Chapter 839 A Bold Idea (3 in 1)

"Son of God, why does it get warmer when you go south?"

Wu looked at Han Cheng and asked aloud, his eyes were full of puzzlement.

Wu Ke has kept this doubt for a long time, but seeing that the son of God has been talking happily there, he didn't say anything, and waited for now.

After Wu Wen said such words, the elder brother and the others were also taken aback for a moment, and immediately came to their senses.

Yeah, why does it get warmer when you go south?

Shouldn't the south side be about the same as here in our own tribe?

Especially Mao, he was even more puzzled by this. He took the people of the trade team, but he often went south.

Moreover, the original Huangguo tribe was in the south of the tribe, but in the spring of that year, I, Shang and others, with the people from the Huangguo tribe, almost couldn't come back.

It's not warm at all over there.

After hearing Wu's question, Han Cheng couldn't help but froze.

As a person living in the northern hemisphere, the warmer you go to the south, isn't it common sense?

In later generations, children will know things.

After being so dazed, Han Cheng laughed.

Subconsciously, I look at things according to the deep-rooted thinking of later generations.

However, this kind of thing may be able to make some people speechless. They know that this is a common-sense question, but they just can't tell why.

For Han Cheng, who was born in a serious liberal arts class, there was no problem.

After all, back then, among the three sub-subjects of liberal arts, geography was the best he studied.

What longitude, latitude, morning and evening line, perihelion, aphelion, tropic, heat rise, cold fall... these are simply not too random.

Han Cheng whispered softly and shook his neck, thinking it was time to start his own performance.

"The south is hotter than here because the south is closer to the sun.

The sun is a big ball of fire,

Just like we warm up the fire, if you are far away from the fire, your body will be cold, and if you are close to the fire, you will become warm..."

"Then why is the south side closer to the sun?"

The stone who didn't know when came over, blinked his eyes and asked aloud, took over from Wu, and turned into a hundred thousand whys.

When he was not an adult, he was coaxed and fooled by Han Chenglian to produce the stone of the flying dream. He was very interested in this aspect.

Hearing what Han Cheng said now, he was immediately attracted.

"This is because the earth we live in is a sphere, and the south is the middle of the sphere, which protrudes a lot, so going up there is closer to the sun."

After saying this, seeing Wu and the others didn't quite understand, they thought for a while and found a relatively large, round fruit and put it on the ground, inserted a small stick not far away, and found a thin one. The rope was tied to the wooden stick, and then Kai pulled the rope with his hands and began to measure the round fruit.

The first thing to measure is the middlemost position of the fruit. After the measurement, make the next mark on the rope.

Then compare the top of the fruit.

Everyone was surprised to find that a rope of the same length could touch the middle of the fruit, but not the top of the fruit. To reach the top of the fruit, a longer rope was needed.

"For example, the place where the stick is inserted is the sun, and this fruit is the earth we live in. Is it the middle part of the fruit, the closest to the sun?"

At this time, Han Cheng had completely transformed into a high school geography teacher, but when his geography teacher was teaching this, he didn't use the fruit, but the back of the head of the guy with the short cut in the front row.

Although the tools are simple, or make do with them, the effect is still relatively good. Under such an intuitive observation, the people in the tribe, like Han Cheng at the beginning, immediately understood the distance between the middle of the ball and the place similar to the equator. The closest truth to the sun.

"As for you who have been to the south, you feel that the south is the same as where we live, and it is not warmer than our tribe. That's because you haven't gone south enough, and it's too close to our tribe.

Walk a little farther to the south, and it will get warmer.

You can ask the old primitive people about this, they once lived in the north because of the persecution of the Tengshe tribe, and then they were frozen back by the cold over there..."

Han Cheng continued to explain, and cited the Feng tribe and Linfeng tribe that had migrated to the north and returned after being frozen.

This problem is understood, but a new problem has emerged.

"Son of God, this... How is this place a ball? Isn't it flat?"

It was still the stone that opened the mouth.

After saying this, the rest of the people looked at their son of God in confusion or surprise.

For them, this is even more incomprehensible than the fact that the south is warmer than the north.

You know, they have been living on the earth since they were born.

On this ground, there are mountains, ravines, rivers, and flat lands... How could it be round?

