"Hey, hey~" several craftsmen shouted the number to drag the main body of the waterwheel to the river, at this time the river has dug a small, but very deep channel, the waterwheel is installed on the side of the canal, in which the tail is immersed in the water, there are pedals on both sides, when one or two people step on the pedal, so that the gear drives the sink to rotate, and the scraper in the sink can bring the water up, and then pour into the diversion ditch to flow to the field.

Originally, Li Xiu used gears in his design, and he was still a little worried that Datang would not be able to make gears, but after chatting with the craftsmen, he learned that gears had appeared as early as the Spring and Autumn Period and the Warring States Period, such as gears were already used in machinery such as hydraulic mills that Li Xiu had seen, and there were special craftsmen who were proficient in the manufacture of gears, so his worries were simply unnecessary.

When Li Xiu and Ma Ye arrived, the waterwheel had been installed, and Princess Pingyang attached great importance to the waterwheel, and was pushed by the maid to the river to watch it in person.

"Uncle Ma, why are you here so slowly, the waterwheel is about to start the trial!" Princess Pingyang also saw Li Xiu and Ma Sanbao at this time, and said with a gentle smile at the moment, she didn't blame Li Xiu for being lazy, but the more this happened, the more Li Xiu felt a little embarrassed.

"I met someone on the way, and by the way, I told this kid about his family!" Ma Ye is a big mouth in front of Princess Pingyang, and he can't hold anything.

"Uncle Ma, don't joke, okay, this is a lifelong event related to me!" Li Xiu also protested dissatisfiedly when he heard this, there is no human rights in feudal society, although he is the one who marries, but in fact, he does not have much say in the matter of marriage, and his parents are the final decision-makers in this matter, so there is no human right to be a son in feudal society.

"Oh? What the hell is going on? Princess Pingyang also showed a very interested expression at this time and said, she knew no less about Li Xiu's affairs than Ma Ye.

At that moment, Ma Ye told him about the incident he had just met Pei Ju, but Princess Pingyang was silent for a moment after listening to it, and finally said to Li Xiu: "This is Captain Li's family matter, I shouldn't have said much, but marriage is not a child's play, if you choose the wrong person, you may be dragged down for the rest of your life, so you might as well wait for General Li to come back, Captain Li will go to his father to admit his mistake, and then talk to him about this matter!" ”

When Princess Pingyang mentioned marriage, her face also showed a gloomy color, because she had this personal pain in this matter, if she could have recognized Chai Shao's true face earlier, I am afraid she would not have fallen to this point.

"Thank you princess for reminding me, I'll think about it carefully!" Li Xiu also knew that these were Princess Pingyang's heartfelt words, and he bowed to Princess Pingyang very solemnly at the moment.

But now is not the time to talk about private matters, the waterwheel has been installed, the craftsman in charge is very good at coming to things, and even invited Li Xiu and Ma Ye to test it in person, which also made Ma Ye very happy, pulling Li Xiu on the waterwheel, the two stood on the pedals on both sides, as the two of them suddenly forced, the waterwheel finally began to rotate, at first a little heavy, but when the waterwheel is fully running, it will feel very relaxed.

As the waterwheel turned, the water was carried up by the trough, and then poured into the ditch and flowed down the ditch, which also drew cheers from the craftsmen. However, the craftsmen are happy, and Ma Ye is also excited, he is a military general, and he is in the prime of life, his body is as strong as a cow, and he began to work hard as soon as he was excited, and stepped on the waterwheel like flying, which made Li Xiu on the other side bitter, and the two desperate pedals could not keep up with his speed, so he had no choice but to jump down first, leaving Ma Ye happy to play alone.

Looking at this well-run human-powered waterwheel, Li Xiu also had some emotion, originally he designed two kinds of waterwheels, one of which was very much respected by Li Shimin, and he himself liked it very much, but later discussed with the craftsmen to know that although the waterwheel is good, it is very limited, because this thing can only be used on the riverside, but it can not be used on the still water surface of ponds and lakes, and there are also requirements for the water speed of the river. Therefore, this kind of waterwheel is not as popular as a human-powered waterwheel.

Of course, the hydraulic waterwheel has not been abandoned, but it is more complex than the human-powered waterwheel, and it is still under construction, and the Yellow Canal is very suitable for the hydraulic waterwheel, and after the development is successful, the first waterwheel will stand on the side of the Yellow Canal.

"Great, let someone notify the second brother to come and promote the waterwheel as soon as possible!" Princess Pingyang looked at the waterwheel that was running well, and immediately excitedly instructed that she preferred this kind of thing that could really change people's livelihood than fighting.

