Liu Kan raised his eyes and looked at it again, and saw that the winding path circled in the stretching mountains, creeping up, and there were fields everywhere, these smooth lands seemed to be scattered raindrops, and generally appeared on the mountaintops and mountainsides without any regularity.

Looking at the field in front of him, a vague thought flashed in Liu Kan's mind, and he disappeared before he could grasp it, bowed his head and frowned for deep thought, and he suddenly thought of a good way.

"Do you know about the waterwheel?" Liu Kan asked.

I have lived for so many years and I know a little bit about the ox cart and the carriage, but what this "water wheel" is, Ge Ying really doesn't know anything about it, is it a cart used to pull water?

"I don't know." Ge Ying shook his head honestly.

Looking at Ge Ying's honest appearance, Liu Kan couldn't help laughing, the heart of the waterwheel was first only in the Eastern Han Dynasty, how could he, a person from the Qin Dynasty, know that he was really in a hurry and talked nonsense.

Turning over and dismounting, Liu Kan explained while walking into the field, "It's normal for you not to know, I also saw it in a book by chance, saying that you can use a waterwheel to water the fields in the mountains, which is very convenient, and if you can build it, it will be able to help the people of Yucheng rebuild their homes as soon as possible." ”

Squatting down and digging up some soil with his hands, Liu Kan found that the soil here was still very firm, and if he could build a few waterwheels here, it would not cause a burden on such a land.

"Is the waterwheel really that useful?" Ge Ying had never heard anyone mention any waterwheels, and he couldn't help but be skeptical.

Liu Kan got up and patted the soil on his body, stood up and explained to Ge Ying while gesturing with his hand: "The waterwheel is operated by using the inertia of the movement of the water potential, this specific explanation is very troublesome, even if I have the heart to say that you can't understand, you just need to know that the big waterwheel can water six or seven hundred acres of farmland, and the small one can also water one or two hundred acres, saving labor and money!" ”

Liu Kan doesn't plan to say some modern things, anyway, he doesn't understand these old people for a while when he says it, so he simply has power and power now, and he can order directly if he wants to build a water wheel.

Putting his hand on Ge Ying's shoulder, Liu Kan raised his eyebrows proudly and said, "Don't waste any more time here, let's hurry back to find the artificial water wheel, this farming time will not wait for us." ”

Although the principle of the waterwheel was still not clear at all, Ge Ying believed that Liu Kan was not a person of nonsense, and then looked back at the fields in the mountains, Ge Ying turned over and followed Liu Kan back

As soon as he returned to the city, a small soldier came to report that Chen Sheng was looking for him to discuss something, Liu Kan glanced at the people in the city who were still receiving porridge and knew why Chen Sheng came to find him, it was nothing more than to blame him for taking out the grain in the general and distributing it to the people of Yucheng.

Liu Kan is not a philanthropist and knows that this is wrong, but now that he has found a solution, he does not care about it.

"You go back and call some people to get ready, and I'll be back as soon as I go." After a few words of command to Ge Ying, Liu Kan tightened his horse's head and turned around in the direction of the county guard's mansion.

Liu Kan's mind was all about building a waterwheel, and when he arrived at the county guard's mansion, he was also absent-minded, so what a human spirit Chen Sheng was, he saw through Liu Kan at once.

Lowering his head and filtering the tea leaves in the cup without impatience, Chen Shengcai raised his head and said to Liu Kan: "Brother Xian's soup porridge is a good thing, it stands to reason that a brother should not say anything accusatory, but I am not the only one in the rebel army, your actions are a bit rash." ”

Chen Sheng put himself in the position of his brother with a few words, even if Liu Kan had the heart to argue, it was not easy to contradict the "brother", but fortunately, Liu Kan also knew his mistakes, he did not collide with Chen Sheng but actively admitted his mistakes, even Chen Sheng didn't know what to say this time.

"Brother Xian sits here, but his eyes look like he looks out from time to time, what? Is it because of my brother's poor hospitality, or do you have something important to deal with? ”

Liu Kan laughed dryly, and said in his heart Chen Sheng is really a poisonous eye, "It's not a hurry, it's just that I went out of the city today to check the fields of Yucheng, and found that building a waterwheel might help the crops in Yucheng come back to life, so I ordered the people below to do it, but you know, the people below don't understand anything, I'm afraid I won't be able to watch them get it right." ”

Chen Sheng of the dynasty here can be regarded as a good person, he was born as a farmer and didn't know anything about the waterwheel in Liu Kan's mouth, so he couldn't help but widen his eyes, put down the teacup, and asked shamelessly, "Brother Xian, what is this waterwheel?" Why does it have such an effect, the foolish brother is shallow and ignorant of it, and he is really ashamed to think about it, and he asked the virtuous brother to tell him a thing or two. ”。

Liu Kan had no intention of pretending, but Chen Sheng was the main general of the rebel army, and what he was doing here could be hidden from his ears and eyes, rather than being discovered by him to hide something strange from him, it was better to tell him directly, maybe he could let him help.

"Oh, this waterwheel is not an unusual thing, it is usually used to irrigate the farm, I also saw it in a book many years ago, I can hardly remember anything after such a long time, but I think that maybe it is the only thing that can clean up the city, so I will build it anyway."

Liu Kan's words are actually true, after graduating for so many years, he has long forgotten what the waterwheel is like, but he vaguely remembers a little bit of the principle he has learned, and with this principle, he feels that he is still barely able to make something.

After Liu Kan finished speaking, it really aroused Chen Sheng's interest, you must know that Chen Sheng was born as a farmer, and he cultivated the land for the landlord's family before the uprising, so he has a sense of attachment to the land planting.

Now I can't help but be very moved when I hear Liu Kan say that there is such an irrigation artifact, and for a while I forgot my intention to come to Liu Kan this time, and asked him to tell him the principle of the waterwheel.

Knowing that Chen Sheng would be interested in the waterwheel, but he didn't expect to be so interested, and didn't want to caress Chen Sheng's request, Liu Kan asked the maid to bring a brush, and while writing and drawing on the bamboo slips, he explained to Chen Sheng the principle of the waterwheel moving, and the commander of the first army was stunned.

But the coach is the coach, it is not comparable to Ge Ying and others at all, in the face of such a "magical" thing and the so-called principle, Chen Sheng can actually check it, and he is very smart to hear a little bit of his own feelings, which really makes Liu Kan admire it very much.