Hearing Songhe say this loudly, Yunyang was slightly startled. "I didn't expect that I would be lucky enough to witness the first confrontation between the geocentric theory and the heliocentric theory on this earth It's interesting, interesting. But what's the use of this? I have to run away quickly, in case I am attacked by Hong Dou, a female tyrannosaurus. It would be bad if it was blocked" "Songhe, Songhe!" Yunyang continued to shout in a low voice. Because he was afraid of affecting the other students, Yunyang did not shout loudly. At this moment, Songhe seemed not to listen. When he arrived, Boss Yunyang hesitated. At this moment, the old man was answering another student's question. The sun is on one side and the other stars are on the other side. Although this universe model can explain most of the phenomena observed on the earth, such as moon phase changes, lunar eclipses and other things, it also has many loopholes, such as the simplest A question, since the sun is not on the same side as the other stars, how is a solar eclipse formed? That student asked this question. Because on the earth at this moment, powerful people in the extraordinary realm have witnessed with their own eyes that the solar eclipse occurs because the moon blocks the sun's light. The old man was obviously prepared for this, so he replied confidently: "Everyone knows that a solar eclipse occurs because the moon blocks the sun's light But since the moon is on the other side of the ancestral star, how can the moon block the sun star? What about the light? This is because the movement of the stars is not very stable. Occasionally, the moon will move from one side of the ancestral star to the other, but this does not affect the overall situation. After all, most of the moon is an accident. Time is spent on the other side of the ancestral star." At this moment, Songhe stood up and said those words loudly. For a moment, everyone turned their attention. "Is Songhe crazy? The sun rises in the east and sets in the west. It rises from the east in the morning and sets from the west at night. It is obvious that the sun is orbiting the ancestral star" "Yes, the same is true for the moon, and the same is true for other stars. They all rise from the east and set from the west" At this moment, Yunyang heard a lot of discussion. The old man frowned and scolded: "Where did you hear these fallacies?" "This, this is not a fallacy!" Songhe is an honest man, and he has probably never experienced such a scene where everyone is looking at him. For a moment, His face turned red, but his mouth became more clumsy: "I followed Uncle Zhang and Uncle Yun to land on Chang Geng Star. When I returned to the Ancestral Star from Chang Geng Star, Uncle Yun said that both Ancestral Star and Chang Geng were on the planet. They revolve around the sun star and move at different speeds, so the distance between the ancestral star and Chang Geng also changes all the time. We go directly from the ancestral star to Chang Geng, but when we return to the ancestral star from Chang Geng, we fly to the sun first. Star, and then returned to the ancestral star. If Chang Geng Star is orbiting the ancestral star, then the distance between Chang Geng Star and the ancestral star should not change! "The stars are too huge, and the universe is too vast. I am studying astronomy. When the time comes, what you see with the naked eye is usually an illusion. Even if a person comes to space, he will probably not be able to discover the truth about the movement of stars due to various factors. Although Songhe had landed on Venus, if Yunyang hadn't woken him up, Songhe would still have felt that Chang Geng was orbiting the earth and would not have noticed anything wrong. The old man smiled faintly: "Uncle Yun? Are you talking about Yunyang? If I remember correctly, Yunyang himself cannot cultivate, and his conduct is not upright. He ran to Chang Gengxing because he escaped from marriage He Can you believe what I said?" Yunyang's expression gradually became helpless. Yunyang didn't expect this. He gave a good lecture, but in the end it involved him. There was another burst of whispers in the classroom: "Senior Yunsong is the great hero of our Shenghua City. We should tolerate Yunyang's nonsense, but it's just an extra mouth to eat. Who in Shenghua City doesn't know this truth? ? Who would take Yunyang seriously? It's ridiculous that Songhe actually believed Yunyang's words today. I really don't understand how Mr. San would accept him as his disciple" "Perhaps Yunyang has come up with something else. Songhe is an honest man, so he might be obsessed with Yunyang" The discussion became louder and louder, and finally turned into a buzzing mass. Yunyang's face became increasingly gloomy. "This is a sacred classroom, don't come here with your crazy words! Sit down!" The old man scolded Songhe with a heavy face. "But" Songhe's face turned redder and redder, "It was precisely because of Uncle Yun's guidance that we successfully returned to the ancestral star. If Uncle Yun hadn't been here, we would have died in the starry sky " "Sit down!" the old man scolded again. "SongheSonghe!" Although he felt unhappy, Yunyang still didn't show up.?Plan to argue with the old man. After all, this is a world with very