Three hundred and sixtieth chapters in mind drum car
Li Siye pulled the beard on his chin and said calmly: "You don't have to worry about the drum cart. I have my own method for this."
Feng Changqing nodded suspiciously, thinking that General Li was talking big words. No one except the palace officials in the Imperial City had ever seen this drum cart before. It was so miraculous and ingenious that Zhang Heng, Ma Jun and others could not do it.
Most people simply cannot deduce its structure, let alone recreate it.
He carried the white silk behind his back, bowed towards Li Siye and crossed his hands: "If the general has nothing else to do, my subordinates will go down first. I will first mark the square inches of the map with an ink fountain."
Li Siye waved his hand towards him, letting him turn around and leave, while he himself began to lower his head in thought.
The drum cart was invented in the Eastern Han Dynasty. It is equivalent to the odometer of a modern car. The wheels rotate through the differential principle of gear transmission. The structural complexity is not as complex as that of a clock, but it is 1,700 years ahead of the West. Legend has it that it was invented by Zhang Heng
, but there is no explicit record. Its function was actually to be used as the emperor's chariot, also known as the Dazhang chariot, which ranked behind the guide chariot when traveling.
Legend has it that the Yellow Emperor invented the compass car. Starting from the Zhou Dynasty, the emperor used the compass car as the guide when traveling. In the Eastern Han Dynasty, the Ji Ligu car was added. In the car, there was a driver and a historian responsible for recording the emperor's daily life. This is why later people read history books and said
On a certain day of a certain year and a certain month, the emperor traveled eastward for a certain number of miles and arrived at a certain place. The mileage here was not estimated, but accurately measured by a drum car.
No wonder the ancients called maps maps. This is inseparable from the emperor's driving.
Li Siye silently calculated that Tang Li was measured by Li Shimin's double steps. One step was equal to five Tang feet, and one mile was three hundred steps. According to this, the wheels of the drum cart were made. The diameter was adjusted by adjusting the pi by a little more than three steps. In this way, the wheels
Every one hundred revolutions is one mile. Install a wooden gear on the wheel axle. The circumference of the large wheel and the teeth are ten times that of the small wheel. Then install another wheel on the side shaft and continue to adjust the gear ratio until the wheel rotates one hundred times.
, the top gear rotates once.
This is just the completion of the basic structure. Next, we need to install a drumming device. The dial is equipped with a bow string structure on the gear, so that the villain's drumstick presses on the drum surface, and the drum is struck every time the gear rotates. Of course, this
Not to mention, there is another device on top. When the drum is struck every ten times, the cymbals on the top layer will make a crisp sound.
The gili drum cart built in this way is far more accurate than measuring with feet. Although it still cannot solve the curvature of the earth and the problem of altitude, terrain and slope, it is already very powerful. From the early Jin Dynasty to the Ming and Qing Dynasties, the maps of all dynasties were
It is drawn according to this method and theory.
He returned to the main hall and lit the oil lamp. He sat in front of the desk and took out a fine pen and wrote on the paper. He continued to calculate and spent dozens of pieces of ephedra paper before sketching the overall structure and structure of the vehicle.
Drawings of other parts, outline the dimensions.
When he stretched and stood up, he realized that it was already afternoon, but he was so complacent that he didn't feel tired at all. He just wanted to get the real thing out as soon as possible.
Twelve Niangs entered the hall and saw the piles of waste paper on the ground. She couldn't help but look at him sadly, then lowered her body to pick up the papers.
Li Siye walked quickly to the door, where Yan Xiaosi was leading his soldiers to clear weeds and repair some dilapidated places in the yard.
"Little Four."
"Coming, coming, here."
Yan Xiaosi ran over quickly, stood at the foot of the steps and crossed his hands and asked: "Stop cleaning the place, as long as this place is livable, take a few people to the city and call everyone who knows the carpenter's craft to the town ambassador's office."
Come up."
