Zhao Si told Jian Chen about the land of Youmiao, and Jian Chen gave him some money and asked him to contact some people who could fight and dare to fight against the enemy. Pen & Fun & Pavilion www.biquge.info this is his business, he has a wide range of contacts at this point, and Chen Jian gives a lot of money, and it is clear that the rest is his, and he is even more happy.

The bamboo was shipped back, the master of the bombing mine was invited, the students found it, and the school had already been built.

But most of the young people who have been enlightened are not too keen on going to school, or their parents are not very keen on it.

If you don't learn the extreme, no matter how many words you recognize, how much you learn arithmetic, and how much you know nature, you can't get money.

Parents raised them to earn money, not to send them to school.

In this regard, Chen Jian used a special method.

The new Lanxiang Technical School has a special school system, and Chen Jian pays for these children to go to school, and at the same time ensures that he will arrange something to do after school.

However, a contract must be signed, and if they don't do what Chen Jian arranged, but find a way to jump elsewhere, then they will have to pay a hundred times the tuition fees, food, etc. paid by Chen Jian in advance, for ten years.

Such an obvious physical restriction was exchanged for the enthusiasm of young people and parents, and for a time it was overcrowded and flocked.

Everyone knows that now in Nan'an or Mincheng, Chen Jian has a lot of industries, and the salary in it is good, and Mr. Chen is a good person, and it is much better to work here than elsewhere.

Especially after graduation, this is something that some people dream of, let alone ten years, they even want to sign for a lifetime.

These young people have not yet realized their own strength and future needs, do not understand that they will become a real class of employees in the future, and do not understand that they will be the representatives of the advanced productive forces mentioned by Chen Jian in the future.

Several classes of Lanxiang Technical School have carried out simple industrial and technical worker education classes, and they are still learning to count and recognize words, because it is difficult to find a teacher who teaches nature.

The newly recruited group of people skipped the process of learning arithmetic and literacy, and directly began to learn technology, or explore technology.

In the eyes of some young people, Jian Chen is just idle, has nothing to do, and is full of food.

But if you have money, food, and a stable job for ten years after completing your studies, it is said that the salary is acceptable, and no one will say anything.

There were 50 students in this group, and 10 of them were divided into 10 people to learn how to cut bamboo, make mortise and tenon, and pass bamboo joints with an invited master.

The other forty people were dragged by Chen Jian to learn from labor and production from the first day they entered the school.

In a place near the workshop, where there was apparently no spring water, Chen Jian asked them to dig a well.

Young people don't care why they dig wells, if they let them dig them, they dig them.

In half a month, a large pit was dug one foot square, and no spring water seeped out, and the bottom had exposed a rock layer.

When the rock layer was completely cleared, the students told Jian Chen.

Chen Jian also asked them to move stones, learn to mix cement, and build this large pit one foot square to prevent it from collapsing.

This large pit is about four meters deep, and it is not difficult to build such a large pit. Especially with wooden rails and cement, this kind of work is easier.

When more than 40 people were building the pit, a large number of bamboo was transported to the vicinity.

Chen Jian found Huang De, and invited a master bamboo craftsman to make a winch out of a large amount of bamboo.

By the time the winches, ropes, bamboo strips and other utensils were ready, the large pit that was more than four meters deep and had exposed the rock layer had also been laid.

According to Chen Jian's request, the surrounding earth walls were completely supported with stones and cement, leaving a half-foot square wellhead, but this well was a dry well with no water.

After the conductor erected the bamboo winch and placed it at the mouth of the well, Jian Chen called the group of students under the winch.

"You have to learn to dig wells."

The young people were puzzled and asked, "But this is not how the well is made, but it is necessary to dig a pit that can accommodate people, and put stones and bricks from it." Besides, it doesn't look like a place with water at all. Mr. Chen, if you want to dig a well, we recommend that you dig it near the col to the north of the workshop, where there should be water. ”

Jian Chen smiled: "Who said that digging a well is just to dig water?" Besides, who said that you have to dig a well like you do? Let me ask you first, have you learned everything you have learned before? ”

"Yes. How to make cement, how to pile stones, how to dig pits...... It's all going to be. ”

"What's the difference between sitting in a classroom and listening to people?"

The young people laughed and said, "I can understand what I say, but it's another thing to do." Sometimes the truth is true, but the actual operation is different. ”

Jian Chen nodded and said, "That's right." On paper, I finally feel shallow, and I never know that I have to do it. I'm just a gentleman on paper, and I have to do it up to you. ”

He pulled out a bunch of blank notebooks and a bunch of graphite pens.

"I can only give you a rough idea of how to do it, and you will encounter all kinds of problems. When you do it, write down all the problems you encounter. How to solve it, also write it down. Something went wrong, and whoever could come up with a solution to it was rewarded with ten silver coins. ”

"Pick two people and check everyone's records every day. If you have a problem, write it down and give it back to me. ”

"Now, the gentleman on paper is going to reason with you."

"Start class!"

More than 40 people sat quietly on the small horse, and Chen Jian asked someone to carry the blackboard and various tools.

"Today, let's talk about how to dig this well."

The principle of a simple winch and a manual animal percussion drill was drawn on the blackboard, with a heavy drill bit forged from crucible steel in front.

This is a very heavy drill bit, the top is round, but the bottom is not round, but has an inclined angle, and the hardness is excellent after quenching.

