When he came to the top of the mountain, Wang Ruofeng noticed that on the cliff, at some point, a stone house appeared.

This stone house is not very luxurious, it is located in the deep mountains, if you want to be like Chang'an, make any garden style, of course, it is impossible. With the abundant stone here, this stone house is quite strong and wide, with a height of more than ten zhang, which is much higher than the brick houses in Chang'an City. The blue-gray rock walls are also covered with creepers and morning glories, which also add some greenery to the area.

Of course, what attracted Wang Ruofeng's attention the most was a windmill located on the stone roof.

It is precisely because of this windmill that the height of this stone house has reached such a height of ten zhang.

The windmill's fans were glossy, apparently made of steel, and three feet long, much larger than those used in ordinary mills, and the howling mountain wind kept blowing over the place, making the huge windmill spin slowly.

Bao Ming was a little proud, pointed to the windmill and said with a smile: "See, this is what I helped An Ai make." ”

"Oh, then do you know what he made this thing for?" Wang Ruofeng was a little curious in his heart, according to the scale of this windmill, it was obviously too much to grind flour, which made him curious about the purpose of Na An Ai's making this thing.

Bao Ming was obviously stunned, shook his head and replied, "He didn't tell me this." ”

At this moment, the door opened with a bang, and a voice came from inside.

"Come in. ”

The voice sounded annoyed, mixed with impatience, and it was clear that the people inside didn't seem to be very willing to meet people.

Bao Ming's eyebrows furrowed slightly, and he whispered, "Let's go in." So saying, he took a step and walked slowly into the open door, which was as dark as the cave that devoured hell.

Wang Ruofeng was a little frightened, and asked in a low voice, "We, do we really want to go in?"

"That's nature. Otherwise, what are we doing here?" Although Bao Ming believed in An Ai, he couldn't help but be a little scared when he saw the dark door.

It was now approaching evening, and the sun shining on the earth had also set on the other side of the mountain, and only the colorful glow on the horizon was red, illuminating half of the sky, but this colorful glow was getting darker and darker, and soon it fell into darkness completely.

At this moment, there was even more mountain wind whistling by, like a ghost crying wolf, which made the two of them even more frightened.

"Either way, that man won't hurt us. ”

Glancing at each other, Wang Ruofeng and Bao Ming held hands together, stepped forward, and stepped into the gate.

Just when they stepped into it, the two of them suddenly felt a light in their eyes, and couldn't help but close their eyes, and only opened their eyes after getting used to it, at this time the two of them found that on the wall, there were glass covers, and in the glass covers, orange light was being released, just like the sun in the sky, illuminating the whole room brightly.

"What the hell is this?"

Wang Ruofeng felt that his head was like paste, and he couldn't tell what was going on in front of him.

Bao Ming's performance is not very good, he also has long eyes, looking directly at the light in front of him, although the two of these things are too big, only by narrowing his eyes into a slit, can he see clearly.

"Would you believe me if I said that the sun lamp was plucked from heaven and put into it, so that it gave off this scorching light?"

Before the two of them could react, a voice came from the living room not far away, which was obviously exactly the same as the previous voice.

Wang Ruofeng reacted at this time, followed the sound and looked over, and saw that in the living room with less than a foot in length and width, there was a person in his thirties standing, but this person looked quite sloppy, and his clothes were stained, as if he hadn't cleaned up for a long time, and his head was also messy, just like a bird's nest.

"Excuse me, are you Mr. An?"

Wang Ruofeng bowed down, although the other party was far from the appearance of the hermit he imagined, but there was no doubt that it was the goal he was seeking.

An Ai's eyebrows furrowed slightly, as if she was a little surprised: "You recognize me?"

"This, I heard someone introduce Mr. An's deeds. That's why I'm here today in the hope of meeting my husband. Wang Ruofeng was a little apprehensive, for fear that the other party would refuse his request.

An Ai's eyes rolled, fell on Bao Ming's body, and snorted lightly: "It seems that you told him?"

"This, too, is his sincerity, that's why I brought it, I just hope you don't get angry about it. Is it okay?" Bao Ming smiled awkwardly, but his eyes couldn't bear the loneliness, and he roamed around.

He hadn't been here for many years, and Bao Ming was a little unfamiliar with all this, completely out of the curiosity of a technician, full of curiosity about everything in front of him.

An Ai turned his head and gestured to the two of them, and without waiting for the two of them to react, he turned around with his hands behind his back, walked over from the passage directly opposite, and said, "Then come here." ”

"Okay. ”

Wang Ruofeng and Bao Ming saluted together, and then took a step to follow.

