After taking a turn outside the city, Zhu Ming was invited to the state government mansion as a guest, and by the way, he also brought Zhang Jinping with him.

Yu Wenchang's wife, Yang, was born in the Yang family in Chengdu.

This is the number one surname near Chengdu, and if you count several Yang clans, the number of Jinshi even far exceeds that of the Wang family.

Introduce each other to their wives and sit down to eat.

After chatting for a while, Zhu Ming asked casually: "Yuwen Cuizhong is the same clan as Brother Quan Ke?" ”

"The Great Song Dynasty was separated before the founding of the country, and I am ashamed of this person!" Yu Wenchang seems to be very disgusted with Yu Wen Cuizhong, because the latter turned out to be Cai Jing's nephew.

The Yuwen clan where Yuwen Chang is located is from Shuangliu County.

The brothers of Yuwen Cuizhong and Yuwen Xuzhong are from Guangdu County.

In fact, next to each other, at the junction of the two counties, there are also some small branches of the Yuwen clan, and there are a large number of small and medium-sized landlords and homesteaders.

When it comes to the big families near Chengdu, Yuwen is often like a few treasures, which really makes Zhu Ming increase his knowledge.

After three rounds of drinking, Zhu Ming asked: "Is there a righteous army (native soldiers) in Lizhou?" ”

Yuwen often said: "There are three kinds of Tuding, Picking, and Xiongbian Volunteers, with a total of more than 10,000 people. However, it is not allowed to recruit at will, unless there is internal and external trouble, it can be declared to the transfer department to convene local soldiers. ”

"If you don't raise money for a long time, you will be underestimated." Zhu Ming said.

"Don't dare to act rashly." Yuwen often sighed.

Regardless of whether it is raw or familiar, since it is nominally subordinate to the Great Song Dynasty, then it has the obligation to send troops to help.

When recruiting native soldiers, the barbarian leaders brought their own armor and rations, and did not have to pay them military salaries. However, after the assembly, the Han government had to provide grain and grass.

In the past few decades, the Qiongbu Sichuan Barbarians have been expanding, almost completely annexing the barbarians on the south bank of the Dadu River, and the two Linbarians have been beaten so that they can only move further south (Xide County).

Such a situation is not conducive to the rule of the government.

And the two Lin barbarians also returned to the Great Song Dynasty, they were attacked and came to ask for help, and the government should help them settle down. However, the officials of Lizhou only knew how to mediate and ordered the Qiongbu Chuanman to return some people and goods, and it was impossible to restore the annexed territory.

In the long run, Qiongbu Chuanman became less and less concerned about the imperial court, and Lianglinman also became more and more unrealistic of the imperial court.

Zhao Guangyi also made a fuss at that time, Nuo Qi, the leader of the Qiongbu Sichuan barbarians, claimed to be the king of Dali, and was named the king of Zhongshun by Zhao Guangyi, the Taibao of the inspection school, and the general of Guide, and confirmed his dominance over the barbarians south of the Dadu River.

Zhu Ming said: "If you sit back and watch the barbarians fight among themselves, the south of the Dadu River will be annexed by Dali." ”

"Why?" Yuwen Chang asked.

Zhu Ming explained: "If the barbarian rebels are not recruited for a long time, the barbarians will be detached from morality and do not know how to be in awe. When they encountered the attack of Dali, they would no longer ask the imperial court for help, and it was difficult for the various departments to resist together. ”

Yuwen was often silent, and then drank alcohol: "You can't get up from the border troubles, and you will try to do it when the national strength is strong." ”

This idea is also correct, the Northern Song Dynasty really can't fight on multiple fronts.

But how could Yuwen Chang have expected that the Great Song Dynasty was already the strongest power at this time, and it would only become weaker and weaker in the future.

In the end, in the Southern Song Dynasty, all the territory south of the Dadu River was pocketed by Dali. A new Jianchang Mansion was also established to rule, which was directly governed by the Gao clan of Dali.

If he did not quickly establish his prestige, Zhu Ming was afraid that when he captured Sichuan, it would be when Qiongbu Sichuan invaded Hanyuan County in the north.

