Into the depths of the mine,

walked a distance of nearly 100 meters,

At this time, I can't see the light outside.

Only crackling torches,

Bring a little light to this dark space.

has gradually adapted to the environment here,

Lu Bu walked over to an upright wooden utensil,

This thing is shaped like a fan,

It's just a lot bigger.

The height can almost reach Lu Bu's chest,

The width is almost the same as the height,

There is a handle on one side.

Lu Bu grabbed the handle,

Slightly forcefully turned twice,

The blades made of wood slowly turned,

A breeze sent to the suffocating mines.

Niu Er hurriedly spoke:

"General, this is a fan, our mine is very stuffy,

Just rely on this thing to bring some coolness to the big guys. ”

Lu Bu nodded,

casually asked,

"Does this fan have to be operated by someone next to the crank when it works?"

Niu Er nodded vigorously,

Hurriedly spoke:

"That's right, every fan needs to be controlled by a special person."

"And how many fans are there in this mine now?"

Niu Er replied without thinking:

"Nowadays, there are ten fans, and there is basically a fan every fifteen zhang or so."

Lu Bu nodded and asked:

"In other words, the depth of this mine is about one hundred and fifty zhang now?"

"Yes, yes, to be exact, it should be more than 180 zhang."

Lu Bu nodded expressionlessly,

Lost in thought, he didn't speak.

Niu Er saw that Lu Bu didn't speak for a long time,

thought he wasn't happy with this depth,

Hurriedly explained:

"General, it's not that this mine can't continue to dig into it, it's just that there is a shortage of manpower......

Lu Bu raised his eyebrows,

Seeing Niu Er's anxious look,

understand that the other party has misunderstood,

He waved his hand and said:

"I didn't mean that, don't be nervous. As you work in it as the depth increases, do you feel any changes? ”

Niu Er's expression was a little fixed,

After hearing Lu Bu's question,

Tilting his head and thinking carefully for a while,

Only then did he slowly reply:

"The further down you go, the more difficult it is to excavate. Where there is ore, it is good to say that those rocks are really hard, and it is very difficult to excavate. ”

While talking, he peeked at Lu Bu's expression,

found that Lu Bu did not mean to blame,

Niu Er pretended to have the courage to continue:

"And even though there is this fan, it still gets more and more stuffy the more you go inside, and the temperature is getting higher and higher, which is why the brothers are reluctant to wear those protective equipment."

Nodding, Lu Bu raised his hand,

motioned for Niu Er to continue.

Niu Er had never been in contact with Lu Bu before,

Lu Bu's angry appearance really scared him.

Though he was a steward,

After all, it's an ordinary person,

Even a figure like General Zhang didn't dare to be presumptuous in front of Lu Bu,

And he was even more afraid.

For fear that I will say the wrong thing,

Annoyed this big man.

Turning his head for help, he looked at Zhang Yan for help,

Who expected Zhang Yan to see Niu Er's actions,

Immediately his expression changed drastically,

Hurriedly waved his hand and said:

"Niu Er, what are you watching me do. When the lord asks you, what do you say? ”

Lu Bu saw Zhang Yan's nervous appearance,

I can't help but laugh,

He naturally understood why Zhang Yan was nervous.

Zhang Yan was originally the remnant of the Yellow Turban,

It didn't take too long to take effect,

And some time ago, there was a Lou Wu rebellion,

Although Zhang Yan has made great contributions,

But in the eyes of many people,

Their old yellow turbans are still labeled.

Now although Lu Bu trusts him,

even put the Ugin Mountains in his main responsibility,

But he worked day and night,

On the one hand, because of Lu Bu's valuable trust,

On the other hand, it is also shown to Lu Bu,

Let Lu Bu understand that he, Zhang Yan, and the brothers of the Yellow Turban,

It's a sincere effort.

But when Niu Erfang was answering Lu Bu's question,

But he looked at him,

Isn't this telling Lu Bu,

These people only know that there is Zhang Yan,

Don't know about Lu Bu.

If Lu Bu is suspicious,

This alone is enough for Zhang Yan to never turn over.

Zhang Yan also wanted to explain,

Lu Bu said with a smile:

"Xianzhong, don't be too careful, I believe in you."

Zhang Yan saw the sincerity and trust in Lu Bu's eyes,

My heart is on fire,

Moved to bow his head.

