This traveler only wants to choose the lowest difficulty

Chapter 292 Li Chunfeng

In September, on the land of Guanlong, the scorching heat brought by the autumn tiger has not subsided, and the people of Chang'an are sinking melons and floating plums to survive the unbearable heat.

At dusk, Li Chunfeng, the servant of the Taishi Bureau, sat in the small courtyard of his home, playing cattail fan, and watching his concubine holding his youngest son and playing with cicadas under the big tree, enjoying the family happiness, Li Chunfeng Can't help but beard repeatedly.

At the age of thirty, he became a general of the Taishi Bureau. Although his official position is quite inconspicuous, and as a technical bureaucrat, he probably has no chance of advancement in his life, but in this era when ordinary people admire luck, Li Chunfeng, as a well-known alchemist , in daily life, I can always help people with face-to-face surveys to earn some extra money, so life in Chang'an is pretty good, as a small official of the Taishi Bureau in Chang'an, I can actually buy an old house with ancient trees , It can be regarded as a sideline business.

Li Chunfeng watched the child catch him, then looked at the weather, and suddenly dipped his hand in some tea and held it in the air. After feeling the slight autumn wind in the courtyard, he made calculations. After a long time, he said to himself: "This year. It was a good harvest."

At this moment, a servant boy came to Li Chunfeng and said to Li Chunfeng, "My lord, there is a servant from the county lord's family outside to post a post."

"Oh," Li Chunfeng nodded, "bring up the posts and gifts first."

In ancient times, unless the status of the person being visited was much higher than that of the person being visited, it was not said that if you rushed directly to the person, you would meet the other person. Logically, you should first post a post to ask for a meeting, and then wait for the other party to arrange a meeting time. Otherwise, if you run into someone’s home It would probably be embarrassing to rush to the door if you have guests or you can't meet for something.

Li Chunfeng was not surprised that a county lord came to pay a visit.As a famous alchemist, nobles from Chang'an often come to ask him for fortune-telling or geomancy. The county monarch is naturally considered a good person in Shanzhou City, but in Chang'an, there should not be too many women with the title of county monarch. .

Li Chunfeng thought that this person might be an old lady of some family, or she wanted to choose a cemetery for herself and her husband in advance, or it was not a big deal for her own children and grandchildren, so she came to visit in advance.This is also his common time to earn extra money.

After waiting for a while, the boy servant and an older steward picked out a load of presents, and came to the courtyard with a gift list and a few letters.

Li Chunfeng first opened the invitation letter and looked at it carefully, then nodded. It turned out that the person who posted the letter was Yang Shi, the mother of Wang Huiwangcai, the Zuobie general of Zhechong Prefecture, Shanzhou. He opened the letter again and carefully looked at it. , and then couldn't help frowning, according to the description in this letter, his apprentice Liang Shu was actually working in the farm of Zuobie General Wanghui in Zhechong Prefecture, Shanzhou at this time, which was quite beyond Li Chunfeng's expectations.

"This boy..." Li Chunfeng couldn't help frowning, and instead of being a good official, he went to a military officer's village to do things for others, even though Liang Shu's family was rich enough that he didn't need him to do anything in the officialdom This kind of behavior is too outrageous.

Regarding Wang Dong, Li Chunfeng thought about it carefully and found that he had no impression.At the beginning of the year, he had heard that Hou Junji had done a good job in fighting Tuyuhun last week. One dispatch of troops helped to stabilize the chaotic state affairs of Tuyuhun, and the new king of Tuyuhun could take office safely. However, Li Chunfeng did not go into details learn.

In the past few years since the founding of the Tang Dynasty, the armed forces have been really strong, and the barbarians have conquered them. Even the Eastern Turks have been wiped out. What kind of big deal is a Tuyuhun?As for Wang Hui, who only showed a small face in the Battle of Tuyuhun, it is normal that the citizens in Chang'an don't even have any memory of their names.

Li Chunfeng hastily read through Yang's letter, and was more concerned about his ignorant apprentice, so he asked his servant to search through the letters for a while, and he found a letter written by Liang Shu. Li Chunfeng took the envelope and opened it. , took out the letter paper, shook it, and opened it with a cold hum.

After looking at the letter paper for a while, Li Chunfeng repeatedly bearded, raised his head and said to the boy servant: "Open the gift and look for a stack of manuscripts inside. I want to see what is so wonderful about the strange man in Longxi, so that he will not even be an official. .”

