The thing is indeed useful, but how can you transfer these carpenters to their official positions just by relying on this slide without a ladder pole?

Mr. Lang, do you think Jingzhou Dazhongzheng (the official responsible for distinguishing talents and recommending scholars and officials) is a fool?

Li Song's face was full of weirdness.

At first glance, he knew that Li Song had misunderstood. Li Chengzhi snorted: "Come and take a look!"

He pointed to the things on the ground: "In addition to the slide, there are also these pulleys, which can be placed everywhere on the wall of the village and can be used to lift ice, water and other lighter things..."

There is a stone brick lying flat on the ground, with a wooden stick stretched across it, and a thread pulley stuck on the wooden stick, which looks like it was taken out of a carpenter's ink fountain.

Li Song could understand at a glance. He only needed to treat the stone bricks as a village wall, and enlarge the wooden sticks and string pulleys several times, and it should be the "pulley" that Lang Jun said.

It's really very simple. All you need is a rafter, a hemp rope, and a carpenter to cut a big wooden wheel. It's not much more difficult to make than the slide, and it uses very few materials...

Li Song looked at Li Chengzhi in surprise.

Let’s talk about the slide first. Although it is easy to use, it is not unusual. He and the carpenter just didn’t think of it for the time being.

And it's not very useful, it's mostly used for skating.

But this pulley is a little bit complicated.

It can be used whether building walls, houses, or even city walls. There is no need to set up bulky supports or use the laborious method of rolling logs to move things to the city wall.

As long as the pulley is strong enough, even huge rocks can be hoisted...

Before he could recover, Li Chengzhi pointed to the open space next to him: "If you want to lift heavy objects, you can use this, but it won't be built for a while, but we are just building an ice wall, so we won't use it for the time being...

…”

besides?

Li Song's heart skipped a beat and he looked at where Li Chengzhi was pointing.

There are several rose shapes painted on the snow, including wheels, gears, and seemingly iron hooks and chains.

"This is called a reverse chain. It only takes one person to lift a thousand kilograms of objects. But it requires good steel. I asked them to make a wooden one according to the pattern first and try the quality. When I have time in the future, I will find some

A good blacksmith, I will teach them how to make it..."

The structure of this thing is very simple and the technical content is not high. In his previous life, Li Chengzhi often went to mining areas and industrial parks. He often saw this thing. It is not difficult to imitate it from memory...

Can one person lift a thousand pounds?

Li Song's expression changed.

"How is that possible?"

"How is it impossible?"

Li Chengzhi sneered and said, "When has your husband ever said that I was unsure?"

Just this sentence made Li Song choke and unable to speak even a single word.

This is really the case...

When rescuing Hu Baozong, Lang Jun kept saying that he was not sure, but in the end he didn't see him in any trouble, so he didn't rescue Hu Baozong easily?

Also, don’t you know whether this method of watering water to build a city is useful?

A secret technique that allows one person to lift a thousand pounds...

Li Song's heart skipped a beat and he narrowed his eyes, staring coldly at the carpenters.

The minds of these people who were bewitched by Li Chengzhi were agitated. They forgot the etiquette for a moment, so they dared to be so casual with Li Chengzhi. They woke up when they bumped into Li Song. At this time, they were frightened and wondered how Li Song would punish them. Goodbye Li

With Song's appearance, he immediately knelt down in fright.

"Master Li, spare your life..."

"It's okay. Why are you trying to scare them?"

Li Chengzhi glared at him fiercely.

He still has great use for these people...

Li Song pondered for a moment and took Li Chengzhi a few steps further: "If what Lang Jun said is true, this thing is a work of art... How can such a sharp weapon be given to such thieves?

The husband is a nobleman, so naturally he does not need to take care of it himself. I will go now and select a few retainers with good character and at least be literate..."

"Ingenious workmanship?"

Li Chengzhi glanced at Li Song with disdain: Do you really dare to brag?

But if you think about it carefully, if you don't understand the principle of differential pulley, you really can't make it.

But the professor is exempt...

Mere literacy is of no use, only practice can produce true knowledge!

These carpenters are very capable. Although they don't understand the principle, they can make it as long as Li Chengzhi explains it to them.

If it were a retainer's son, loyalty would be enough, and Li Chengzhi would have to tell them from the beginning...

Not to mention whether they can understand it, the main reason is that Li Chengzhi doesn't have the patience.

A chain hoist is nothing, Mr. I have so many good things in my head, and I will teach them one by one. I probably won’t be able to teach them all until I die...

Li Chengzhi said impatiently: "If they really want to learn, let them learn from these carpenters... But you have to warn them and be respectful. I still have great use for these carpenters... Who dares to show off to me?"

I took off the young master's arrogance..."

"Let them learn from carpenters?"

The expression on Li Song's face seemed to be frozen.

The servants of the Li family are not just slaves. They are not only members of the Li clan, but also servants who fought with Li Chengzhi's grandfather and father, as well as soldiers who protected them.

It's similar to Hu Baozong's team of generals.

Although he is a civilian household, he is a high-ranking citizen and has reached the level of "scholar".

For example, if Li Shixian relents and Li Song is willing, Li Zhang and Li Xian can be promoted to military attachés under the conditions...

Normally speaking to a craftsman is like being humiliated, but now you want them to be students of untouchables?

Are you kidding me?

"Then there's nothing we can do!" Li Chengzhi spread his hands, "I don't have the time to teach them from scratch..."

Want to eat mutton, but don’t like mutton’s fishy taste?

How can there be such a reason...

Li Song froze. After being embarrassed for a long time, he gritted his teeth and said, "I know..."

If such a secret technique was allowed to spread and other families took advantage of it, Li Song would not be willing to die.

Even from the perspective of confidentiality, people must be sent to watch these carpenters die...

His two sons don't even think about it. They don't have any cleverness in their minds, they are all pretending to be strong.

It is impossible to learn how to make a reverse chain, but you are a good hand at pulling this reverse chain...

However, the two nephews are smart and clever. If they discuss it with their brother carefully and explain to him how powerful they are, they will definitely not refuse...

It didn't take long for Li Song to make up his mind, and then looked at Li Chengzhi with complicated eyes.

Mr. Lang, how do you explain this pulley and reverse chain?

He became more and more certain that what Li Chengzhi said about "dreams entrusted by gods" was true.

After hesitating for a while, Li Song asked in a low voice: "This pulley and inverted chain...which book did Lang Jun read about it?"

It means I want to see how you make it up.

"Let's not talk about the reverse chain. This pulley is also used for reading. Isn't it available everywhere..."

As soon as he replied halfway, Li Chengzhi reacted suddenly and stared at Li Song angrily and funny.

Li Song was led into a trap by himself. Whenever he saw something strange, he would get involved with gods and ghosts...

After finally holding back his laughter, he asked: "Li Song?"

"Servant is here!"

"The brain is a good thing. It can be used, but it is better to use it more..."

What do you mean, Mr. Lang is calling me stupid?

Li Song looked at Li Chengzhi with a puzzled expression.

"Don't believe it... Hahaha..." Li Chengzhi turned around and pointed at the well not far away, "What is that?"

windlass?

Well, that's not right...

Lang Jun's pulley, isn't it just a simpler windlass?

The reverse chain is similar to a winch...
Chapter completed!