The Twelve Mothers who were in the house couldn't help but secretly rejoice when they heard this. Li Lang was preparing to make furniture for the bridal chamber. In fact, there was nothing to do. He just wanted to make a wooden couch, two Hu beds, a dowry, and then find a craftsman.
There is no need to spend so much time grinding a bronze mirror.
Yan Xiaosi looked up at the sky, scratched his head and said in embarrassment: "Calling everyone over now, it will be dark when everyone is gathered together."
"You are right, then go and notify them today and let them come to work at the house tomorrow."
Yan Xiaosi immediately crossed his arms and said, "Here, I'll take the people there myself."
…
Shule Governor's Mansion is located on a higher ground in the south of the city. There is a two-story Persian round-arched building in the backyard of the mansion, with a flat-roofed house next to it. At this moment, Pei Guoliang, the Governor of Shule, is sitting on a beech bed on the roof to enjoy the cool air.
Two maids in Han makeup were gently waving their fans.
Pei Guoliang was sitting on the roof. Except for the city tower which was as tall as him and the Shule Town Envoy's Mansion, which could not be overlooked, most of the houses in the city had a panoramic view.
At this moment, he looked around and saw two teams of soldiers in the city searching alleys. The momentum was unusual, and he didn't know what they were doing.
Pei Guoliang is the descendant of the Shule royal family. His father Pei Anding was named King of Shule by Xuanzong in the early years of Kaiyuan. He also served as governor of Shule and was honored as Sima of Jianzhou. His father died of illness three years ago, and he was hereditary when he was less than twenty years old.
The position of Governor and Sima, but this King of Shule is not hereditary. Only with the care of the court and meritorious service can he be crowned by the emperor again.
Based on this wish, he was very concerned about the general of Shule Town who was stationed in Kucha by the imperial court. After all, his title of governor-general was empty and he had no real power. The only thing that belonged to him was the 2,000-man barracks formed by the local barbarians, whose combat effectiveness was compared to
The Tang army is also a lot worse. So I very much hope that the new envoy will be an ambitious and capable person who can lead him to upgrade and take off, just like Zhao Yizhen, the deputy governor in the 16th year of Kaiyuan, who teamed up with his father to defeat Tubo
, only then can the father be granted the title of King of Shule.
He felt something in his heart, raised his head and ordered the maid next to him: "Go, go down to the courtyard and call a slave to find out what these Tang soldiers are looking for in the city."
The maid snorted, turned around, entered the dome house, and went down the wooden stairs. She casually called a Persian slave in white to come over, whispered a few words to him, and then hurriedly sent him away.
After a while, the slave returned and nuzzled his ears next to the maid again. The maid nodded, turned around and walked up the wooden stairs back to the roof, squatted next to her master and whispered: "Alang, these Tang troops were sent by the new envoy.
Look for carpenters all over the city."
"Looking for a carpenter?" Pei Guoliang raised his eyebrows and asked, "Why is Li Siye looking for a carpenter?"
"How do you know this, slave?"
"I understand." He thought carefully for a while and then said to himself: "When I welcomed him into the city this morning, my wife also went to keep in touch and got acquainted with General Li's family. She learned that General Li
I have my unmarried fiancée with me, thinking that I will get married when I come to Shule City, so maybe I am building furniture for the wedding."
He thought he had figured it out, so he let out a long sigh and said, "I'm a little disappointed. Marriage is important, and as a man, of course I'm anxious. But when I first came to Shule and took office, I should set an example for all officials, and I should at least pretend to do it."
He will be busy for a few days, and then he will make plans for marriage. What he does gives people an...unreliable feeling."
"Wait and see, let's keep an eye on him for a few more days." He then raised his head and told the maid beside him: "Go down and prepare some gifts for General Li. The ones you need to get are the precious brocades from the Central Plains and the fine linen from Da Shi.
, Tubo Pulu will do."
"Here," the maid bowed her head and returned the money.
The prince of Shule stood up from his bed, looked at the cluster of flat-roofed houses in the city that was dyed golden in the dusk, and sighed quietly: "In the past, Li Du held office, and friends worked together to find a good colleague.