Han Cheng's affirmation and praise made Shishi's face, which had turned red from excitement, even more ruddy.

At this time, his heart was full of joy, just as many years ago, when Shenzi came to teach them to write and speak Mandarin, he always did it quickly and well, so as to get praise from Shenzi.

Those who were ignorant and seemed to have caught something, but there were people who had not been able to grasp it thoroughly, and after listening to the words of the stone, they carefully recalled the scene when Miko held the fruit and slowly rotated, and what he had been unable to grasp before suddenly became clear.

Yes, because the earth rotates from west to east, in this case, the east is the first to see the sun.

As the earth continues to rotate, in their eyes, the sun is constantly moving westward, and when the location of their tribe turns to a place where the sun can't shine, the sun disappears.

It turns out that this is why there is day and night!

It turns out that the sun rises in the east and sets in the west, not because the sun itself is moving, but because the earth on which others live is rotating!

Many people looked abrupt, feeling as if a new door was opening in front of them.

At the same time, their gaze is not limited to the small piece of land they already know, but expands to a very large place.

When they set their eyes on the sea of stars, know these amazing secrets, and understand what the land they live in, when they look back at the places they live in, they feel that they are not so big.

But at the same time, after understanding your own insignificance, you will not feel arrogant and will not be easily satisfied.

"Can someone tell me now why it's hottest at noon, but at night, it's colder?"

Han Cheng looked at everyone, paused for a moment, and continued to ask questions, letting the people in the tribe think for themselves.

"It's because at noon, there is the sun, and at night, the sun doesn't shine."

This question is relatively simple, as soon as Han Cheng's words fell, many people raised their hands.

Han Cheng asked one of them to stand up and answer.

"Excellent! It's because the sun shines at noon, but not at night. This is the same as when we roast around the fire, the side that is roasted by the fire is warm, and the side that can't be roasted will be cold. ”

Han Cheng nodded approvingly, then looked at the joyful man and continued to speak: "Then can you tell me why it is hot at noon, but it is colder in the morning and evening?" Morning, evening, and noon, but the sun shines. ”

After such a question was asked, the person who answered the question was immediately stopped.

Yes, the sun shines in the morning and evening, so why is it the hottest at noon?

Not only her, but many people sitting in the blue brick and tiled house were embarrassed by the question that Han Cheng asked again, and they were thinking about it vigorously.

"Miko, I know!"

After a moment, Shi raised his hand and looked at Han Cheng and said with some excitement.

Han Cheng asked the man to sit down and let the stone speak.

"It's because in the morning and in the evening, we're far from the sun, and at noon we're close to the sun.

It's like a fire, it's hot when it's close to the fire, but it's not so hot when it's far away. ”

Shi stood up and said, and by the way, he followed Han Cheng's example, taking the well-known roasting fire as an example.

Han Cheng smiled again, this guy is really talented in these aspects, and he has the style he had back then.

"Then, how do you know that it is close to the sun at noon, and far from the sun in the morning and evening?"

Someone questioned the stone.

Seeing this, Han Cheng didn't make a sound, but looked at the person who asked the question with a smile, as well as the stone, wanting to see how the stone answered.

"It's very simple, not long ago, the Son of God showed us with a rope and a fruit that the distance between the sun and the edge of the earth is farther than the distance to the middle, and in the same way, we can get this."

In the face of such a question, the stone did not pestle at all, and opened his mouth to say the solution.

When Han Cheng heard this, a smile appeared on his face again.

This guy's brain is really good, and he actually thinks of the experiment he did not long ago.

At that time, it was to explain to them why it was hotter and hotter the further south they went, but I didn't expect that this guy would actually use it here.

The same approach can indeed be used to explain and verify this aspect of the problem.

When the stone said this, many people remembered the experiment that Miko did in the rabbit circle before, and then connected it with the present, and found that this is indeed the case.

Seeing everyone's reaction, Shi's heart became more comfortable, and a kind of happiness arose as a school bully abusing a scumbag.

"Why, then, does the sun look so big in the morning and evening, and so small at noon? Isn't it true that the closer you get, the bigger it looks, and the farther away it gets, the smaller it looks? ”

The other man spoke up, his voice confused.

