The Lunatic Cult Master is a lonely man, because no one understands him at all because of what he thinks and does.

Even if he knew that the earth was actually a huge sphere, and the sun and moon were also spheres, no one could believe him, and no one could break the worldview of the round sky and the earth that had been passed down by people for hundreds of millions of years to believe him.

The Lunatic Sect Master originally thought that he was lonely, the only person in heaven and earth who knew the truth of this heaven and earth, but he didn't expect that he suddenly found that there were other people who proposed this concept.

Although Wu Yan brought it up in a joking tone, it attracted the attention of the Moon Worship Sect Master.

Therefore, the Lunatic Cult Master asked his own question to test him, just to test how much he knew.

If the earth where all living beings live is a sphere, is it true that only the people at the top are alive, and no one is alive on either side or below?

Of course, the Moon Worship Sect Master knew the answer, after all, he had walked around the earth, and this question was just to test Wu Yan.

"No, although the world we live in is a sphere, there are people in every corner."

This is Wu Yan's answer, and he answered without thinking about it, obviously he already knew the answer, but this answer is right.

"Since we all live on a huge sphere, why don't the people next to us and below fall down?"

Without waiting for the Moon Worship Sect Master to speak, Li Xiaoyao next to him couldn't help but speak, asking a question that everyone was curious about.

"What is up and what is down? For us, the upper is the upper and the lower is the lower, but for the people who live on the other side of our sphere, our upper is actually their lower being, and the so-called gravity is actually the ...... given to us by the earth in which we live."

Wu Yan simply drew a circle on the ground and answered this question in a patterned way.

"Gravity? This huge sphere is the source of gravity", hearing Wu Yan's explanation, the Moon Worship Sect Master had a feeling of sudden enlightenment.

In fact, he only knew about the existence of the earth, but he didn't know why people living in all parts of this sphere wouldn't fall.

Now, Wu Yan's answer made the Moon Worship Sect Master feel suddenly enlightened.

In this way, the problem can be perfectly explained, indeed, the direction of gravity falling is towards the earth, not simply towards a certain direction.

"Impossible, I still find it unbelievable, although this statement feels novel, it is still a little too ridiculous", Liu Jinyuan next to him shook his head and put forward his own ideas.

Yes, it is not so easy to break the worldview that has been imprinted in the bones of human beings for thousands of years, so as to accept the truth that the earth is actually a sphere.

Liu Jinyuan's words made Li Xiaoyao and Lin Yueru next to him nod, the concept of time in the round sky has been deeply rooted since childhood, and if they want to break such a worldview to accept the concept of the earth, they will not believe it just by relying on Wu Yan's mouth for a while.

Regarding Liu Jinyuan's reaction, Wu Yan smiled slightly and did not say much.

When they say it casually, they listen to it casually, and whether they believe it or not is not something they can control.

"Wu Gongzi, since this earth is a huge sphere, what about the sun and the moon?" However, at this time, Shi Jieren next to him continued to speak again, and asked Wu Yan curiously.

Wu Yan looked at him a little strangely, did he really believe it? Or do you simply find the topic interesting?

Hesitated slightly, Wu Yan didn't mean to hide it, since someone was willing to listen, it was nothing to say more.

Nodding, Wu Yan also told him about the relationship between the sun, the moon and the earth, and even believingly told him about the principle of the appearance of solar and lunar eclipses.

"It turns out that the principle of the Tengu Eclipse Sun and the Tengu Eclipse Moon is like this, I understand ......."

Wu Yan's words made Shi Jieren's eyes brighten, and he had a feeling of sudden enlightenment for his words.

For Shi Jieren, Wu Yan is no longer a simple fellow traveler, and even, as he asks questions one by one, Wu Yan can answer them perfectly, and in Shi Jieren's heart, Wu Yan's existence has completely become the role of a pioneer.

Liu Jinyuan and the three people next to him were originally just listening to Wu Yan's words as an interesting topic, but with Shi Jieren's questions one by one, Wu Yan was able to give at least theoretical explanations, which made Liu Jinyuan and the three of them dumbfounded, and their worldview had a feeling of collapse.

"Could it be that Wu Yan's words are all true?" , As Wu Yan's answers came out one by one, all of them could be established theoretically, and Liu Jinyuan and several people suddenly had such an idea in their minds.

Thinking about it carefully, I was so frightened that I even had a feeling that I didn't dare to listen to Wu Yan anymore.

However, these things seemed to open a new door to them, so that they did not dare to listen, but they refused to leave, but quietly pricked up their ears and listened with relish.

"By the way, Mr. Wu, you said that the moon is actually revolving around our earth, and one rotation is a month, so the moon is cloudy and sunny within a month, and the earth is revolving around the sun? That's why the seasons change? ”。

When Wu Yan put forward the knowledge of the movement of the moon, the sun and the earth, Shi Jieren looked at Wu Yan with wide eyes, and was shocked, and the title of Wu Yan had become the honorific title of "Mr. Wu".

"Yes, that's true......," Wu Yan nodded and replied.

So, what color is the sun's rays? Because the sun is usually red in the morning, but turns golden at noon, why does this change in sunlight? Immediately, Shi Jieren continued to ask.

In his heart, about the mystery of the operation of the heaven and earth, it seems that as long as he raises it, Wu Yan can get a perfect answer, which makes all the doubts in Shi Jie's heart thrown out in one go.

"The sunlight is actually white, and as for the time of day, the light seen is different, and that is because of the refraction of light."

"Do you understand refraction? It's like if you put a bowl of water in a bowl and the chopsticks are inserted diagonally, it looks as if the chopsticks are broken at an angle in the water, which is refraction, and our earth is wrapped in an atmospheric layer ......".

At this time, Wu Yan seemed to be incarnated as a teacher of natural science, and the Moon Worship Sect Master was incarnated as a good student who was curious to listen to the class.