Traveling through Great Qin: Father Qin Shihuang!

"Isn't it all oil? Why are there distinctions between high and low?"

Obviously, it is difficult for Yingzheng and the others to understand the difference between cooking oil and industrial oil.

"emmm... How should I put this, it's like different plants. Some plants can be used for food, while some plants can only be used as firewood for burning. Industrial oil is used for burning and then An oil that produces power."

"Well, this excavator eats industrial oil, right? Can it move after it's full?"

"It's about the same. It's probably what you understand."

Zhao Che said that it is too difficult to explain modern theoretical knowledge to ancient people, anyway, they can probably understand a principle.

"Then how did this industrial oil come from? Is it also squeezed out?"

"No, industrial oil can only be dug from the ground. After the crude oil is dug out, it can be used after treatment."

"Dig from the ground? Is there oil in the ground?"

Ying Zheng was surprised, this was the first time he heard this theory.

"Of course, there are many things underground, not only crude oil, but also various rich mineral resources. These are all things we need for our future development."

"I see!"

Ying Zheng understood that the land they had been stepping on was actually a natural treasure house, but they didn't know it all the time.

"Is the crude oil easy to dig? How much can this excavator eat in a day?"

Ying Zheng couldn't wait to see this huge monster in action.

"Forget it, dad, the crude oil is in a very deep place underground. With Daqin's current drilling technology, it is absolutely impossible to dig that deep."

Zhao Che shook his head, the system didn't reward him with any drilling equipment for signing in, so he can only think about digging for oil for the time being.

"Then what to do? There is no diesel to eat, and this excavator can't move. Isn't it a waste?"

Ying Zheng frowned, with obvious disappointment on his face.

"Don't worry, I still have some diesel here, enough for the excavator to use for a while, at least it's no problem to complete the work of digging the canal."

"That's good!"

Only then did Ying Zheng heave a sigh of relief. It would be a pity that such a powerful thing could only be seen but not moved.

"Che'er, why don't you show us the power of this excavator first?"

"No problem, but we need to get this out first."

Hearing this, Ying Zheng and the others froze for a moment.

They just thought about how powerful this excavator is, but they forgot that this excavator is now in a secret room underground, how to get it out, can it be carried by people?

"Cher, how did you get this in?"

The person who needs to tie the bell to untie it, Ying Zheng turned around and asked Zhao Che.

"When I got it, I put it here directly."

Zhao Che spread his hands, and the things extracted from the system space cannot be put back, so if he wants to get the excavator out, obviously he can only rely on manpower.

"Sir, I'm going to gather some people right now. I believe that as long as we have enough people, no matter how heavy the excavator is, we can get it out."

As Meng Yi said, he planned to call the army over.

If ten people can't lift the excavator, then one hundred people, if one hundred people can't lift it, then one thousand people, anyway, they have enough people.

"No, I have a way to get it out."

At this time, Zhao Che stopped Meng Yi again.

"If there is a way, don't tell me earlier, talk about it quickly, how to do it?"

Ying Zheng glared at Zhao Che, and hurriedly asked.

"Manpower is definitely needed, Zilong, go find some stronger people."

Zhao Che smiled and gave Zhao Yun instructions.

Zhao Yun's movements were also very fast, and he brought back forty or fifty strong men in a short time.

"It's so murderous. The strength of these people is definitely not weaker than the most elite cavalry in Daqin!"

The first time he saw these people, Wang Jian, as a veteran of the battlefield, was keenly aware of their aura.

These people are the elite among the three thousand white horses, who can be regarded as the elite by Zhao Che, how can their strength be worse?

You know, Zhao Yun was just a small captain of Baima Yicong before he came out.

Although there is a malicious reason for suppressing Zhao Yun, Bai Ma Yicong, who can be a teammate with Zhao Yun, is also very powerful.

"I don't know how many elites like this are still under the young master's hands? Sure enough, what your majesty said is correct. What the young master is showing now is just the tip of his iceberg."

Wang Jian's heart was dark, but at this time Zhao Che had already directed Bai Ma Yi to get busy.

"Each of you grabs a rope and prepares to pull!"

There were countless thick ropes hanging from the top of the secret room, and Zhao Che asked one of his men to grab one.

Following his order, a group of men worked hard together, and suddenly there was a rumbling sound above Ying Zheng's head, and the roof was actually split from the middle.

"So there is a mechanism on the top of this head?"

