As a salted fish, I was forced to become the teacher of all ages

"This is called knowledge." Hua Manlou said: "Our University of Science and Technology has always been adhering to the idea of ​​unity of knowledge and action, so simply knowing this is useless, you have to figure out how friction works, and then think about it. how to use it.”

"Everyone knows that the firearms used to be easy to explode. Apart from the reason that the iron material is not in compliance, isn't it because the inner wall of the barrel is uneven?" Hua Manlou turned his eyes to the old blacksmith in the firearms research and development team, and then said : "It's not that you didn't think about solving this problem at the beginning, but what is the final result?"

The old blacksmith was speechless, and finally said after a while: "In the end...just thickened the gun barrel, which made the gun very heavy and difficult to use in actual combat."

"So if you knew about friction from the beginning, would things have changed?"

"That's what Uncle said."

Seeing that the leading craftsman in Xishan was convinced, the others were speechless.

"That's why learning is like this. Sometimes it seems simple or even vulgar, but it contains a lot of truth, and it is even more difficult to use." Hua Manlou watched the expressions of the audience gradually become serious. The people said: "Now you can think about where the friction is good and where the friction is bad, and how to solve these problems?"

After a moment of silence, people started shouting loudly.

Hua Manlou couldn't understand a word, and finally had to press down with both hands: "Okay, okay, it's done."

After everyone was quiet, Hua Manlou said: "As I said before, everyone is busy working in Xishan to live a good life, so everyone is very envious of the generous treatment given to the people in the firearms research and development team."

"But everyone also knows that the firearms research and development class is very demanding, and there is no shortage of people for the time being." Hua Manlou paused, and continued: "However, this does not mean that you will not have the opportunity to go further."

"From today onwards, people with ideas can apply for project approval by themselves. The projects related to my course are given priority. If the project is approved, then I can not only set up a separate research and development class for you, but also the benefits of this project in the future. There will be a part of you."

As soon as these words came out, everyone was excited, and those graduates who started work early even regretted it—in Xishan, apart from Hua Manlou and those around him, the person with the highest status and social status is not the team leader of the R&D team?

The most important thing is that Huamanlou is not like some Zhou Paipi who can only draw big cakes. He said that if he gives income, then he will definitely give income—for example, the group of salesmen who sold stoves in the capital were like this. The same goes for the blacksmiths, though...

Hua Manlou felt that what he gave to those people was not income, but commission.

"Of course!" Hua Manlou suppressed people's excitement loudly: "The prerequisite is that the project must be reliable and pass my review! Take today's friction force as an example, some projects such as adding rope to the sole Don't mention it, you know?"

This noisy class ended like this. When it comes to knowledge points, it is not as good as a physics class for any junior high school student in Huamanlou's previous life. When it comes to the subject, it seems to be a chicken blood class, a physics class, and a big cake, but Speaking of influence...

Later historians said this: No one thought that this lesson would have a much greater impact on later generations than Confucianism has had for thousands of years.

519. This Wasn't My Idea!

The first class of Huamanlou was actually not a success, at least not in terms of teaching.

But the problem is that he is facing a whole auditorium of people in this class, and most of them are rough people who can only read a few words after coming to Xishan, and their worldview is very primitive. How much teaching experience.

So from this point of view, it's good enough to give this group of people a concept of friction.

Although some people dismissed it and thought it was Huamanlou playing tricks, the word "friction force" has become a trendy word that most people in Xishan talk about. Didn't you hear what Uncle said, it's called learning !

And those who dismissed this were naturally some scholars who were ordered to smelt iron and farm, and they haven't finished the punishment so far.

Although this group of people have fallen in love with the atmosphere of Xishan, and really feel that Xishan is the way to strengthen the country, whether it is ironmaking or casting, they still have a lot of criticisms about Huamanlou's use of nonsense friction as knowledge, so...

