Doomsday: Humanity shrinks 100 times

Chapter 157 Indoor Lighting
When Lu Yuning heard Zhang Xinyue's story about the near-fire incident, she was still frightened.

Unlike water, water can be used in small quantities, and even if there is a problem of bacteria, there is no need to worry about safety hazards during use.

However, it is difficult to control the size of the flame. It either cannot be ignited or it will continue to burn at a constant size.

Even if the flame is controlled by the amount of pine oil, the flame will still be about the same size as a person's height after it is finally ignited.

Moreover, unlike the previous aluminum sheets, the highest temperature of the aluminum sheets after heating did not exceed 200 degrees Celsius, and people could still barely get close to it, but the lowest temperature of the flame was 1000 degrees Celsius.

If a fire occurs, it is basically an irresistible disaster, so it is not easy to make it into indoor lighting.

In addition, since fire has no fixed shape, Zhang Qian's ability cannot isolate the heat.

"So how was the fire put out in the end?" Lu Yuning asked curiously.

"This oil lamp cannot be extinguished with water, it can only be extinguished by isolating it from oxygen, so we first tried to bury it with soil."

"Using Old Wu's spatial ability to bury the soil?"

Zhang Xinyue nodded: "That's right, but I soon discovered that it didn't work. There was too little soil, and even the soil with pine oil on it would spark..."

"What's the end?"

"In the end, Wu Xiao had no choice but to take the risk and put the entire oil lamp into the space."

"Is his space a vacuum?" Lu Yuning asked, already having a rough idea of what was going on.

Zhang Xinyue patted her chest and said, still a little frightened, "Yes, the oil lamp went out when I put it in and took it out again."

Lu Yuning nodded and had a general understanding of the ignition experiment. In short, after having the ability to make fire, one must guard against fire hazards.

"How far have you come now? We still have some time today, why don't we try to finish it before dark?" Lu Yuning suggested after looking at the sky.

Liu Rui was the first to speak when he heard this: "Okay, then I'll go call them all over."

Then he went to find someone in a hurry, looking very excited.

……

A group of people gathered in the square under the shelter. Except for Zhang Qian who was still busy, everyone else ran out to watch the fun.

A simple little device appeared in front of Lu Yuning.

The main body of the container is made of bamboo. Judging from the uneven appearance of its opening, it must have been processed by Xu Qi's chipmunk.

The overall height is about one person, which is about two centimeters, and the diameter is about four centimeters. It is covered with a layer of square aluminum sheet, which should have been cut by them themselves.

The oil lamp's fuse passes through a small hole in the middle of the aluminum sheet, with one end immersed in the pine oil in the bamboo tube below.

Such a small device is actually not easy to make.

Not to mention the preparation of pine oil, just the processing of the aluminum sheet used for fire prevention above has already surprised Lu Yuning.

Zhang Xinyue seemed to understand Lu Yuning's thoughts and explained, "This piece of aluminum was something Xu Ting could barely handle after her abilities improved, but even so, it still took quite a while."

Lu Yuning showed an expression of "I see," and then walked over to study it.

The oil lamp device is actually almost done, the only problem now is fire control.

"What we thought of was to move the oil lamp directly into the shelter. This way it would be easier to handle. We just need to dig out a space, build a protective layer around it, and leave a hole for air to come in. Once we block the air inlet, we can extinguish the oil lamp." Zhang Xinyue expressed her previous idea.

Lu Yuning thought for a moment and said, "As long as we take good fire prevention measures, there shouldn't be any problems. There's also the issue of heat. The shelter is relatively small and could easily become a furnace."

"Well, so we need to open a heat dissipation hole at the top. The hot air will basically escape from the top. Of course, the pipes must also be properly prepared. Only one light outlet is required inside the shelter."

Lu Yuning thought about it and didn't seem to see any problem: "Then you didn't figure it out before, because you had other concerns?"

Zhang Xinyue gave a bitter laugh. "No, it's mainly because Xu Ting's ability is completely inferior to yours when it comes to this kind of excavation and construction work. We roughly calculated that it would take three to five days just to dig the hole, and we also have to consider the small settings of lighting and extinguishing the fire. In the end, the time spent is completely disproportionate to the benefits, so we finally gave up."

Lu Yuning suddenly understood.

“Now that we have a plan, let’s get started.”

After making up his mind, Lu Yuning did not delay and prepared to start making the indoor light source immediately.

I have to say, even though he had been lying down for ten days and had no feeling, Lu Yuning still felt like he was rusty all over.

In comparison, he prefers the feeling of being busy.

Lu Yuning's mind moved slightly, and the familiar feeling of controlling supernatural powers came with it. Compared with before, his ability seemed to be much stronger. I wonder if it is related to the second ability he awakened.

Speaking of this second ability, he could clearly sense the existence of this ability after waking up.

It was an indescribable feeling, as if there were two options in his mind, and he could control which ability he would use. This was also why he was certain after waking up that the ability to freeze a person was the second superpower he had awakened.

But unfortunately, he couldn't use this ability after waking up.

He tried almost all the methods and even began to doubt whether they were only effective on living things, so he caught a small ant to experiment. After several attempts, the ant was still alive and kicking.

In the end, Lu Yuning had to give up. It seemed that this ability could not be used casually. He thought about it and it might have something to do with the split consciousness deep in his mind.

But it doesn't matter if he can't use it. What is destined to be yours will come to you eventually, and what is not destined to be yours will not come to you by force. Lu Yuning accepted it calmly. Anyway, using this ability would make him dizzy for ten days, which was really a waste of time.

With Lu Yuning's use of his special abilities, the envisioned space was quickly dug out.

The excavation site is inside the kitchen, so the kitchen has the best lighting and is sufficient for use. It is obviously unrealistic to put a light source in every room before they get electricity.

After the space is dug out, all you have to do is to insulate this space with a layer of stone material, make a ventilation hole on the top, and then install a switch device.

Finally, leave a light hole and insert glass.

However, Zhang Qian has to be responsible for turning on the oil lamp. Like the kitchen facilities, it cannot be automated.

Zhang Qian said it didn't matter. She had to cook anyway, so it was just a matter of convenience.

When the light source was finally completed, it was almost completely dark and the shelter was already pitch black.

Everyone stood excitedly in front of the light source, waiting for Zhang Qian to light the oil lamp.

As Zhang Qian released the aluminum ignition block that had been placed in advance for insulation, a small flame slowly lit up on the wick.

The shelter was instantly illuminated.

(End of this chapter)