Li Yuzhi left the Daming Palace complacently, and Anton's immigration problem was solved, and even the source of soldiers was available. Pen × fun × Pavilion www. ｂｉｑｕｇｅ。 The emperor agreed to send the criminals from all over the country to Andong, and the Metropolitan Protectorate organized them as the Tuntian Army to Tuntian in Andong peacetime, and used it as a source of troops to contain Silla during the war, and atone for their crimes.

Li Yu entered the palace alone in the early dynasty, and when he left the palace, he sat in a luxury carriage with two naughty children by his side. Li Yu's fifth brother Li Xulun and sixth sister Li Lingyue, the two are seven years old and five years old this year, typical porcelain dolls, pink little Zhengtai, and cute Lori.

I haven't seen him for almost a year, and my younger brothers and sisters know that Li Yu is pestering him after entering the palace, and this time they have to follow Li Yu back to Yanwangfu to play crazy for a few days, and the two of them are almost tired of being in Daming Palace for a long time.

"Fourth brother, is Anton more fun than Chang'an?" Xu Lun and Ling Yue asked Li Yu curiously, and the two of them, who rarely left the palace, were full of curiosity about the places thousands of miles away from the outside world.

"It's icy and snowy, the snow is thick enough to bury you both in it, and when you go out on a snowy day, you can immediately freeze people into icicles. Walking into the mountains and forests, the tiger roars and the bear howls, and the child can be swallowed into the stomach in one bite, which can be described as dangerous......"

Li Yu pretended to be serious and said, and the frightened two children looked confused.

Seeing this, Li Yu's face suddenly changed, and he laughed. Li Xulun didn't know why, and looked at the fourth brother strangely.

Li Lingyue was puzzled for a moment, and instantly knew that it was the fourth brother who scared them, and her little face immediately puffed up and glared at Li Yu angrily and said angrily: "Fourth brother, you are a liar!" ”

"Ah......h

The carriage suddenly jolted, and the carriage shook and bounced Ling Yue up from the chair and sat down again, Ling Yue screamed and covered her little ass that hurt, and pouted angrily.

Li Yu lifted the curtain of the carriage and asked what was going on.

"Back to Your Highness, it has snowed heavily recently, there are too many cars and horses on this section of the road, and Wannian County has not sent people to repair it in time, and there are some potholes on the road that are uneven and cause the carriage to be bumpy, please forgive me." The coachman replied worriedly.

"After returning to the palace, I must tell my mother, stop the black yarn of the magistrate of Wannian County!" Li Lingyue pinched her fist and said hatefully.

The coachman was in a cold sweat for a while, and he didn't dare to say a word.

"Let's go, just drive slower!" Li Yu waved his hand.

"No!"

The carriage slowed down and headed towards the Yan Wangfu.

Li Yu opened the curtain of the window and looked at the pit on the ground that was stepped on by the horses, and the deep shaft marks pressed by the tracks. sighs that even in the most powerful and wealthy capital of the Tang Dynasty in the world today, the streets are all dirt roads. When it snows heavily in winter, the dirt road becomes full of potholes when people and wagons step on it.

Three years ago, Li Yu and the children of the powerful families of Chang'an, who he had befriended, established the Xuanji Commercial Bank, which operated two major industries, cement and cotton planting and spinning, and the development momentum was good in the past few years.

Cotton planting was mainly led by Yanwangfu, leading a group of children of wealthy families in Chang'an to buy wasteland with slightly better hydrothermal conditions in Guanzhong, Shuofang, Longyou, Hexi and other places to build large and small cotton plantations. Then through the Hu merchants of the Western Regions, they purchased cotton seeds from Anxi and the slaves who could plant cotton to plant cotton, and recruited some local villagers to follow the slaves in the Western Regions to learn to grow cotton and develop the plantation.

This move is conducive to the diffusion of cotton in Datang and solves the raw material demand of Xuanji Commercial Bank for textile white stacked fabrics.

In the past three years, the price of white cloth in the northwest of the Tang Dynasty in Guanzhong has dropped by 10 percent, but the profit of Xuanji Commercial Bank has increased by more than 30 percent.

Although the price is not low, it is still much cheaper than the stone slabs made by stonemasons and the bricks fired by potters. It is also convenient to use as a smooth cement floor.

The carriage drove all the way, and seeing that the road surface of Chang'an City was really poor, Li Yu planned to suggest to his father that the streets of Chang'an be repaired with cement when he entered the palace next time. If it is completed, it will bring a large number of official cement orders for Xuanji Commercial Bank. I don't know how much cement it will cost to repair such a huge Chang'an street, and how much money Xuanji Commercial Bank will make, thinking about it, Li Yu is a little excited.

"Next time I leave the palace, I won't take the carriage, fourth brother, you can send me a pony."

Li Yu's thoughts were pulled back by the sweet voice of the little sister, and he saw Ling Yue looking at him longingly. Li Yu smiled, stretched out his evil right hand and rubbed his little sister's pigtails and said with a smile: "Ride a horse in the little grade, and be careful to become a Luo circle leg when you grow up." ”

"What kind of leg is a loop?" The two children asked inexplicably.

"It's the leg of the Huns recorded in the historical records! They grew up on horseback, so their legs grew into loops......"

"Ahh Ling Yue screamed, "The Huns are so ugly, I don't want them." ”

Immediately, Ling Yue pitifully hugged Li Yu's arm and said coquettishly: "But this carriage is really uncomfortable to sit on, and every time I leave the palace, I have to bump up and down." Fourth brother, you have to think of a way, can you make the carriage more stable. ”

Li Yu thought for a while and smiled: "There are two ways to make the carriage run smoothly. ”

The younger sister and the fifth brother looked at themselves intently, and Li Yu said eloquently: "First, the road surface will be smoothed, such as the paved stone road in the Daming Palace; The second is to build a four-wheeled carriage, and the bottom of the carriage has a shock-absorbing spring to make the carriage run less bumpy than it is now. ”

"Fourth brother, paving the road is a bit mysterious!" Asahi said disappointedly.