As soon as these words came out, the people who had just thought that the stone was right also became confused.

The closer you are to the fire, the warmer it gets, and at noon it's closer to the sun, so it's hot, which doesn't sound like anything wrong.

But when it's close, the sun looks like it's the biggest, but the reality is that it looks the smallest at noon.

As soon as these two things are linked, it instantly makes people's heads big, and even the stone that was full of confidence just now was made big by this question, and the head was full of mud.

He thought it was close to the sun at noon, but he couldn't understand why it seemed so much smaller at noon than it was in the morning and evening.

For a while, everyone in the big tile house of Qingque was confused by this tricky question, and their minds were full of paste.

For the people in the tribe, being stunned by this question, Han Cheng didn't feel strange at all, because it was a problem for the ages.

When Confucius traveled eastward, when he saw the two children arguing about the day, Confucius was stunned by this tricky question, and was ridiculed by the two children.

The people of their own tribe have now encountered this eternal problem, and it is normal for them to be dizzy.

When he was in school, when he learned this text, he was also confused, and he felt that what the two children said made sense.

The doubts about this question were not finally understood until he went to high school and studied geography.

"Miko, is it closer to the sun in the morning, or closer to the sun at noon?"

The dizzy stone that was surrounded finally couldn't help but ask Han Cheng out loud.

Originally, he was convinced of his results, but now, he was shaken.

The rest of the people also looked at Han Cheng in unison, wanting to get an accurate answer from their Divine Son and solve this problem that made their brains hurt.

"Of course, it's close to the sun at noon, and far from the sun in the morning and evening."

This and the problem can stump the old master Confucius, who is seriously biased, but it can't stump Han Cheng, a liberal arts student with very good geography grades.

After hearing the stone's question, he gave an accurate answer very simply, without saying anything at all.

In the past, after getting an accurate answer, many people in the tribe would not continue to dig into the roots, but this time it is different, and they all want to know why this is the case.

Why does the sun look so big in the morning, but it turns out to be so far from the ground......

Seeing is not necessarily believing, and in many cases, the eyes can also deceive people and give people an illusion.

"This is because in the morning, the sun shines in obliquely, and is particularly refracted by the atmosphere wrapped around the earth, magnifying the sun.

But at noon, the sun shines more directly, and instead of magnifying the sun, it shows the sun as it is, so at noon, the sun looks smaller. ”

Of course, the people in the tribe couldn't understand such words, and even the most talented stones were dizzy.

Han Cheng thought about it, so he asked people to go to the basin of water outside and take a piece of ice, carefully make it into a convex lens-like existence, and then put it in front of one of his eyes.

As a result, the people in the tribe were surprised to find that this eye of the Son of God was much larger than the other.

When Han Cheng removed the ice cube from his eyes, the eye immediately returned to its normal size.

"In the morning, the atmosphere acts like this ice cube, magnifying the sun, and at noon, when the sun shines directly, that atmosphere has no magnification effect."

Han Cheng said, and put a flat ice cube in front of one eye, and his eye looked about the same size as before.

This magical scene made everyone amazed, but at the same time, through this analogy experiment, many people in the tribe understood what was going on.

After Han Cheng saw that many people understood, he gave the ice cube in his hand to the person sitting in front of him and asked them to play with it.

"Son of God, the earth we live on is a big ball, and it is still spinning in circles, why hasn't that person been thrown out?"

While everyone was curious about how ice cubes could enlarge things, Wu, who hadn't spoken much, finally asked a question.

He struggled with this question for a while, and he didn't come up with a reason, and at this time, seeing that everyone was not asking questions, Miko didn't say anything more, and after thinking about it, he stood up and said it.

After Wu's voice sounded, the blue brick and tiled house became a lot quieter all of a sudden, and after figuring out the question asked by Wu, the inside of the blue brick and tiled house became quieter.

If it weren't for Wu Brought It up, they really wouldn't have realized the problem.

Now that Wu said this, they thought about it along Wu's train of thought, and suddenly fell into the same confusion and doubt as Wu.

Seeing this, Han Cheng sniffed, fortunately he was a traverser, otherwise he would have been really stopped by you.

