"Hey hey hey hey hey~" Several craftsmen shouted and dragged the main body of the water truck to the riverside. At this time, a small but very deep water tank had been dug by the riverside. The water truck was installed at the edge of the water tank, with the tail submerged in water, and there were pedals on both sides. When used, one or two people stepped on the pedals, so that the gears drove the sink to rotate. The scraper in the sink could carry the water up and poured into the drainage ditch and flowed to the fields.

Originally, when Li Xiu used gears when he designed it, he was a little worried that the Tang Dynasty would not be able to make gears. However, after chatting with the craftsmen, he found out that gears had appeared in the Spring and Autumn Period and the Warring States Period. For example, gears were already used in machinery such as hydraulic mills that Li Xiu had seen. There were also special craftsmen who were proficient in gear manufacturing, so his worries were simply redundant.

All the components of the water truck have been manufactured and can be transported to the river for installation. When Li Xiu and Ma Ye arrived, the water truck had been installed. Although Princess Pingyang was inconvenient in legs and feet, she attached great importance to the water truck. At this time, she was pushed by the maid to the river to watch it herself.

"Uncle Ma, why are you here so slowly? The water car is about to start trialing!" Princess Pingyang also saw Li Xiu and Ma Sanbao at this time. She smiled gently and said, "Didn't blame Li Xiu for being lazy, but the more this happens, the more she feels a little ashamed.

"I met someone on the way, and I told this kid about his marriage!" Mr. Ma was just a big mouth in front of Princess Pingyang and could not hold anything.

"Uncle Ma, don't joke, okay, this is a lifelong event that concerns me!" Li Xiu protested dissatisfiedly when he heard this. There was no human rights in feudal society. Although he was the one who got married, he actually did not have much say in marriage. His parents were the final decision-makers of this matter, so he had no human rights to be the son of feudal society.

"Oh? What's going on?" Princess Pingyang also showed a very interested expression at this time. She didn't know less about Li Xiu than Master Ma.

Now Ma Master told the story of Pei Ju just now, but Princess Pingyang was silent for a moment after hearing it, and finally said to Li Xiu: "This is the family affairs of Li Zhengwei. I shouldn't have said too much, but marriage is not a joke. 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, Li Zhengwei will admit his mistake to his father and then talk to him about this matter!"

When Princess Pingyang mentioned marriage, her face also showed a gloomy look because she felt the pain of this matter. If she had known Chai Shao's true face earlier, she would probably not have fallen to this point now.

"Thank you for reminding me, I will consider it carefully!" Li Xiu also knew that these were Princess Pingyang's heartfelt words, and immediately bowed to Princess Pingyang very seriously.

However, it is not the time to talk about private matters. The water truck has been installed. The craftsman in charge is very good at doing things. He actually asked Li Xiu and Ma Ye to experiment with it himself. This made Ma Ye very happy. He pulled Li Xiu and got on the water truck. The two stood on the pedals on both sides. As the two of them suddenly exerted force, the water truck finally began to rotate. It was a bit heavy at the beginning, but when the water truck was fully running, it would feel very relaxed.

As the waterwheel rotated, the river water was also brought to a high place by the sink, and then it was poured into the ditch very smoothly and flowed outward along the ditch, which also caused the craftsmen to cheer. However, the craftsmen were happy, and Ma Ye was also excited. He was a general and in his prime. His body was as strong as a cow. When he was excited, he began to force himself and stepped on the waterwheel as if he was flying. This made Li Xiu on the other side suffer. His two desperate pedals could not keep up with his speed. In desperation, he had to jump down first, leaving Ma Ye alone to have fun.

Looking at this well-running manpowered water truck, Li Xiu was also a little moved. He originally designed two types of water trucks, and the one of them was highly praised by Li Shimin, and he liked them very much. However, after discussing with the craftsmen, he realized that although the water truck was good, it was greatly restricted because this thing could only be used by rivers, but in ponds and lakes, the static water surfaces of the ponds and lakes could not be used, and there were also requirements for the water speed of the river. It was too slow to carry it, and it was too fast to easily cause the water truck to fall apart. Therefore, this kind of water truck was not as popular as the water truck.

Of course, the hydraulic water truck has not been abandoned, but it is more complicated than the human water truck and is still under construction. Moreover, the Huang Canal is very suitable for hydraulic water trucks. After the development is successful, the first water truck will stand next to the Huang Canal.

