Traveling through history leaving a name

Chapter 7
Jiao touched the general's mansion, and a little old man walked in leisurely.

In a gazebo of the General's Mansion, there was a middle-aged man playing chess with several people. Around them, there were countless soldiers guarding them, which faintly set off the extraordinary identities of several people.

"Mr. Zhao, why are you so idle today?" The middle-aged man asked the little head with a smile.

"General, I have nothing to do, so I came here to ask for a drink." The little old man called Mr. Zhao said to the middle-aged man with a smile.

"Mr. Zhao, come on. I have lost two games in a row. Come and play with the general for two games." A young man who was playing against the middle-aged man said.

"Then I'm going to be disrespectful, and I'll accompany the general to play two games." Old man Zhao did his job, stepped forward and said.

"Mr. Zhao, the newly harvested autumn grains have been put into storage. The governor has allocated a lot of grain these days. Is there any problem with you?"

When the two played against each other, the middle-aged man said to Old Man Zhao.

"General, don't worry, I have a dozen very talented scribes under my command. I entrusted them with the work, and they handled the matter in an orderly manner. They solved the problem of new food in two days. So, Am I free now?" Old man Zhao said quite proudly.

"Oh? It seems that you have found some good helpers."

…………

Just when Du Fu and his group became scribes in Yuan Xi's army, in Erdaogouzi Village in Taihang Mountains, Zhang Qingfeng had just led the villagers to harvest the wheat.

After harvesting the wheat, Zhang Qingfeng led the villagers to plant other crops.

It was not until the slack season that Zhang Qingfeng had enough time to teach students.

Because of the matter of arresting young men last time, Zhang Qingfeng now attaches great importance to students, and he almost does his best to teach students.

For students who have completed the basic knowledge, he will also solicit the opinions of the students, and then teach students in accordance with their aptitude and teach some special subjects.

Time passed quickly, and it was the end of the year in the blink of an eye.

When the Chinese New Year was approaching, there was finally news outside that Du Fu, Zhang Qingfeng's student, had returned.

Li Bai, Du Fu and the others did well in the army and gained the trust of Old Man Zhao.

This time I asked for a leave of absence to return to the village, mainly to bring back the news that Erdaogou Village had gone out to serve as a soldier.

The villagers were naturally very happy to hear that their relatives were still alive.

From Du Fu's mouth, Zhang Qingfeng also knew a lot of things outside.

This year, a lot of things have happened outside, and at Du Fu's level, he only knows about some of the events.

Yuan Shao's third son Yuan Shang attacked Yuan Tan, the eldest son who secretly surrendered to Cao Cao. Cao Cao sent troops to rescue him, and then captured Yecheng and relieved Yuan Tan's siege.

At the end of the year, the rescued Yuan Tan rebelled against Cao Cao, and Cao Cao sent troops to attack Yuan Tan in December.

As for the result, the specific situation of the battle is unknown, and Du Fu doesn't know either. He only knows that Yuan Xi's army has begun to prepare troops to prepare for Cao Cao's attack on Youzhou at any time.

In fact, Du Fu didn't need to say, Zhang Qingfeng already knew that Yuan Tan would be defeated this year in history, and in the first month of this year, that is, in a few days, he would be killed by Cao Cao's soldiers.

The time has entered 205 AD, and this year will be another year of war.

This year, after Cao Cao conquered Yuan Tan, he would take advantage of the victory to defeat Yuan Shang and Yuan Xi in one fell swoop, and flee to western Liaoning to seek refuge with the Wuhuan tribe before giving up.

"Du Fu, you must take care in the army."

When bidding farewell to Du Fu, Zhang Qingfeng could only say this.

From Du Fu's mouth, he knew that they were currently serving for Yuan Xi's general Jiao Chu, so he was relieved.

Because according to historical records, when Cao Cao attacked Yuan Xi, Jiao Touch would rebel against Yuan Xi and defect to Cao Cao.

In this way, at least Du Fu and the others don't have to fight Cao Jun desperately, so their safety is guaranteed.

After Du Fu returned to the military camp, he told Li Bai and a group of people about the situation in Erdaogou Village. After hearing that everything was fine in Erdaogou Village, everyone felt relieved.

"Du Fu, Li Bai, you two come with me to see the general."

On this day, old man Zhao found Du Fu and Li Bai.

Half an hour later, the three arrived at General Jiao Touch's mansion.

"Is that what you said, very talented Du Fu and Li Bai?"

Jiao Touch saw Du Fu and Li Bai, who were only seventeen or eighteen years old, with doubts on their faces.

"General, this Du Fu told me about the double-entry bookkeeping method, and the quill pen was made by Li Bai."

"Through these few months of getting along with each other, I have learned that they are truly talented people, so I recommend them to you, general." Old Zhao said to Jiao Chu.

"Since they are recommended by Mr. Zhao, I will naturally reuse them, but before that, I still have to test them." Jiao Touch said with a smile.

"Everyone sit down and talk." Jiao Touch greeted Old Man Zhao and the others.

"Your name is Du Fu, right? I don't know who your teacher is?" Jiao Touch asked Du Fu.

"Back to the general, my teacher is Mr. Ruixiang." Du Fu replied.

"Mr. Ruixiang?"

Jiao Chu thought for a while, he had never heard of this name, so he asked again, "Then what did you learn from your teacher?"

"Back to the general, we have learned many things, such as mathematics, physics, geography, natural science, politics, agronomy, water conservancy and so on."

"This...it sounds like I have learned a lot, can you explain it in detail?" Jiao Touch asked Du Fu.

"Well, okay, let me talk about mathematics first. Mathematics is amazing. For example, if you want to know how high a mountain is, you only need to set a point in the distance, measure the distance and angle from this point to the mountain, and you can Calculate the height of the mountain."

Du Fu said: "What is more useful is that after learning mathematics, you can calculate the various materials and manpower needed for a war. For example, if there is an army of 2000 people and it needs to carry 30 days of food and grass, how much food and grass will be needed? You only need to use mathematics. You can figure it out.”

"Well, I understand mathematics. Tell me about other things, such as physics." Jiao Touch said to Du Fu.

"Physics is the principle of everything."

Du Fu said: "Everything has its reason. For example, why do pears fall to the ground instead of the sky? There is also a reason."

"What's the reason?" Jiao Touch was aroused, so he asked.

"Because everything has gravitation." Du Fu said: "Gravity is the force of attraction. The greater the mass, the stronger the gravitational force. The mass of the ground under our feet is very large, so it can attract things."

"For example, the ground under our feet is round, but it keeps people from falling, because the ground attracts people."

Hearing Du Fu's words, Jiao Touch didn't understand a lot of things, he only felt that they were very profound, with a feeling of ignorance.

I just heard Du Fu continue to say: "Everything in the world has its own principles. After we learn the principles of all things, we can make many useful things, such as pulleys. If the principles work well, we can save effort."

"For example, an ordinary person can only lift one or two hundred catties at most. If he uses a pulley, he may lift a thousand catties..."

"Then isn't he a strong man?" Although he didn't understand what a pulley was, Jiao Touch was still surprised when he heard that a person could lift a thousand kilograms.

(End of this chapter)