He looked at the crowd, cleared his throat, and prepared to begin to stand on the shoulders of giants to snatch Mr. Newton's apple.

"This is because the earth we live in has an attraction that can draw us all, not just us, but anything on the earth.

It is precisely because of this invisible and intangible attraction that we will not be thrown away in the rotation of the earth. ”

Just like Han Cheng thought, after he threw out the gravitational force, everyone in the tribe stopped talking one by one, and their eyes were either surprised, confused, or thinking......

"But, Miko, the bird can fly in the sky, and I can jump up."

After this atmosphere lasted for a while, someone finally couldn't help but speak.

"But the bird can't fly in the sky all the time, there is always a time when it lands on the ground or on a tree, and you can only jump off the ground for a short time, and then it will fall back to the ground.

If the earth is not attractive, when you jump up, you should not fall down, but float in the air, or go all the way to the sky? ”

Han Cheng asked with a smile.

After such a rhetorical question, everyone suddenly froze.

yes, why do you have to fall to the ground? Even the farthest bird will fall to the ground when it gets tired of flying.

The leaves of the trees that are blown to the sky by the wind, and the stones that are thrown up by oneself and others, will eventually fall to the ground.

If it weren't for the gravitational pull that Miko said, all of these things would have flown somewhere else, right?

If it weren't for the gravitational force that Miko said, and the others would have become accustomed to it, they wouldn't be able to live on this big rotating ball, right?

Han Cheng looked at everyone's reactions, and a smile overflowed on the corner of his mouth, it seemed that he had been very successful in snatching Mr. Newton's apple this time.

If you think about it, many things are the most difficult when they were first invented or discovered, but once someone pierces this layer of window paper and gets it out, it is not difficult for later people to look at it again.

For example, Han Cheng today Han Cheng told the people in the tribe about natural knowledge, including gravity, and it is not so difficult to understand it when it is combined with the actual situation of reality.

If it were difficult, it would not have been taught in high school and spread to the public.

And he, as a member of a sentient being with mediocre qualifications, could not understand all of this and remember it firmly.

That's the end of today's story, when everyone came out of the inside of the big blue brick house, looking at the familiar scene outside, they all felt that something was different.

It seems that the whole person understands a lot of things at once, and has a different view and cognition of the world.

When night fell, the Blue Sparrow tribe, like the rest of the place, was also shrouded in night.

Lying on the warm ondol, the stone opened a corner of the window beside him.

Through this corner of the gap, he was able to see two bright stars in the night sky.

At this time, the stone eyes were as bright as the two stars in the night sky.

Thinking back to the things that Miko said today, Shi's heart fluctuated terribly.

Before that, he didn't think that there were so many things hidden behind these things that he and others had long been accustomed to.

Many seemingly ordinary things have their own reasons.

Today, with the words of the Son of God, he discovered a different world, as if a door had been opened in his mind.

Perhaps, when you know enough about this world, you will be able to fly to the sky!

I don't know how long he lay here, the stone lowered the corner of the animal skin curtain, and he couldn't help but clench his fists when he thought about these things.

Han Cheng, who was lying on the kang, was also not very calm in his heart when he thought about what happened today.

As a time-traveler, the most valuable thing is actually what you know, the knowledge that is far beyond this era.

Especially his kind of direct travel to prehistory.

Traveling back to prehistory is inconvenient in many ways, but from another point of view, it is not without any benefits.

At least you can build your tribe according to your own ideas, and no one will be shackling you at your fingertips.

There will be no people who claim to be orthodox and jump out to criticize you with righteous words, saying that you are deviant, that you can only use strange and obscene skills, and that you do not understand the way of the ancestors.

Here, when you want to do something, you can do it directly, without having to fight with all kinds of people, and finally turn what you want to get beyond recognition, or even be stillborn.

As a descendant, Han Cheng naturally knew how important the furs he mastered were to his own tribe, or to the entire era.

So he wants to pass on these things as much as possible.

With his fur, the tribe will have to make a very good start with a lot of detours.

Later, when the tribe developed, stepping on the shoulders of the former, some outstanding talents emerged.

Among the superficial things he learned, the knowledge of natural sciences can be said to be crucial.

The saying that science is the first force of development is really very true.