Ying Zheng couldn't help admiring Zhao Che's generosity in designing the secret room so ingeniously.

"Okay, divide into several teams and go cut the rope over there!"

With the opening of the exit above the head, the secret room was completely exposed to the outside, and before Zhao Che finished, he ordered someone to cut off the rope tied to the side wall.

"boom!"

There was a violent vibration, and the ground under the feet of Ying Zheng and the others suddenly vibrated like this.

"Be careful sir!"

Seeing this, Meng Yi and others hurried to Ying Zheng's side to protect him.

"I'm fine, this must be Che'er's agency!"

As soon as Ying Zheng finished speaking, there was a sudden sense of weightlessness under his feet, and then the whole ground rose up slowly.

"how did you do that?"

"Xianshu, this must be Xianshu, I have heard of it, what is it called the technique of moving mountains and filling seas!"

"Young master, what is going on?"

……

Facing everyone's questions, Zhao Che just laughed.

"Have you seen hanging baskets before? Use a rope to tie the basket, and then pull it up..."

"My lord, what you mean is that you made the entire floor of the secret room into a hanging basket? But with such a large floor, and this excavator, how many people are needed to move it?"

"No one needs to pull it. I have tied steel cables around the ground. The other end is connected to a boulder, and finally fixed on the wall with a rope. When you need to go up, just cut the rope, and the boulder will fall, and the ground will naturally rise. .”

"How big a boulder does this need? I'm afraid it needs a small mountain?"

Although he already understood the principle, Meng Yi couldn't help being a little surprised.

"It doesn't need that much, because there are countless pulley blocks connected between the boulder and the ground, so that only a small force is needed to pry the ground."

"The pulley block? What is this again?"

Ying Zheng and the others looked at each other, wondering how these strange terms could always come out of Zhao Che's mouth.

"The pulley block is actually composed of multiple movable pulleys and a fixed pulley. It is a lever mechanism, and its main function is to change the direction of force and save effort."

Zhao Che subconsciously told him the principle of learning the pulley block when he was in school.

Turning around, Ying Zheng and the others were staring at each other. It was obvious that they were talking in vain.

"I'll show you guys after I go up."

Hearing this, even with Ying Zheng's face, he couldn't help but blush at this moment.

When you were with Zhao Che, they were no different from bumpkins, you couldn't understand what they said casually.

While speaking, the ground of the entire secret room, together with the excavator, has been raised to the outside very smoothly.

"In such a small yard, you actually let you transform so many things, how many secrets do you still keep from me?"

Ying Zheng looked up and saw that the place where the secret room rose was Zhao Che's backyard.

As for Zhao Che's backyard, it also covers an astonishing area, covering an area of ​​over a hundred acres. In the past ten years, he must have spent all of his time renovating his own yard, right?
"Actually, there's no secret, it's just a little hole card, really only a little bit!"

Zhao Che casually smiled, even if Ying Zheng is his own father, but living in this troubled world, everything must be kept on his own, so that he can live longer.

The transformation of the backyard was originally the transformation blueprint rewarded by the system, and Zhao Che didn't need to do it himself, the system completed all the transformation for him.

Don't look at the courtyard's plain surface, but in fact it does hide a mystery.

It is no exaggeration to say that as long as Zhao Che is willing, his mansion can be turned into a war fortress at any time, and it is not an exaggeration to say that it is the safest place in the world.

Even if Yingzheng's Xianyang Palace is captured, there will never be any problems here.

"Forget it, it's good to be careful in everything. I won't ask you any more questions. Let me see how powerful this excavator is first."

Ying Zheng knew that Zhao Che didn't want to talk, so he didn't continue to press him, and turned his head to look at this mighty and extraordinary excavator.

When they were underground, the light from the candles was not too bright, so Ying Zheng and the others could only see a rough outline.

And now, the excavator officially appeared under the sun, and they finally saw the whole picture of this behemoth.

That bright yellow steel body is like a ferocious beast ready to go.

The mechanical arm, which cannot be hugged by a single person, demonstrates extraordinary strength.

The most eye-catching thing, of course, is the huge bucket, which is almost like a small house. When this shovel goes down, all the city walls and tall buildings are not all as fragile as tofu.

"Be careful, everyone, be aware of the danger!"

At this time, Zhao Che had already climbed into the cab of the excavator, and after reminding Ying Zheng and the others, he turned on the switch of the excavator.

"Boom!"

The huge steel beast suddenly let out an astonishing roar.