"The sky is round?!" His Majesty was surprised and said, "Is such a simple thing also wrong?" ”

"The sky is round is an intuitive feeling, but also a simple understanding, only the horizontal plane can bear the weight, provide a contact support, we consider from the perspective of inertia, the sky is round is a good explanation, but to solve the intuitive understanding, but also face a lot of things that can not be explained, such as the ground is based on what things, some people say that on a big turtle, the statement is very romantic and exaggerated, but the convincing is not enough. One of the most negative facts is that a ship travels from a very far sea, and the first thing we see is the mast of the ship, followed by the hull. Zhao Qian said lightly.

His Majesty and the Empress nodded, it is true that as Zhao Qian said, it is difficult to stand on the ground where the sky is round, and the fact of the mast has negated the fact that the sky is round and the place is round, but in what way is heaven and earth combined.

Zhao Qian stretched out his hand and picked up an apple and put it on the table, putting it in one place: "The sky is not round, but the earth is round, and people rely on gravity to stand on the ground." ”

Zhao Ting's eyes lit up, grasped the key point, and said: "If what the third brother said is true, then it is confirmed that the ground is round, as long as you stand on a high place, can't you be confirmed by climbing the highest mountain?" But many people have climbed mountains, and there are also masters who can fly in the sky, why can't they feel that the earth is round? Even if the ground under their feet is really round, why can't those who are head-down fall down, and even if they do, where do they fall? ”

"Because they can't climb high enough, they can't fly high enough. An ant lies on top of a watermelon, and as far as the eye can see, the watermelon is flat. But we know that watermelons are round, and the so-called peaks and flights are extremely small for the huge earth. Zhao Gan pinched another grape and put it away from Pinggu, and looked at the stunned people with a smile: "Objects cannot exist purely independently, there is gravity between things, because of gravity, we can stand on the ground, even from a macroscopic perspective, we will not fall head-down." It's ridiculous and funny. In the extremely vast universe, there is no frame of reference, and we can't even define the top and bottom. ”

Zhao Ting was amazed. He liked this kind of knowledge beyond common sense the most, it was amazing, and when he stood up, he touched the apple on the table: "It's amazing." I don't understand it though. But the earth turned out to be round, and no one would believe it. ”

Zhao Qian smiled and knocked on Zhao Ting's head: "Brother, you are mistaken, the apple you are holding is the sun, and the grapes in my hand are the earth under our feet." ”

"Huh?!" The little princess of Yan'er broke free from the queen's arms, and looked at the small grape incredulously, "The earth is so ...... Small? How big is the sun? ”

Judging by direct observation. The sun is just a fireball, much smaller than the earth. That's why there is the legend of the nine-headed golden crow.

The grapes in Zhao Gan's hand successfully attracted everyone's attention: "This is still an exaggeration of the size of the earth, in fact, compared to the sun apple, the earth is just a small sesame seed." We can imagine so much that the earth is on a giant turtle, but in the matter of the sun and the earth, the reason why the sun looks small is because the sun is too far away from us. Suppose we are standing on top of a grape, and this apple is very far away, and the apple we see is small, tiny, smaller than the grapes we see, then it is not difficult to explain why the sun in our eyes is so small. ”

His Majesty tried his best to understand these things, digesting them slowly in his heart, and at the same time asked his own questions: "Even so, the sun is bigger than the earth, even if it is far away, how can the sun rise in the east and set in the west?" ”

Zhao Qian smiled, pinched the grapes in his hand, and turned it: "Father's question is very good, since the sun is so big, the explanation for rising in the east and setting in the west lies in the earth itself, because the round earth is constantly rotating, when one side of the earth is on the stage, it is day, and when it is turned away from the sun, it is night, because of rotation, there is night and day on the earth." ”

While speaking, Zhao Qian pinched the grapes and revolved around the sun, which symbolizes apples, and continued to speak: "The earth is not only rotating, but also revolving around the sun, but this circle around is not a square circle, but an ellipse, so there is spring, summer, autumn and winter, when it is close to the sun, it is summer, when it is round from the sun, it is winter, and when it is not far away, it is spring and autumn, in addition, the earth also has an angle of inclination, and it is precisely because of this oblique angle that there is a distinction between spring and autumn. ”

"Unbelievable, unheard of!" His Majesty the Emperor stood up, his eyes darting back and forth between apples and grapes, the origin of the world was so magical.

"Don't underestimate the heliocentrism, someone gave their lives for this theory!" Zhao Qian opened his mouth and said.

"It is understandable that a set of theories that are not human-centered will certainly not be accepted by people, and the process will be long, and it is not surprising that life is sacrificed." His Majesty the Emperor nodded and spoke.

Perhaps because he didn't feel shocked enough, Zhao Qian picked up oranges and jujubes and put them around the apples, and said: "Around the sun, there are many other planets like the earth, but the difference is that there are no life forms like us humans there. ”

"Say no more!" His Majesty the Emperor stood up, "Keep a little bit of our mystery about the world, Qian'er, if you continue to say this, I don't think the world will be tossed and turned." Let me ask you, Lin Wan'er also knows all this? ”

"Haha, of course Wan'er knows, but she may not be able to tell the order of Jupiter and Mars. She will also be very disdainful to say that these are all elementary school problems, as for making it so serious? Zhao Qian imagined Lin Wan'er's appearance, and laughed unconsciously, "Father, mother, Lin Wan'er is not only her to me, but also my fetters, my motivation, my love, I can die for her, or I can survive for her, without her I am a walking corpse, a puppet clay man, I love her, I really love, chased from another world, just to be able to stay with her and spend the rest of my life together." ”

He stood up suddenly, knelt down with a thud: "So please do it." ”

Roujia wiped the tears from the corners of her eyes with emotion, and Yan'er's eyes were also red.

"Get out! Acid to death! His Majesty opened his mouth to scold, but said in his heart, Damn, why didn't I expect such wonderful words. (To be continued.) )