"Those nerds were almost beaten up." Zhao Ren happily ran over to report to Hua Manlou, "Because they said that what you talked about was not knowledge."

Hua Manlou was dumbfounded: "You didn't really get beaten, did you?"

Although there are only a small number of people who arrange Huamanlou, and they didn't say anything excessive, some people still couldn't help arguing with them.

But scholars are all sharp-tongued, how can the artisans of Xishan be able to argue?After coming and going, more people joined in, and it almost developed into a gang fight.

So, group fights often start from a small incident, which is roughly equivalent to the level of "what are you looking at" and "what are you looking at".

But no matter how you say it, you can't beat scholars. Having fame is equivalent to having half an official status. If the craftsmen in Xishan touch them, the consequences will be very serious.

Fortunately, Zhao Ren said: "That's not true, but the instructors were so angry that they vowed to study friction force to make a name for you."

Hua Manlou breathed a sigh of relief: "It's fine if you don't fight, it doesn't matter if you have a face or not."

Zhao Ren sighed and said, "But having said that, these nerds are really rigid. Co-authoring sage books is knowledge, but physics is not knowledge?"

Hua Manlou just glanced at him and didn't say anything.

There is nothing wrong with what Zhao Ren said. The books of sages and sages are knowledge that should not be discarded.

Huamanlou's previous Ming Dynasty suffered from this kind of loss, and the subsequent dynasty was even worse - such as the firearms seized during the Kangxi period, the emperor who is known as the sage only left a few as a collection , but regarded it as a strange skill, thinking that swords and spears were the mainstream. As a result, when the great powers came one after another, no one knew firearms. ...

Afterwards, Guochao even overcorrected, thinking that the things left by the ancestors should be completely discarded, Western learning is paramount, and even no matter what dross is accepted...

this thing...

It's really more nonsense.

"According to me, father's thinking is too rigid." Seeing that Huamanlou was silent, Zhao Ren continued to speak nonsense: "Can't he see that the way to strengthen the country lies in our Western Mountain? Without us doing it here Research and development, forging firearms, and developing water divisions, it is estimated that even the Japanese pirates will not be able to defeat them!"

There is some truth in this statement, but it is a bit embarrassing.

Then Hua Manlou came back to his senses and said, "You're itchy again, aren't you? If your father is really rigid, can you come to Xishan to make a fuss?"

To be honest, even Hua Manlou admired this point, because ever since Zhao Ren came to Xishan, some people in the court cried bitterly and begged Emperor Guangxing to recall the prince and teach him how to govern the country.

If Emperor Guangxing really had no eyes, how could he let Zhao Ren, the future emperor, come to the West Mountain?

But Zhao Ren had a different opinion. He said with a serious face, "If the father really has vision, he should add these things from our Xishan to the imperial examination. How can the imperial court choose those nerds?"

Hua Manlou said speechlessly: "I advise you not to say this in front of the emperor, you are easy to get beaten, you know? Besides, these things in our Xishan haven't formed a system at all, and on the whole they are more biased. In terms of military affairs, how to join the imperial examination under such circumstances?"

Zhao Rendao: "Why can't it? It's not difficult for them to talk about how to suppress Japanese pirates, right?"

Policy theory is equivalent to current affairs and politics. It is indeed required during scientific examinations, and theoretically it can really be added.

Hua Manlou didn't bother to argue with him, so he said, "Alright, you can go and talk to Father yourself when the time comes."

Zhao Renxing rubbed his hands excitedly and said, "It doesn't matter if you say it or not, but...why didn't I think of it before?"

Hua Manlou said in astonishment, "Thinking of... what?"

"Scholar, when I become the emperor, I will change the rules of the scientific examination and let them all come to test our Xishan stuff!" Zhao Ren looked at Huamanlou with an excited expression on his face: "Oh yes, This is your idea, and I will let someone write it into the history books!"

Hua Manlou was dumbfounded, and it took a long time before he said frantically, "Remember, this was not my idea!"