Qiongbu Sichuan has been eyeing the tiger, Sichuan is in chaos, and it will raise troops.

Of course, before beating the Qiongbu Chuanman, you have to clean up the five tribes of the barbarians.

The artillery is inconvenient to display, and it is necessary to use trebuchets to fight five.

Back at the county government's back house, Zhu Ming immediately turned out the "General Essentials of the Martial Arts", which had various ordnance drawings in this book, which gave him a new understanding of ancient warfare.

For example, the head car used in the siege of the city has a total length of more than 10 meters and a height of more than 3 meters.

There are wooden planks covered with cowhide to ward off bows and arrows, and there is even a fire extinguishing system.

This thing drove under the city, and instead of hitting the city gate, it dug a tunnel directly into the city. The sappers can even take turns to work, and when they are tired, they turn back to rest in the shed.

The excavated soil can be built on the ground to build a high platform, and a mountain of earth can be built directly under the city. The house on the top of the hill is wrapped in cowhide, and you can hide behind the hill to prevent arrows, and you can also stand on the top of the hill and shoot at the head of the city.

If the moat is not wide, it does not need to be filled with negative soil, and it is crossed by pushing the folding moat.

If the moat is too wide, multiple moats can float on the water to connect.

The ladder also had wheels to push it on, and the soldiers were protected in all directions while sitting in the car, and were only exposed when they came out to climb the ladder to attack the city. The ladder was folded, the hook grabbed the head of the wall hard, and there were heavy carriages underneath, which the defending soldiers could not push away.

The common siege ladder in film and television dramas is called a flying ladder, with wheels at the top, which can be pushed forward by pressing on the wall, and it can be erected quickly, without having to be erected and then put on it.

"What are you looking at?" Zhang Jinping came in with a decanting soup.

Zhu Ming said: "Artillery car. ”

Zhang Jinping glanced at the graphics and immediately said: "I understand this, it is the principle of leverage, which is mentioned in "Tao Strategy". ”

"So do you think you can improve it?" Zhu Ming asked with a smile.

"Improve ......," Zhang Jinping frowned and pondered.

Zhu Ming said: "The efficiency of these artillery trucks is too low, and the heaviest seven-tip artillery can only throw artillery shells within 100 catties, and it also requires one or two hundred people to pull the rope, and the range is only 50 steps (about 80 meters). ”

Reducing the weight of the artillery shell can hit it farther, but it still can't compare with the return gun.

And the return cannon does not need one or two hundred people, a few people can operate it.

The principle of the return cannon is very simple, and high school students can figure it out.

Zhu Ming inked the bamboo pen and began to draw a drawing of the return gun. The kind of Yuan Dynasty belongs to the original minimalist version, Zhu Ming painted an improved version, with a winch and other devices, and those who have played the P Club game must be familiar.

"Can you read it?" After Zhu Ming finished drawing, he pushed the drawing over.

Zhang Jinping nodded: "When the weight in the front of the lever falls, throw the cannon at the back end of the lever." ”

Zhu Ming said: "This kind of cannon can throw heavy objects, not only the principle of leverage, but also the use of gravitational potential energy. ”

Zhang Jinping said: "What is gravitational potential energy? ”

Zhu Ming is not easy to explain the gravitational acceleration, so he can only describe it as vividly as possible: "A fist-sized stone, if it falls an inch above the head, can it smash this person to death?" ”

"I can't." Zhang Jinping said without thinking.

Zhu Ming asked again: "If a stone of the same size is placed five zhang high above the head, will it crush people to death if it falls?" ”

Zhang Jinping said: "If you fall so high, even if you don't crush people to death, you will smash your head and bleed." ”

"This is the gravitational potential energy, the higher the height, the greater the weight, the greater the gravitational potential energy," Zhu Ming said, pointing to the drawings of the return gun, "This kind of artillery is to use gravitational potential energy to do work." With only a few people to operate, it is heavier and farther than one or two hundred people pulling the cannon cart and throwing the shells. ”

"I see." Zhang Jinping was very happy that she had learned new knowledge again.