backward astronomical knowledge, and there is really no point in having such a debate. What Yunyang was thinking at this moment was to escape from the Qiankun Martial Arts Academy as soon as possible and find a place to hide in Shenghua City. This call finally caught Songhe's attention. Songhe turned around and saw Yunyang, and was immediately surprised: "Professor Chen! Uncle Yun is outside, so I asked Uncle Yun to come and debate with you." Yunyang's heart sank and he glared at Songhe angrily. But the old man had already come out, stood at the door, and said to Yunyang with a smile on his face: "It turns out to be Mr. Wu. Mr. Wu is so free today that he is interested in coming to my class. As long as Mr. Wu is interested, The old man is very happy to tell Mr. Wu about this astronomy to prevent Mr. Wu from misleading other students with his crazy words in the future. "The contempt in these words is very obvious. Maybe this old man also has a certain status, so he is not afraid of Yunyang's chaos. Yunyang gradually became angry, but he still had no intention of arguing with this old man. After all, getting away early is the big deal. Yunyang bent down and said respectfully: "Yunyang understands the old gentleman's teachings and will not talk nonsense again in the future. I have something urgent to do with Songhe. I wonder if the old gentleman can agree to let Songhe come out. "Take me to do something?" The old man shook his head and said, "Mr. Wu, I'm very sorry. Songhe believed your crazy words and actually refused to believe the astronomical theory that I and the professors worked hard to study." This kid He has a great future, and he may achieve extraordinary achievements in the future. If I believe your things in my heart, it may be dangerous to explore the stars in the future. As an astronomy professor, I should give Song He a good education. I wonder if Mr. Wu can wait for me and let Songhe take you out after class?" Yunyang's face suddenly darkened, and he couldn't help but curse in his heart: "You old man, you are so shameless!" He turned around again. After taking a look at Song He and finding that Song He was looking at him eagerly, Yunyang sighed in his heart, knowing that things might not go well today. Not to mention the old man's unwillingness to let him go, but because of Songhe's honest temper, if he refused to stand up for him, I'm afraid he would continue to be stubborn here. "Oh? The old man said that my Yunyang stuff is crazy talk. I wonder what evidence you have?" Yunyang turned his head again, and his face returned to a full smile, "You said that the Ancestral Star is the center of all stars. , The sun, moon and stars are all revolving around the ancestral star. I wonder what evidence you have?¡± The old man was startled, as if he did not expect Yunyang to say such words, and his beard curled up in anger. Pointing to the huge sun in the sky: "The sun, moon and stars are my evidence!" "When the old gentleman saw the reflection of the moon in the water, did he think that the moon was under the water?" Yunyang laughed dumbly, "Old man Sir, although Yunyang is not as old as you, he also knows that seeing may not necessarily be true, especially in this astronomical field, most of what you see with your eyes is deceptive. How do you know what you know? What you see is not the moon in the mirror, but an illusion that deceives your eyes. " "You, you" The old man seemed to be shaking with anger, and Yunyang couldn't help but worry that he would have a heart attack at the next moment. hair. But Yunyang still wasn't ready to back down. Now that I have been forced to this point, why should I be afraid of having a debate? What he saw and heard when he landed on Venus and subsequently returned to Earth has proved that the starry sky in this world is still the same as that in his original world. In this case, how can Yunyang, as an astronomer, be afraid of someone who still adheres to the geocentric theory? The so-called astronomy professor? "Do you dare to debate with me in front of so many students?" The old man said angrily, "If you lose the debate, you will not be allowed to spread your fallacies in the future, so as not to poison this college. Student! Mr. Wu, do you dare to promise me?" "That's exactly what I mean." Yunyang said with a smile, "There is a saying that the truth becomes clearer with more arguments. It doesn't matter whether you are right or I am right. , It doesn¡¯t matter what I said, let¡¯s talk about it with your arguments. But what if you lose, old man?¡± ¡°Huh,¡± the old man looked at Yunyang with disdain, ¡°What if I lose?¡± If you lose, I will accept you as my teacher!" "It is a good thing to say that you can still study diligently at a young age." Yunyang said with a smile, "Okay, then in front of these many students. Let¡¯s argue and see who is right.¡± The two of them walked into the classroom one after another, and Yunyang glared at Songhe with dissatisfaction. Songhe seemed to be very excited, and didn't care at all that the other students looked at him as if they were crazy. "This Yunyang usually behaves mischievously, but now he came to this classroom to do mischief, and made Professor Chen so angry that he looked like this" "Shh, keep your voice down, don't let Yunyang hear you"