Lu Bu then turned his head,

said to Niu Er:

"Don't worry, you can boldly say that since I asked you, I just want to know some real information."

"Oops, okay, okay."

Niu Er nodded hurriedly,

Only then did he have the courage to speak:

"General Lu, then I'll tell you the truth. Our brothers are very comfortable working here, and we are tired, but whether it is Mrs. or General Zhang, we are very good to our brothers, we can eat well, and our monthly wages are quite high. ”

Xu saw that Lu Bu was not to blame,

Niu Er's courage also increased,

Fluently continued:

"But our brothers, at the beginning, they all participated in the uprising of the great sages and good teachers, and the family is long gone, and many brothers are even singles, without a father or mother to Zhang Luo for these things, and the work we do is not in vain or black......"

Niu Er hasn't finished speaking,

But Lu Bu and the others completely understood what he meant,

Zhang Yan and Zhang Da looked at each other,

The look on his face is strange,

Lu Bu laughed directly,

Laughter echoed in the mines,

It's even more deafening.

"Hahaha, that's right, that's the most important question."

Lu Bu raised his right hand,

Pointing at Zhang Yan's nose, he said:

"Zhang Xianzhong, this is your mistake, such a big thing, why don't you help your brothers. People say that parents are officials, parents are officials, and those who are officials naturally have to worry about the people, and if you don't do this well, I will punish you. ”

Lu Bu had a smile on his face,

Zhang Yan and Zhang Da both know that

Lu Bu was joking.

But since Niu Er finished saying the previous words,

Lowered his head in embarrassment,

didn't see the look on Lu Bu's face,

I thought he was really angry,

Because Zhang Yan is to blame for this incident.

Hurriedly 'plopped',

Falling to his knees, he hurriedly spoke:

"General Lu, don't blame General Zhang, it's a little insatiable. General Zhang and they work hard every day for the sake of the big guys, and General Zhang himself hasn't married a daughter-in-law yet, so don't be angry with him. ”

Hearing Niu Er's explanation,

Lu Bu smiled even more happily,

Even Zhang Da on the side covered his mouth and laughed secretly.

Zhang Yan was made red-faced,

Fortunately, the fire in the mine was dim and could not be seen clearly.

Zhang Yan walked two steps quickly,

came to Niu Er's side,

This guy is still babbling,

was so angry that Zhang Yan kicked him in the ass,

Niu Er almost fell to the ground with a dog chewing.

Raising his head, Niu Er looked at Zhang Yan suspiciously,

Zhang Yan pursed her lips,

Angrily shouted:

"Don't hurry up yet, shame on you."

Lu Bu stepped forward,

patted Zhang Yan on the shoulder,

Lift Niu Er up from the ground,

Naturally, slapping the dust on Niu Er's body,

Opening:

"Niu Er, this opinion you made is very good. This matter is particularly important, don't worry, we will help you solve this problem as soon as possible, I promise you! ”

Still a little puzzled why Zhang Yan was angry,

However, after hearing Lu Bu's assurance,

Niu Er smirked happily,

"General Lu, let's talk about it."

Rubbing his hands, he continued with some embarrassment:

"That, can you tell me a daughter-in-law, I'm also a bachelor."

glanced at Zhang Yan,

found that the other party was staring at him with a pair of bull's eyes,

As if I was going to kick it,

Hurriedly covered his buttocks, which was still a little painful,

Jumped to the side and spoke:

"I'm not in a hurry, I'm not in a hurry, you can put me behind General Zhang...... Oops, why kick me again! ”

"Kick you, you shameful thing!"

Zhang Yan was making a gesture to chase Niu Er,

He scolded angrily.

Only then did Lu Bu open his mouth to stop the two,

"Okay, okay, don't make a fuss. Loyalty, what Niu Er said is also a very important thing, you can't be lazy. ”

Zhang Yan still felt a little embarrassed,

But he still agreed: "Wow! ”

Lu Bu led a few people,

Then head deeper into the mine.

As the depth increases,

The air down there isn't so dirty,

But the temperature is slowly rising,

It gives a very stuffy feeling.

Lu Bu carefully examined his surroundings,

From time to time, he opened his mouth to ask Niu Er and Zhang Yan beside him.

"Niu Er, how to solve the problem of workers eating and drinking?"