Anyway, there was nothing to do in winter, and officials would hardly go to work outside the city except for the affairs of the city.

Zhu Ming called two carpenters to try out a light return gun.

The wood does not need to be dried in the shade, and it is taken locally during the siege, and it is directly dismantled as firewood when it is used up.

Although the principle is very simple, the drawings have been drawn, and the specific dimensions have to be experimented. For example, the proportion of the force arm, how to save the most effort and throw far, can be calculated by mathematical formulas, but it is only theoretical.

After repeated improvements, in only half a month, the first return gun was freshly baked.

Zhu Ming brought Bai Sheng, Li Bao, Zhang Bo and other entourages, and Wei Yingshi and Zeng Xiaoduan, two students, also called, and naturally they didn't know about Zhou Yu Wenchang.

"Is this a catapult?" Yuwen Chang was quite surprised, he also thought that Zhu Ming was going to make the kind of thirty or fifty people.

Several officials were arranged to assemble weights, and the counterweight boxes made of wood were more powerful if they could be put in iron, and the stones could also be used for improvising.

The two turned the winch, the two helped pull the rope, and the weight box quickly reached the predetermined height.

Thirty pounds of irregular stone bullets were lifted into the bullet sac.

"Boom!"

Zhu Ming drew his sword out of its sheath and cut the straight rope.

The lever rotated and rubbed to make a sound, the weight box fell violently, and the thirty-pound stone bullet was thrown out.

Everyone was stunned.

Yuwen Chang hurriedly sent someone to measure the range, which was more than 100 meters away.

If a traditional artillery truck wants to hit such a heavy shell, it has to use at least fifty or sixty people to pull the rope, and the range is far from reaching.

Zhu Ming actually used a few people to get it done.

Yu Wenchang exclaimed: "This is the artifact of the country, comparable to that divine arm bow!" ”

Zhang Bo and Li Bao glanced at each other, they had seen the tiger squat cannon fired. Now that Zhu Ming has made a return cannon, the two of them were extremely shocked in their hearts, and even doubted whether Zhu Ming had really met an immortal.

Zhu Ming said: "If you build a bigger one and throw a 50-pound stone bullet, it should be easy to collapse the barbarian bunker, right?" ”

"As long as it hits, two or three cannons will definitely collapse," Yu Wenchang was quite excited, "This thing should be dedicated to the imperial court!" ”

This time, Zhu Ming did not refuse: "After the beginning of spring, I will present the drawings." ”

The content of the song has been thought of, and he will write that Lizhou is very good here, and ask the emperor not to change places for himself, and leave some time to clean up the five barbarians.

Yuwen often said: "With this artifact, the Western Xia city is easier to break." ”

Zhu Ming didn't bother to discuss Western Xia, and arched his hand: "There is also a kind of military formation below, which is suitable for fighting in the mountains of Lizhou, please hand over the infantry army to me for training." ”

Yuwen often thought for a while: "If you succeed, you can try it." ”

Zhu Ming said: "Please allocate 300 guan to create some special weapons." ”

Yuwen often said: "Lizhou is poor, 300 is too much, how about 200?" ”

"Yes, too." Zhu Ming agreed.

A state is poorer than a state, Golden State is poor enough, and Li Zhou is even more difficult to describe.

In fact, it is not poor, and all the barbarians will come to do business, and many barbarian goods can be purchased at a low price, and then shipped to Chengdu for sale at a high price. It's a pity that the business of the mutual market is firmly controlled by the Tea and Horse Division, and the yamen at the state and county levels can't make any oil and water.

Before the Chinese New Year, Zhu Ming began to build weapons, shields, wolf milling and the like.

Cleaning up the five barbarians is only the first step, Zhu Ming wants to establish his prestige, and he plans to recruit Yi soldiers in the future.

The Yi soldiers in Lizhou have a nickname called "Xiongbian Volunteers", which were recruited decades ago, and have since been disbanded and no longer used. Zhu Ming thinks this name is good, and he can take it with him to scare people.

(End of chapter)