Chapter 130: The door to physics opened by 'Like a Dream'
"Miss Li, I heard that you wrote a poem not long ago called "Like a Dream: The Rain and the Wind Last Night"?"
In front of the blackboard.
Hearing Xu Yun's words.
A trace of visible pride suddenly appeared on Xiao Li's face, but he still said a little reservedly on the surface.
"It's just a clumsy piece of writing that won't make it onto the stage. Uncle Su's literary talent is really high."
Within a week a few months ago, she wrote two "Like a Dream" songs.
That is, the famous "Rumeng Ling: Chang Ji Xi Ting Sunset" and "Rumeng Ling: Last Night's Rain and Wind Sudden Storm" are famous in later generations.
It was these two lyrics that made Xiao Li suddenly famous, and he had the style of becoming famous in one song.
The lyrics of the Song Dynasty are different from the poetry of the Tang Dynasty. Tang poetry can be recited directly, but Song lyrics are for singing, and the name of the lyrics is the so-called tune.
However, Xu Yun’s current intention was to give an example, so he started to recite it softly.
“Last night it was rainy and windy,
Heavy sleep will not eliminate the remaining wine..
Examine the person behind the curtain,
However, Haitang remains the same.
Do you know,
Do you know?
It should be green, fat, red and thin!”
After finishing reciting, he clapped his hands and said in admiration
"Please don't say anything about being self-effacing. Miss Li's literary talent is truly admirable, and I think I'm not as good as that.
Especially this last sentence, Miss Li, I heard that this is your question to the maid?"
Xiao Li nodded slightly, as if thinking of his somewhat careless maid, the corners of his mouth suddenly curled up slightly.
"Yes, the little girl got drunk that day after drinking. Before she fell asleep, she vaguely remembered that it was raining lightly and the wind was strong outside, and the sound was like a tiger roaring and a dragon roaring.
After waking up, I thought that the crabapples in the garden in the courtyard were not covered, so I asked Huan'er about the situation outside the house.
Unexpectedly, that stupid girl was clearly rolling up the curtains, but without even looking outside the room, she said to me, "Miss, Begonia is just like yesterday."
The little girl couldn't hold it back for a moment and scolded her lightly.
After all, when a strong wind blows, the flowers will be blown to the ground, and most of the leaves will be left on the trees."
Xu Yun raised his eyelids and glanced at her, his expression a bit sad.
In this day and age, it is a blessing for a maid to be able to follow a young lady like Xiao Li.
But soon.
He changed the topic and said
"Then Miss Li,&bsp&bspcan you allow me to ask another question?"
Xiao Li raised his eyelids and glanced at him, and said seriously
"Wang Lin,&bsp&bspYou are already a guest of Uncle Su's house and have been sent to the slave state. It's better not to call yourself a villain anymore. If you have anything to say, just say it outright."
Xu Yun slightly arched his hands towards her to express his gratitude, and then asked
"Miss Li, since you know that the begonias outside the house are green, fat, red and thin, have you ever thought about why there is such a scene?"
A question mark suddenly appeared on Xiao Li's face
"?"
Looking at Xiao Li who was a little confused, Xu Yun continued to ask
"Miss Li,&bsp&bspLet me ask you,&bsp&bspWhere did the blown begonia flowers go?"
Xiao Li blinked and blurted out the answer
"Of course it fell to the ground."
Xu Yun nodded slightly,&bsp&bspthen pointed to the sky and then to the ground,&bsp&bsp said
"Then Miss Li, let me ask you, why did these crabapples fall to the ground instead of flying to the sky?"
Xiao Li was stunned and subconsciously wanted to answer
"Because because"
As a result, after thinking about it for a long time, the girl was suddenly surprised to find that she couldn't answer this seemingly common question!
Objects at a certain height above the ground will fall to the ground after losing support.&bsp&bspThis is common sense that even a three-year-old child knows.
But it seemed that no one had ever told her why this phenomenon happened, as if it was acquiesced.
And while Xiao Li was deep in thought.
The two people beside her, Lao Su and Xiao Zhao, also had different expressions.
Among them, Xiao Zhao is almost the same as Xiao Li. He has a confused look on his face and his mouth is slightly open, not knowing how to speak. His ideas seem to have been slightly impacted.
But Lao Su is different.
Although his face was filled with a little surprise, it was more of a thoughtful look.
After a while, I saw him slowly saying
"Xiao Wang, I was fortunate enough to get to know Mr. Hengqu more than forty years ago.
At that time, the two of us hit it off, and we talked many times by candlelight at night, talking about astronomy, geography, ancient and modern humanities, and we talked about everything.
One time when we were talking about the general trend of landscapes, we started from the sentence "water flows to lower places" and briefly talked about the reasons why objects fall.
At that time, Mr. Hengqu believed that there was some kind of magnetic force in the soil of the earth that would actively lead objects to our feet.
However, this kind of magnetism is difficult to see with the naked eye, and it was only a casual topic at the time, so it was not too in-depth."
Hearing what Lao Su said, Xu Yun was slightly startled.
Immediately, a question in his mind was revealed silently.
When Lao Su was studying the operation of the generator, he proposed an overview of the principle of 'force' when he met Xu Yun the next day.
To a certain extent, that overview is infinitely close to the truth about magnetism generating electricity.
At that time, while Xu Yun was surprised, he also had some vague doubts in his heart.
That is, Lao Su's angle of entry seems to be a little too correct, directly locking the core point of the magnetic force's work.
However, considering that Lao Su is now considered a complete body, he is not a youth version like Mavericks in the copy.
Therefore, Xu Yun once thought that he came up with this aspect based on experience. After all, there are too many precedents for flashes of inspiration in the history of science.
