Xia Yuanqiu answered: "You mean, a solar eclipse occurs every seven years?"
Wen Cheng nodded: "It seems so at present, and it will be on a certain day in midsummer, maybe July, maybe August, in these two months."
Xia Yuanqiu also said: "As far as I know, solar eclipses mostly occur on the first day of the lunar month, which is the first day of the lunar calendar. Today is July 28th, which means that in two days, we may be able to see a solar eclipse!"
Wen Cheng asked doubtfully: "How do you know that the solar eclipse will occur on New Year's Day? Couldn't it be on other days?"
Xia Yuanqiu secretly scolded himself for being quick to talk, and said with a smile: "It's not that it can't be on other days, but most of them are on this day."
"Most? How many solar eclipses have you seen?" Wencheng continued to post.
Xia Yuanqiu secretly wiped his sweat: "It's not that I have seen it, but my predecessors have seen it. They wrote down the days when the solar eclipse occurred, made a calculation, and found that the probability of a solar eclipse on the new moon is much greater than other times. son."
Wen Cheng asked again: "Who is this predecessor you are talking about? Does he know what a solar eclipse is? How is a solar eclipse formed and why does it happen?"
Xia Yuanqiu naturally knows how a solar eclipse occurs and why it occurs. It can be said that everyone in the 21st century knows it. But how can she explain it to Wen Cheng
She thought for a while and simply told him clearly. If an astronomy fanatic like Wen Cheng didn't explain clearly, he would definitely go crazy.
"That's right. I'm not sure who that predecessor is. You know, some people don't like to be famous and don't want people to know their existence. He did mention how a solar eclipse is formed. If you If you want to know, I can tell you in detail!”
Wen Cheng nodded quickly: "Of course I want to know, just tell me!"
Xia Yuanqiu pointed to the sun in the sky and said: "If you measure stars and observe phenomena, you should also know that the sun is actually a sphere, a very big sphere that emits light and heats. And where we are is the earth, and we rely on the sun." This big ball survives by the sunlight sent from it. In the vast starry sky of the universe, there are many such spheres, called planets, the earth, the sun, and the moon, which are just one of them. Like the sun and the moon, the earth It is also constantly rotating and running, according to the predetermined time and space orbit, constantly rotating and running without stopping for a moment. The formation of a solar eclipse is when the moon, the sun and the earth happen to move in a straight line. , the moon will block the light from the sun to the earth, and the black shadow behind the moon will just fall on our earth, forming a scene of no light in the day and no sky, but this is only a short moment, because the three The planet is still moving continuously, and the formation of a straight line is only a temporary stop, and the light will be restored soon."
Wen Cheng was startled when he heard this. This was the first time he had heard such a bold idea since he entered the industry.
Wen Cheng asked: "These assumptions of yours are really shocking!"
Xia Yuanqiu shook his head: "What I'm talking about is not an assumption, but a fact. Real facts, real facts. There is absolutely no lie."
Wen Cheng was surprised: "So you mean, all of us actually live on a big ball?"
Xia Yuanqiu nodded: "Yes, it's just a ball. You stand here and look at the distant stars in the sky. Have you ever thought about it? In fact, there are people or some kind of creatures on other planets who also look at the stars in the same way. You? In your eyes, is that distant star a ball?"