Chang'an City, here is the Le Restaurant.
A few days after the house went on sale, Huo Guang decided to close the restaurant for a few days for rectification.
It's said to be closed for rectification.
Actually.
It's because the flow of people in Chang'an City has been too heavy these days, and it's difficult for the pub to open.
It just so happened that he was going to compile a book on science and engineering knowledge to teach those children during these two days.
But here's the thing.
How can children from poor families learn science and engineering knowledge if they don't even know a few words?
Isn’t this playing the piano to a cow?
Huo Guang took this into consideration.
so.
What he wants to do is not to impart science and engineering knowledge rigidly, but to enlighten these children in science and engineering.
What’s the best thing about enlightenment?
Of course it's a picture?
Huo Guang still remembered that when he was a child in his previous life, he didn't know a few words, but he was very happy to see those comic booklets.
Words are never the first choice for human enlightenment.
Pictures are!
After deciding to focus on pictures and supplemented by text.
So what should you draw first?
Huo Guang didn't hesitate at all and directly drew a picture of boiling water. Because at this time in the Han Dynasty, there was no such thing as a cooking pot in later generations.
so.
Huo Guang boiled water when he painted, and the picture he used was in the shape of a tripod.
The second painting.
What he painted was the steam-rotating ball pattern designed by Hero of Alexandria in the first century abroad.
Now.
The era that Huo Guang lived in was the period of Emperor Wu of the Han Dynasty, which was 115 BC.
The appearance of the steam ball was a hundred years later.
But this does not prevent Huo Guang from directly using Hero's spinning ball to enlighten these children. The steam ball was the prototype of the steam engine that led the industrial revolution.
The third painting is no longer a simple painting.
It's a design drawing.
He combined something like a steam ball on a carriage wheel. The rotation of the steam ball drives the rotation of the carriage wheels, and the rotation of the carriage wheels makes the carriage move forward.
Can this be successful?
No!
This doesn't work.
The first purpose of Huo Guang's paintings is to enlighten these children in science and engineering knowledge.
Let them know that the steam produced by boiling water can be used in this way.
As for why Huo Guang’s first picture is of boiling water?
Very simple!
Because boiling water is really something that has accompanied human civilization to this day. All human technologies are inseparable from boiling water.
If one day, humans can completely get rid of boiling water.
That can only show that there are two situations in human beings.
One is that humankind has perished.
The other is a method where human technology has been improved across stages and can directly convert energy into human needs, skipping the step of boiling water.
The first three paintings, after they are finished.
The fourth picture Huo Guang wants to draw is the prototype of the steam engine.
A heat engine that uses steam to expand in a cylinder to push a piston into reciprocating motion to produce work!
Even if Huo Guang couldn't make this thing real, couldn't he still draw it?
You can draw it, but are you worried that you won’t be able to do it later?
rest assured!
With the hands-on ability of the craftsmen, as long as they are willing to study hard, I guarantee that they will be able to make something like this in a few years.
perhaps!
At that time, Huo Guang was no longer alive.
But what he left to his big man was the seed of hope!
After the prototype of the steam engine was finished, Huo Guang unconsciously began to draw the effect of the steam engine one by one.
For example, a conceptual diagram is used to make an engine on a carriage, or the piston driving principle of a steam engine is changed to the piston principle of petroleum internal combustion.
even.
There are also pictures of various airplanes, submarines, etc. at the back.
Although these things may not be possible if the Han Dynasty develops for another four hundred years.
But Huo Guang just wanted to point them in the right direction, and that was enough.
At this point, the direction of the steam engine is over.
later.
Huo Guang elaborated on the more difficult basics of electricity, chemistry, and even wrote down the periodic table of elements.
Anyway!
He tried his best to draw what he had learned in the past in a picture format that could be understood by people of the Han Dynasty.
to this end.
In half a month, Huo Guang actually consumed nearly a thousand pieces of paper.
When he came out of this Le Restaurant.
Already unkempt.
After sorting out the paintings, he returned to Huo Mansion to wash up and have a rest.
after.
He also recruited blacksmith Ouyang Zhi and carpenter Li Hong.
Except for these two people.
He also specially picked up Dong Xun from the racecourse. He couldn't let Dong Xun stay in a place like the racecourse, right?
certainly.
All of Huo Guang's actions were done with purpose.
He's not a love guy. He'll get mad at a beautiful woman.
Dong Xun had studied with Dong Zhongshu before and was literate. Huo Guang called her here not only to improve her life, but also to let her help him compile books.