"It's great. Let me inform my second brother to come and promote the water truck as soon as possible!" Princess Pingyang looked at the well-running water truck and said excitedly that she liked something that could actually change people's livelihood than war.

Ma Ye was jokingly trying tossed the water truck, but Li Xiu did not come forward to stop it. This was also a good way to detect the water truck. I have to say that the water truck he designed was very strong in terms of strength. He had no problem of falling apart at such a fast speed, and the water output was quite good. According to the craftsmen with experience in making water trucks, the efficiency of this new water truck is definitely much higher than the original water truck, and it is easy to step on, saving a lot of effort.

Li Shimin arrived quickly after receiving the news, but at this time, Princess Pingyang and Li Xiu had already returned to the mansion to rest. Li Shimin ran directly to the river to take a look, and then looked at the semi-finished hydraulic water truck. Then he came to the hall to see Princess Pingyang. As soon as he came in, he said excitedly: "San Sister, this new water truck is really good, with a large amount of water output, a simple structure, and a very labor-saving thing. I think it can be promoted immediately!"

"Haha, second brother, you don't have to be too anxious. Look, you are so tired that you are sweating. Let's sit down and drink a sip of water first!" Princess Pingyang couldn't help but smile when she saw Li Shimin's sweaty look, 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 water truck can be promoted thanks to Li Zhengwei's efforts, which will be the first contribution in the future!"

"Your Highness misunderstood that the water wheel was created by an unknown old beggar. When the princess was in charge, she worked harder than me, so she really didn't dare to be greedy for me!" Although she knew that Li Shimin and the other three had known the truth for a long time, Li Xiu was still able to tell lies seriously, which was a skill.

Princess Pingyang almost laughed out loud about Li Xiu's shamelessness, but Ma Ye had long been used to it and had no reaction to Li Xiu's words. As for Li Shimin, he looked at Li Xiu speechlessly when he heard this. Although he knew that Li Xiu was lying, he could not accuse him. He had encountered many things that shirked responsibility, but this was the first time he had encountered the things that ruling off the credit.

"Although the water truck was created by others, Li Jiaowei still has the merit of recommendation. Second brother, you just report it as if it were. Moreover, the water truck has not been promoted yet, so it is too early to talk about the merit." At this moment, Princess Pingyang said softly.

"What my third sister said is that there was not much snowfall in Guanzhong last year, and most of the fields were drought, so irrigation had become a big problem. Fortunately, the trial production of the water truck has been successful. I will go to the palace to report to my father now, and try to come up with a promotion method as soon as possible!" Li Shimin said excitedly again at this time.

There is not without reason why Li Shimin was so concerned about promoting water trucks. Speaking of which, the main reason why he was able to fight with his elder brother was that he relied on his military merits. He defeated half of the territory of the entire Tang Dynasty by himself, which also made him extremely prestige in the army. Except for a few firm neutral factions like Li Jing, most of the other generals prefer him. However, except for military merits, he did not make any achievements in the court affairs. This is exactly Li Jiancheng's strength. Now that he has finally achieved the political achievements of promoting water trucks, he naturally will not give up.

In addition to his favourite achievements in promoting water trucks, Li Shimin had another plan. He failed to recruit Li Xiu several times, but he did not give up. This time the water truck was given by Li Xiuxian. Although he refused to admit that it was his creation, he could not escape the contribution. When Li Shimin reported the water truck to the court to promote it, in the eyes of others, Li Xiu had an indescribable relationship with him. The most important thing was to make his elder brother Li Jiancheng suspect that Li Xiu was his person. In this way, recruiting Li Xiu would be less troublesome in the future.

Although Li Xiu was a man of two lives, he had almost zero experience in court struggles. He could not have imagined that Li Shimin had such deep plans. Mr. Ma might have seen it a long time ago, but he did not remind him. After all, this matter was originally asked by Li Xiu, and it was too late to remind him again. As for Princess Pingyang, she was probably the most difficult person. Whether Li Jiancheng or Li Shimin, they were her brothers, so she never expressed her opinions on this matter.

Next, Li Shimin chatted with Princess Pingyang for a few more words, then hurriedly said goodbye and left. Li Xiu and Ma accompanied Princess Pingyang to send Li Shimin out of the door. However, just as Li Shimin flew on his horse and was about to return to Chang'an City, he suddenly turned his head and smiled at Li Xiu: "Prince Li, I forgot to tell you something that Ling Zun is about to come back from the south. If Prince Li needs it, I can help you father and son with peace!"
Chapter completed!