Natural science knowledge, or basic scientific theories, is a vital part of the development of science.

After the emergence of gravity, various new things were born, which greatly promoted the development of science.

When it has a bottleneck and is constrained, the special theory of relativity and the general similarity theory are born, and on its basis, a new round of explosive growth has sprung up.

Maybe in the future, I will tell more about this knowledge to the people in the tribe, and slowly tell the people in the tribe who have talent in this area.

As for some things that are too advanced and half-understood, you can record them first, and maybe later, when the tribe has developed to that point, future generations will be able to suddenly realize and solve the mystery in his heart, so as to promote the great development of the entire tribe.

Han Cheng was lying on the kang and thinking like this, and the more he thought about it, the more he felt that his ideas were very reliable.

The barrel of the gun will rot, the money bag will change owners, and the only thing that will not change is the truth, especially about science.

After all, matter is not transferred by matter.

Of course, Han Cheng also knew that according to the current situation of the tribe, it was unrealistic to want to develop these quickly, and if he wanted to realize these ideas, it would be more life-threatening than completely cultivating rape into Chinese cabbage.

But as long as you do that, there is hope.

If a seed is planted today, it may not fail to grow into a towering tree and bear abundant fruits.

Who can say for sure what the future holds?

Lying on the kang, his thoughts fluttered wildly, and after a long, long time, Han Cheng could be regarded as completely asleep.

In the days that followed, the weather was sunny and cloudy, and on two days there were even some fine snowflakes falling.

On two of these days, the temperature also rose, but not much, and it did not last a few days before it dropped again.

Those leaves that were not so yellow before, under such a climate, quickly completed the transformation to yellow, under the howling of the cold wind, they were sprinkled one after another, and people stepped on them, making a crisp scorching sound.

The autumn of the eleventh year of the green sparrow is really gone, and it is squeezed out by the strong winter.

In such weather, many activities of the Blue Sparrow tribe have not stopped.

For example, burning charcoal, transporting manure to the land around the tribe, ploughing the ground before the snow falls, and so on.

And Han Cheng took the time to tell the tribe more about geography that was interested.

Again, the method of asking questions and then answering them is still used.

For example, why there are four seasons of spring, summer, autumn and winter, and then after throwing this question out, I began to slowly tell everyone about the rotation of the earth, perihelion, aphelion, and the Tropic of Capricorn.

It is difficult for many people to understand these things, but they can't stand Han Cheng's time, patience is enough, and he tries his best to talk about it over and over again, little by little, and over and over again.

At the beginning, the people in the tribe accepted the new Mandarin from scratch, as well as Chinese characters, but they couldn't withstand Han Cheng's repeated offensives, and one by one they were honed by Han Cheng to speak Mandarin, write and recognize some Chinese characters.

Now that this spirit has been taken out again, many people have come to understand what is going on.

Even some people who didn't understand, under Han Cheng's repeated offensives, kept these things he said firmly in their hearts.

When you keep these things in your heart, in the years to come, sometimes unconsciously, you will suddenly understand some of them.

Regarding the treatment of knowledge, learning and applying these things, according to Han Cheng's own experience, he first had to work hard, and with a spirit similar to rote memorization, he ate these things, and on the basis of keeping them firmly in mind, he learned and applied them alive.

Otherwise, you don't even know some basic foundations, how can you learn and apply them?

Of course, this is only for people with ordinary qualifications, and for people who are particularly quick to understand such as stones, and sometimes can draw inferences by the way, such a thing simply does not exist.

However, for those people who met when they were in school in the later generations, they were obviously ordinary people, and they were very particular about learning and applying, and then when they heard that they had worked hard, they would only memorize by rote when they heard that they had worked hard, and then later, they were a mess, Han Cheng could only sniff.

As big a turtle as there is, there is a nest as big as a nest, and stupid people use stupid methods, Han Cheng feels very reasonable.

People are valuable in having self-knowledge, and they can't be arrogant, but they can't be arrogant, recognize themselves, and have the courage to admit themselves, sometimes it's very important, after all, there are too few geniuses in this world, and more are just sentient beings with similar qualifications.

Well, this is a bowl of poisonous chicken soup from primitive times......

()