After everyone tasted a certain future they had sketched again, Zhu Yuan then answered some questions from Lao Zhu and the ministers, and then signaled to the north: "Ancestor, Your Highness, and everyone, the last one, please move." ”

Come to the north bank of the small lake.

Just looking at the two large fuselages covered in red silk, everyone roughly guessed something.

Zhu Yuan stopped everyone from getting too close, stood in front of the last demo card two zhang away, and instructed the craftsman to uncover the red silk, and suddenly, two models of steam engines of normal size appeared in front of everyone, full of yellow and clear appearance, and it was very expensive to look at.

The craftsmen began to pour water into the fire, and Zhu Yuan also spoke again: "Ancestor, this is a normal size steam engine, because it has just been made, it may be dangerous to operate, so you can watch it from a distance." I'll start with a few points. ”

As he spoke, he motioned to the demo card that was also unveiled in front of him: "The first one, about the material." ”

At the same time, he nodded not far away: "The main components of the two model machines you see are brass casting, because the copper material is soft and easy to process." However, Daming lacked copper, even if it was forcibly made of copper, because the cost was too high, it was not cost-effective. Therefore, in the future, steel materials will definitely be used in the manufacture of large-scale steam engines. This is also related to what I said earlier, which is that iron occupies 5% of the ground beneath our feet, which is an inexhaustible source. ”

This time it was the first time that the crown prince Zhu Biao interrupted: "Yuan'er, you said that iron is 5%, so how much copper?" ”

"Your Highness, this has stopped me," Zhu Yuan thought for a moment and asked rhetorically, "Your Highness should have read the periodic table, right?" ”

Zhu Biao nodded, paused, and subconsciously added: "There are a lot of defects." ”

"Yes, I only remember the first two dozen or so, and I can't remember the whole table," Zhu Yuan said with a smile: "There is a truth that the higher the element in the periodic table, the content of the earth...... Probably more. Well, it's just possible, because, as I happen to remember, the most important element is 'oxygen', which is the eighth in the table, and the first 'hydrogen' element, I don't remember very well, should be very backward in proportion, and what I know is that the eighth 'oxygen' and the fourteenth 'silicon' together account for more than 70% of the earth's mass. ”

Zhu Yuan said and looked at the ground, this side was paved with bluestone, and he couldn't remember what kind of composition it was for a while, so he quickly turned to the surrounding houses and pointed over: "Your Highness, look at those bricks, they are made of clay fired in two layers, clay is called 'silicate' at the chemical level, the main components are oxygen and silicon, and most of the land, rocks, etc., that you see every day, are also silicate." Oh, off topic. After that, the third element is also a metal, called 'aluminum', sodium, magnesium, aluminum, silicon phosphorus, ranked thirteenth, and I don't remember exactly what the proportion was. Because the aluminum element is very active, it cannot be refined for the time being by our means. Then, in fourth place, iron, accounts for 5% ......"

Facing Zhu Biao, Zhu Yuan wanted to take the initiative to talk more. However, for Zhu Biao, even if these knowledge are just some foundations, he still doesn't want someone to talk nonsense.

So he took the initiative to interrupt: "Yuan'er, where is the copper?" ”

Zhu Yuan was interrupted, feeling the meaning in Zhu Biao's expression, he smiled and nodded slightly, and then said, "Copper ...... It should be one thousandth or one thousandths of a thousandth, very, very little, and the reason is ...... Heh, it's still about what I said in the imperial examination hall last month...... ...... about the sun Some origins. ”

Zhu Biao also remembered that when he said this, Zhu Yuan, who was talking eloquently, took the initiative to stop, seeing that he didn't blurt out with interest this time, he was quite satisfied, but said: "You said at the time that you wanted to tell your father and me in private, why haven't you said it all the time?" ”

Zhu Yuan apologized: "Your Highness, I've been too busy lately, so ...... I'll take the time to write it. ”

Zhu Biao nodded.

Lao Zhu listened with relish, and said at this time: "Yuan'er, this matter is not in a hurry, and I will talk about it even when I have time, and I have listened to it now, but I feel that these knowledge are not needed now." ”

Zhu Yuan agreed again.

The people around are a circle of fog.

What is the periodic table?

What is silicon?

What is the origin of the sun?

However, seeing that the old Zhu family and the family seem to understand a little, everyone also understands that this should be regarded as family heirloom knowledge, which can only dispel curiosity.

Zhu Yuan glanced at the standard-size steam engine that was still burning not far away, and turned to the 'ppt' in front of him, he had just said that it must be made of iron, and continued at this time: "To sum up, because of the materials, we can only use iron to make millions or even tens of millions of steam engines in the future. ”

Said and turned to the next page: "Speaking of applications, what I just showed you is the use of the steam engine after the popularization, and in the early stage of development, I had only one idea for the steam engine, auxiliary." Auxiliary mining, auxiliary iron smelting, auxiliary processing. How can it help? For example, in mining, we can build simple steam locomotives to transport ore out of the pit far more efficiently than human and animal power, and we can also build steam pumping machines to pump out possible water in the pit. Speaking of iron smelting, a very important demand for iron smelting is air blast, which we generally use at present, which is manpower or hydraulic blast, two, one ...... Oh, in the terminology I just had, the 'power' is too low, and the other, too limited by the terrain, has to rely on water. Now, with the steam engine, we can design a blower that can be used to have a lot of power and be free from the limitations of the terrain. ”

Turn another page: "Speaking of auxiliary machining, this is an important point: machine tools. ”

Let's take a look.

