide discharged by the host is also enough. What is lacking now is about 200 cubic meters of nitrogen. ]

Xu Damao was disappointed when he heard this. After struggling for a long time, he finally had enough oxygen, but not enough inert gas nitrogen.

But there is only 27 cubic meters of space, how can I get nitrogen? It is too late. There is only one chance to teleport to the moon.

Looking at the water surface still bubbling from electrolysis, Xu Damao's eyes lit up!

Didn’t I think of stealing the oxygen tank before? Now we have enough oxygen, but we can steal the liquid nitrogen tank!

The steel rolling mill where I work already has this thing!

He had seen trucks from the factory transporting it before, right in the logistics warehouse!

When I went out yesterday morning, I should have stopped by the logistics warehouse to get some, and returned the can after use, without anyone noticing - perfect!

It's nothing like the current chaos. A pure white campsite has been turned into a bloody scene like a crime scene. It's really a waste of time...

Xu Damao smiled bitterly and asked while cleaning quickly, "System, how much liquid nitrogen do I need to get?"

【About 0.25 cubic meters, or 250L. 】

"groove--"

Xu Damao cursed inwardly, it’s only 0.25 cubic meters, two liquid nitrogen tanks should be enough, right?

What's the point of all this trouble for me?

Can I only blame myself for not studying well?

Having figured it out, Xu Damao cleaned even faster, preparing to go back to the factory during the day to get a jar and complete the task first.

100 points, mall?

What good stuff will there be?

When the air pressure was almost stable, Xu Damao took out the things in the space and arranged them, just like an indoor botanical garden.

However, he did not clean up the bloodstains on the wall. It would not be clean with just a rag and water, so Xu Damao planned to bring a piece of soap to clean it again tomorrow. And Xu Damao was not interested in taking the dead rabbit home to eat, so he buried it in the soil and waited for it to rot and decompose.

After looking at the results of his work after several hours of cleaning, Xu Damao nodded, silently said "teleport" in his heart, and returned to Earth.

----------------

After a few hours of tossing and turning with Widow Zhang, and a few hours of tossing and turning on the moon, even if Xu Damao had a strong recovery ability, he couldn't stand it anymore. As soon as he touched the bed, he fell into a deep sleep.

Damn, he is too tired. After completing the first stage of the task, he needs to have a good rest for a few days.

But before he had slept for a few hours, Xu Damao was woken up.

"Xu Fangying! Get up!"

Xu Damao opened his eyes in a daze, and found that the silly girl Qin Jingru was standing in front of his window aggressively, with her hands on her hips and yelling at him.

Xu Damao was still in a trance and hadn't come to his senses yet. He looked up at the sky outside and saw that the distant skyline was just slightly bright. The sun was only halfway up. It was only about six or seven o'clock, right?

Are you even going to let me sleep?

What's wrong with you silly bitch?

"Xu Fangying! Why did you vent your anger on Aunt Zhang? And you beat her until she screamed!"

"Every wrong has its perpetrator, if you're angry, come to me!"

Xu Damao finally understood what she meant. This silly girl eavesdropped last night and thought he was beating Widow Zhang?

Was she the big black rat last night?

You are 11 years old. Hasn’t your family told you these things?

Isn’t it said that children in the countryside mature early?

Before Xu Damao could explain, Qin Jingru angrily lifted his quilt and said, "Get up and talk."

"what!"

Then, Qin Jingru hurriedly covered her eyes and ran out.

Xu Damao was left in a daze, confused.

When I looked at myself again, I finally understood.

I was so tired when I got home last night that I fell asleep immediately and forgot to put on my clothes.

And just now in the dream, I was in and out of Widow Zhang, so -

It’s over, Qin Jingru has seen me naked, I’m not clean anymore!

Just kidding, Xu Damao has nothing to be embarrassed about. No matter how big the matter is, it was Qin Jingru who exposed it herself. It has nothing to do with me!

He ignored Qin Jingru's shouting outside, and slowly picked up the clothes under the window and put them on.

Fortunately, it was automatically cleaned during the transmission, so the blood and stains on my body were also removed completely, otherwise it would have caused even more misunderstanding.

Rubbing his eyes, Xu Damao lit a cigarette and walked out the door.

This is the side room of the brigade headquarters. Outside is the main room, where the team holds meetings and discusses matters. There is a large square table and several benches. We also had dinner here yesterday. On the walls inside are portraits of great men and various slogans.

Qin Jingru was squatting outside the main room, on the flat cement ground where the movie was shown yesterday. She looked like she was drawing a circle and cursing you.

Xu Damao leaned against the door frame of the main room, took a puff of cigarette to refresh himself, and then greeted everyone.

"Nizi, are you sick? What are you doing so early in the morning?"

Qin Jingru turned around angrily, her face flushed, but she shouted at Xu Damao fiercely -

"You-you are being a hooligan so early in the morning!"

"I'll tell the village chief and the secretary and have them beat you up!"

Looking at her like this, Xu Damao's bad temper just now disappeared. He didn't expect Qin Jingru to be so - silly and cute when she was a child?

He decided to tease the little girl some more.

"Who is being naughty? I was sleeping soundly, you broke in by yourself, right?"

"You were the one who lifted the quilt, weren't you? You lifted a man's quilt, and I said you were being a hooligan!"

Xu Damao spread his hands, indicating that it was not his fault.

After Qin Jingru was touched by him, her not-so-bright little brain froze for a moment. It took her a long time to realize that it was her fault.

"But you're still not wearing any clothes! You still... still..." She blushed so much that she didn't know what to say next. She wanted to come here early in the morning to avenge Aunt Zhang, but ended up seeing such... such an embarrassing scene.

"I slept in my room without clothes on - is that against the law?"

"As a healthy adult male, I have some sexual reactions in the morning - isn't that normal?"

After listening to Xu Damao's explanation, Qin Jingru's mind became even more confused. Her face became even redder, and white smoke rose above her head.

This girl, could it be that she has burned out her brain because she couldn't figure it out?