Daming: My boss Zhu Yuanzhang

Chapter 184 You will see

Li Wei looked around at the crowd, thought for a while and then explained: "It's like an oil lamp. Something with such a small wick can keep burning without going out. That's because it burns lamp oil, not the wick itself. Everyone got it?"

At this time, the students no longer paid attention to the principles he said, and only focused on writing down the practices he just mentioned.

Only Fang Xiaoru on one side showed a look of surprise, and realized that Li Wei's "spell" was actually to burn alcohol and use water to insulate heat, which is probably what it meant.

However, even after he understood it, this "spell" still amazed him.

Li Wei looked at these students who were still confused and was not in a hurry. He said softly: "It doesn't matter if you don't understand. You just need to know that this is science. In the future, as long as you study hard and learn the knowledge I teach you, you will understand. "

"Teacher, if you learn science, can you fly in the sky like a god?"

A student raised his hand and asked.

Li Wei smiled softly and said, "Of course!"

Fang Xiaoru was shocked at first when he heard this, and then suddenly realized that this was just a white lie told by Li Wei to deceive his children in order to stimulate their interest in learning.

"This Master Li!"

Fang Xiaoru shook his head secretly, but did not expose him on the spot. After all, this was for the good of the students.

However, to his surprise, Li Wei explained it to the student seriously.

"Actually, air and water are both fluids. We may use paddles to paddle the water to move the boat forward, but we can also use paddles to paddle the air and fly into the sky!"

Fang Xiaoru was really shocked when he heard these words: "Master Li, are you serious?"

Li Wei turned to look at him: "Of course!"

Fang Xiaoru was stunned. Although he couldn't understand the fluids Li Wei was talking about, looking at Li Wei's appearance, he seemed to be really confident that he could fly into the sky, which made him feel unbelievable.

The students didn't have such complicated ideas as he did. They just felt that since Teacher Li knew fire spells, it was natural for him to be able to fly.

Suddenly all the students cheered again.

It just so happened that Li Wei also prepared some small things that could fly today, so he took them out.

"Come on, everyone, take a look at this."

What Li Wei took out was something similar to a bamboo dragonfly, with a paper cup hanging underneath, and inside it was a relatively thin and short bowstring made of animal sinew.

The bow string is wrapped around the bamboo dragonfly's axis, and two wings are also supported on the paper cup.

"You've all played with bamboo dragonflies, right?"

"Played!"

These students are all children of craftsmen. It is not difficult to make bamboo dragonflies. Most of these children have played with them before.

"Actually, it is a rotating paddle. When it rotates, it will draw the air, thus pushing the bamboo to fly into the sky."

Li Wei gave a brief explanation first, and then pointed to the small toy in his hand and said: "Usually everyone rubs it with their own hands, but mine is different. It can turn on its own."

As he spoke, Li Wei turned the bamboo piece upside down a few times, then lifted the thing forward and released it lightly.

Driven by the elasticity of the bow string, the bamboo pieces quickly rotated and flew into the sky with the paper flying cup.

"Look, this is science. As long as we master science, we can make it bigger, and then it can take us to the sky!"

Li Wei pointed at the paper cup airplane flying into the sky.

The students all looked up, watching this thing flying higher and higher, and clapped their hands and cheered.

Fang Xiaoru looked at this thing, and he seemed to understand what Li Wei meant by technology, which was very high craftsmanship, so high that it could change the world, just like the legendary Lu Ban.

But, can the skills of the craftsmen really be as high as this?
Fang Xiaoru frowned slightly, feeling a little disbelieving, and even doubted the technology Li Wei mentioned.Amid the cheers of the students, the paper plane flew four to five meters high before falling down.

Li Wei walked off the stage and picked it up, then took it apart and began to explain the principles to the students and gave them homework, which was to let them make this thing by themselves.

The experiment of gloves on fire is still a bit dangerous and is not suitable for these students to try by themselves, but this thing is no problem, and this thing is also complicated, which is suitable for cultivating students' hands-on ability.

After working hard for a long time, Li Wei finally taught the production method to these one hundred and eight generals, and explained the principles to them in detail, hoping that they would study hard and become his help in the future.

It has been almost two years since Li Wei came to Ming Dynasty. There are many things he wants to do, but he has never done it until now. It’s not that he doesn’t know how to do it, but he really has no energy. A person’s energy is always limited. He has to be the Minister of Industry. To do it, the Minghuang Chamber of Commerce also has to be busy. This is almost equivalent to the workload of a listed company CEO plus senior officials. Now there is an academy. Even if he is often lazy and delegates all the work that his subordinates can do, he is still busy. Don't come.

If he doesn't quickly cultivate a group of capable students as assistants, I'm afraid many of his ideas will only remain in the idea stage.

After asking the students to pack their things and go back to the room, Li Wei and Fang Xiaoru also returned to the office.

The two rested for a while, and Fang Xiaoru finally couldn't help but ask: "Master Li, is the technology you are talking about these craftsman skills?"

"more or less."

Li Wei was slightly startled when he heard this and said casually.

In fact, it is right or wrong to say that technology is craftsmanship. Craftsmanship is just a form of scientific application. In fact, the application of science and technology covers all aspects of society, and it is not just as simple as craftsmanship.

But Fang Xiaoru couldn't understand what he said now.

"With these craftsman skills, can one person really cultivate a hundred acres of land and produce more than ten shi?"

Fang Xiaoru asked suspiciously.

Li Wei glanced at him and understood that he had doubted the value of technology.

After thinking about it, Li Weidao said: "You should have seen that when the kettle is boiling water, the lid of the kettle will be pushed open and jump, right?"

Fang Xiaoru nodded slightly: "I've seen it before."

"That's OK. Look, if I connect this pot lid to a pole, and then connect the pole to the wheel, as long as the structure is designed appropriately, will it be able to push the wheel to rotate?"

Fang Xiaoru frowned and said, "Impossible. It's impossible for something as small as a pot lid to lose its wooden wheel like a waterwheel."

"Why not? I might just use a larger kettle, or a smaller wheel." Li Wei stressed.

Fang Xiaoru thought for a while and felt that this was not impossible, so he reluctantly nodded and said:
"Well, even if it can, so what?"

Li Wei glanced at him disdainfully, what else could he do? It would be able to promote the industrial revolution!

"Since it can push the wheels, if I make it into a car, can it run as long as it is lit on fire? If I install a plow on this car, can it replace the ox? If I install a rotating sickle, can it be used? Come to cut the wheat? As long as this is done well enough, it will be easy to cultivate a hundred acres of land, and only one person is needed to operate it."

Li Wei briefly talked about the harvesters of later generations. Although it was impossible to use a steam engine to make this thing, there was nothing wrong with explaining it to him. Anyway, he didn't understand the difference between a gas engine and an external combustion engine.

Although Fang Xiaoru still found it unbelievable, after thinking about it carefully, it seemed possible, and he was doubtful for a moment.

"Can you really make something like this?"

Li Wei curled his lips and said confidently: "You will see it!"

It is difficult to make an internal combustion engine, very difficult. The biggest technical difficulty is precision machining.

It is not like a steam engine, and the leakage works just as well, but it is less efficient.

Although he doesn't need to try various fuels one by one like those scientists in the past, nor does he need to verify various scientific theories, he can do it directly.

However, without suitable materials and sufficiently precise processing equipment, he couldn't make many things even though he knew how to make them.

　Ask for a monthly pass

　　
　
(End of this chapter)