Little Farmer Big Star

Remember in one second【】

A certain city.

The weather is very cold. Although the snowfall last night was not heavy, it still turned the green belts on both sides of the street into a vast expanse of white, which looked quite beautiful.

It doesn't snow often in this city, only two or three times a year at most. Once it snows, it always makes people in this city happy.

This is true for adults, and even more so for children.

Occasionally, children passing by on the street reached out to grab a handful of snow and played with it without feeling cold.

A tall, thin man in his thirties was walking down a street with a teenage girl.

The little girl seemed to be very interested in the snow on both sides of the road. She held the hand of the tall and thin man next to her and walked all the way, her eyes always staring at the snow on both sides of the road.

As they walked, the little girl raised her head, looked at the tall and thin man beside her and asked, "Dad, why does it snow in winter?"

The tall and thin man smiled and replied: "Because the weather is very cold in winter, it will snow everywhere."

The little girl said "Oh" and turned her head to look at the snow again. After a moment, she raised her head again and asked: "Dad, why does it snow when it's cold?"

The thin man smiled and said: "Because...because...this...because"

The tall and lanky man's smile suddenly stopped because he found that he couldn't answer his daughter's question.

Everyone knows that it snows in winter because the weather is cold, but why does it snow when the weather is cold?

The tall and lanky man thought he should know the answer, so he wanted to answer without hesitation just now.

However, when he really wanted to say it, he suddenly realized that he couldn't explain it clearly at all.

Why do I feel like I should know the answer, but when I really want to say it, I can't say it?

The tall and lanky man thought for a while and found the reason. It seemed that he actually didn't know the answer. It was just because it was a very simple natural common sense that gave him the illusion that he knew the answer.

In other words, he does vaguely know some concepts, but cannot express them accurately in words.

"dad,

Why? "The tall and thin man had just finished his thoughts when his daughter saw that he didn't answer for a long time and urged her again.

"Well," the tall and thin man was slightly embarrassed and anxious. He could say, "Dad doesn't know about this problem either."

But saying this will not only disappoint his daughter, but also affect his glorious image of omniscience in her mind.

The tall and lanky man didn't want things to turn out like this, but he couldn't just give an answer and get away with it.

What should we do?

The tall and thin man was a little anxious. He subconsciously turned his head and looked around, and found a bookstore dozens of meters away in front of him. It was quite large.

The tall and lanky man's eyes lit up, and he remembered that Li Fan's new book, a popular science enlightenment book for children, One Hundred Thousand Whys, was officially released today.

It might have the answers he needs now.

He had actually planned to take his daughter to the bookstore to read a book sometime, and if her daughter was interested, buy one.

Now is the time.

So he said to the little girl: "Yanyan, regarding this question, Dad wants you to find the answer yourself. There is a bookstore in front of you, and there is a book in it, which may allow you to find the answer you want to know."

"Really?" The little girl blinked her big eyes and said excitedly: "Okay! Okay! Dad, let's go in quickly. I want to find the answer."

The tall and lanky man breathed a sigh of relief. He finally passed the test for the time being. It would be best if there were relevant answers on One Hundred Thousand Whys. If not, he would have enough time to go to the Internet to find the answer.

The tall and thin man walked into the bookstore with his daughter and was about to ask a staff member, where are the One Hundred Thousand Whys?

Then he didn't ask any questions.

Because he has already seen One Hundred Thousand Whys, which is placed on the most conspicuous display cabinet in the bookstore.

It was still early at this time, and the bookstore had obviously just opened for business. There were not many customers, and the display cabinet of One Hundred Thousand Whys was still relatively empty.

The tall and lanky man took the little girl's hand and walked to the display case. He picked up the opened book One Hundred Thousand Whys on the display case for guests to try out. He handed it to the little girl and said, "Yanyan, this is it." Book, can you find the answer in this book?"

The little girl took the book and was very excited. She said "Okay" and then opened the book to find the answer she wanted.

The tall and lanky man looked at his daughter with a very serious look and smiled happily. He also picked up another trial book. He was also going to look for it. Is there any answer to that question in it?

If not, he could find relevant answers on the Internet while his daughter is reading.

Opening the book, the tall and lanky man's eyes lit up. The colorful patterns on the page were very interesting, vivid and vivid, and should be very attractive to children.

However, if just these patterns are attractive to children, it is definitely not enough.

After all, this is a popular science enlightenment book, and scientific knowledge should be the focus.

Otherwise, it will really be like what some people on the Internet worried about before, putting the cart before the horse.

As for the relevant scientific knowledge, as the child education experts previously revealed, it is in the form of a question and an answer.

a question, a

^0^ Remember in one second【】

The answer is nothing else.

The tall and lanky man frowned a little at first. He was worried that his daughter would only look at the patterns and ignore the scientific knowledge that goes with the patterns.

However, as he looked at it, he suddenly discovered that the scientific knowledge seemed to be the main body, and the matching patterns were only serving the corresponding scientific knowledge.

In other words, there is no putting the cart before the horse at all.

Moreover, scientific questions and answers that everyone thought would be very monotonous and boring before are now very interesting and attractive when viewed together with those patterns. One question and one answer seems to be the best form of expression.

The tall and thin man was pleasantly surprised. It was indeed Mr. Li Fan's work.

At this moment, the tall and lanky man suddenly heard his daughter's voice of surprise and excitement, "Dad, Dad, I know, I know, I know why it snows when it's cold. Look, you look."

"Is there really an answer to that question?" The tall and lanky man was both surprised and ashamed.

To my surprise, my daughter actually found the answer on her own.

Moreover, the reason why my daughter is so excited at this time is obviously because this is the answer she found herself.

If she had told her the answer herself, it would be obvious that she would not be so excited.

From this point of view, One Hundred Thousand Whys is indeed a very good work and definitely worth buying.

What was embarrassing was that his daughter found the answer in the book before he did, which made him feel ashamed.

Then, the tall and lanky man turned to look at the book in his daughter's hand. On the page he was opening, there was indeed such a question:

"Why does it snow in winter?"

Here is the answer: In winter, the temperature is very low. When the temperature in the high-altitude clouds is below zero degrees Celsius, the water vapor in the clouds will condense into small ice crystals and small snow crystals.

On the one hand, these small ice crystals fall as they condense and increase in weight; on the other hand, they follow the horizontal airflow, updraft and turbulence in the clouds to move up, down, left and right.

In this way, water vapor continues to condense on the surface of the ice crystals, and the ice crystals continue to grow and grow, eventually forming snowflakes.

When the updraft is not strong enough to bear its weight, the snowflakes will fall all the way down. When the surface temperature in winter remains below zero degrees Celsius, the snowflakes will fall from high altitude to the ground. I can see it snowing.

After reading the answer, the tall and lanky man couldn't help but said in his heart: "That's it."

He really didn't know the answer before. From this point of view, it is necessary for him to read this book One Hundred Thousand Whys.

Dear, this chapter is finished, I wish you a happy reading! ^0^