I was not allowed to go to her room, but she came to mine so easily.
Realizing Zhang Yang's eyes, Li Yue avoided it with a guilty conscience, "I see your room hasn't been cleaned for a long time. I'll clean it up. Who knew there were so many drawings?"
Li Yue whispered: "What is this thing used for?"
"This thing is not yet available, and there is no supporting algorithm or latitude and longitude."
"Then what is it used for?"
Zhang Yang explained patiently: "This thing is very powerful. If you are lost in a place, you can use this thing to look at the sun and the horizon, and use a formula to compare the longitude and latitude of the map to know where you are."
"Is the compass that my husband mentioned before the same thing?"
Zhang Yang shook his head, "The uses are different. Of course, the use of the sextant is also inseparable from the compass."
Li Yue frowned and thought.
Seeing that she was trying to understand, Zhang Yang whispered: "This requires formulas and longitude and latitude to be useful. Remember I told you that the world is a ball."
"Well, my husband said that he also made a model."
"Where is that model?" Zhang Yang looked around.
Li Yue pursed her lips and smiled, "Hang up my clothes."
Taking out a piece of paper, Zhang Yang explained while drawing: "The longitude lines connect the north and south poles, and the latitude lines connect the longitude lines. The longitude lines and latitude lines are used to determine the position and direction on the earth. Therefore, we can first determine the meridian, and we
The position on the ball can be determined by the intersection of longitude and latitude lines."
"Then how do we know where we are?"
Zhang Yang smiled calmly and said: "Cut the earth along the longitude 20 degrees west longitude and 160 degrees east longitude. The hemisphere from 20 degrees west longitude to the east to 160 degrees east longitude is called the eastern hemisphere, and the hemisphere to the west is called the western hemisphere. From this, we can understand the reference values of longitude and latitude.
…”
Patiently tell her that this knowledge will affect the way she understands the world.
"I will also teach these to our children in the future." Li Yue's pretty face had a smile.
Zhang Yang held her shoulders and sighed: "Because we are the only two people in the world who understand the world in the same way. To them, you and I are alien to them."
Li Yue smelled the scent of her husband, "But from a distance, the first thing you see is the flag, and then you can see the soldiers and horses."
Zhang Yang said discouraged: "It is difficult to change everyone's views, and it is even harder to make everyone understand our views."
Li Yue looked at the longitude and latitude map again, "It would be difficult to calculate other longitudes and latitudes."
Zhang Yang smiled and did not answer. He looked at his wife with renewed energy. She seemed to have a new goal.
Stroking Li Yue's silky long hair, it seemed natural to take advantage of his wife. This feeling was very strange. Zhang Yang whispered: "King Wei's geography can only be measured with footsteps, but this longitude and latitude allows you to see
worldwide."
The couple unconsciously lowered their voices. This knowledge is the biggest secret between them.
While people are still understanding the reasons for the warmth and coldness of the four seasons of the year and the replacement of day and night, Li Yue has already tried to understand the world. By focusing on the entire earth, she can see the mysteries of the world, which others cannot see.
vision.
This is a cognitive gap, and this gap is also a huge chasm. The inherent way of cognition is like a huge wall blocking their eyes. People try their best to know what is behind the wall.
Peering into the truth behind the wall, there must be another world there.
There are also people who spend their entire lives discovering some clues, but these are only a few.
Li Yue can raise the weapon of cognition and break open this wall. The whole world is in front of her.
Li Yue whispered: "The army is marching outside. Most of them rely on experience and guides to identify the direction and location. There are also armies that go deep into the desert and cannot find their direction. I have read some war classics in the Imperial College."
Zhang Yang nodded solemnly, "You can conquer a place and rule a place with brute force, but if you can understand the laws of nature before everyone else and use these laws to achieve large-scale destruction, then you will be an invincible person in the world.
.”
Li Yue grinned and said: "Husband, do you want to be that kind of person?"
"Your ideas are dangerous."
"How dangerous is it?"
"You want your husband to be a butcher."
"How can your husband be a butcher?"
Zhang Yang shook the fan in his hand and said, "You just have to tell me to rebel. The whole world belongs to us."
Li Yue covered her mouth and chuckled: "I didn't say that."
"That's what you mean."
Li Yue struggled to avoid Zhang Yang's clutches and fled into her room.
While other things are easy to make, making a sextant is too difficult. Not to mention how to make a high-quality lens, the manufacturing precision can drive people crazy.
The autumn hunting was over, and Li Shimin returned to Chang'an City to busy himself with government affairs. Wei Zheng stood beside him.
Now Li Shimin is very upset in his heart. He is upset that Wei Zheng was left behind during the Xuanwu Sect.