Everyone looked at the drill bit, and Jian Chen wrote a few words on the blackboard, then turned around and began to talk to the students again.

"To dig such a well, first dig a pit. After digging until the layer of stone is exposed, it is impossible to dig any further, so the big pit is built with stones. ”

"That's what you've learned, let's talk about how to dig a well with this steel drill bit."

After speaking, Jian Chen picked up an iron drill from the side, pointed at the stone next to him, and slammed it down from top to bottom.

After a few strokes, the stone finally shattered.

"That's pretty much it. Lift this steel drill bit, hang it high with a winch, and smash the stones below little by little by the impact of the fall. ”

"Why is the underside of this drill bit biased? Because it has to be broken from all sides to the middle, if only the middle is sharp, the consequence of smashing too much is that the middle is broken and the four sides are not broken. ”

Jian Chen picked up a stone chip and said with a smile: "The surrounding area is broken, and the middle must be broken." If the middle is broken, the surrounding area may not be broken, because the surrounding area is connected to a wider circumference. ”

"So when you smash it, you have to keep the drill bit spinning in circles, so that the stones around it are broken, and then the well will naturally break out."

The students were not surprised by this new method of digging wells, the principle was simple, and everyone knew that falling down could break rocks.

Just looking at the one-foot-square "wellhead", a student raised his hand and asked, "Mr. Chen, you can take out large stones, but what about small debris?" Besides, if everything is smashed, the well will only be rubble. How do we drill into such a small well? ”

Chen Jian asked everyone to stand up, and stood next to a clay pot that had been prepared long ago, and it was full of mud and sand, which was sticky with the water.

I picked up a bamboo tube that didn't look strange, stuffed it into the clay pot, and then lifted it vigorously.

In the amazement of everyone, Jian Chen turned the bamboo tube upside down, and a large amount of mud flowed out from the upper part in an uproar.

The students were stunned, this bamboo tube was too peculiar. Muddy water can get in from below, but it can't come out from underneath.

Hand the bamboo tube over for the students to see.

After dozens of pairs of hands, the sense of mystery full of amazement just now dissipated in an instant.

A few people sneered and shook the simple little bamboo tube, no longer as cautious as before.

It is a bamboo tube, and inside the bottom of the bamboo tube is a half-fixed calfskin, surrounded by a flange made by bamboo joints.

Just glanced at it, and understood.

It is nothing more than when the bamboo tube is stretched into the bottom of the water, the water will push the calfskin into the bamboo tube, pushing a gap into the bamboo tube.

When the water surface is lifted upwards, the muddy water in the bamboo tube will naturally press the cowhide downward, and when it reaches the flange, the gap between the cowhide and the bamboo tube disappears.

Therefore, the sediment can only go up from the bottom of the bamboo tube, but it cannot fall down from the bamboo tube.

Very simple thing, a couple of rough young boys couldn't help but laugh weirdly.

What I learned today smells like a bed.

Either you poke a drill into the small round hole; Either it is to open a layer of skin film; And when the top film has to get some water can't dry, if it is dry, you have to find a way to add some water.

A few people who laughed badly thought that this was used to dig a well, and what was the purpose of digging a well?

So someone asked malily, "Mr. Chen, how can we be considered to have learned?" ”

"Water is coming out of the hole."

Several people laughed, they liked this kind of meat talk the most when they were young, and Chen Jian didn't blame them, but said: "It would be better if you could make up the technique of drilling wells into a smooth piece of meat talk." Tell the layman to blush or harden when he hears it, and let the insider understand and smile ambiguously when he hears it, I will pay you to go to the kiln shop to find a woman. ”

In the end, how to push the bamboo down, how to connect the bamboo to make the well wall to prevent water seepage, how to pull the winch with a cow, and how to clean up the mud inside.

"Now I'm done with the paper stuff for you. It can be said that my husband is the end. After that, you're a gentleman, maybe I'll have to ask you again. ”

"It sounds simple, but many skills are learned and summarized in labor, and you are the ones who perfect this drilling technique. If this drilling technique is successful in the future, your name will definitely be left behind. ”

"Now the upper wall of this well has been laid for you, and the Nanzhu and bamboo winch cows have been prepared for you. But there are many more questions, and I can't teach you. ”

"What should I do if I hit it crooked? How do you know if you're hitting straight or not? How to fish the drill bit when it is broken and hung in the well? What kind of tools are more convenient to remove large gravel? How many times do you usually change the angle of the drill bit? What height is the most efficient and the drill bit doesn't crumble? ”

"I'll leave that to you."

Jian Chen bowed to the young students and thanked them, then pointed to the well, which had already been built, and said, "Let's start with this well." When the water is hit, one person has a silver coin and pocket money. If this well is finished, then four more will be drilled, in any location, but it must be a mile away from this well. ”

"After the four wells are drilled, you will be considered to have learned. If you want to stay in the school as a gentleman, you can, if you don't want to be a gentleman, I will find you a good job, tired is tired, but the salary is absolutely satisfactory to you. ”

"Again. Write more, ask more, think more, ponder more. I look forward to your early completion. ”

Everyone looked at the stone wall around them and asked, "Mr. Chen, you don't want to dig a well, just let us practice digging a well?" ”

"When it will be useful, the place where the well should be drilled is there, and you can't run. Besides, after signing the contract, even if I don't need you after I finish my studies, I will still pay my salary, is it possible that you are afraid that I will not be able to pay this money? ”