When will this pig teammate stop cheating?

The imperial examination is a way for civil officials to rise up, and it is also forbidden for literati. Using this thing is like an enemy of all literati, and its severity is basically equivalent to digging someone's ancestral grave.

I have to say that it doesn't matter whether Zhao Ren reforms the imperial examinations or not. After all, according to his pissing nature, the court will be very lively at that time, and it is not bad to stimulate the nerves of the civil servants. Anyway, he is the emperor and he is the biggest. Even the officials couldn't kill him and change the emperor.

But if he said that this was Hua Manlou's idea, then the matter would be over. This group of people reckoned that they would have to fight Hua Manlou to the death, even if they died.

"Why are you being polite to me?"

"I'm not being polite!"

Zhao Ren waved his hands indifferently: "Don't mention this, I have something to ask you..."

Hua Manlou said anxiously: "Anyway, you should remember first, no matter how you change the imperial examination in the future, it's not my idea!"

"Okay, okay, I understand." Zhao Ren responded casually, and then asked: "Speaking of which, I always feel that I need to use the friction force you mentioned to do something to shock those nerds. By the way, let us The people in Xishan are very excited, so I came up with something, do you think it fits?"

As he spoke, Zhao Ren took out a sketch from his sleeve and handed it to Hua Manlou: "Here, that's all."

Hua Manlou was still waiting to chat with Zhao Ren about the imperial examination, but he casually took the sketch and took a glance at it before subconsciously gasping: "Hiss... is this what you thought?"

"hold head high."

Hua Manlou held the sketch, unable to calm down for a long time: Why does this baby look more like a time traveler than herself?

520. It's very shocking...

Zhao Ren's sketch is very crude, and even a little difficult to distinguish, it looks like two circles with some small dots in the middle.

He even specifically marked that those small dots are columnar and can be rolled.

and so……

Isn't this thing just a variant bearing?

Hua Manlou looked at the sketch, then at Zhao Ren, and said with difficulty: "What are you going to use this for?"

"Huh? I can tell by your expression that you understand this. Of course this thing is used on carriages." After Zhao Ren replied with a natural expression, he suddenly looked frustrated: "I knew it, this thing must be you For the rest of the game, you will understand without me telling you."

Hua Manlou opened his mouth, feeling that he had been hit violently.

Are the bearings simple?

It can be said that it is quite simple. In the final analysis, it is nothing more than two iron rings with some small steel balls. It can be large or small, and it is very common in daily life. Whether it is a wheel or a fidget spinner, you can see this thing.

But that was Hua Manlou's previous life, which seemed simple. In fact, without the invention of bearings, there would be no progress in human transportation.

The reason is very simple. Everyone knows that the irascible Qin Shihuang did the thing of "same text and same track for books", so why should the cars be on the same track?

The track refers to the track of the carriage. There are such things on the so-called official roads. If you want to describe it, it is roughly two grooves, and the grooves are paved with wooden or stone rails.The purpose of doing this is not only because the officials strive for the stability and comfort of the carriage, but also because the axles and wheels of the carriage are fixed these days. When the carriage is moving, the axle and wheels will rotate together.

That is to say, when the vehicle is running, it is the axle and the car body that rub against it, so it is conceivable how frequently the axle is damaged and how difficult it is for the carriage to walk-this is still the case when there are rails.

But the emergence of bearings perfectly solved this problem. Although it looks inconspicuous, there is no doubt that without bearings, it is difficult for humans to make a big breakthrough in speed.

In fact, when Huamanlou mentioned friction, he thought of bearings, and planned to tinker with this thing, as a typical case of physics "applying knowledge and combining knowledge and action", however...

Met a genius.

In this world, geniuses do exist.

But Hua Manlou still didn't give up. He thought for a while and asked, "Can you tell me, what kind of thinking did you use to design this thing?"