Niu Er hurriedly replied:

"Back to the general, we have a canteen outside, and we will prepare meals for the workers. However, in order not to lose time, the workers will bring food here to eat. ”

"Eat here? Isn't all the food cold? ”

Niu Er shook his head and said with a smile:

"General, you're wrong. If you bring the food to the bottom of this well, not only will it not be cold, but it will taste unique. ”

"Why is that?" Lu Bu asked suspiciously.

Shake your head like a rattle,

Niu Er said: "I don't know about the small one." ”

Turning his head to look at Zhang Yan and Zhang Da,

Both nodded, and replied:

"It's true, we've all experienced that the same food, eaten at the bottom of this mine, tastes much better than the outside world."

Lu Bu thought for a while,

I don't know what caused it.

Such a result appeared.

Since I don't understand,

Then I don't have to worry about it anymore.

He then asked:

"Do the workers transport the ore and the excavated rocks in baskets?"

"That's right, there is no other way but to use the back basket."

"Why don't you use a vehicle to transport it?"

Zhang Da opened his mouth to explain:

"The road inside the mine is bumpy, it is difficult for vehicles to pass, and when you go inside, it is downhill, and the vehicles are easy to walk, but when you come out, the human power cannot push the vehicles."

Zhang Da's explanation,

Lu Bu immediately understood the situation here,

He nodded.

He whispered in his mouth:

"In this case, the efficiency is too low, and we have to find a way to solve this problem."

Lu Bu used his brain to think,

While pacing back and forth in the mine.

"The ground is rough and difficult for vehicles to pass......"

Repeating Zhang Da Fangcai's words in a low voice,

Suddenly, Lu Bu remembered something,

It was a scene I had seen on TV.

vaguely remembers that it was an old movie about a western cowboy,

The specific storyline was forgotten,

But the background of that movie seems to be the era of the Western Gold Rush,

Digging for gold in the gold mines,

At that time, there was a train as a means of transportation.

But in the mines,

The train is obviously not usable,

Those people used a kind of railcar propelled by human power.

He can't name anything,

But the general principle can be understood.

At that time, it was because I saw that thing that it was new,

I also went out of my way to check some related information.

Closing his eyes, Lu Bu began to carefully recall the machine.

That's a kind of flatbed,

Above the plate is a series of gears,

At the top of the transmission is a long rod,

The length of the long rod is the same on both sides,

Two men stood on either side of the pole,

Hold the pole with both hands and dance up and down,

The ends of the long rod move up and down,

Like a seesaw for a child to play,

And then through that series of transmissions,

Transform power,

enables the flatbed to move on the track,

At the same time, you can control the direction and speed of movement.

Thinking of this, Lu Bu struck each other with both palms,

shouted loudly with joy:

"Hahaha, that's great."

Seeing this, Zhang Da hurriedly asked:

"Lord, but you have thought of a way?"

Lu Bu laughed and patted Zhang Da's shoulder,

said: "Hahaha, Master Zhang, thanks to your reminder, I came up with an idea. Let's go out and study it later. ”

Looking left and right, Lu Bu continued:

"However, the space inside this mine is a bit narrow, and it needs to be widened a little before it can be used."

Although Zhang Da was confused,

But I also know,

This lord has come up with a novelty,

It's also a very exciting thing for him.

Lu Bu instructed Zhang Da to record the three words of the rail car,

Then he led the three of them all the way down to the deepest part of the mine.

Although it is less than two hundred feet from the ground,

But the temperature here is already quite high.

Lu Bu and the others only felt as if they had been fished out of the water.

"Niu Er!"

Lu Bu wiped the sweat from his forehead,

He shouted.

"The villain is here, what do you command, general?"

Lu Bu pondered for a while, then opened his mouth and instructed:

"The temperature here is really high, and the workers must let them drink more water when they work, and if they sweat frequently, if they lack water, it is easy to have a big accident."

"Hey, okay, the villain made a note of it."

After thinking about it, Lu Bu then added:

"In addition, adding some salt to the drinking water supplied to underground workers every day does not require too much, about five bowls of water, mixed with a tablespoon of salt."

"This ......"

Significant loss of water requires replacement of saline,

This is common knowledge in the Hereafter,

However, few people know about it in this day and age.

Lu Bu didn't know how to explain,

He waved his hand and commanded:

"Just do it."

"Okay!"