In the lesson of two children s debate on the sun, how to explain in scientific language whether the

The farthest place to reach the sun is in July every year.

The Earth's orbit around the Sun is elliptical rather than a standard circle. Every year on the first day of July, we reach the farthest point in orbit from the Sun. So why was it so hot at that time?

In fact, there is not much difference between the impact of the Earth being "close to the Sun" and "being far from the Sun" on the Earth's climate.

The sun is the same distance from the earth in the morning and at noon. Why does the sun look bigger in the morning than at noon? It's a visual error, an illusion.

The same object, placed in a group of objects larger than it, appears small, while placed in a group of objects smaller than it appears large. In the same way, the morning sun rises from the horizon against the backdrop of trees, houses, distant mountains and a small corner of the sky, and in this comparison, the sun appears larger. At noon, when the sun rises high and the vast sky is the backdrop, the sun appears smaller.

Secondly, the white part of the same object appears larger than the black one, and this physical phenomenon is called "photoosmosis". When the sun is rising, the background is a dark and dreary sky, and the sun is exceptionally bright; At noon, the background is a blue sky, and the sun does not contrast much with its brightness, so it appears smaller.

The temperature is higher at noon than in the morning, is the sun closer to us at this time than in the morning? Neither is it. The main reason is that the sun hits the earth obliquely in the morning and the sun shines directly on the earth at noon.

At the same time and in the same area, direct radiation is higher than oblique heat. At the same time, at night, the heat of the sun shining on the ground dissipates, so it feels cool in the morning; At noon, the heat of the sun hits the ground, so it feels hot. The temperature is hot or cold, and it does not indicate how far or near the sun is from the ground.

In fact, the sun is always as close to us. The reason why the sun looks big in the morning is because the surrounding scenery is a foil to the surrounding scenery, which can make the sun look bigger. In the morning, the weather is cool, because after a cold night, when the sun first rises, the sun just starts to warm the air and the ground, and it is natural to feel overcast and cold.

By noon, the air and ground had been illuminated all morning, so it felt hotter than in the morning.

When studying "Two Children's Debate on the Sun" in Chinese class, the teacher explained that the sun in the morning is as close to people as the sun at noon because of the following three reasons.

First, because this is the focus of the debate, an accurate answer must be given. Both children used vivid metaphors in their dialogues and used comparative methods to prove the correctness of their views. The first child is intuitive and seems to be justified by the comparison of the size of the area.

The second child also seemed justified in comparing people's feelings about how the sun is hot and cold at different times. But after all, their understanding is only superficial, and they can only cling to their own opinions and cannot get the correct answer.

Second, because Confucius, as a university scholar at that time, was "indecisive" in the face of the "dispute between distance and proximity" between the two children, the teacher had to give a reasonable explanation. Confucius, as a "sage", could not be proficient in various subjects, and the level of human understanding of natural phenomena at that time was still very low. The two children insisted on their own words, and Confucius was "indecided", and the teacher should give a scientific explanation when he fulfilled his duty to answer questions and solve doubts.

Third, the scientific explanation for the distance of the sun from people at different times is that due to the rotation and revolution of the earth, there are indeed some changes in the distance between the sun and people in the morning and noon, but they are so small that they cannot be seen with the naked eye or felt by the body. The two children have different perspectives because they see things from different angles:

One starts from the visual, the other from the sense of touch. The angles are different, the conclusions are reversed. However, it reflects the ancient Chinese people's exploration of natural phenomena and the valuable spirit of independent thinking, bold questioning, and pursuit of truth.

Two children and a half day in Chinese class, to say that the morning sun is the same as the noon sun is similar to one person in the Chinese class, to say that the morning sun is as similar as the noon sun, and the class is two children and a half day in this language class, to say that the morning sun and the noon sun are as similar to people, and they are all like this in class.

I remember that the previous text didn't say that, and the final ending was that Confucius also generously said that he didn't know! Educate people to be honest. Now I guess it's because of universal science education!

In fact, what is described in this textbook is also a more vivid, which is to use the time difference of this kind of lighting to adjust this perception of time.

The text "Two Children's Debate" is still there.

Two children debate the day.

Inscription] "Two Children's Debate Day" is a prose written by the thinker Liezi during the Warring States Period. This is also a very educational fable. It tells the story of Confucius's encounter with two children arguing about the distance of the sun, and Confucius was unable to make a decision.

At the same time, it also praised Confucius's spirit of seeking truth from facts and daring to admit that his knowledge is insufficient, and the spirit of the ancient people who dared to explore objective truth, and could think independently and boldly question. The whole text expresses the characters and the storyline through dialogue description, the character language is very personalized, and the characters are clearly visible and lifelike.

Original text] Confucius traveled eastward, saw two children arguing, and asked why.

A son said: "I go near at the beginning of the sunrise, and I am far away in the middle of the day." ”

A son said: "I am far away at the beginning of the day, and the middle of the day is near." ”

A son said: "The beginning of the day is as big as a car cover, and the middle of the day is like a plate, this is not for the far small and the near is big?" ”

A son said: "The beginning of the day is cool, and the middle of the day is like a soup, this is not hot for the near and cold for the far?" ”

Confucius couldn't decide. The two children smiled and said, "Who knows more about you?" ”

One day, Confucius traveled eastward, saw two children arguing, and asked why.

One child said, "I think the sun is closer when it first rises and farther away at noon." ”

Another child thinks that the sun is farther away at the beginning of the day and closer at noon.

A child said, "When the sun first comes out, it's as big as a car cover, but at noon it's like a plate. ”

Another child said, "Isn't it hot when the sun comes out and cool when it's noon, but it's like putting your hand in hot water?" ”

Confucius also could not judge who was right and who was wrong.

The two children laughed and said, "Who says you are very wise?" ”

The text is still there, and the two of them are talking about the morning sun and the noon sun respectively.

Confucius traveled to the East and saw two children arguing, so he asked why.

Another child said, "I think the sun is closer when it comes out, and far away at noon." ”

Another child thinks that the sun is farther away when it comes out, but closer at noon.

Another child said, "When the sun first comes out, it's as big as a car cover, and at noon it's as small as a plate. ”

Another child said, "When the sun first comes out, it feels cool, and at noon it is as hot as putting your hand into hot water. ”

Confucius could not judge (who is right and who is wrong).

The two children laughed and said, "Who said you were knowledgeable?" ”

The two children are still arguing day, and my child is still in school this year.

Now that there are two children arguing about the sun in Chinese class, is it as close to the sun in the morning as it is at noon?

Both of them are incorrect, because of the common focus of the ellipses of the Sun in the orbital planes of the planets, the distance from the Sun to the Earth is only related to the revolution of the Earth, for example, the distance between the Earth and the Sun is different in different seasons.

The two children debated the sun, they were not questioning the sun, they were questioning the distance of the sun, well, and at that time, technology was very underdeveloped, and people's knowledge was very limited, so they had doubts about the changes of the sun in a day.

Two children debate the sun: Is the sun close in the morning? Or is the sun near noon?