Chang'an City has been like this for decades, and the repair is to fill the pit with earth and stones.

"What about the four-wheeled carriage? Did the fourth brother make it? Ling Yue was very interested in Li Yuti's four-wheeled carriage, and asked hurriedly.

Li Yu touched his nose and said with some embarrassment: "This is expected, it should be no problem to build, but it will take some time!" ”

It turns out that there is no such thing! Li Lingyue was a little disappointed, as for paving the road, it was still forgotten, Chang'an is so big, for Li Lingyue, who has been smart and clever since childhood, naturally thought that it would be impossible to repair the road surface in Chang'an in a short time.

The carriage drove back to the Yanwang Mansion leisurely, and the four daughters of Xin'er were already waiting at the door.

Li Lingyue and Li Xu got out of the carriage and saw Xin'er and them, so they left their brother Li Yu and happily rushed to Xin'er's side.

The two siblings pestered Xin'er and told them what happened to Anton, and Li Yu was too lazy to go back to the study after being free.

Spread out a 4.5-foot piece of rice paper, and draw on it with pen and ink.

Li Yu can also make paper with exquisite craftsmanship in the paper mill by the Bahe River in Chang'an, but the texture is still not comparable to that of rice paper.

In addition to exquisite craftsmanship, the most important thing is that the quality of rice paper is related to the water and soil of Xuanzhou Jing County. Even if you master the production process of rice paper, there is no raw materials such as sandalwood, straw, and water produced in Jing County, and although the rice paper produced is good, the quality is still not as good as the rice paper produced in Jing County.

This point was well explained by the cunning Japanese in later generations. By deception, he obtained the manufacturing process of rice paper from the coastal Chongyang Meiwai manufacturers who cooperated with Jing County Xuan Paper Factory, and became a major producer and exporter of rice paper outside country Z, although the quality is good, it is always inferior to the rice paper produced in Jing County.

"Fortunately, in his early years, he studied under Yan Liben, a great painter in the early Tang Dynasty, otherwise it would be difficult to paint the four-wheeled carriage of the West in later generations." Li Yu smiled lightly and looked at Xu Xu Rusheng's four-wheeled carriage in front of him with satisfaction, which took two hours to draw.

When I returned to Chang'an this time, I experienced the pleasure of the bumps on the road, and strengthened Li Yu's mind to build a four-wheeled carriage.

The only technical problem is the spring, but the cast iron city has even solved the technical problem of steelmaking, and a large number of skilled craftsmen under his command still can't get the spring?

Li Yu took the drawings of the four-wheeled carriage and left the study to find the palace craftsmen. The main sales markets of several major commercial houses are either Chang'an or Luoyang, so Li Yu still left many skilled craftsmen in Chang'an.

After finding a craftsman to explain, Li Yu handed over the drawings and waited for the four-wheeled carriage prototype.

The springs were handed over to Li Yu in an industrial zone south of the confluence of the Chan and Ba rivers, in the triangle area.

Most of Li Yu's products come from various workshops in the industrial zone established here.

When he passed by the stable on his way back to the study, Li Yu saw the groom shaving the horse's hooves. The history of hoof shaving is very early, and the earliest is "Zhuangzi Horseshoe", which records in detail how to care for the horse's hooves, so that the horse's hoof armor is neat, which is conducive to the horse's long-distance gallop.

Li Yu thought that the groom would nail the horse's shoe after shaving the horse's hooves.

But after the groom finished shaving, he didn't mean to nail the horseshoe at all, and Li Yu didn't see the horseshoes and nails to be used when he looked around.

Puzzled, Li Yu stepped forward and asked, "Why don't you nail the horseshoe?" ”

Looking at His Royal Highness King Yan, the groom said in a panic: "The villain sees His Highness!" ”

"What about you?" Li Yu was a little impatient.

The groom looked around and replied: "Your Highness, the villain understands that the Tang Dynasty is not popular to nail horseshoes to horses, so there is no horseshoe nailing." ”

"Why isn't it popular?"

"The villain doesn't understand either."

This is really strange, Li Yu has been in Datang for thirteen years, and he has seen someone's horse nailed to the horse, can it be said that it is not popular?

Horseshoe appeared as early as the Sui Dynasty, but it was not until the Yuan Dynasty that it was popular to nail horseshoe.

Li Yu didn't know the development history of horseshoe in country Z, and thought that it should be applied on a large scale when horseshoe appeared, so he made a big fuss.

"God, none of the horses used by my cavalry are nailed to their horses!" Only then did Li Yu remember that he had neglected such an important small part as a horseshoe.

A few horsemen looked at His Royal Highness King Yan strangely.

"From today onwards, all the horses in this palace will be nailed to me!"

"No!" A few horsemen agreed, but they were a little strange in their hearts, why did King Yan suddenly want to nail the horseshoe to the horse? Isn't it like this for a few years?

Li Yu hurried back to the study, picked up the paper and ink and drew the oval farrier that he had seen in his previous life. After the drawing, I wrote a letter and stuffed the two in an envelope.

"Someone."

"The subordinates are here."

Li Yu handed the letter in his hand to the attendant and said, "Immediately send someone to send this letter to Pyongyang and hand it over to Changshi Li Yuan." ”

"No!"

Looking at the departing attendants, Li Yu was a little proud, and another invention will be carried forward in my hands.