Zhao Ren was a little embarrassed and said, "The inspiration actually came from something. I was ignorant when I was a child. I laid some wooden sticks in the Yin'an Hall. That time... Anyway, Mr. Zeng stepped on it and rested at home for a month..."

Hua Man Lou: ...

Why didn't your father kill you?

It's really hard to imagine that the source of inspiration for this unlucky child's bearing design is actually a tricky teacher, so...

Zeng Ge made outstanding contributions to human progress?

What is even more unimaginable is that this unlucky kid can actually connect trickery with friction, this understanding...

Well, Zeng Ge should be the old one, because recently he was the one who asked the prince to return to Beijing to receive education as soon as possible - after all, he is the prince's teacher, if the prince is too absurd in the future, many people will ask him Suicide to thank the world.

But he didn't even look at how useful he could be in Xishan compared to teaching this brat what to do!

"...All in all, I just suddenly thought of this matter, thinking that this is the application of friction." Zhao Ren scratched his head: "Then yesterday I heard someone say that pushing a cart is too laborious, so I suddenly had a flash of inspiration and designed I bought such a thing and plan to install it on the wheels, I think it is probably usable, what do you think?"

"..." Hua Manlou endured and endured, and finally couldn't hold back and sighed: "Didn't you realize that throwing a handful of soybeans on the ground is actually more effective when you made Zengge old?"

Zhao Ren was taken aback for a moment, then his eyes widened: "That's right! Why didn't I remember this!"

Look at it, genius is like this, you can understand it with just a word.

Can the bearing designed by Zhao Ren be used?

Of course, although it may look weird, the design is no problem, and it may be better realized in this era-without modern processing methods, it is very difficult to make a perfectly round spherical steel.

But having said that, losing to others is fine. Losing to Zhao Ren, a stinky brother, Hua Manlou felt unbearable.

So, this is where men's superficiality lies—the younger brother can be excellent, but the existence of the younger brother must not affect the majesty of the older brother, this is fundamental.

"That's not right," Hua Manlou asked again before Hua Manlou had time to feel Zhao Ren's adoring gaze, "If you put beads in these two iron rings, wouldn't it roll out?"

Hua Manlou was speechless for a while before saying: "...design two grooves inside the iron ring, and let the beads roll inside."

But Zhao Ren immediately asked again: "But how do you put the beads in?"

"..."

In fact, Hua Manlou once wanted to ask how those iron balls were put in the bearing.

This problem has troubled him for a long time. Later, a friend who opened an auto repair shop at home solved his doubts: smashing it in.It is said that the iron ring can be slightly deformed, so after putting the iron ball in, it can be done with a little smashing.

Of course, there are skills in smashing things by hand, but generally speaking, normal people will not smash this thing, and compared to hard smashing, it is obviously more reliable to buy a new one when it needs to be replaced...

But Hua Manlou didn't know how to explain it to Zhao Ren. Just as he was thinking about what to say, Zhao Ren was puzzled again: "Also, how should iron beads be made? If they are not round, will there be any impact? But if If you want to make it round, you can't polish it one by one by hand, right?"

Hua Manlou really wants to applaud now: Congratulations, you frankly thought of the most important question right away, you really deserve it!

In fact, Hua Manlou is also thinking about this issue, and thinks that the most difficult part of the bearing lies in the iron ball - he has seen a video introducing the production of steel balls, and in terms of modern methods, it takes There are quite a lot of processes, not to mention this era?

And Huamanlou doesn't have the experience and imagination to play with cast iron.

After all, this is not the advantage of traveling through the party.

So he said: "Well, how about setting up a research and development class for you directly? All the materials and personnel are at your disposal, and the people in the alloy research and development class fully cooperate with you, and your research and development is the first in the school. And the future revenue share will also belong to you personally, how about it?"

Zhao Ren stared at Hua Manlou with wide eyes and said, "Really? Keep your word?"