Daming: If I find a great-grandson, I will teach an emperor through the ages

Chapter 20 Steam Kun!
If Cao Wei was not a staunch materialist, he would have suspected that the thing floating in the sky started with U and ended with O.

Shaking his head, Cao Wei threw away the ridiculous idea that "aliens are coming".

So... what is that in the sky?
At this time, the thing had drifted further and further away, becoming a small black spot in the field of vision, as if it had become a mole on the white clouds in the sky.

Then, the mole "falls off".

It fell rapidly and finally disappeared from everyone's sight.

Cao Wei heard someone whispering next to him, talking about "miracles" and "spirits".

As an atheist, Cao Wei couldn't talk to them, so he could only turn his head and walk home, thinking while walking.

Halfway through, he slapped his head.

Wasn't that thing in the sky just now a huge Kongming Lantern?
Even the shape is not bad!

Although Cao Wei talked about the huge "Kongming Lantern" when talking to Cao Ying and Zhu Shiliu, in his mind, he felt that the shape of the "Kongming Lantern" should be like that of a modern hot air balloon.

After all, the spherical shape can reduce the impact of wind.

It was precisely because of this preconception that Cao Wei did not react immediately.

Now Cao Wei figured it out, what was floating in the sky just now was the Kongming Lantern!

Here comes the problem again.

Who made such a big Kongming lantern?

Cao Wei recalled that the direction where the Kongming Lantern came out at first seemed to be the side of the imperial city.

"Zhu Sixteen!"

Cao Wei gritted his teeth and thought of a person's name.

Must be him!
He only told Cao Ying and Zhu 16 about the idea of ​​the giant Kongming lantern.

Cao Ying is with him every day, and has neither the opportunity nor the ability to make a huge Kongming lantern.

It must be Zhu Shiliu!
He stole his own wisdom!

Cao Wei has already imagined a picture.

The old man Zhu Shiliu found out the idea of ​​the huge Kongming lantern from himself, found his old friend in court, smiled sinisterly, and handed over his idea like a treasure...

Maybe the court will give him many rewards!
Thinking of this, Cao Wei gritted his teeth!

That should have been his patent!

All the way back home, Cao Wei picked up the kettle and poured a steam to calm down.

Cao Ying came out of the house and was very curious when she saw Cao Wei's angry appearance.

"Father, what's wrong with you?"

Cao Wei sat down on the stool and slapped his thigh again, his face full of anger:

"Ying'er, Old Man Zhu is not particular about it!"

Immediately, Cao Wei said everything he had just seen.

After hearing this, Cao Ying suddenly felt guilty.

The idea of ​​the huge Kongming Lantern was first mentioned to Zhu Yuanzhang by him.

Listening to her father saying bad things about "Zhu Shiliu", Cao Ying felt as if he was talking about herself.

That's what it's like to be guilty.

"Zhu Shiliu! Don't let me meet you again..."

Cao Wei was still talking.

Cao Ying silently lowered her head, and returned to the room without saying a word.

After sitting for a while, Cao Wei's anger subsided.

He's not a petty person.

Originally, if Cao Wei's idea was not implemented, it would be nothing but empty talk.

However, if Cao Wei wants to realize this idea alone, it will take a lot of effort, it can be said to be almost impossible.

What's more, Cao Wei has less than a year left now.

Now Zhu Shiliu can be regarded as helping him build the huge Kongming Lantern, which can be regarded as a start and contribution to Daming's aviation journey.

These can be regarded as some of the changes he made for Ming Dynasty.

After figuring it out, Cao Wei put Zhu Shiliu aside, and began to think about what to teach Cao Ying next.

The most direct way to improve a country's industrial level is to develop some mechanical devices that can replace a certain amount of manpower.

Because the efficiency of mechanical devices is much higher than that of human power.

The improvement of efficiency means the increase of production capacity, and the increase of poor energy will naturally increase the productivity.

Mechanical devices are the most important part of improving productivity!
But if you want to make a mechanical device that can replace human power, you need energy to replace it.

Such as electricity, oil, gas, fuels that allow mechanical devices to run on their own.

However, there was no electricity at this time, and the only lamp oil was useless.

Cao Wei thought hard, and when he was about to fall asleep, he finally thought of the most primitive steam engine.

He suddenly became energetic!
Yup!

The steam engine can solve the energy problem!

It only needs the most ordinary water to boil to generate steam pressure to do work!

Cao Wei closed his eyes again, carefully recalling the working principle and components of the steam engine.

"Cylinder, piston, connecting rod, valve..."

Two quarters of an hour later, Cao Wei opened his eyes, then asked Cao Ying for paper and pens, and started drawing.

The principle of the steam engine is not complicated, and it is not too difficult to build it at this time.

In his previous life, he was watching various short videos and saw someone making a simple steam engine model out of a pile of garbage.

There's no reason why Cao Wei couldn't make it.

However, only Cao Wei knew the working principle and composition of the steam engine. He had to draw out the design drawings and let the craftsmen make the parts according to the drawings.

Fortunately, Cao Wei still has some talent for painting. After wasting thirteen pieces of paper, he finally got better.

One by one, he drew strange patterns on the paper, and time passed by.

It was noon in the blink of an eye, and then the sun gradually moved westward. Time slowly passed Shen hour and entered You hour again.

However, the summer days were very long, and Cao Wei did not notice any obvious changes in the light.

He was concentrating on painting, and he didn't know when Cao Ying came to him.

I only heard a faint sound suddenly ringing in my ears.

"Father, what are you doing?"

Cao Wei trembled, and the pen in his hand deviated from the track.

have to!The connecting rod that has been drawn for a long time is in vain again.

Cao Wei turned his head to look at Cao Ying beside him.

Cao Ying, on the other hand, looked at the patterns he had drawn curiously, and the words a few centimeters were marked on them.

Shaking his neck, which was a little sore from bowing his head all the time, Cao Wei put the pen in his hand aside.

I'll paint again tomorrow.

"Ying'er, you said, what will happen after you boil a pot of water?"

Cao Wei didn't answer Cao Ying's question, but asked rhetorical questions habitually.

He felt that it was better for Cao Ying to understand the ideal step by step than to tell him directly.

Cao Ying was stunned when she heard this question, so simple?
"Water boils when it boils."

"What will happen to the water seal?"

"Scale?"

Cao Wei shook his head.

"water vapor?"

Cao Wei nodded.

"Water boils in a pot, and after steam is produced, can you cover the pot to prevent the steam from coming out?"

Cao Ying thought about the previous scene when the two of them were steaming cornstarch in the kitchen, and shook his head.

"Can't cover it."

"Yes, because when water boils and turns into steam, it generates pressure. This pressure can also be regarded as a force of energy, so the steam can push the lid open and come out."

"Then if you can build a device that can transfer the pressure generated when water turns into water vapor as energy to other places, can it replace human power?"

Cao Ying's face looked a little confused.

pressure?energy?manpower?

(End of this chapter)