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Text Chapter 679 Is there anyone up there?

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    An Qingzong was completely beaten to the ground. He only fainted briefly when he lay still. When he stood up, he had to be supported by his companions. Qin Xuan's elbow was very powerful, and An Qingzong  The whole person still looked like he was drunk. Although he was sober, he was still unsteady on his feet. There were a lot of curses in the crowd. Most of these people pushed him to win, but there were only a few cheers in the crowd. It can be seen that  There are not many people who have vision.  This result caused most people to lose all their money, and the biggest winner was the banker. Qin Xuan's odds were high, which meant that his strength was not as good as An Qingzong's. This was considered an upset. The counterattack was successful. He  I am very happy that someone is going to make a lot of pocket money again. This is the case with gambling. Most people lose and a very small number win. My thousand dollars is probably only a fraction.  "Jingyuan, you are really refreshing and impressive. An Qingzong is such a big man and his martial arts is not weak. In your hands, he is like a clown. He can take care of everything in three strikes, five divided by two, without any ability to fight back.  Hehe, with your help, I have won a little bit, so I would like to congratulate you on defeating An Huzi and have a drink," Zhai Tan said happily.  Drinking is not allowed in the military camp, but when Sister Yan arranged the dinner today, she still brought a box of gold liquid wine, including two extra bottles for the officer who was the referee, and four bottles were left here.  I secretly eat braised pork and drink some wine in a corner of the school ground, as long as no one finds me, "You don't listen when I tell you to buy more, don't you believe in my strength? If I am not sure of winning,  "He, I will ask you to buy him, but it is not bad. You have won almost half a year's salary. Compared with those who lost, you are good," Qin Xuan said with a smile.  This Zhai Tan is not yet an official. He is currently equivalent to a small official doing errands in the Taishi Bureau. If his salary for one year is converted into cash, it is estimated to be only 200 guan, but this is enough to support a family of five or six people.  People, the current price of goods is very low, one stone of rice is only about 200 yuan, and a piece of silk is the same price, but the price of meat is slightly higher. In the past two years, people have been encouraged to develop side businesses, but it has not yet reached a certain scale.  The price has not come down.  "He who is content is always happy. If you hadn't participated in the competition, I wouldn't have placed a bet. This kind of gambling is not a good thing. People who like to gamble will lose their money in the end. It is better to be less involved in these things," Zhai Tan said.  "That's right. There is a saying in my hometown: nine times out of ten you bet, you lose. In today's competition, many people will probably not be able to sleep at night, especially some candidates. Some of them probably lost all the money they brought.  You may have to borrow travel expenses to return home," Qin Xuan said with a smile.  "They are all rich people. They don't care about this. Let's not talk about it. The moonlight tonight is good, but it's a pity that it's half a moon, otherwise it would be brighter. Jingyuan knows why the moon is round every fifteenth year. Others  Is it half moon or crescent moon, or is there a moon?" Zhai Tan asked curiously.  "Brother Zhengu, why are you asking me these things? I don't understand your night observation of the sky and the like. I don't know the specific reason," Qin Xuan said with a smile.  It is very troublesome to explain this problem clearly. People on the earth cannot see or feel the moon's revolution. Ordinary people interpret this phenomenon as tengu eating the moon. This is also why people attribute unknown things to  Gods and ghosts, with these ghosts and gods, the rulers can fool the people. For example, the emperor is the son of heaven, and he was sent by heaven to manage this place.  A perfect excuse, and an excuse for not being able to get a glimpse of the truth, so the emperor's edicts all have the words "inherited by heaven" at the beginning. This is the divine right of kings, and no one can violate it. When they overthrew the emperor of the previous dynasty, they  I didn't expect that man was the son of heaven and could not be disobeyed. To be honest, people who wanted to be emperors would not believe this nonsense, but the emperors used this excuse to fool the people at the bottom.  "Jingyuan is hiding his clumsiness again. You can tell that the earth is round. It is impossible not to know the problem of the moon being waning and the moon being full. Zhang Pingzi, Zhang Shangshu of the Eastern Han Dynasty, once mentioned in a book that the stars, moon, and  The sun has a regular pattern, and it is also said that the moon does not shine. It shines because the sun reflects light, and the moon moves around the earth. The so-called tengu moon eclipse in the folk is actually the earth blocking the sun from the moon.  Caused by irradiation, these statements are very secretive and difficult for ordinary people to know, but they just don¡¯t know whether they are true or false. Moreover, he mentioned in "Lingxian": The surface of the universe is infinite, and the end of the universe is infinite. What I told you  The idea that the universe is endless is the same," said Zhai Tan.  "The Eastern Han Dynasty is after Qin, I don't know the person you are talking about," Qin Xuan said.  This theory was first proposed by Zhang Heng, an astronomer in the Eastern Han Dynasty. He served as an official and was appointed as a minister before his death. Unfortunately, he passed away before taking office. He was a famous astronomy, geography, mathematics, literature and inventor in the Eastern Han Dynasty.  