But now it seems.
Lao Su's exploration of 'force' - or the prototype of his cognition - should have started more than forty years ago.
Mr. Hengqu.
It refers to Zhang Zai.
Zhang Zai was a famous thinker, educator and one of the founders of Neo-Confucianism in the Northern Song Dynasty. He was also the most famous among the Five Sons of the Northern Song Dynasty.
He developed the idea of "Qi Monism" and was the master of the "Two Ones" theory of ancient Chinese dialectics.
This chapter is not finished yet, please click on the next page to continue reading the exciting content! Of course.
Compared with Zhang Zai's name, what he said may be more famous.
"Establish a mind for heaven and earth, establish a destiny for the living and the people, carry forward the unique teachings of the past saints, and create peace for all generations."
That's right.
This famous saying that appears in time travel literature before the Song Dynasty came from Zhang Zai's mouth.
At the same time, Zhang Zai was also a relatively rare supporter of the round earth theory in ancient times.
Speaking of the round earth theory, later generations generally believe that the ancient Greek mathematician Pythagoras first proposed the concept of the earth in the century BC.
Wait until the century B.C.
Eratosthenes, a scientist who lived in Alexandria, used geometric methods to establish the concept of the earth and calculated its diameter.
In ancient China, there were many supporters of the round earth theory.
The most famous one belongs to a sentence in Zhang Heng's "Notes on the Armillary Sphere" of the Eastern Han Dynasty.
"The sky is like a chicken's chicken. The celestial bodies are round like pellets, and the earth is like the yellow inside of a chicken's chicken. They live alone in the sky. The sky is big and the earth is small. There is water inside and outside the sky. The sky encloses the earth, just like a shell wrapped in yellow. The heaven and the earth stand on the basis of the energy.
Carrying water and floating.”
At the same time, there are also records in the Five Movements Theory of "Huangdi Neijing·Suwen"
"The emperor said, is the earth under the earth? Qi Bo said, the earth is under the people, and it is in the void. The emperor said, Feng Hu? Qi Bo said, the great power lifts it up."
That is to say, Huang Di asked what is under the heaven and the earth?
Qi Bo said that there was nothing under heaven and earth, it was all emptiness.
Then Huangdi asked what Taixu was?
Qi Bo said that heaven and earth are floating spaces.
But it's a pity.
Due to various reasons, ancient China did not form a complete theoretical system for the round earth theory. There were only scattered supporters in each dynasty, and it was not until the Ming Dynasty that real improvement began.
Of course.
The current year is not too far away from the Ming Dynasty on the timeline (compared to the Han and Tang Dynasties), so supporters of the round earth theory are not particularly rare, let alone heretical.
The Zhang Zai mentioned by Lao Su was the most famous scholar of the round earth theory in the Song Dynasty.
Zhang Zai once said a few words in his most important work "Zhengmeng"
"The pure yin of the earth is condensed in the middle, and the floating yang of the sky rotates outside. This is the constant body of heaven and earth."
"The fixed stars are stationary, purely connected to the sky, and rotate with the floating sun without end. The sun, moon and five stars move against the sky and encompass the earth."
"The earth is in the air. Even if it rotates to the left along with the sky, the stars it is attached to will follow."
Of course.
The star in the second sentence does not refer to stars, but fixed stars.
Other than that.
Zhang Zai also believes that objects will fall because ‘everything has magnets’
There is a space deep under the earth, and the soil in it has special magnetism, so it attracts objects to fall.
The reason why people are not completely sucked into the center of the earth is because they are blocked by the surface soil.
Therefore, he warned future generations not to dig too deep into the ground, lest the surface soil be dug up and everyone would be sucked into the ground.
be honest.
From the perspective of future generations, Zhang Zai's arguments actually have quite a few errors.
For example, it is not magnetism that attracts objects to fall. Another example is that the 'surface' beneath our feet is extremely deep, reaching more than 6,000 kilometers.
Even the Kola Super Deep Drill of later generations of Mao Xiong only dug to the depth of 1 meter underground.
Suppose the earth is a thirty-story building with steps between each floor.
Then people in later generations just stood at the entrance to the top floor and walked down.
Just one step.
So let alone digging out the ground, even if the earth doesn't do anything for you to dig, it is impossible for humans to hollow out the earth.
But it’s still the same sentence.
It is meaningless to comment on a certain point of view a thousand years ago based on the relatively formed cognitive system of later generations.
These views of Zhang Zai can be said to be the ceiling of this era, and have already touched the category of gravity in nature.
Unfortunately, Zhang Zai is not a professional physicist, and he has not even experienced much education in physics knowledge.
Therefore, after putting forward his point of view, he did not have the ability to demonstrate his reasoning, but instead deduced Neo-Confucianism.
However, due to Zhang Zai's influence, Lao Su obviously has some relevant knowledge, which is obviously a good thing.
Therefore, after hearing what Lao Su said, Xu Yun nodded slightly towards him and said with some admiration
"Mr. Hengqu is a scholar of heaven and man. Although the theory of magnetism he proposed is not accurate, it is very close to the truth."
Then he stepped on the ground with his feet, and the cloth shoes made a dull sound when they came into contact with the ground.
"According to the Feng Ling Yueying Sect's handwriting, the land under our feet is called the earth, and it is an approximately round sphere.
What attracts objects to fall is a force called gravity."
Note
In order to avoid being accused of being irritating, please explain that these two chapters will have a long-term foreshadowing, and it is also one of the top three most important foreshadowings in this book. You may consider paying attention here.
By the way, there should be ten fan titles this month. You can pay attention to the comment area. There are four big league leaders. It is estimated that they need to be the leader or above.
