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

Chapter 21 How did my father’s head grow?

To Cao Ying's ears, Cao Wei at this moment seemed to be speaking from heaven.

As a native of Ming Dynasty, he had no knowledge of steam engines at all.

Naturally, there is no way to imagine, and there is no way to know how to convert the pressure of steam into energy, and then replace human power.

What my father said was really getting more and more obscure and difficult to understand.

Cao Wei saw Cao Ying's confusion, and after thinking about it, he said:
"Ying'er, do you remember the gear set and pulley set from before?"

"The child naturally remembers that his father gave it to the emperor...Grandpa Zhu."

When Cao Wei heard Zhu Shiliu, he couldn't help but bared his teeth, and then said:

"If you use a gear set and a pulley set to tie a smaller stone, weighing several dozen kilograms, and then change the direction of the force, and use the power of steam to push the pot lid, do you think the stone can be moved?"

Cao Ying suddenly looked shocked.

Looking at his expression, Cao Wei could even figure out what he was thinking:
Can you do this?

After thinking for a moment, he nodded towards Cao Wei.

"Father, I think it's okay, but the range of motion is too small to fully lift the stone."

At that time, he used the gear set and the pulley set to pull the boulder without finding it too strenuous.

And if you want to cover a boiling pot with all your strength, I'm afraid you need to put in more effort.

He understood how to use a pulley to change the direction of force, and it was not impossible for the pot lid to pull the rope.

It's just that he doesn't understand what's the point of doing so.

Cao Wei smiled at him: "If the pot is big enough, the force generated by the water in the pot turning into steam after boiling will be strong enough, and with some traction devices, the power of the steam can be completely transformed."

Traction device?

What is that?
Cao Ying only felt that the more she listened, the more confused she became.

Cao Wei had no choice at this time. To understand the braking principle of a steam engine, he needed some assistance, such as teaching materials.

But where does Cao Wei have any teaching materials?
He can only tell Cao Ying in detail after he builds the steam engine.

He clapped his hands and interrupted Cao Ying, who was frowning and thinking:

"That's it for today. As a father, I will tell you more in detail later."

After speaking, he looked at the sky, it was getting late, Cao Ying must be hungry.

Cao Wei got up and got into the kitchen. After a while, wisps of smoke came out of the chimney.

Cao Wei and his son's family have always had two meals a day, one in the morning and one in the evening.

It cannot be said that Cao Wei was reluctant to eat. It was because his economic level was limited. All the people in the Ming Dynasty lived like this.

Only those landlords and officials and gentry can eat three meals a day, big fish and big meat.

The only one to blame is Cao Wei. This time travel has no technical content at all.

If it were worn by any prince, prince, or grandson, who would eat the whole meal!Eat the big white steamed buns and throw them away!
Fortunately, Cao Wei and Cao Ying, due to years of exercise, their bones are very strong, and there is no obvious malnutrition.

At most, sometimes when I stand up suddenly, my head will be a little dizzy. This is called anemia, a small problem...

It's still the same two plates of simple green vegetables and a few black and yellow steamed buns.

Cao Wei and his son were wiped out in an instant.

Cao Ying returned to the house after dinner and extinguished the candle soon.

But Cao Wei's room was always lit.

He was drawing a picture at this time,
But what is drawn is not the drawing of the parts of the steam engine, but the plane working principle of the steam engine.

Cao Wei had a flash of inspiration the moment he saw the drawings on the table after eating.

Since there is no teaching material, why doesn't he make a teaching material by himself?
It is not too difficult to draw a planar working principle diagram of a steam engine.

Cao Wei thought so too, so he did so.

It wasn't until midnight that Cao Wei finally finished the painting.

There are three drawings in total, which show the three cyclic states inside the steam engine.

With these three drawings, he could clearly explain the principles of the steam engine to Cao Ying.

Yawning, blowing out the candle, Cao Wei didn't even take off the layer of sackcloth on his body, just fell down on the bed, and fell asleep sullenly.

Time came to the second day.

This time it was Cao Ying who asked Cao Wei to get up.

"knock knock"

"Father."

The knock on the door and Cao Ying's shout made Cao Wei, who was lying on the bed, open his eyes.

[Countdown to return: 352 days, 15 hours, 03 minutes and 14 seconds]

Another day missing...

Cao Wei got up, opened the door, and practiced boxing with Cao Ying after washing up.

After preparing a simple breakfast, Cao Wei held the three drawings in front of Cao Ying with a certain air of dignity.

Cao Ying was studying in his room. He raised his head and looked at Cao Wei doubtfully.

Cao Wei tapped the three drawings on the table with his fingers, and Cao Ying looked down.

"This is the steam engine that my father told you about before. The picture above shows its internal structure and working principle."

While talking, Cao Wei showed him the components one by one with his fingers.

"Look, this water container can be regarded as a big pot, and this pipe is used to transport the water vapor generated after the water boils."

"This side is the cylinder, and the top is divided into a steam inlet and an air outlet. After the water boils here, the water vapor enters the cylinder to generate pressure, pushing the piston to move the connecting rod, and the connecting rod can drive the wheel to rotate."

"When the piston reaches the end of the cylinder, another connecting rod pushes the valve."

Cao Wei picked up the other two drawings, "Move the ventilation valve here, the air outlet starts to exhaust, steam also starts to enter the other side and the piston starts to recover, the piston drives the connecting rod again, the connecting rod drives the ventilation valve again, and the steam Go into the very beginning of the pipe, push the piston again and pull the connecting rod to turn the wheel."

"And so on and on and on and on and on."

Cao Ying looked at the three drawings without blinking.

The principle is very simple, not profound. With Cao Ying's clever energy and following Cao Wei's explanation, he quickly understood the internal working principle of the steam engine.

Is this converting steam into energy?

"But, father."

Cao Ying raised his head and looked at Cao Wei with his big eyes.

"Is such a thing made just to turn a wheel? What's the use of it?"

Cao Wei stretched out a finger:
"Ying'er, don't worry, let's see how being a father can turn decay into magic!"

I saw him pick up the pen and start drawing on the edge of the wheel on the drawing. In a moment, he drew a fist of teeth.

The wheel that was originally not very smooth on the drawing suddenly became a not very smooth gear.

Cao Wei put down his pen and said, "If you take a set of gears and install them on the gears of the steam engine..."

Cao Ying's eyes widened immediately!
At this point, he finally understood!
He still remembered the gear set from that day, and people pulled the rope at one end just to make the gears rotate.

Now that a steam engine turns the gears, there is no need for human power!

Is this what my father said about using steam to generate pressure to obtain energy transfer, thereby replacing human power? !
Great!

Cao Ying looked at Cao Wei who was looking at him with a slight complacency and a smile on his face.

Father's head...

How long is it?

(End of this chapter)