The inventor of the seismometer and the armillary sphere, although these are controversial, there is no denying Zhang Heng's contribution to astronomy.  "I think you don't know either, and the term "universe" existed before the Qin Dynasty. I don't know how deep your hometown knows about the universe, so just tell me what you know. Even if you don't know whether it's right or wrong, it can always be used as a reference.  "Yeah," Zhai Tan looked at Qin Xuan eagerly and said.  In ancient times this?The knowledge or books on astronomy and astrology are kept very strictly. Those who have access to these are departments such as the Taishi Bureau. As a member of the Taishi Bureau, Zhai Tan is a former eunuch, so he knows more about this than  Most people are much more likely to do so. The ancients¡¯ research on astronomy was mainly based on naked-eye observation. For example, the rise and fall of the sun and moon could be used to determine the movement of the planet, and the alternation of day and night and the four seasons of the year were related to the movement of the sun and moon. These were all based on the naked eye.  What was observed was a remarkable achievement.  "Actually, these suns, moons and stars all have their own trajectories. I don't know much, but I can tell you a secret. If the clairvoyant in the army can build a bigger one, you can see one.  The moon is different. The moon is the star closest to the earth, and it revolves around the earth, and the earth revolves around the sun. The alternation of day and night is because the earth itself is also rotating. When it is turned away from the sun, it is night.  , and vice versa,¡± Qin Xuan said.  To be honest, in this era of underdeveloped science and technology, if you want to observe space, you can only see through the naked eye with your naked eyes. However, if you use a telescope to modify it, you can at least see it more clearly. At present, it is impossible to create clear optical glass by just making glass.  But this does not prevent clear observation of the moon with a telescope. As long as Zhai Tan is shown a path, he can study it himself.  "You are talking about seeing the moon with a clairvoyant? Yes, I heard that a clairvoyant can see places that are beyond the reach of the naked eye. If you use it to see the moon, you will definitely see it very clearly. This is really a wonderful idea. Why didn't I think of it?  "Zhai Tan said excitedly.  "Don't be so happy yet. If you want to create a clairvoyant that can clearly observe the moon, you need to work hard to grind the lenses. But first, I would like to remind you that after making it, do not use it to see the sun, otherwise it will damage your eyes.  Become blind, remember this," Qin Xuan warned seriously.  "Why is this?" Zhai Tan asked curiously.  "The clairvoyant lens can focus the sun's light into a point, which can ignite firewood. Needless to say, you know what will happen if it hits your eye," Qin Xuan said with a smile.  This is the principle of light energy turning into heat energy in simple focusing optics. How to explain this principle is unclear for a while, but it is no joke that looking at the sun with this telescope will burn your eyes. In his previous life, the Italian astronomer Galileo Galilei was because of this.  In this way, I almost lost my eyes. The lenses for viewing the sun are specially made and need to be equipped with a kind of light-shielding glass.  "It's so powerful. I must try it to see if it can ignite firewood without fire as you said. But the lens you are talking about is made of glass. I still need your help. Ask the workshop to give it to me.  Cast some lenses like this, and of course I will pay you the money," Zhai Tan said with a smile.  "Looking at what you said, these are trivial matters. Don't mention it if you don't have money. However, making clairvoyance lenses requires grinding. This is the main problem, especially if you want to see clearly at long distances.  , the polishing will be more precise, this is very labor-intensive, I will draw you a drawing, and you can find a craftsman to polish it yourself," Qin Xuan said.  Grinding lenses is a time-consuming job. Any craftsman who makes gemstones and jewelry can grind them. You just need to explain the essentials to them. Making an astronomical telescope is not that easy. Qin Xuan does not expect Zhai Tan to be able to make it successfully in one try.  , but with a verified goal, as long as you have perseverance, you will definitely succeed. When there are no spacecrafts, telescopes are the greatest help and the only tool for people to understand space.  The reason why Qin Xuan told him this was because he wanted him to become a real astronomer and use telescopes to verify or unravel some known and unknown things in the sky. If they could use telescopes to see the large and small craters on the moon,  , not only what kind of expression it is, but also whether you can use a telescope to find the location of Chang'e and the sweet-scented osmanthus tree.  People in this era thought that there were gods living in the sky outside the earth. As for whether there were gods in the sky and where they lived, I guess most people thought that there were. Otherwise, these emperors would not have been able to hold the emperor's throne.  The concept of divine right was used to deceive the people. Many emperors thought of being immortal like gods. This was also an idea of ??the existence of gods in the sky.  "Have you seen the moon with clairvoyance in your hometown? Is there anyone on it?" Zhai Tan asked curiously.  (Every click, every red ticket, every collection, every book review, every compliment is support for Machete and the motivation for his writing. If you like "The Rich Man of the Tang Dynasty", come to the website to support it.  Let him, the machete bows and thanks)
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