Ma Ye tossed the waterwheel like joy, Li Xiu did not step forward to stop, this is also a good way to detect the waterwheel, I have to say that the waterwheel he designed is very good in terms of sturdiness, the speed is so fast and there is no problem of falling apart, and the water output is also quite good, according to the craftsmen who have experience in manufacturing waterwheels, the efficiency of this new waterwheel is definitely much higher than the original waterwheel, and it is also very easy to step on, saving a lot of effort.

Li Shimin came soon after getting the news, but at this time Princess Pingyang and Li Xiu they had returned to the house to rest, Li Shimin ran directly to the river to take a look, and then came back to see the semi-finished hydraulic waterwheel, then came to the main hall to see Princess Pingyang, as soon as he came in, he said excitedly: "Third sister, this new waterwheel is really good, the water output is large, the structure is simple, and it is very labor-saving, I think it can be promoted immediately!" ”

"Hehe, second brother, you don't have to be too anxious, look at your tired sweat, sit down and drink saliva first!" Princess Pingyang couldn't help but smile when she saw Li Shimin's sweaty appearance, and poured him a glass of water with her own hands.

"Thank you, third sister." Li Shimin took it and drank it all, then sat down and smiled at Li Xiu, "This kind of waterwheel can be promoted, thanks to Captain Li's efforts, it will be the first merit in the future!" ”

"Your Royal Highness misunderstood, the waterwheel was created by an unknown old beggar, and the princess contributed more than me when it was supervised, so I really didn't dare to be greedy for merit!" Although he knew that Li Shimin and the three of them had already known the truth, Li Xiu was still able to tell lies seriously, which can be regarded as a kind of ability.

For Li Xiu's cheekiness, Princess Pingyang almost laughed out loud, but Ma Ye had long been used to it, and he didn't react to Li Xiu's words at all. As for Li Shimin, he also looked at Li Xiu speechlessly when he heard this, although he knew that Li Xiu was lying, but he couldn't accuse him, he had encountered a lot of things to shirk responsibility, but it was the first time he had encountered something to shirk the credit.

"Although the waterwheel was created by someone else, Captain Li still has the merit of recommending, second brother, you just report it truthfully, and now the waterwheel has not been promoted, and it is too early to talk about the credit." At this moment, I only heard Princess Pingyang say softly.

"What the third sister said is that there was not much snowfall in Guanzhong last year, most of the fields were relatively dry, and irrigation has become a big problem. Li Shimin said excitedly again at this time.

Li Shimin is so concerned about the promotion of waterwheels, it is not for nothing, speaking of which, the reason why he was able to fight with his eldest brother is that the most important thing is to rely on his military exploits, half of the territory of the entire Tang Dynasty was fought by him personally, which also makes his prestige in the army extremely high, except for a few firm neutrals like Li Jing, most of the rest of the generals are more inclined to him, but in addition to military merits, he has no outstanding achievements in court and politics, and this is precisely Li Jiancheng's strengths, Now that he finally has a political achievement in promoting waterwheels, he will naturally not give up.

In addition to the achievements of promoting the waterwheel, Li Shimin also has another plan, he failed to recruit Li Xiu several times, but he did not die because of this, this waterwheel was presented by Li Xiu, although he did not admit that this was created by him, but a dedication can not run away, and when Li Shimin reported the waterwheel to the imperial court to promote, then in the eyes of others, Li Xiu has an indescribable relationship with him, and the most important thing is to make his eldest brother Li Jiancheng suspect that Li Xiu is his person, so that there will be less trouble in recruiting Li Xiu in the future.

Although Li Xiu was a human being in two lives, he had almost zero experience in court battles, and he could never have imagined that Li Shimin had such a deep plan. Ma Ye may have seen it a long time ago, but he didn't say anything to remind him, after all, this matter was originally caused by Li Xiu, and it has developed to the point where it has developed to this point, it is too late to remind him again. As for Princess Pingyang, she is probably the most dilemma, whether it is Li Jiancheng or Li Shimin, they are her own brothers, so she has never expressed her opinion on this matter.

Then Li Shimin chatted with Princess Pingyang for a few words, and then hurriedly said goodbye and left, Li Xiu and Ma Ye accompanied Princess Pingyang to send Li Shimin out of the door, but just when Li Shimin flew on the horse and was about to return to Chang'an City, he suddenly turned his head and smiled at Li Xiu: "Captain Li, there is something I forgot to tell you, Ling Zun is about to come back from the south, if Captain Li needs it, this king can help your father and son make peace!" ”