Three Kingdoms: My wife invited me out of the mountain to ascend the throne while living in seclusio

"Yes, brother Jiuru, tell us about it."

"Why do you say that the place we are in is a sphere?"

Xu Shu was also very interested, staring at Liu Chuan closely to know why he said so.

In his impression, Brother Jiuru is not someone who talks casually, and since he said so, he felt that there must be a reason.

"It's not that I didn't tell you, but I just said it now, and you wouldn't believe it."

Liu Chuan spread his hands, wishing to give himself a big mouth, tell Zhuge Liang and Xu Shu that the earth is round?
It's like catching a lice and picking it on the head-it's your own fault!
"You have never been out at sea, so I won't be able to tell you for a while."

Liu Chuan waved his hand, too lazy to explain.

"Brother Jiuru, you are looking down on me!"

"To be honest, when I fled a few years ago, although I can't say that I have been to the sea, I have been to the sea."

Xu Shu said very depressed.

"That's right! Brother Jiuru, you look down on us!"

"Liang also saw the sea when he was a child, and there is a sea not far from Liang's ancestral home."

Zhuge Liang also retorted very depressedly on the side.

Said that we have never seen the sea. Being so despised by Brother Jiuru, who do you look down on?
"Ah ha ha"

The corner of Liu Chuan's mouth twitched, and he let out a haha.

There are indeed very few people who have seen the sea in this era, but forget that neither of them is an ordinary person.

Kong Ming's ancestral home is Yinan County, Linyi City, Shandong Province, which is not too far from the Yellow Sea.

And Xu Shu forgot that you were a murderer and a desperado, and it is possible that you were chased and hid, and ran around the sea.

"Then do you think the sea is flat?" Liu Chuan asked calmly.

"The sea is as still as still water. It is naturally flat, otherwise the water will flow."

Zhuge Liang said with certainty.

"Of course! The surface of the sea must be flat." Xu Shu also echoed.

"Then let me tell you, the sea is not flat!"

Liu Chuan shook his head and continued, "I don't know if you have ever seen a ship coming from a distance on the sea. If you have, what was the first thing you saw?"

"Naturally the mast!"

Xu Shu didn't think about it, and said with absolute certainty.

"You're right, it's the mast! And what you see is getting longer and longer."

"It's like a pillar supporting the sky, as if the mast is inserted into the sky, and finally the ship appears."

Liu Chuan nodded, "But if the sea is flat, do you think it will be like this?"

"Absolutely not, but it should be that the ship and the mast appear from far to near at the same time."

"So it can be seen that the sea surface is not flat, but curved."

Liu Chuan said.

"This"

Xu Shu was dumbfounded.

On the other hand, Zhuge Liang also frowned, lost in deep thought.

"Brother Jiuru, if the place we are in is a sphere, wouldn't the world be small?"

"Because people under the ball will definitely fall, that is to say, there are only people above the ball."

"So the world is only a small piece above the sphere?"

After thinking for a while, Zhuge Liang spoke first.

"."

Liu Chuan was almost speechless.

As expected of Zhuge Kongming, his intelligence is beyond comparison to ordinary people!
"Actually not, because there is a force that attracts people to the ground, and this force is called gravity."

"Everything in the world will always fall when thrown into the air, which is caused by gravitational attraction."

Liu Chuan explained.

"gravitational?"

"That's not right, according to what brother Jiu Ru said, the gravitational force of heavy objects must be different."

"Look, a goose's feather can go up in the wind and float into the sky, but a stone can't!"

Xu Shu was on the side and asked rather puzzled.

"Goose feathers and stones receive the same gravitational acceleration, but the obstacles are different."

Liu Chuan's egg hurts, both of them hurt.

Really owe it!

We have nothing to look for, to tell Zhuge Liang and Xu Shu about these things.

What's the matter, the more you say it, the more profound it is, it's really too difficult.

but!

The only thing that made Liu Chuan feel lucky was that although the two had many doubts and questions, they didn't directly jump out and accuse him of being wrong.

In this era, the era of a large number of stubborn intellectuals is extremely rare.

And Zhuge Liang and Xu Shu are obviously the kind of people who are extremely advanced.

of course!

Liu Chuan also understood that Zhuge Liang and Xu Shu didn't directly jump out to question him, but they both trusted him and believed that Liu Chuan would not talk nonsense.

Otherwise, if someone else stood up and said "The World" is a ball, Zhuge Liang and Xu Shu would probably spray it into a ball.

"Okay, it's getting late today, so I won't talk too much!"

Liu Chuan thought about it, and if he continued to explain it like this, it would probably take forever to explain it clearly, so he thought of a way.

"I have a question for you to think about. If I throw two stones from here to the ridge, who will hit the ground first?"

Liu Chuan held a stone in one hand. There were two stones, one big and one small, with a big difference in weight.

"Nature is a big rock."

Zhuge Liang and Xu Shu said with certainty without even thinking about it.

"Okay, let's take a look."

Liu Chuan smiled, and then threw two stones down from a height at the same time.

Ding Dong!

Two stones fell to the ground at the same time!

There was only one sound!

"How could this be?"

Zhuge Liang stretched his neck openly, a little unbelievable.

"Yeah, why is that so?"

Xu Shu was also quite puzzled.

"Because the gravity of the two stones is the same!"

Liu Chuan replied.

Zhuge Liang was a little unbelievable, and then he took two stones and tried again, only to find that the two stones fell to the ground at the same time.

He was dumbfounded!

Xu Shu was also dumbfounded.

"Why does Liang still feel quite puzzled?"

Like a curious baby, Zhuge Liang picked up another stone, then another leaf, and threw it down at the same time.

then!

He saw the stones whizzing down, but the leaves fluttered lightly, and it took a long time before they fell to the ground.

"Questioning is the truth-seeking attitude of science!"

Liu Chuan smiled and said, "Stones and leaves cannot fall to the ground at the same time, because they are affected by the hindering force."

"Because the two stones are quite heavy, and the resistance they are subjected to is negligible, they will fall to the ground at the same time."

After Liu Chuan finished speaking, regardless of whether Zhuge Liang and Xu Shu understood it or not, he quickly flashed away.

I really can't tell these two people anymore!

Our understanding is not at the same level at all, it is really too difficult.

And behind.
"Stones, leaves!"

"How could this be?"

"How could this happen?"

Zhuge Liang and Xu Shu were still in place, one was holding a stone, the other was holding a leaf, and kept throwing them.

They have been completely driven crazy by Liu Chuan!

"Education in Tongque City is imperative!"

Liu Chuan shook his head speechlessly.

"I don't know Mr. Wujiao, how is the science of communication?"

he thought to himself.

Letting Mr. Wujiao spread the teachings is also for the dissemination of scientific knowledge. As long as the scientific knowledge is disseminated in place, it will not be so laborious to popularize science in the future!
Say it again!

If we spread scientific knowledge earlier, we can be at least 1000 years ahead of Western countries. Are you so upset?
Liu Chuan was thinking about this while walking, and he had just arrived home.
Auntie Chan was standing in the yard with a glass of water, thinking about something with a beautiful face.

"Liu Chuan, I happen to need you for something!"

Aunt Chan said hurriedly.

"Let's not talk about things first, Aunt Chan, I want to drink your water!"

Liu Chuan said immediately.

Telling Zhuge Liang and Xu Shu that the earth is a sphere is so dry!
Aunt Cicada: (..)
You kid, do you want to be so direct?