Fortunately, what Han Cheng is facing at this time is these primitive people who are ignorant and whose field of thought is like a blank sheet of paper. If he is facing those extremely stubborn and self-righteous cynics, he will definitely be sprayed into a sieve !

In an era when there is no full picture of the earth, it is very difficult for this person in the tribe to accept the view that the land under his feet is round, because it is so different from what everyone usually sees .

However, such things are not difficult for Han Cheng, who made him a person with a liberal arts background.

Moreover, I was influenced by the geography teacher at that time, especially the kind who would draw materials from anywhere and explain the model.

Seeing everyone's doubts, Han Cheng did not speak in a hurry, but calmly found a model of the earth.

That's right, it's the fruit just now.

"Look carefully at the surface of this fruit."

Han Cheng held the fruit in his hand and showed it to everyone in the tribe.

People in the tribe of this fruit are familiar, every one of them has eaten it before, and there is nothing to look at.

But despite this, everyone still observed carefully according to Han Cheng's request.

"Did you find anything?"

After a while, Han Cheng looked at the crowd and asked with a smile.

Everyone scratched their heads in doubt, and then continued to stare at the fruit, but also did not see a single flower.

Wu and Shishi also found nothing.

"Is the surface of this round fruit uneven?"

Han Cheng smiled and said to everyone.

After being reminded by Han Cheng, everyone immediately realized that this was indeed the case.

It's just that after a sudden, they became confused again, because they didn't understand what it had to do with the question they asked the Son of God.

"If this fruit is enlarged vigorously, will these small protrusions on the surface of the fruit become like these peaks and hills? Are the textures on the surface of the fruit the same as the gullies we see? ?

The earth we live on is just like the fruit in my hand. Although the surface is uneven, it is still a ball. "

Han Cheng smiled and said to everyone in the tribe.

Some people didn't react for a while, but some people understood something.

The stone moved his eyes away from the round fruit in Han Cheng's hand, and landed on the hill behind the courtyard. At the same time, the one he had seen before, which was much bigger and higher than the hill, appeared in his mind. Mountain.

After looking at it for a while, he turned his gaze back to the distant fruit held in Han Cheng's hand. Looking at the small bumps and shallow grooves on the surface of the fruit, his expression gradually became extremely shocked.

Such a tall mountain peak is like these small protrusions on this fruit on the earth, so how big is the earth that the Son of God said!

Seeing Shi Shi's expression, Han Cheng smiled. He knew that this smart guy understood what he said.

"The reason why we feel that the land we live on is flat is because the earth we live on is really too big, and there are high mountains and rivers on the surface to block each other. We usually don't realize such a small gap. not come out.

But when you get to a place where the field of vision is wide enough and the ground is flat enough, you can realize that the earth is round.

At that time, when we saw a tree growing in the distance, the first thing we saw was the top of the tree, and the last thing we saw was the bottom of the tree..."

Han Cheng smiled and continued to popularize science with these people in the tribe.

In the past, Han Cheng had a plan. When people in the tribe asked how the mountains and rivers came from, they would bring up the legend of the great god Pangu who opened up the world.

When asked about the shape of the earth, explain it in terms of the round sky.

Because if it is explained in this way, it is very similar to what everyone usually sees, which can make people understand better.

But today, his thoughts have changed all of a sudden.

Because he realized that if he really did this, the future descendants of the Qingque tribe would not know how many detours they would take.

I don't know how many years it will take to know that the sky is endless and the earth we live on is round.

Compared with such things, the difficulty of understanding at this time is not difficult at all.

And when talking like this, Han Cheng also had a bold idea.

After he released the fact that the land he lives in is a huge sphere, later on, among the descendants of the Qingque Tribe, will anyone raise the idea that the world is so big that I want to see it?

Then he took the fleet on a long voyage, started the feat of sailing around the world, and made great geographical discoveries along the way.

Then began the era when the descendants of the Qingque tribe spread all over the world, and brought back all the peppers, sweet potatoes, corn, potatoes, etc. from the Americas, and made Mandarin the only official language by the way...

This thing, just thinking about it, makes people feel very exciting.

"Actually, the earth is not just a sphere, it is always rotating."