At this time, the two of them heard the sound of gear rubbing overhead, and when they looked up, they saw that above their heads, there was a gear with a diameter of one zhang and a thickness of one foot hanging above their heads. The gear is placed on a circular steel frame, which is connected to the ground by four stone pillars, so that it will not fall directly because it cannot bear the weight.

The middle of the steel frame is hollow, and there is a copper pillar sticking out of the middle, and because of the rotation of the gear, this copper pillar is also constantly rotating.

"Is it because of the windmill?"

Wang Ruofeng remembered the windmill he had seen before, the magnificent giant-like figure really made him remember, poked Bao Ming beside him, then pointed to the thing above his head, and asked in a low voice: "Do you know what this thing is for?"

"I don't know. Bao Ming smiled bitterly.

Wang Ruofeng was slightly disappointed: "Don't you know either?" Raising his head, his two eyes stared at the thing above his head, but he was in deep thought.

Around the copper pillar, there are iron pillars installed, and a large number of copper wires are wound around the iron pillars, which are quite dense in circles and circles, and I don't know what the reason is, on this copper pillar, there are sparks one after another, and the blazing light makes him wonder if this is the power of thunder that has also been imprisoned.

"Good fellow, these things alone would not have been possible without hundreds of thousands of family fortunes. ”

Wang Ruofeng secretly smacked his tongue, how many hundred kilograms of copper wire alone are, which is equivalent to tens of thousands of dollars. Melting down so many copper coins just to mint this thing that I don't know what purpose it is, Na An Ai is worthy of being a madman who was once kicked out by Chongwen Academy.

"Don't look at it, let's follow first, or you will snub the other party, then you will be bad. Bao Ming poked Wang Ruofeng and woke him up from his imagination.

Wang Ruofeng remembered his previous goal at this time, and hurriedly said: "I forgot this." An Ai in the distance had already walked a long way, he hurriedly got up, and a few leaps before catching up with the other party, although Bao Ming next to him was weak in martial arts, but he also ran quickly, and also caught up with An Ai.

"This-this guy is too quiet. ”

Wang Ruofeng wanted to ask the other party, about the use of the mechanical device before, but he was not familiar with An Ai, especially when he saw the other party's impatient appearance, he was even more afraid that his mistake would anger the other party, so he had to close his mouth tightly and follow the other party step by step to the same stone house.

Of course, this stone house is much larger than the previous hall, with a length of three zhang and a width of two zhang, which is enough to accommodate relatively large things.

Scanning the things in the house, the corners of Wang Ruofeng's mouth curled slightly, just because he knew everything here, they were all machine tools used for cutting and grinding parts, and there were about a dozen of them, which could be used to manufacture various needed parts.

Wang Ruofeng recognized all these machine tools, after all, his factory also purchased similar things in order to be able to produce the paver, so as to produce some necessary parts.

"Tell me, what are you looking for me for?"

An Ai didn't pay attention to the two of them, but sat on a machine tool.

The machine was connected to the only steam engine in the area, and when the steam engine was started and the machine was driven, Anai began to grind the parts she needed. Wang Ruofeng noticed that the thing that An Ai had ground was a cylindrical steel part, which looked black inside, should be hollow, with a diameter about the thickness of an arm, with an opening at one end and a small hole drilled at the other end, and he didn't know what it was for.

Wang Ruofeng hurriedly took a step forward and complained: "This, the reason why I came here is to ask you to help solve the power problem of the car?"

"The car, what is that?" An Ai frowned slightly, looking dazed.

"Haha, I didn't expect you to have a time when you didn't know?" Bao Ming sneered and laughed, the two of them were really taken aback by the majesty of this person before, and hurriedly said: "That car, just like that train, is a thing developed by this descendant to replace a horse-drawn carriage in order to be able to load heavy objects such as asphalt and gravel, and it can run even if there is no track." It's a pity that due to his own ability, he can only temporarily use a steam engine instead. So there are a lot of problems?"

"Steam engines, too, you would use such a dangerous thing as a power. An Ai came back to his senses and immediately laughed: "Do you know that the steam engine is too dangerous, and it is not suitable as a power source for a carriage at all. Although he had never seen the style of a paver, he probably guessed the structure of this thing with his years of experience.

Wang Ruofeng had a trace of shame on his face, lowered his head and said, "That's right. That's why I'm here today to invite you out and help us solve this problem. He made up his mind in his heart, but he knelt directly on one knee, after all, if this matter could not be successful, then he would really be doomed.

"Huh. In that case, how can you be sure that I can help you solve this matter?" An Ai sneered.

