readx;?“ Oh? Cao Pi couldn't remember what intersection he had with Xiahou Yuan's daughter, and he felt a little strange in his heart. Pen, fun, and www.biquge.info

Cao Zhen had already taken off the horn bow that Cao Pi was hanging on his horse at this time, and then hung up the tuomu bow, and said while hanging it back: "The son-in-law of the Xiahou family said that this bow is given to a confidant. ”

Cao Piqi said: "Confidant? ”

Cao Zhen waved his hand again and again: "Brother still don't ask my brother, this son-in-law and my brother are just saying this." ”

Cao Pi thought about it again, and suddenly remembered that when he met Xiahou Yuan a few years ago, he had told him the way to leave his daughter in Xudu, and that method was to leave the maid who was familiar with his daughter, instead of taking it to his hometown to marry. After figuring out this joint, Cao Pi couldn't help but be a little more curious about this woman.

"Brother Xian and this son-in-law are very familiar with each other? Do you know the name? ”

"Xiahou Juan, my younger brother has been with Uncle Miaocai for several years, and he has met more or less a few times, he can be regarded as a beautiful woman, a little more beautiful than Shu'er, and a little more gentle than the tigress of the Lu family."

"Since it's a beautiful woman, it's fine." Cao Pi thought so in his heart, completely ignoring Cao Zhen's obscene smile.

Sanyang-gun is to the east of Chenliu, and you can reach Sanyang through Chenliu, and you can reach Chang-eup, the seat of Sanyang, in one day. Cao Pi and his entourage continued to rush to Shanyang after resting overnight in a large county closest to Shanyang, Cao Pi saw a lot of county soldiers and townsmen along the road, and there were some guards organized by the big clans wandering around, as long as there was a little sound, this group of people was like a group of lions chasing prey, rushing up in a swarm, obviously Cao Cao's reward had a very good effect.

Shanyang County is located in the alluvial plain of the Yellow River, which is a plain formed by the sediment deposition brought by the Yellow River, which is generally flat, fertile and abundant. But because there are a lot of coal mines here, people now like to call this thing Qiaoshi, during the Eastern Han Dynasty, coal has been a common household fuel, so the people here do not farm, but rely on the mountains to eat the mountains, to dig coal in exchange for money and grain to support themselves, the big people here also like to circle a large area of land in the mountains to hire people to dig coal, so there are not many people farming in the whole Shanyang County.

If you want people in Shanyang County to like to plant something, that is the tree, the land here is fertile, the four seasons are distinct, and the water source is sufficient, planting trees is a good livelihood, most people plant tomentos, large-leaved boxwood or small-leaved boxwood, this poplar can not only be used as a pole for weapons, but also can be used to sit on furniture and the pillars of the house, so it can be said that Shanyang County is a field of five trees, four into coal, and one into a field. Naturally, this kind of place is not suitable for the development of hybrid rice, the ground is dug up, and the leftovers of coal mining will also pollute the water source, and the quality of the rice grown will not be very good.

But this does not mean that Shanyang County does not have Tuntian camps, on the contrary, there are five Tuntian camps in the entire Shanyang County, and all of them are military camps, which are rich in trees and coal mines, and are the best place to smelt weapons. Now Cao Pi and his entourage came to the outside of the largest military tun backed by the Yellow River, twenty miles northwest of Changyi, the seat of Shanyang County.

Cao Pi was greeted by an old man who couldn't stand up straight, the old man was sitting on a bed of beard, the fur hanging on the rickety body seemed to be wrapped with a piece of shriveled old bacon, seeing Cao Pi and his party riding a horse The old man stood up with the support of the two boys, and when Cao Pi came to him, the old man shook off the boy's support and trembled to Cao Pi, and said: "Shanyang Taishou Liu Hong and Liu Yuanzhuo meet the son." ”

Cao Pi almost got off the horse when he heard this person introduce himself, he knew that Shanyang County was too shou surnamed Liu, because most of the county guards here were children of local clans, otherwise they were also children of neighboring counties in the same state, there was nothing new, Cao Pi would not ask for his name, the moment he saw this old man, Cao Pi was still a little puzzled, why didn't he go home to care for the elderly when he was so old? It is said that his own children should also become talents. But after hearing the name Liu Hong, Cao Pi knew that this old man was a character who couldn't be idle all his life.

In the Department of Mathematics, if you want those doctoral supervisors with noses in the sky to say a person who convinces them, it is right to be Liu Hong and Liu Yuanzhuo, the sages of the late Han Dynasty, who used mathematical principles to compile the Qianxiang calendar not only calculated the trajectory of the moon, but also further reduced the deviation of the five-star gold, wood, water, fire, and earth conjunction, and invented the "positive and negative number abacus" on the basis of nine chapters of arithmetic, which is the spokesperson of the abacus of later generations. This kind of demon called him "a saint", and no one disagreed.

Seeing the old Liu Hong saluting to him, Cao Pi also felt a little unbearable, and immediately dismounted and saluted back: "It's too polite!" It has long been heard that the accuracy of Yuan Zhuogong's dry elephant calendar has far exceeded the four-minute calendar. Spring planting and autumn harvest, the four seasons are clearly dependent on the calendar, and being able to count the days according to one day is the biggest difference between man and beast, if there is no calendar, we are no different from beasts! Yuan Zhuo's Gregorian calendar is more than the predecessors regarded as the act of educating the people, such a big gift, Cao Pi can't afford it. ”

Cao Pi behind everyone is also in awe, in the ancient calendar is a very sacred thing, Yang Biao is now too often, there is a duty is to take charge of the sky when the ephemeris plays the chronicle, Jiuqing to manage this thing, it can be seen how important the ancients attached to this, no one in later generations will feel how important it is to distinguish time, but throughout the ages can count the days and live only human beings, to a certain extent, human progress and mastery of more time laws are inseparable, at least in the agricultural society This is particularly important.

Liu Hong said with a smile: "If other people say that they can't stand the old man's gifts, the old man may be able to do it, but the son says that he can't stand it, then it really makes the old man embarrassed. The calendar has been from generation to generation, and the actions of the son have been unmatched throughout the ages! ”

Cao Pi smiled, the closer people are to the truth, the more they know the greatness of hybrid rice, there is no doubt about it, he stepped forward to help Liu Hong walk into the military tun, but said with a smile: "I have to take a while in Shanyang, and I have to ask Yuan Zhuo Gong for advice on the study of mathematics." ”

"Oh? Childe is also interested in the study of mathematics? Liu Hong is very happy, in his eyes, Cao Pi, who can double the grain, should be a genius, if he can study arithmetic, he will definitely be able to go further than himself.

"Exactly! Precisely! Cao Pi said while pulling Liu Hong to a room in Juntun, encountering such a national treasure, not promoting the development of mathematics, Cao Pi felt too sorry for the blood of the Han family.

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