Doomsday: Humanity shrinks 100 times

Chapter 78 The First Step in a New Era

Finally, after working hard for almost a whole day, Lu Yuning finally made this seemingly simple device.

At this time, his head was aching slightly due to overdrawing his supernatural powers, but it still couldn't hide the excitement in his heart.

"It's done!" Lu Yuning looked at the sophisticated device in front of him with some excitement.

Everyone gathered around and looked at the thing in front of them with some curiosity.

"How to use it?" Zou Yunxin asked first.

"We need to test the airtightness first. If possible, we also need to make the water inlet and outlet pipes, and then we can officially put it into use," said Zhang Xinyue.

The entire device is made of high-density polyethylene material, which is resistant to high temperatures, has high hardness and good pressure resistance.

The small aluminum sheet used for heating had been put in by Lu Yuning in advance. Since there was no placement opening, he had to put it in in advance.

As for water, you can pour it in through the water inlet.

Everyone looked at Zou Yunxin nervously as he put his hand on the steam pump.

As his special ability was activated, the sound of water in the device beginning to boil could be faintly heard.

Lu Yuning opened the exhaust valve of the vacuum container.

Taking into account the problem of steam burns, the exhaust port is made very far away.

After a while, water vapor was gushing out of the exhaust port.

At this point the air in the container has been evacuated and replaced by water vapor.

The container is getting a little hot.

Unlike boiling water normally, boiling water for cooking uses less water and does not require long-term heating, so more heat is retained inside the container.

But now it is different. Since heating takes a long time, the heat in the container gradually diffuses outwards.

This brings us to the question of the heat tolerance of a shrunken person.

When Zou Yunxin activated his special ability, he himself was not afraid of the heat, but others were not.

Lu Yuning was gradually feeling uncomfortable as she stood next to the container.

Zhang Qian hurried over and activated her special ability to insulate the entire container.

Lu Yuning nodded to express his gratitude.

As everyone built technological facilities, Lu Yuning felt more and more that her ability was powerful.

Most other people's abilities are real-time. The effect will appear when the ability is activated, and the effect will disappear when the ability is stopped.

However, her ability is persistent and more like a change in the state of an object.

Lu Yuning waited for a while, communicated with Zhang Xinyue, and then closed the air valve.

At this time, heating should be stopped and waiting should be done to cool down. However, everyone still needs to check whether the air tightness of the device is up to standard, so heating cannot be stopped yet.

After a while, the container appears unresponsive.

Despite this, everyone was extremely happy.

Zhang Xinyue explained to everyone that at this time, since the valves are closed, the internal pressure gradually increases, and no water vapor can be seen outside, which proves that the air tightness of the device meets the standards.

This is the most basic step, which means that the subsequent cooling and vacuum-making steps can be carried out.

At Zhang Xinyue's signal, Zou Yunxin moved his hand away and stopped heating.

The device slowly cooled down.

Seeing that the time was almost right, Lu Yuning walked forward and prepared to open the air intake valve.

"Come on, let's take the first step into a new era." Lu Yuning patted the steam water pump in front of him and murmured.

This steam device condenses almost all their abilities and wisdom.

Opening the valve is the last step in the installation process.

Success also means that everyone has officially entered the steam age.

Lu Yuning was naturally a little excited.

He placed his hand on the valve and applied a little force.

But his face changed and then he was a little dumbfounded.

The valve doesn't budge!
No matter how hard he tried, the valve wouldn't turn. "...That's it, forget about this."

Lu Yuning looked at everyone helplessly.

"Can't open it?" Zou Yunxin ran over in disbelief.

He grabbed the valve and twisted it hard, but his hand could hardly move at all.

Then he gradually increased his strength, and finally his face turned red, but the valve was still as if welded shut.

Seeing that he was still trying to believe it, Lu Yuning had no choice but to reach out and stop him: "Don't try, we can't open it. In the end, we forgot a question."

Zhang Xinyue had already understood it.

Although the two filtered out many problems, they still failed to consider one issue in this final step.

When there is a pressure difference, the obstruction in the valve will stick to the pipe wall due to the pressure relationship, resulting in a sharp increase in friction, so the valve cannot be operated at all under high pressure.

"Then it was all in vain?"

"That's not the case. Don't forget that I still have my abilities. The worst that can happen is that I can crush the obstruction inside the valve. But then it will become a disposable thing. Every time I open the valve to let in water, I have to destroy the valve." Lu Yuning said.

Everyone breathed a sigh of relief.

For them, as long as it wasn't done in vain, it was fine. This thing had cost Lu Yuning and Zhang Xinyue a lot of effort.

However, Lu Yuning was still a little depressed. Although the device could still be operated, in the end, it still needed to be destroyed.

It's like working hard to build a car, but then having to take the wheels off before parking it.

"It's okay, we can improve it later." Zhang Xinyue said, as if she could see his emotions.

Lu Yuning came back to his senses and nodded, "Yes, I know."

"What should we do now?"

"Let the air out and lower the pressure first, it will break easily if left for a long time."

After Lu Yuning finished speaking, he walked forward and put his hand on the valve.

Then he made a gesture, and everyone understood and stayed away from the air intake.

The pressure generated by this device is no joke. Given their current body size, if they were sucked in by the air pressure, they would basically be doomed.

Seeing that everyone had reached a safe place, Lu Yuning did not hesitate. With a thought, he directly broke the obstruction in the valve.

"Hi~"

A strong sound of air intake was heard and lasted for a long time before stopping.

It's like the first steam turbine turning during the Industrial Revolution.

This simple air intake and exhaust represents a great leap forward in everyone's technological capabilities!

Perhaps this is also the first steam device after humans are reduced in size, Lu Yuning thought to himself.

Although this final step across the ages was not very good-looking, it was still a big step forward and was worth getting excited about.

"Success!" Lu Yuning announced.

Everyone cheered for a long time.

Making this steam pump was extremely difficult, and even at the last step there were some problems.

However, every difficulty overcome during the construction process is the foundation for future technological advancement.

"Next, make the water tank and connect the water pipe, then we can try storing water," Wu Xiao asked.

"Well, it's not difficult to build a water tank, but the workload is relatively large. However, I haven't decided where to build it yet. The main problem is that there is a problem at the moment." Lu Yuning nodded and said.

Everyone looked at him without saying a word, waiting for him to continue speaking.

Lu Yuning paused and continued, "It's mainly a matter of secrecy. Before, we could do whatever was convenient, but now, with the existence of organizations like Starfire, we still have to consider the safety of the shelter."

"To ensure water storage capacity, its volume cannot be too small, otherwise the purpose of the water tank will be lost. So if it is built outside, concealment will be a big problem. Anyone exploring here may find this huge thing."

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(End of this chapter)