This Wei Zheng has to take care of everything. This time Qiu Lie was almost scolded by Wei Zheng.
It’s hard to be a wise king…
"Why is Your Majesty sighing?" Wei Zheng, who was explaining the government affairs of the DPRK, asked in confusion.
Li Shimin said with a straight face: "I regret that this autumn hunting has wasted so much people's power and food. It's my fault."
Wei Zheng nodded clearly, "It is a blessing to the world that your Majesty has such an understanding."
Not long after, Li Tai walked into the palace. In addition to Li Shimin and Wei Zheng, there were also three or two eunuchs.
First, he saluted. Li Tai saluted and said, "Father, I have drawn a picture."
After speaking, he handed over the picture.
Li Shimin took the picture and looked at the dense lines on it without frowning: "What kind of picture is this?"
Li Tai explained: "Father, this is a contour map. These dense curves are the terrain. The smaller the distance between these curves and the denser the arrangement, the greater the slope. The sparser the arrangement, the smaller the slope."
After hearing what Li Tai said, Li Shimin observed carefully, "This mountain is..."
"Father, this is the mountain top of Mount Li."
"I can see it." Li Shimin looked up at his son, "Why did you draw this?"
This chapter is not over yet, please click on the next page to continue reading! "Father, this picture is of great use." Li Tai cupped his hands and said: "When marching and fighting, you must look for the terrain. Look at the terrain. The terrain of the battle between the two armies has a great impact. If the soldiers have
With this map, you can understand where the terrain is dangerous. In the original map, mountains are mountains and water is water, but you don’t understand the direction of the water flow and the terrain.”
Li Shimin closed his eyes and rubbed his eyebrows, "You mean the mountain and terrain map?"
Wei Zheng stroked his beard and said: "I have seen similar pictures in ancient books. They should be from the Han Dynasty, but they are not as detailed as those in the hands of King Wei."
Li Shimin, who has many years of experience in marching and fighting, naturally understands the value of this kind of map. Taking advantage of the terrain to gain an advantage is a major factor in determining victory or defeat.
Li Tai bowed and said: "Father, you can arrange for people in the Ministry of War to learn how to draw this map. It will be of great use to promote the army in the future."
Li Shimin's eyes became a little more gloomy, "Did you come up with this?"
"My son..." Li Tai took a deep breath and gritted his teeth, "Returning to my father is just Zhang Yang's instruction."
"It's him again!" Li Shimin snorted coldly.
Wei Zheng bowed and said: "Your Majesty, Zhang Yang is not a bad person by nature. He is also a pure and kind person. He just neglects teaching."
Li Shimin put away the picture and said, "I have already asked Duke Zou to teach me."
Wei Zheng said in a low voice: "Your Majesty, I heard that Zhang Yang loves reading, and he is also knowledgeable. The post of Chaoyi Lang is still vacant, and there is a lack of someone to organize the classics. After Cen Wenwen assisted in compiling the geographical records, he no longer had time to organize those classics.
Li Tai was stunned on the spot. Chao Yilang was a civilian official, an official position without real power. He was surprised when Wei Zheng appreciated Zhang Yang so much.
Li Shimin said in a low voice: "I will consider it."
At this moment, Zhang Yang was still cleaning up the village. After the autumn hunting, the shops around the village were in a mess, as if they had been looted by bandits.
Ding Liao and He Bi looked at the pile of silver coins with a smile. This was their profit, each of them had sixty coins.
Zhang Yang calculated that after dividing all the profits, he would only have 800 strings left in his hands.
Why bother waving his knife, "Brother Xiao Zhang, you are a person who can make a lot of money. I was not wrong about you back then."
Ding Xuan smiled naively, "I'll just follow brother Xiao Zhang and I'll be satisfied if I can get a piece of the pie."
Ding Xuan is honest and honest, and he is a contented person.
Why live a free and easy life? He is still working in the store, maybe one day he will just leave.
The three of them started from a small shop and now have a considerable fortune in two years.
There are many soldiers next to the medical center who are coming here to see a doctor. They have wounds of various sizes and are dirty. More and more people are coming here to see a doctor. Sun Simiao has already planned to recruit some more doctors. Today, Xiao
The hospital is on the right track.
"You guys have to wash your wounds before you come back." Sun Simiao cursed angrily.
Most officers and soldiers in the army have very poor hygiene concepts. They don't know how often they take a bath, and they also have all kinds of strange smells on their bodies.
Sun Simiao's tantrum was justified. If the wound was not cleaned, infection would occur, which would be troublesome to deal with and could lead to death.
Just looking at it was unbearable. Zhang Yang also saw that some people's hair was caked in lumps, and they shivered as fat fleas fell to the ground.