"This ——, I-"

Wang Ruofeng was a little nervous, his eyes moved up and down, obviously a little at a loss, and he immediately remembered the windmill he had seen before, as well as the scorching light, and blurted out: "But I have seen something developed by my predecessors before, which can actually exert the power of ghosts and gods, detain the power of thunder, and transform it into light. With such intelligence, it should be easy to solve the problem of the power source of the carriage. ”

"Hmph. What do you say? It's just that it imitates the nature of heaven and earth, and that's what it came up with. An Ai snorted softly, her face full of mockery.

Wang Ruofeng opened his mouth wide and asked, "This, isn't it?"

"Of course not. ”

An Ai was a little impatient, and explained quite quickly: "The so-called thunder you saw was just because of cutting magnetic lines, which produced this thing. And the so-called sun lamp is all because I used a cable to introduce the power of thunder into it, which made it shine. These are natural things in heaven and earth, but I just got to the root of it, so I came up with these things, what does it have to do with the so-called ghosts and gods?"

His words were quite fast, regardless of whether the two of them understood it or not, and then showed some annoyance, and complained: "It's a pity that the speed of the mountain wind is difficult to control, so the speed of the rotor cannot be stabilized, and the current generated by this can never be stabilized, which forces me to make a stable power source." He looked down at the thing in his hand, but with a little expectation, he said: "I hope this can provide a stable source of power." ”

"Can't you use a steam engine for this?" asked Wang Ruofeng.

After more than ten years of research and development, compared to the rough appearance at the beginning, the current steam engine has already taken on a new look, in addition to the train, even on the ship, the steam engine is also installed, so as to reduce the need for manpower and increase the running speed.

"Hmph. The steam engine required a lot of water and coal, and it was dangerous to run. Do you think that if you put this thing in the house, there will be no fire, explosion, etc.?" An Ai snorted, and directly denied it, as if it was an unforgivable crime for him to use a steam engine.

Wang Ruofeng immediately shut up, as An Ai said, the limitations of this steam engine are indeed too great, except for places such as trains and ships that can carry a lot of things, other places are not very suitable for use.

However, An Ai's statement made Wang Ruofeng even more curious, what means he planned to take to solve the limitations of this steam engine.

At this moment, An Ai picked up the grinding parts in his hand and walked to the front of another workbench. On this workbench, there are a lot of things, in addition to the bearings, there are many gears or something, and there are about a dozen pieces scattered around.

An Ai sat in front of the workbench and began to assemble these parts together, Wang Ruofeng sat quietly next to him and watched, and Bao Ming also shook his head slightly, and his eyes did not blink, watching An Ai's movements.

They are also quite curious about An Ai's thoughts.

Suddenly, with a "bang", the whole room fell into darkness.

"What's going on?" Wang Ruofeng was a little flustered, it wasn't that he couldn't adapt to the darkness, he was just really afraid of the situation in front of him.

An Ai cursed: "Sure enough, did it explode again?" He skillfully took a kerosene lamp, and by the light of the kerosene lamp, he took a transparent glass cover from the storage room next to him, and then walked to the wall, pressed down something similar to a light, and then stepped on the bench and used the kerosene lamp in his hand to illuminate the position where the sun lamp was before.

With the help of the light, Wang Ruofeng could clearly see that the sun lamp was a spherical glass cover, and it was pitch black inside, and he couldn't see anything clearly.

An Ai unloaded the thing quite skillfully, then took out the new sun lamp and put it on, and by turning on the light, the room was bright again.

"What's going on?" Wang Ruofeng asked curiously.

An Ai replied impatiently: "The circuit is overloaded, so it was burned." ”

With the help of the light, he sat down on the workbench again, and continued his movements, of course, he had already done most of the time, so it didn't take long for the whole installation to be completely completed.

Wang Ruofeng watched it clearly from the side, and naturally knew that An Ai made this thing very simple, it was completely to stuff a piston into the previous steel cylinder, and the other end was connected with an axle.

Seeing the birth of this thing, An Ai clapped his palms and smiled: "Haha, now it's up to you how to solve it?" As he spoke, he cautiously took an iron bucket from the side, and Wang Ruofeng took a look at it and found that it was filled with gas.

This gas is quite dangerous, if you are not careful, it can explode, and I don't know where this An Ai got so much gas.

"What is this guy doing?" Wang Ruofeng was full of doubts in his heart, and quietly watched An Ai connect the gas to the device.

I saw An Ai first insert an "L" shaped iron rod into it, and after shaking it vigorously, a roar suddenly came to mind in the originally quiet device, "bang bang", it was as violent as thunder, and the piston also rotated back and forth, and the entire axle was also rotated.

Looking at all this, Wang Ruofeng's heart lit up, and he immediately exclaimed: "By the way, this is this thing." ”