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Chapter 361 A great victory

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    Yunyao's attitude is too bad. You can't do anything to me. Even if I play with you, your arrogant attitude will be written on your face.

    The warriors grasped the hilts of their swords one after another, and the fight between men and women might turn into a fight at any time.

    "I have answered the question, but you are lying and refusing to admit it, which is a shame." Kangtai said that his method of turning a curve into a straight line had solved the problem of the circumference of a circle.

    "Then you didn't answer the second question."

    "You go too far to bully others." Kangtai stood up and angrily accused Yunyao of bullying others.

    "It seems you are the ones who go too far to bully others. I studied under my master and sincerely pursued the truth of heaven. I have not offended you. You just followed the wind and came to trouble me thousands of miles away. You still say that I went too far to bully others? I want to  I want to ask you if you dare to swear to God that you come to me to debate today for the truth of Heaven and for the sake of the people of the world. If not, I will be struck by lightning. I think you don¡¯t dare at all, because you just can¡¯t stand me.  So I came here to provoke, not to seek the road. Are you only allowed to provoke and not allow me to fight back?"

    "Okay, okay, you are articulate and we won't argue with you. Then you can answer how to get the length of a circle without a rope?" If the other party can't answer, Kangtai will definitely lead the group of tourists to attack.

    "It's very simple. You can just draw a circle, and then use your method to find the length of the circle. Then we will compare and find out."

    Wei Chugong said that this was simple, so he asked people to draw a circle.

    Drawing a circle is very simple. Just set a dot and then pull the rope around the dot to form a neat circle.

    Wei went out to find various ropes, long and short, and first drew three circles, and both sides made calculations respectively.

    "This one is one foot, two feet, three inches and six cents. This one is three feet, one foot, nine inches and two cents. This one is four feet, three feet, seven inches and four cents." You Shi didn't even calculate the first one. Yunyao had already calculated the circumference of the three circles to the minute.  .

    Naoki, Kangtai, and Shang Jing were sweating profusely. After measuring the first circle, it was ¡®one foot three feet¡¯. The calculation error with Yunyao was not small.

    Is there no error?  The rope is elastic, but it can expand and contract. How can we completely measure the accurate circumference of a circle?  Moreover, the error of the rope appeared twice. One was when measuring the circle, and the second was when measuring with a ruler. There were errors both times.

    Everyone is already confused, because although Yunyao's calculation is different from the measurement result, it is very close. At this time, the audience is not sure who is more accurate.

    "The second one is three feet three feet." The error is even greater, but in everyone's opinion, three feet three feet and three feet one foot nine inches and two points are also completely acceptable errors.

    Xin Fang, who was in the crowd, couldn't help but laugh. Yunyao is a god. Can't he tell how long a circle is by counting with his fingers?  These people are also asking for trouble. Yunyao just worshiped Confucius as his teacher. These guys gathered around him like flies. They were really annoying. Xin Fang didn't like aggressive tourists either.

    But this time Xin Fang was wrong. Yunyao didn't do the math and used the formula of the circumference of a circle.

    The last one, Kangtai said embarrassedly: "It's four feet and three feet." This time it was similar to Yunyao's calculation.

    Wei Chugong looked at Confucius and said, how can this be judged?

    Confucius was also in trouble.

    But I heard Yunyao say: "Why don't you just use the longest rope to draw a big circle."

    Using the longest rope as the radius, the circle drawn is far beyond the measurement range of the rope.  When the time comes, Yunyao can still calculate, but Youshi will not be so easy.

    Confucius said: "I don't think so. Yunyao, don't show off. How did you calculate it?"

    For the sake of the teacher, Yunyao explained the relationship between pi and the circumference of a circle. This was not something that could be easily explained clearly. Balabala talked a lot, but obviously no one around her understood, and they yawned.

    As long as you know the radius, you can know the circumference of the circle by plugging it into the formula.

    But even if there is a formula, it is not easy to complete the calculation. I still asked a craftsman to do the calculation, only to find that this was indeed the case.

    The three travelers knew that they had lost. Although they did not understand, Yunyao did understand some unclear things.

    "What exactly does this mean?" Wei Chugong didn't understand, but he still wanted to ask.

    "This is geometry. I think the monarch should know that when measuring land, he often needs to calculate the length of the line and the area of ??the field. Lines have lengths and fields have sizes. If you learn geometry, it will be much easier to calculate." The earliest geometry is  Born to measure land.

    It is said that geometry first appeared in ancient Egypt. Because the Nile River in ancient Egypt flooded, even once a year, the land had to be measured every year. Over time, a large amount of data was accumulated, and the earliest geometry was deduced.?Formulas and geometry later spread to ancient Greece, became very popular, and became the threshold of intellectuals.

    In the Central Plains, it is impossible to say that one does not read the Book of Songs, while in ancient Greece one does not learn geometry, so don¡¯t talk to me.

    There is also a need to measure land in various countries in the Central Plains, but it is not that frequent. Therefore, the great development of geometry did not occur until the Han Dynasty. The main development during the Qin and Han Dynasties was the political system that sought long-term peace and stability.  And if the Yellow River also floods every year, the Central Plains will definitely think of water control instead of re-surveying the land every year.  After all, the environments of the two civilizations are very different. Flood control in the Central Plains was due to the overflow of the Yellow River, and flooding the land was a loss.  Because ancient Egypt was in a desert area, rivers flooded, which brought moisture and nutrients to the land, allowing food to grow better.

    The environmental gap allows civilizations to choose different development directions.

    Of course, there is also a lot of mathematical knowledge in water conservancy, but the water conservancy scientists in the Central Plains have not summarized the formulas, only rough calculations and projections.

    In ancient Greece, geometry repeatedly changed on paper, from geometric patterns to numbers. Although it did not have many practical uses, it did promote the development of mathematics.

    Now that Yunyao has come up with geometry, many craftsmen have benefited a lot.

    Confucius found that Yunyao really knew too many things, but he was not envious of it, because geometry was just a craftsman's knowledge. As a nobleman, he did not have to go to the fields to measure the land or work by himself. He only had to ensure that everyone performed their duties.  Well, Confucius still has great limitations.

    Later, Mencius even said that those who work hard govern others, and those who work hard govern others.  It can be seen that Confucianism never thought about equality. It is no wonder that Buddhism was almost killed during the Sui and Tang Dynasties.

    After Buddhism was introduced to the Central Plains, it became very popular. Especially after the emergence of Zen Buddhism in the Tang Dynasty, the idea that everyone could suddenly become a Buddha was very attractive. Intellectuals in the Tang and Song Dynasties talked about Buddhism and Taoism, challenging the etiquette represented by Confucianism.  Morality.

    Confucius only had a few more years to live, and it was too late to change now. Being able to tolerate Yunyao and not prevent Yunyao from being new and unconventional showed that Confucius was an enlightened old man, and it was not expected that he could make a 180-degree turn in his lifetime. Suddenly,  I became down-to-earth and started to get close to the working people.

    Confucius spent his whole life pursuing the lost aristocratic spirit, and it was impossible for him to wake up before his death.

    The winner was determined. Silly Gu answered the Youshi's question correctly, but they couldn't answer Yunyao's question.  Youshi could only leave Weiguo in despair and never stay in the same country with Yunyao again.

    But this time Yunyao didn¡¯t become famous because Youshi would not help her publicize or help her become famous.  All the scholars tacitly forgot the debate that took place in Weiguo and fell into collective silence.

    Yunyao sighed, how can even a time traveler reverse the general trend of history?  As an interest group, youshi will protect themselves spontaneously and will not give others the opportunity to snatch their interests.

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