Zhang Yang said to Shangguan Yi: "Set up a few large barrels at the entrance of the village. From now on, when officers and soldiers in the army come here to see a doctor, they will have to scald them with hot water, wash them clean, and kill all the fleas on their bodies before they can come in.
"
Shangguan Yi went to make arrangements after receiving the words.
If these officers and soldiers, who have little concept of hygiene, bring the disease to other people in the hospital, big trouble will happen.
Shangguan Yi's organizational skills are getting stronger and stronger, and the villagers do not regard him as an outsider. His status is even equal to that of Niu Chuang, who has always been in charge of affairs in the village.
Buckets of hot water were poured on them, and the officers and soldiers were asked to take off their clothes and jump into the scalding water one by one to clean themselves before going to the post house for medical treatment.
When people are clean, they don't need those dirty clothes anymore.
Just enter the hospital quietly and leave quietly.
Zhang Yang raised his head and sighed, the folk customs of the Tang Dynasty were really wild, "Brother Shangguan."
Shangguan Yi returned to God and said, "Do you have anything else to say, Mr. Zhang?"
"Get some clean cloths for them. It's indecent for them to cover themselves."
"Here."
"Wait a minute." Zhang Yang called to stop Shangguan Yi who was about to do something. "Just use clean old linen from the village, don't be too expensive."
"Here's the arrangement."
They finally had a piece of cloth to cover them...
Zhang Yang walked back to the village, and Li Yue was still clinging to his wife as usual, greeting her and chatting.
"Look at you, you bring so many things every time you come here. You haven't finished the salted pork and salted duck eggs you brought last time. So don't bring them next time." The wife held Li Yue's hand.
While talking.
He glanced at Zhang Gongjin who was playing chess with Li Yuan.
At this moment, Li Yuan looked solemn, and the situation on the chessboard was grim.
Zhang Gongjin looked up and asked, "What have you been busy with these days?"
"I am studying at home these days."
"What knowledge?"
"It's a kind of knowledge of looking at the sky to identify the direction and position." Zhang Yang put his hands in his hands and looked into the distance.
"Look at the position of heaven, are you Kanyu?"
"The teacher is right."
Zhang Gongjin moved the chess pieces, "It's better not to study this kind of miscellaneous knowledge. You should read more saints' classics, that will be useful to you."
"The books I have been reading recently in the Imperial College have been quite messy, which is why I have these emotions. Sometimes the contents of some books give me a lot of clues."
Li Yuan looked at the situation on the chessboard and said, "The person who went to the palace to buy me clothes today came back. News came from the palace that His Majesty plans to appoint you as an official again, and he is already on his way."
Zhang Gongjin squinted and looked into the distance, "Isn't this coming?"
Following the teacher's gaze, a group of soldiers was indeed heading here.
When the visitor got closer, he realized it was Qin Qiong.
Qin Qiong wore a futou and folded a scarf to wrap her head.
At first glance, he is wearing a round-collared robe and looks no different from an ordinary person. If he hadn't known the general, he would have thought he was an ordinary warrior who came out of some guard house.
Turning over and dismounting, Qin Qiong shouted loudly: "Zhang Yang! Listen to the order!"
Stepping forward, Zhang Yang bowed and was about to listen, but saw Qin Qiong stopped talking again.
He stood up straight again and looked at him suspiciously.
Qin Qiong remained silent, pacing back and forth for a while before speaking, "Wei Zheng recommends that you return to the court and serve as secretary and supervisor."
"I……"
"Don't talk yet." Qin Qiong took a deep breath, "I heard that you have a good medicine for healing wounds in your hand. Is this the case?"
"To be honest, General, I do have this kind of medicine in my hand. I call it golden sore medicine. It is a good medicinal material for promoting blood circulation and removing blood stasis, removing putrefactive tissue and regenerating muscle."
"A medicine that heals wounds is a medicine that heals wounds. It's not a golden sore medicine. That's not a good name."
"I think it's pretty good."
Qin Qiong simply found a clean stone and sat down, "It was originally the eunuch from the court who came to announce the decree, but I stopped him."
"General, you are so heroic. You stopped your Majesty's eunuchs as soon as you asked. You really dare to think and do it." Zhang Yang cupped his hands and said, "I admire you."
[Recommended, the Huanyuan app is really useful for chasing books. Download huanyuanapp here. You can try it soon.]
"In order for thousands of soldiers to seek medicine, a eunuch who passed the order stopped him immediately. I can afford it."
"The general does not hesitate to offend your majesty when he asks for medicine for the soldiers. It is truly an act of righteousness. I admire you for it."
Qin Qiong was breathing heavily, and she might have been in a hurry when she came.
Understanding the purpose of his visit, Zhang Yang nodded slightly, "General, do you want me to give the medicine to the army?"