It was already afternoon after leaving the left-behind mansion. Wang Chong set up a banquet to entertain the two of them, and decided to go back to Chang'an with Xueshi Zhang.

On the carriage, Zhang Xueshi smiled and said to Wei Renshi: "If the general takes action personally, your great achievements have been achieved. Even if you don't look at this great contribution, just look at the general who comes forward for you, Your Majesty will not be indifferent."

Wei Renshi said: "General Wang is so trustworthy by the saint?"

Zhang Xueshi nodded and replied, "Yes, when the Jingyuan mutiny was in conflict, Zhu Li plotted against rebellion and the rebels attacked Chang'an. General Wang escorted His Majesty all the way to Fengtian. In Fengtian, he also kept guarding His Majesty's safety. Later, Zhu Li's troops surrounded Fengtian, and General Wang escorted his left and right until Li Zhongwu's Shen Ce army arrived and rescued Fengtian. Then he quelled the Zhu Li rebellion, and General Wang escorted His Majesty back to Chang'an. Therefore, he was deeply trusted by His Majesty."

"Duke Li Zhongwu?" Wei Renshi was stunned. After all, he didn't know enough about this period of the Tang Dynasty. When he heard this title, he couldn't remember who it was.

"Li Sheng, the prince of Xiping, was posthumously awarded the title of Grand Tutor after his death and was posthumously named Zhongwu." Zhang Xueshi explained.

When Wei Renshi heard Li Sheng, he remembered this person. One of the famous generals in the middle Tang Dynasty, he suppressed countless rebellions and played an extremely important role in maintaining the Tang Dynasty from being divided.

"It is also General Wang's heart to serve the country with all his heart. If he hadn't seen this thing be of great use in the army, he would never have come forward in person." Zhang Xueshi sighed and said, "I originally thought that it would have been a goal to let General Wang write a memorial and listen to this matter to heaven. I never thought that it would be so smooth that General Wang would actually go back to Chang'an to meet the saint."

Wei Renshi thought about it, took out a piece of paper from his sleeve, and said, "Actually, I made complete preparations last night, but I didn't expect that today would be so smooth."

Mr. Zhang looked at the paper on the spot and said, "This is... a horn bow? But how come it is so strange? I have never seen such a horn bow."

Wei Renshi nodded and said, "Yes, I have improved this kind of bow. Although there is no physical object yet, I can make sure it will save much effort and be much more powerful than the bow today."

What Wei Renshi took out was the compound bow.

In fact, the composite bow was made in ancient China a long time ago and maintained its existence for a long time.

As early as the Shang Dynasty, composite bows had already appeared in China. By the Eastern Zhou Dynasty, the production technology of China's composite bows was very mature.

In the "Kaogong Ji" during the Spring and Autumn Period and the Warring States Period, a detailed summary of the composite bow-making technology at that time was already provided.

In fact, unlike many people's impressions, the dryness of the bow, that is, the arch tire part, does not provide much elasticity, and mainly plays the role of a carrier or bracket. The elasticity of the bow mainly comes from the tendons attached to the back of the bow arm and the corners on the front of the bow arm. The corners are cow horns. When used, thin sheets should be made and attached to the front of the bow arm.

Therefore, in ancient times, compound bows were also called horn bows, which showed the importance of cow horns. A pair of good cow horns was the most expensive cow, so there was also a saying that "cows wear cows". The tendons are beef tendons, which are attached to the back of the bow arm.

Ribs are very excellent animal fibers that can withstand very large tension, while the angle is opposite to the ribs and can withstand relatively large pressure.

When an object is bent, the inner and outer deformation of the curved arc is the greatest. The greater the deformation, the greater the elastic force generated when it returns to its original state. But naturally, the greater the deformation, the greater the tension required.

This composite bow made of tendon angles has been used since the Eastern Zhou Dynasty to the modern era. This is just a composite bow in the material sense.

However, there were a few pulleys on the pattern taken out by Wei Renshi at both ends.

These pulleys are the biggest difference between modern composite bows and ancient composite bows. The biggest feature of modern composite bows is that they use pulleys to achieve labor-saving effects.

Although the materials of modern composite bows cannot be reproduced in this era, pulleys can be made.

The pulley can help you save effort by using the pulley, so that the same archer can shoot more bows and arrows, shoot farther and have greater power.

"After I went back last night, I stayed up late to draw the pattern of this bow. I originally planned that if General Wang didn't want to come forward today, I would hand it over to him as another bargaining chip." Wei Renshi said: "But today is so smooth that I didn't have the chance to take it out for a while."

"How is this bow so weird?" Zhang Xueshen took the pattern over, looked around and asked, "What are these circles used for? What are the circles wrapped around them?"

"Don't underestimate these circles, they can make the archers shoot more bows, more powerful, but more energy-saving." Wei Renshi said: "I wrote about how to do it, on the next few pages. After Mr. Zhang arrived in Chang'an, he could find someone who knows how to make bows to make them. But it still has to be kept confidential. The court should not reveal the method of making them, so that others can learn to do it, and in turn deal with our Tang Dynasty."

"That's natural." Zhang Xueshi nodded and said, "There is nothing small in the army. If this bow is made, it will be another credit. I don't know how your head grows, but these things can be thought of. Okay, with such things, coupled with the contribution of improving farm tools, the second strategy for land management and horseshoe, your desire to be a nobleman is really not far away."

"Oh? What level does that Bachelor Zhang think can do?" Wei Renshi asked with a smile.

"How many more do you want to do? Do you dare to ask for a prince?" Seeing him with a jealous look, Xue Shi Zhang couldn't help but smile: "I'm here, I will give you a county man to you."

"I believe in your eyesight. It seems that my title is probably a county man." Wei Renshi nodded and said, "It's not bad, he is a noble person at least."

"Why are you so obsessed with being a noble?" Seeing Wei Renshi like this, Xue Shi Zhang asked curiously: "You don't have a real job."

"It's enough to have the privilege of a nobleman." Wei Renshi said: "You know the situation at my family. I'm not old and have no support at home. Now I have built a winery again. If I don't have the status of a nobleman, I'm afraid anyone will dare to come forward and pinch it. Not every time I can turn bad things into good things like this time when I repair the river bank. Take this for example, if I'm a nobleman, the prefecture will have some concerns, so I won't help the Ninth floor and one pavilion to deal with Yimeng Tower. As for the actual position, I really don't want to take it, and I'm too restricted. Moreover, I'm used to being lazy and casual. If I have a real position, I'm afraid I will miss it."
Chapter completed!