Han Cheng's speech was so popular today that he didn't even peel the rabbits. Together with Wu and the others, they came to the big green brick house and told everyone more about astronomy and geography.

Because the inside of this room is much warmer than the outside.

At this time, more people came to listen to Han Cheng's talk.

After thinking about it, Han Cheng asked all the interested people in the tribe to come and listen to the lecture.

It's also time to give everyone in the tribe a good science on these aspects of knowledge.

Knowing these aspects of knowledge can greatly broaden the vision of everyone in the tribe, and will subtly make people's pattern bigger.

After a certain level of development, it will not be arrogant to think that it occupies the center of the whole world, and start to be complacent.

After everyone came here, Han Chengcheng began to tell everyone in the tribe about the rotation of the earth.

After such words were spoken, the people in the tribe were even more surprised.

For them, this is even more incomprehensible than the earth of life is a sphere.

The earth is always spinning, and I and others have never felt it!

I remember when I was not grown up, I would turn around for a while, and my head would get dizzy.

The earth in my life is always turning in circles, so why don't I feel dizzy?

"This is because the earth only rotates once a day, and it rotates very slowly, so you don't feel dizzy. If you don't believe me, you can slowly rotate once on the ground and try to see if you still feel dizzy?"

Han Cheng smiled and said to those people in the tribe who were curious about his head not getting dizzy.

"Why is there day and night? Why does the sun rise in the east and set in the west?"

After a few people turned around slowly according to what Han Cheng said just now, and found that their heads were not dizzy at all, Han Cheng smiled at the crowd and threw out this seemingly simple but enough to make them lose their hair. question.

Sure enough, as Han Cheng expected, after these two questions were asked, everyone in the tribe was immediately blinded.

Why are there day and night? Why does the sun rise in the east and set in the west?

this……

These things have been like this since they started to understand!

That's how they exist, why not!

Everyone scratched their heads, even Wu, Yuan and Shitou, who thought they were smart, were left speechless by this seemingly ordinary question.

Han Cheng couldn't help smiling when he saw this.

These two very common problems at first glance were actually unsolvable problems before the development of modern science.

The ancient ancestors, faced with such unexplainable problems, began to give full play to their own thinking, so myths and stories representing mysterious powers such as the Golden Crow and Xi He driving the sun chariot appeared.

"It's because the earth is spinning."

After waiting for a while, Han Cheng began to explain the reason to everyone.

After Han Cheng gave this answer, all the people in the tribe were puzzled. They really couldn't understand the connection between the rotation of the earth and day and night, and the sun rising in the east and setting in the west.

Knowing that everyone was puzzled, Han Cheng smiled and said, "You will understand what's going on after I demonstrate it."

As he spoke, he ordered people to close all the doors and windows of the big tiled house with green bricks, and put down the animal skin curtains that were not very transparent. The whole big tiled house with blue bricks was immediately plunged into darkness.

When everyone was curious, there was a fire in front of them. It was Han Cheng who blew on the fire and lit the oil lamp.

After doing this, Han Cheng used his nails to make a mark on the fruit.

Then take the fruit in your hand again.

But this time is different from before, instead of holding it with your hands, you pinch the two ends of the fruit with your thumb and index finger, tilting it slightly, like a simple globe.

Then transfer the oil lamp to the front of the body.

"This oil lamp is now equivalent to the sun hanging in the sky, and this fruit in my hand is equivalent to the earth we live on.

On the fruit, the imprint I made with my fingernails is equivalent to the location of our tribe on the earth. "

After Han Cheng finished this, he looked at the people in the tribe and said.

In the entire blue brick and tile house, only Han Cheng's voice sounded.

The rest of the people were all absorbed by the two questions Han Cheng raised before and what he was doing now.

They all listened and watched attentively.

I want to understand from the Son of God why there is day and night, and why the sun rises in the east and sets in the west.

Han Cheng glanced at the crowd and was very satisfied to see that they were all very serious.

Dang even continued: "Look, the fruit in my hand is only illuminated on the side facing the light, and the other side is not illuminated by the light.

The side that is illuminated is daytime, and the side that is not illuminated is night. "

Everyone thought about the scene where there was sunshine during the day but no sunshine at night, and compared with what Han Cheng said and did now, it was easy to understand the difference between day and night.

