A huge stone.

Let Yuan Tiangang and others be helpless.

But now, Chen Chu has people under their noses and successfully put it down on the four-wheeled vehicle.

Watch as those craftsmen stepped forward and used thick ropes to connect the four-wheeled vehicles.

Yuan Tiangang was dumbfounded and asked, "Senior brother, I don't know something...... This holy stone, extremely heavy, has stood here for hundreds of years, and has not moved for half a minute, why can you find dozens of people and bring it down? Can humans really do that? ”

In Yuan Tiangang's view, this kind of thing is beyond the reach of manpower.

Chen Chu said: "Senior brother, your suspicions are not wrong, this kind of thing can't be done by manpower alone...... But you can do it with tools, when I built the mansion, in order to save time and effort, I invented many tools, there are pulleys, levers, mechanical arms, among them, the most important is levers and pulleys, once a person said, give me a fulcrum, I can pry the whole planet, and this boulder, in fact, is not as heavy as imagined, naturally can also be pried. ”

Yuan Tiangang's eyes lit up, he suddenly grabbed Chen Chu's sleeve excitedly, and asked, "Senior brother, what do you mean by this lever?" ”

It is very difficult to explain the principle of leverage to an ancient person.

Seeing that the boulder couldn't be transported away for a while, Chen Chu simply pulled Yuan Tiangang and came to the side not far away.

In the clearing, there was a knee-high stone.

Chen Chu pointed to the stone and asked, "Senior brother, can you pick it up?" ”

Yuan Tiangang stepped forward and used all his strength, his face turned red, but he didn't pick it up, he smiled: "I'm old, I can't hold it." ”

Chen Chu didn't laugh, but asked, "Senior brother, do you think anyone in this world can lift it up with one finger?" ”

A finger?

Yuan Tiangang's expression changed.

Zhang Sifeng and the others all stared wide-eyed.

Yuan Tiangang smiled and said: "Senior brother, you are really joking, this stone, to say the least, is two hundred catties, some strong men can pick it up, but to say a finger, it is a bit alarmist." ”

Zhang Sifeng said: "Yes, uncle, you can't scare me and wait." ”

Others mean the same thing.

Chen Chu beckoned into the distance.

Cheng Chubi rushed over and asked, "Uncle, do you want to fight?" ”

Chen Chu: "......"

Everyone: "......"

Chen Chu said speechlessly: "Chu Bi, go and get our lever." ”

"Oh!"

It didn't take long for Cheng Chubi to come over with a few craftsmen.

The craftsmen drove a horse-drawn carriage.

The tools were taken down from the wagon and the assembly began.

In a short time, next to the boulder, a thing similar to the horizontal bar of later generations was installed more than one person high.

Then, take out a wooden pole that is more than two feet long.

The wooden pole is carried on the horizontal bar, and the short end is tied to a rope, and the two hundred pounds of stones are tied under the rope.

Chen Chu smiled slightly, walked to the long end of the wooden pole, looked at Yuan Tiangang and the others, stretched out his right index finger, and pressed down the top of the wooden pole.

The stone on the opposite side was brought up.

Everyone was stunned.

It turned out that what Chen Chu said was that this is what he meant by lifting this big stone with one finger.

The corners of Yuan Tiangang's mouth twitched.

Zhang Sifeng said with some disdain: "Uncle Shi, this is too simple, and the ancient craftsmen already had such tools in the process of construction. ”

Chen Chu walked over, clapped his hands, and asked, "Is it simple?" ”

Zhang Sifeng said: "It's a little simple......"

Chen Chu sneered: "Then do you know how long it takes to pick up something weighing a hundred catties?" ”

"This ......"

Chen Chu asked again: "What about five hundred catties?" What about a thousand pounds? ”

Zhang Sifeng was stunned.

Chen Chu asked again: "Then do you know, this stone has two hundred catties and two zhang of leverage, how much strength does it take to lift it?" How much effort does it take to keep the ends parallel? ”

Zhang Sifeng: "......"

Most of the rest of the Taoist priests were also confused.

The use of leverage has actually existed since ancient times.

But it's just an empirical exercise.

As for the distance, no one has studied it deeply.

Therefore, Chen Chu asked Zhang Sifeng and others a few questions.

Chen Chu looked at Zhang Sifeng and said with a smile: "Senior nephew Zhang, this is only preliminary, I can tell you that my craftsmen have just put the boulder down, and the pulley used is also a kind of lever, but it is more advanced and more sophisticated, do you understand?" ”

"I ......"

Zhang Sifeng was speechless.

Chen Chu waved his hand: "You guys, you are old, you are not good at studying, I am too disappointed in you......"

As he spoke, he waved his hand: "Chu Bi, let's go!" ”

"Let's go!"

"Let's go!"

The ox-cart and horse-drawn cart had already been tied to the four-wheeled cart under the boulder.

The craftsmen also pulled up a long rope in front of them.

Chen Chu gave an order, and the four-wheeled vehicle transporting the boulder set off slowly.

The boulder, which originally looked so heavy that no one could move it, actually looked a little light on dozens of four-wheeled vehicles.

Yuan Tiangang looked at the huge convoy, and then looked at the lever next to him that Chen Chu did not let people remove, and suddenly fell into deep thought.

He said to himself: "We cultivators have always wanted to surpass the power of nature, but for thousands of years, no one has been able to do it, and now, the junior disciple has actually done it, could it be that what he is practicing is the authentic Taoist immortal art?" And what we are cultivating is just a small path? ”

Thinking about it, he said to the people around him: "Come on, take this lever away, bring it back to the three-day view, I want to think about it well, I want to think about it......"

Zhang Sifeng stepped forward and said, "Uncle Shi, these wooden poles are not worth mentioning......"

Yuan Tiangang said unhappily: "What do you know? Perhaps, there is a lot of meaning in this...... Senior nephew, now that the matter of the Holy Stone has been resolved, the Baiyun Temple will definitely be affected, so you have to do it yourself. ”

With that, Yuan Tiangang left in a hurry.

……

Early in the morning, upstairs in the city of Chunming Gate.

The gates have not yet been opened.

In the distance, it was foggy.

The fog will not dissipate until the morning sun rises.

A soldier, rubbing his sleepy eyes and holding a spear, looked out of the city.

At this time, a lot of people had gathered outside the city.

are all those low-level people who can't gain a foothold in Chang'an City and can only live outside the city. Seeing that these guys couldn't even enter the city, the soldier's frustration of standing guard all night would be swept away.

But something wasn't right today.

He stared wide-eyed, but did not see the gathered people.

Instead, I heard the sound of footsteps and shouts.

"One-two-one!"

"One-two-one!"

The voices are getting closer.

Then, the soldier saw dozens of horses suddenly coming out of the thick fog in the distance.

Then, a black, enormous, enormous, huge thing, which looked like a stone, came straight toward the Yongning Gate.

The soldier screamed: "Mother, it's so big, I've never seen such a big siege ......"

The so-called siege wood is made of thick tree trunks, and the front is wrapped with iron sheets, and it is used to break open the city gate during the siege.

This soldier had also participated in the war, but he had never seen such a mighty siege tree.

……