An Ruosu continued, "But the ability of those people is not very strong, the food produced every day is limited, and it must be distributed, black water is the worst food, sterilization is second, and the best is of course cooked food."

"However, only the members of the top three layers can eat only cooked food every day; For the middle layer, you can eat one day a week, and replace it with sterilized food at other times; And the lower layers, almost only rely on black water to feed their hunger, and occasionally eat some sterilized food. ”

Everyone seemed to listen to the story, listening to An Ruosu talk about the Qingbei.

Relying on black water like traditional Chinese medicine every day to satisfy hunger, this is even more uncomfortable than asking Yu Yuan to supply nutrients.

The little fat man can't stay with everyone now, otherwise this guy will probably cross his waist and be proud for a while.

Chen Du pondered carefully for a while, and roughly grasped some information.

In the environment of the last days, it is not easy for Qingbei to be able to do this, and their biggest advantage is that there are many people, so they can divide the various divisions of labor very finely.

Like what.

There are three ways to cook rice.

On Qiming's side, the ability to awaken is not bad, so there is this situation.

In fact, think about it, whether it is Dong Junwei or Chen Du, or Tang Jing and Wei Dalei, without any of them, it is impossible for everyone to live like this now.

It has to be said that luck plays a big role.

Eaten.

Dong Junwei took An Ruosu and the others to the side of the room, pointed to a nameplate on the wall, and said

"You can come to defect, of course we welcome it, but although Qiming is not as big as Qingbei, so strict, some rules still have to be mentioned, this is our charter, as for other staffing and positions, I believe Zhao Xiaoyan has already told you just now."

"Uh-huh." The two nodded heavily.

"In that case."

Dong Junwei said, "As the chief decision-making officer of Qiming, I officially approve you to join the organization, and I hope that you will love each other in the future, help each other in the same boat, and do your best for Qiming and the rejuvenation of all mankind." ”

An Ruosu and Yang Li nodded excitedly, as if they had found some long-awaited feeling again.

……

He Ying walked up to Chen Du's side and said, "Is it really good to let them join so soon?" ”

"They are different from Lu Shanshan, and they finally came all the way to defect, which is too twisting and pinching, but it hurts people's enthusiasm." Chen Duan paused and said; "Moreover, Tang Jing said that she can guarantee that there will be no problems, and looking at her appearance, it seems that she is in a hurry to use these two people."

"What's her bad idea again?" He Ying asked with a smile.

"It's not a bad idea." Chen Du smiled.

"In order to stimulate Cao Zishan's potential, who locked him in a room full of farts by Xue Xu, and forced him to demolish the house with his bare hands?" He Ying gave him a blank look.

Chen Du touched his forehead and said with a dry smile, "But, it does work, doesn't it?" ”

Tang Jing does often do unexpected things, and sometimes the methods are very radical and embarrassing.

But the problem is, with all those means, the end result is excellent.

For example, Cao Zishan, although he was smoked almost to death that time, it was precisely that time that he was finally able to break through his limit to within 2 meters.

This also allows the high turret to be used to its fullest potential.

He Ying sighed, "I hope these two people are really here to take refuge, otherwise, they are estimated to not live for a few days under Tang Jing." ”

……

Chen Du's guess was confirmed the next day.

Tang Jing seemed to have made arrangements for An Ruosu as soon as she knew about her ability.

"Next, allow me to show you a new type of power machinery, which will also be the equipment that we Qiming relies on the most in the short to medium term."

At the meeting the next day, Tang Jing displayed what she had drawn and written overnight in front of everyone.

That's what a machine looks like.

Roulettes, tubes, linkages, pistons......

Although Chen Du knew some parts, they were a little strange together.

After studying it for a while, he said with some uncertainty, "Could this be ...... Motor? ”

"That's half right." Tang Jing smiled, "To be precise, it's called Stirling Engine." ”

The three words of engine shocked everyone present and their jaws dropped.

Not long ago, the clockwork mechanism had already made everyone quite sigh.

Many things, the principle is very simple to know, but to really use it in practice, it is not the same thing at all.

For example, using a clockwork to drive the elevator, the principle is very simple, and even Wei Dalei can say the truth.

However, when it comes to actually building the real thing, there are still a lot of problems, and often the very small size difference of one component can paralyze the whole set of equipment.

Chen Du was clear.

Although all the parts of the elevator were built by him, if it weren't for Tang Jing, it would be impossible for him to really make the machine run for another year, not to mention anything else, just the governor on the cable, he still didn't fully understand.

And now.

Motor?

Isn't this a bit of a big step?

Dong Junwei, Chen Wei and others at least know the Stirling engine, the textbooks of the commercial market, the theoretical aspect is less, more focused on practical and divergent thinking, in the chapter of physical thermodynamics, the similarities and differences of several engines are also compared, internal combustion engine, external combustion engine, advantages and disadvantages, are involved.

But if you learn a little bit from the textbook, you can build an engine by yourself, no one will believe it.

The Stirling engine is a typical external combustion engine, and in terms of structure, it is still a relatively simple one.

But obviously, neither Chen Du nor Dong Junwei could imagine how to build a Stirling engine by themselves.

"Is our capacity enough now?"

Although he knew that Tang Jing would be sure if he said such a thing, Chen Duan couldn't help but want to confirm it.

"With our previous capabilities, it was not difficult to build an engine, but because of material problems, there were two aspects that could not be met for the time being."

"What two?"

"The first is the working fluid, the Stirling engine is to use the expansion and contraction of the gas to complete the conversion of kinetic energy, the most ideal working fluid gas, should be hydrogen and helium, obviously we can not meet, but in today's scale, directly with air replacement, can barely meet the practical requirements;

"And the second one is not good, because the working fluid is gas, and there are high sealing requirements between the piston and the cylinder, but at the same time, the operation of the piston needs lubrication, which is a pair of contradictions."

"We've got lubricants?" Chen Du asked.

"That's one of the big reasons why Stirling engines weren't widely available in the early days – we couldn't use lubricants."

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