"Look out, everyone. Now the earth is turning. At this moment, the point representing our Qingque tribe is being illuminated by light, so it is daytime..."

Han Cheng said, and began to slowly turn the fruit in his hand with the other hand, from west to east.

As Han Cheng turned, the imprint representing the position of the Qingque tribe that was originally illuminated by the light slowly shifted to a place where the light could not reach.

"Look, now the light is gone, and darkness has come."

Han Cheng said this, paused for a while, and waited until everyone saw clearly before continuing to turn the fruit in his hand.

Still turn from west to east.

After a while, the imprint on the fruit reappeared from the darkness and returned to the light, illuminated by the light.

"Now, the earth has turned around, and the sky is bright again."

Han Cheng stopped his movements again, looked at the people in the tribe, and said with a smile.

Everyone looked at the illuminated fruit in Han Cheng's hand without blinking, and recalled the magical scene that Shenzi showed them to them through this fruit just now.

Someone showed a look of surprise and thought, as if something incomparably mysterious slowly opened in front of his eyes, and the whole world suddenly opened up.

Some people looked at these, full of curiosity, and felt that this had never been seen before, and the words were very novel.

There are also some people who are scratching their heads with their hands.

These things in front of them were clearly explained by the Son of God, and they all looked at it, but they just couldn't understand what it meant.

Why does the earth rotate, why does the day turn into night, why do the little dots on the fruit become their own tribe?

But although I can't understand it, it still looks very profound and very reasonable.

Everyone reacted to Han Cheng's attention, as did those who scratched their heads.

But Han Cheng didn't feel any frustration because of this.

It is not necessary for everyone to understand this matter, only some people need to know it.

Moreover, this is only the first time he has talked about these things in the tribe, and it is reasonable for many people in the tribe to find it difficult to understand.

Because even in later generations, many liberal arts students still have a headache for geography, especially when it comes to morning and evening lines, calculating longitude and latitude, etc., they can't wait to bald their heads.

At this time, some people don't understand, it is really normal.

What's more, Han Cheng was very pleasantly surprised when he saw the few people who were suddenly or enlightened.

I have discovered some talents in the tribe again!

After Han Cheng paused for a while, he continued to repeat the action just now, and tried his best to explain the relationship between the earth's rotation and day and night more clearly, so that more people could understand.

After a while, Han Cheng began to ask: "Many people have already understood how day and night come into being. Now I want to ask, does anyone know why the sun rises from the east and sets from the west?" ?”

After he finished speaking, he looked at the crowd, and they all stared wide-eyed, unable to understand what was going on.

Shi Shi and other people who have figured out what is going on with day and night have some vague ideas, but they just can't grasp them.

Seeing this, Han Cheng was not in a hurry, but said: "Let's take a closer look at the movement of the earth."

As he spoke, he continued to slowly turn the tilted fruit with his hands.

As he turned, on the fruit, the imprint representing the Qingque tribe was illuminated by lights for a while, and then hidden in darkness for a while.

"Son of God! I know!"

Looking intently at Han Cheng's moving stone, his eyes became brighter and brighter. After a while, he finally shouted in surprise and raised his right hand high at the same time.

"Then tell me why."

Han Cheng stopped what he was doing, looked at Shi Shi and said with a smile.

"It's because the earth rotates from west to east!"

After receiving Han Cheng's permission, Shi Shi stood up from his seat and spoke excitedly, especially like the minors he taught before.

Han Cheng cast an approving look at Shishi, and Shishi's words hit the point.

"Let's talk about it again, and see if we can talk about it in more detail."

After Han Cheng approved Shi Shi's answer just now, he looked at him and said encouragingly.

"this……"

Stone didn't know what to say for a while.

At the right time, Han Cheng turned the fruit that served as a globe in his hand.

"Yes, it's because when turning from west to east, the easternmost side of a place is first illuminated by the sun, and when the sun disappears last, it disappears from the west side of that place..."

After Shitou thought for a while, he spoke again, with some doubts.

"sharp!"

After Shitou said these words, Han Cheng put the fruit in his hand on the table, gave Shishi two thumbs up, and expressed his highest appreciation for Shitou's words.

Even though Han Cheng made a reminder, Shi Shi could still be worthy of Han Cheng's praise for being able to say such a thing!

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