The boy servant hurriedly opened the big gift box, took out stacks of cigarettes and cans with the old servant, and then found a thick stack of letters in the corner of the box.

Li Chunfeng was startled when he saw the big stack of books. He didn't expect Liang Shushuo to send him so many books, and it was not convenient to read them in this yard, so he got up and said, "This gift and letter Pick them all up and put them in my room."

After speaking, I will enter the room.

"Master, don't you need dinner?"

"Wait a minute, I'll come as soon as I go, I want to see what kind of skills this king has, and Liang Shu even refused to be an official."

Hearing what Li Chunfeng said, the nurse and concubine looked at each other in blank dismay.

Li Chunfeng walked into the study.First, I opened the top one of the stack of manuscripts, and saw that it was a thin book with "Artillery Shooting" written on the cover.

Artillery fire?It sounds like playing a trebuchet, can this thing also be called learning?Li Chunfeng frowned, opened the book and read it for a while, and it really was the operation skills of the trebuchet. Seeing the data of the weight of the large stone, the length of the rope, and the length of the catapult arm, Li Chunfeng directly turned to the back.

The knowledge of the world, if you have a deep understanding of the way of arithmetic, you can measure the sky, measure the map, and you can enter the Tao, but the operation manual of this trebuchet is obviously only the first-class technique. In Li Chunfeng's opinion Come to think of it, although it has certain research value, it is not worthy of Liang's statement at all.The genius put all his energy into research, let alone dismissed from office and went to other people's farms to do research. He couldn't help but feel a little contemptuous in his heart. He didn't think it was a problem to turn over the first few pages of complicated data without looking at it.

So Li Chunfeng glanced directly in the middle, and then faced the dense formula, he couldn't help frowning.

What is it all about?

The expression method of mathematical formulas used by Liang Shu is basically what he learned from Li Shanlan’s algebraic calculus, which is very weird. He directly uses Chinese characters to represent algebraic symbols such as xyz, and then inserts them into Western mathematical formulas. Li Chunfeng said that even if he showed it to Wang Dong, he would have to be stunned for a while. Li Chunfeng was stunned when he saw this big lump, staring at it for a long time like reading a book from heaven. He would not be able to understand this kind of thing, so the more he could not understand it, the more he immersed himself in the research. Finally, after more than ten minutes, Li Chunfeng had no choice but to find that he had no clue.

This made Li Chunfeng quite angry. He knew that the reason he couldn't understand was not because the formula was too complicated, but because Liang Shu used a new way of expression. His apprentice didn't stay long in Longxi. I forgot all the concise expressions in it. How can I use such a strange arithmetic expression?

But helplessly, he still wanted to find out what these formulas meant, so he could only turn back and start to look carefully.

Then Li Chunfeng gradually fell into it.

"Well, if you want to calculate the trajectory of the trebuchet, you have to fit the formula of this parabola first. It makes sense..."

"Oh...it turns out that there will be a gravity constant in the formula of the gravity parabola. Huh? Gravity?"

"Gravity is an expression of gravitational force...huh? Gravity?"

"The laws of gravitation can be derived from Kepler's laws... What is Kepler?"

"Kepler's laws are further divided into three, the first one: the orbits of all planets around the sun are ellipses, and the sun is at one focus of the ellipse..."

"Huh? I've been watching the stars for half my life, why don't I know?"

"Fake, fake... eh? It can't be true..."

"Find the star map... find the star map..."

"Master, you haven't eaten anything tonight." The concubine came to the door of the study with a food box in one hand and an oil lamp in the other. Her call made Li Chunfeng look up, and seeing Li Chunfeng's appearance, the concubine couldn't help being frightened With a jump, I saw my master's beard was messy, and the clean official uniform was full of ink stains. It seemed that the calculation was too excited, and he didn't realize that his hands were stained with ink, so he touched his beard and wiped his face. So at this time, Li Chunfeng Their faces are also painted like cats.

Li Chunfeng stared blankly at the concubine, then suddenly walked in front of the concubine.

"master!"

The concubine handed over the food box, and then watched Li Chunfeng completely ignore the basket of food and snatched her oil lamp, then ran back to the desk with the oil lamp without saying a word, and continued to work hard.

(End of this chapter)