On the three-foot square 'PPT', four machine tools are drawn at a glance on the top, bottom, left and right. Because we all know that the hydraulic lathes used to manufacture bearings on the banks of the Yangtze River are currently ...... At a glance, everyone could roughly understand what they were doing.

Zhu Yuan also continued: "Machine tools, in fact, have another name, called 'the mother of industry', well...... Why, because in the industrial age, a large number of industrial parts, whether metal or non-metallic, such as bearing balls, such as screws that you should have seen, and even, in the future, there will be new firearms, especially this firearm, all need machine tools for processing. ”

Lao Zhu, who was standing next to him, smiled slightly when he heard this.

The mother of industry.

Others don't understand, but Lao Zhu knows that this should be called hundreds of years later.

However, since he dares to call the 'mother of industry', Lao Zhu can also make a judgment that these things are really, very important.

Zhu Yuan has already signaled the detailed introduction of the 'PPT' in front of him: "The machine tools I envision are mainly divided into four categories, the first, lathes, used to process balls and other components; the second, a drilling machine, for processing parts with holes; the third, the boring machine, which processes cylinder parts, as well as the barrel of the gun; Fourth, milling machines, machining of irregular components, for example, gears. It sounds very simple to everyone, but the industrial products of the future are actually nothing more than these shapes. So, why do we design these heavy equipment for specialized processing? ”

After glancing around, Zhu Yuan gave an answer: "Because of 'efficiency'." ”

Gesture around again: "The mini steam machine we just saw, as well as the normal-size model in front of us, are all hand-polished and cast by craftsmen, indicating that it can be processed without machine tools, however, it is purely handmade, and it cannot bring the industrial age." For example, the cylinder of a steam engine, a group of craftsmen, it takes several days to manufacture one, and it may not be qualified, while a milling machine may be able to manufacture dozens or hundreds of them a day, this is the gap. ”

When Zhu Yuan said this, Zhong He, who was not far away, motioned to him, stopped for a while, and nodded.

When they saw this, they looked at it together.

Not far away, the two steam engines were already filled with mist, and I saw the two craftsmen fiddle with the wheel respectively, and the sound of 'Tututu-tu-' suddenly sounded.

At the same time, more water vapor erupted from the cylinder, quickly spreading to everyone's side.

Once again, it's like a wonderland.

The more timid ones even took a few steps back because of this, but they couldn't help but look over.

This normal size steam engine...... Or are the two of them working together at the same time, and the mini steam engine...... It's like an elephant that shakes the ground when it walks and a herd of silent mice, it's a world of difference.

Zhu Yuan looked at the large area of mist coming out, but he had some other ideas.

However, I can't say it now.

There was too much movement.

Zhong He had done a test before, and the steam engine in front of them was running for more than two hours.

It can't be that way at the moment.

Just waited silently for dozens of breaths, Zhu Yuan gestured again, and soon, both steam engines were turned off.

Waiting for the movement to stop completely, Zhu Yuan looked at the water mist around him that quickly dissipated in the cold winter air, and said to Lao Zhu beside him: "The utilization efficiency is still low, I just thought that these steam should be able to be recycled several times, probably ...... It's just to make a few more cylinders. ”

Lao Zhu nodded, he didn't understand much, and he ...... at the moment Just wanted to get closer and take a look.

Zhu Yuan had to stop: "Ancestor, wait a while." ”

At the same time, I also experienced the mood of He Xuan when he stopped himself a few days ago.

It is not easy for this steam engine to explode, but even if Lao Zhu is burned, today's great thing will not be complete.

Lao Zhu thought about the power of this steam engine before, and stopped very persuasively, and when the others saw this, they also dispelled the idea of stepping forward.

Unable to step forward, Lao Zhu looked around, pointed and commanded: "These...... All the people in the courtyard were moved to the palace, huh...... Just set up in front of the main hall, the railroad tracks ...... You don't have to be long, it's too expensive, just three or five zhang. And your demo boards, don't pull them down. ”

Zhu Yuan nodded, and persuaded again: "Ancestor, everything else can be sent, these two large items are just done, and they are not very safe." Also, even if it's all small things, your Highnesses still don't just get started and let the people come. ”

Lao Zhu did not object, and glanced at the second son behind him with disgust: "This is the important weapon of the country, not some children's thing, how can they play with it at will." ”

Saying that, he looked at the craftsmen around him again, and remembered something, Lao Zhu grinned, and said loudly: "Yuan'er will reward you, and for this reason, I have been talked about by the officials, and I can't be small, and each person today is also 10 taels of gold." ”

Immediately knelt down and kowtowed in thanks.

After waiting for a while, Zhu Yuan finished talking about the last demonstration board, and confirmed from his own baby twenty-third grandson that Lao Zhu finally stepped forward, touched it here, looked there, and looked very babyish.

It's a pity I can't take it home.

stayed here for more than a quarter of an hour, until he noticed the tiredness in the expression of his baby twenty-third grandson, Lao Zhu reluctantly took the prince and the ministers back to the palace.

Outside the gate, seeing off Lao Zhu and the others, Zhu Yuan breathed a sigh of relief.

Complete!

Perfection to the point of some prostration.

However, after today, a new era is also basically finalized!

Today is not over.

is obviously too complete, so complete that Lao Zhu feels sorry for his baby twenty-third grandson if he doesn't do something.

So, Zhu Yuan had just had lunch, and was about to take a good rest after a few days of tossing, when a decree came from the palace. Zhu Yuan, the political affairs of Pingzhang in Zhongshu Province, was crowned as a doctor from Ronglu, and rewarded ten servants, twenty beautiful women, and one hundred servants.