Huo Guang only came up with the book paper thing a few years ago.
So there is no such thing as printing.
Huo Guang could do printing if he wanted to, but he didn't want to do it at the moment. Why? Because calligraphy and paper have not yet become popular across the country, if we engage in woodblock printing and movable type printing, isn't there something wrong with our brains?
perhaps.
Later, I will be completely in charge.
It won't be too late for him to do this again.
besides.
Huo Guang also planned to let Dong Xun teach children from poor families to read. Dong Xun didn't have much knowledge, but his literacy was enough.
Like the rural primary schools in his previous life, the teachers there were all farmers, and some were even vendors selling popsicles on the street.
But these people can become teachers as long as they are literate.
but.
That time was 2008 years ago, and Huo Guang didn't know what happened next.
now.
Huo Guang gathered Dong Xun, blacksmith Ouyang Zhi, and carpenter Li Hong together and showed them the design drawings.
Dong Xun doesn't quite understand this.
But when carpenter Li Hong and blacksmith Ouyang Zhi saw these drawings, their eyes lit up.
The so-called insiders look at the door, while laymen look at the excitement.
Li Hong and Ouyang Zhi didn't know what the designs on these drawings were for, but from those precise designs, they could feel that this kind of thing was definitely not simple.
"Marquis Bolu, you called us here to make these things? But what should we do?" Li Hong asked, holding the drawings.
Huo Guang smiled faintly and said, "Li Hong, you don't have to worry, most of these are the work of the blacksmith."
"You are here to help Ouyang Zhi."
"After all, you are a master at carpentry and can provide the blacksmith with a lot of help."
After originally saying that these were the work of the blacksmith, Li Hong was not very happy.
But then he praised him as a master. This guy made Li Hong extremely happy.
He immediately said that he could help with all his resources.
Ouyang Zhi looked at the drawings and couldn't help but frowned and said, "These are all
What, haven’t you seen it? Huo Yilang. Oh no, Marquis Bolu, what is this for? "
Huo Guang smiled faintly and said, "Why not? This is to lead the process of human civilization!"
"Civilization? Culture!" Li Hong questioned.
To this.
Huo Guang shook his head slightly and said, "It's civilization. The Book of Changes says, "When you see a dragon in the field, the world is civilized." This civilization refers to the progress of people's livelihood, as opposed to barbarism! "
"Ahem." Li Hong coughed twice to cover up his embarrassment.
Huo Guang didn't pay attention to this and continued: "The civilization that I want to lead can be summarized in six words."
"Boil the water and throw the stones!"
The words fell.
Huo Guang's eyes suddenly turned to Dong Xun and told her: "Dong Xun, you can write down what I said."
"oh!"
Dong Xun nodded obediently, and then began to record what Huo Guang said.
Boiling water is, simply put, energy work.
What about throwing stones?
It’s about giving power to objects.
Archery, catapults, and thunder cannons can all be said to be throwing stones.
Even the rockets that will fly into space in the future.
Comparing human civilization to boiling water and throwing stones is actually a meme on the Internet.
Is it right?
That's definitely not right.
But it makes sense, and the metaphor is very vivid.
What Huo Guang mainly does is to enlighten children from ordinary families about physics, chemistry and other scientific knowledge.
The effectiveness of enlightenment is unimportant.
But that spark of enlightenment is very important.
Just like our ancestors using tools for the first time, this is very important.
aside.
Ouyang Zhi, who looked like a burly man, couldn't understand Huo Guang's words and said directly: "Why are you teaching those children how to boil water and throw stones?"
"Then I can too!"
"What is there to teach children about this thing?"
Huo Guang glanced at Ouyang Zhi and said angrily: "I'm talking about a metaphor, and it's not as simple as boiling water."
"Take your blacksmithing as an example. After you light the stove, what are you going to do next?"
Ouyang Zhi said directly: "Forge, quench, and create the required tool shape according to the requirements."
Speaking of blacksmithing, Ouyang Zhi has something to say.
After all, it is what he is good at.
Huo Guang stretched out his hand to interrupt and said, "Stop, stop, stop, who asked you to say this? Let me ask you, didn't you say there is something to be taught about boiling water?"
"Then let me ask you, what happens after the water boils?"
"What to do?"
Ouyang Zhi shook his head directly.
This way.
Li Hong then said, "Drink, make some tea."
Seeing Li Hong causing trouble, Huo Guang immediately glared at him and said, "Don't make trouble."
