The Prodigal Son of the Empire

"What does this mean?"

"The description is a curved surface, not flat."

"This?" Zhang Xianxian frowned slightly, thinking carefully, it seemed to be true.

And Wang Kang said: "There is another simplest method, assuming the ground is flat, then no matter how high the altitude is, you can see the same distance."

"Oh, altitude is the vertical distance above sea level at a point on the ground."

Zhang Xianxian couldn't help but follow what Wang Kang said.

"But in fact, it is difficult for you to see. No matter how good your eyesight is, there will be a limit. This is because of the curvature of the spherical surface itself, which limits our sight!"

"Unless you climb up a tree, or climb up a mountain, and look down from a high place, this is also the origin of climbing high and looking far."

Seeing that Zhang Xianxian didn't speak, Wang Kang smiled and said, "Others can't understand what I said for a while, but you should be able to?"

"If you don't understand, let me say it for nothing."

"Is there only these two points of evidence?" Zhang Xianxian asked after thinking for a moment.

"Of course there are, but you can't understand those!"

"You..." Zhang Xianxian's expression was unnatural, because he had never heard of the words Wang Kang introduced just now.

Although I don't understand it, I don't know it.

After thinking about it, it does make some sense. Isn't this overturning her cognition?

Impossible, absolutely impossible!

She didn't just stick to her theory, there is nothing absolute in the world.

She didn't believe it, it was said from Wang Kang's mouth.

"But what does this have to do with the apple falling to the ground?"

Zhang Xianxian decided not to continue talking about this, otherwise she might be embarrassed.

It was because of her that she could barely keep up with Wang Kang's train of thought.

"Of course it does!"

Wang Kang smiled and said: "Didn't you say that if the ground is not square and still, then we will not stand firm."

"The reason for this is gravitation, just like an apple falling to the ground, because the earth we live on has a gravitational force on the apple, which is the gravitational force of the earth!"

"It attracts the apple. When the apple is ripe, it will separate from the branch. The gravity of the earth will attract it to the ground, and the apple will fall to the ground!"

After saying that, Wang Kang looked at her and asked, "Miss Zhang, do you understand?"

[Author's digression]: The second update, everyone votes, thank you!

Chapter 253 I'll Tell My Dad

Does Miss Zhang understand?

This is it again!This is it again!

Zhang Xianxian was really aggrieved to the extreme. If she remembered correctly, this was the third time Wang Kang asked this sentence.

Usually she asked others this question, but now she turned around.

How does this make her not angry.

Even so, her long-term habit made her think along what Wang Kang said.

Gravity, no doubt, was the first she had heard of it.

A whole new concept, a whole new vocabulary.

He also denied the theory of the round sky and the earth, which is the vast majority of cognition.

The sky is round, the earth is round, the earth?

Is this what he calls the place he lives in a broad sense?

Every object attracts other objects, and the magnitude of this gravitational force is only related to the mass of the object and the distance of the object!

This kind of statement is really too novel.

The apple falls to the ground because of the gravitational force of the earth, so that the apple is attracted by this force, leaves the branch and falls directly to the ground...

If it really exists, then everything can be explained!

Zhang Xianxian frowned beautifully. At that time, this question attracted many talented scholars, celebrities, and scholars to discuss it, but there was no conclusion in the end.

There wasn't even an answer worthy of scrutiny, and it was explained by Wang Kang now.

how can that be?

At this time, Wang Kang said again: "Gravity is a law, it is the basic characteristic of all matter!"

"We can see the beginning of the sun, the sunset, the rise of the moon, and the disappearance of the moon every day. Looking at their orbits, it is obvious that they are rotating."

"It's not just them. We are spheres, and we also have rotation. What force drives the moon to revolve around the earth? The earth revolves around the sun?"

"Is it a god?"

Wang Kang said in a deep voice: "There are no ghosts and gods in this world, so how can I explain it? It's gravity!"

"Materials attract each other, and mutual attraction applies not only between huge celestial bodies, but also between objects of various volumes!"

"Apple falls, raindrops fall...all the same!"

Shock, indescribable shock!

Zhang Xianxian was completely stunned, and Wang Kang's words lingered in her mind, breaking all her original cognition.

She wanted to refute, but didn't know where to start.

And there were some words that she didn't understand.

But she had a feeling that what Wang Kang said was right.

Truth often becomes clearer as it is debated.

Compared with her, what Wang Kang said is indeed more objective and convincing!