Li Hong could only scratch his head in embarrassment.
At this time, Huo Guang picked up a painting he had made earlier, which was the one depicting the rotating ball designed by Hero.
At this moment.
Huo Guang said to Ouyang Zhi: "Ouyang Blacksmith, I want you to make something like this now. The middle is hollow, and you can fill it with water and burn it with fire underneath."
"When the water is boiled, it can pass through the pipes and the hot air will enter the sphere above."
"Do you believe that this sphere will spin without wind?"
Ouyang Zhi immediately shook his head and said, "I don't believe it. It can turn on its own without wind? Ha, I have been working in iron for so many years, but I have never seen such a magical thing."
Huo Guang smiled, then looked at Li Hong and said, "You don't believe it either?"
"Do not believe!"
Li Mu shook his head.
Huo Guang then looked at Dong Xun. Before he could speak, Dong Xun said, "Huo Guang, I believe you."
Dong Xun said that he believed in him, not that he believed in what he said, but that he believed that the words were said by him.
Huo Guang knew the reason.
So he nodded, smiled slightly, and said: "Practice is the only criterion for testing truth. Come on, Li Hong, Ouyang Zhi? Next, let's go make this steam ball. We will know if we try it!"
Li Hong's carpentry shop belongs to Huo Guang.
Ouyang Zhi's blacksmith shop was also built by Huo Guang.
Huo Guang spoke.
Of course they both wanted to listen.
then.
The prototype of the steam engine, the steam ball, was made within days and nights of processing.
Because this kind of thing is not as precise as a gun barrel, complex issues such as chamber explosion must be considered.
So the production process is not difficult.
Just pound the iron block into iron sheet and then build it according to Huo Guang's design.
If it's square, make it square, if it's tube-shaped, make it tube-shaped.
The slightly more difficult thing may be the ball of the steam ball!
but.
Even though the Han Dynasty was a hundred years ahead of itself, its original industrial level was countless years ahead of other countries in the Western world.
Do you know about gears?
There are bronze gears in the tomb of Emperor Han Wen.
The steam ball is a very simple device and was quickly produced with the cooperation of two craftsmen.
after!
Huo Guang began to show them his magical side.
He first added water to the iron box, then sealed it and asked someone to bring a pile of firewood and put it under the iron box to burn.
soon.
The water in the iron box boils, and the steam enters the sphere from the pipe, and then spurts out from the special hole on the top of the sphere, and steam begins to emerge.
Wait until a certain moment.
When a large amount of steam comes out, the steam ball starts to rotate on its own.
This magical scene stunned everyone present.
Especially the blacksmith and the carpenter. These two people built the steam ball according to the graphics designed by Huo Guang, but they still don't understand why the wheel rotates on its own?
"Now, this is the preliminary application of boiling water. Ouyang Zhi, didn't you say a few days ago that you could boil water? So, can you also do this?" Huo Guang asked with a smile.
Ouyang Zhi scratched his head and looked at the spinning ball. He shook his head in embarrassment, and then asked: "Then what use can such a thing have if it rotates?"
"It's useless!" Huo Guang spread his hands.
The steam ball is indeed the prototype of the steam engine.
But here's the thing.
To say it is useless is really useless!
When Ouyang Zhi heard this, he immediately said: "Then what is the use of this thing that we have worked so hard to make these days?"
Huo Guang replied directly: "Let the students see!"
"Student?" Several people present looked at Huo Guang at the same time, as if they didn't quite understand what the student meant.
Huo Guang said: "Ah, didn't I tell you?"
"I built a place outside the city for the common people's children to learn, but I don't plan to teach them the Four Books, Five Classics and Six Arts."
"I want to teach them to understand the principles of "boiling water" and "throwing stones." "
"Oh, by the way, Dong Xun."
"From now on, you will teach these children how to read and correct test papers."
Because Huo Guang had already greeted her a few days ago to teach the children how to read.
so.
Dong Xun was not surprised by this.
only.
What does it mean to mark test papers?
Dong Xun didn't understand, so he was surprised and said, "Ah? Huo Guang, what are you correcting?"
Huo Guang waved his hand and said, "The test papers are the questions I will give to the children at the end of every month. I will give you the answers then, and you will just correct the answers."
"Those who are all right will be given to the top students, and their families will be exempted from the monthly housing allowance; those who pass the exam will be given to the top students, and their families will not be exempted from the housing allowance."
"As for those who failed?"
"Just let him go home and do whatever he has to do!"
(End of chapter)
