Into Unscientific

"Miss Li, I heard that you wrote a poem not long ago, called "Like a Dream Order Last Night's Rain and Wind Sudden"?"

In front of the blackboard.

Hearing Xu Yun's words.

A trace of pride visible to the naked eye suddenly appeared on Xiao Li's face, but on the surface he still said with some reserve:

"It's nothing more than a clumsy piece of writing, and it won't make it to the stage. Only Uncle Su's literary talent can be called high."

Within a week a few months ago, she successively wrote two poems like Dream Order.

That is, the famous "Like a Dream Order·Chang Ji Xi Ting Sunset" and "Like a Dream Order· Last Night Rain and Wind Sudden".

It was these two lyrics that made Xiao Li suddenly famous, and he looked like he had become famous all at once.

The lyrics of the Song Dynasty are different from the poems of the Tang Dynasty. Tang poems can be recited directly, but Song lyrics are used for singing. The name of the lyrics is the so-called melody.

But right now Xu Yun's intention was to give an example, so he recited directly:

"Last night the rain cleared the wind,

Deep sleep does not dissipate residual wine.

try the curtain man,

But Dao Haitang is still the same.

do you know

Do you know?

It should be green, fat, red and thin! "

After the recitation, he clapped his hands and said in admiration:

"Please don't talk about being self-effacing, Miss Li's literary talent is really admirable, and the villain thinks it's not as good.

Especially the last sentence, Miss Li, I heard that this is your question to the maid? "

Xiao Li nodded slightly, as if thinking of his careless maid, the corners of his mouth suddenly turned up slightly:

"That's right, the little girl got drunk that day, before she fell asleep, she vaguely remembered that it was raining and windy outside the house, and her voice was like the roar of a tiger and the roar of a dragon.

After waking up, he realized that the begonias in the garden in the courtyard were not covered, so he asked Huan'er about the situation outside the house.

Unexpectedly, that stupid girl was clearly rolling up the curtain, but she didn't even look outside the house, and said to me, "Miss, Haitang is just like yesterday".

The little girl couldn't hold back for a moment, so she reprimanded her lightly.

After all, when the strong wind blows, the flowers will definitely be blown to the ground, and there are probably only a few leaves left on the trees. "

Xu Yun raised his eyelids and glanced at her with a slightly sad expression.

In this day and age, it must be a blessing for a maid to be able to follow a young lady like Xiao Li.

But soon.

He changed the subject and said:

"Then Miss Li, can you allow the villain to ask another question?"

Xiao Li raised his eyelids to look at him, and said seriously:

"Wang Lin, you are already a visitor to Uncle Su's house, and you have gone to slavery, so don't call yourself a villain, just speak out if you have something to say."

Xu Yun slightly arched his hands towards her to express his gratitude, and then asked:

"Miss Li, since you know that the crabapple outside the house is green, fat, red and thin, have you ever wondered why there is such a scene?"

A question mark suddenly appeared on Xiao Li's face:

"?"

Looking at Xiao Li who was a little dazed, Xu Yun continued to ask:

"Miss Li, let me ask you, where did the crabapple flowers that were blown off go?"

Xiao Li blinked, and the answer blurted out:

"Of course it fell to the ground."

Xu Yun nodded slightly, then pointed to the sky, then to the ground, and said:

"Then Miss Li, let me ask you, why do these begonias fall to the ground instead of flying into the sky?"

As soon as Xiao Li was stunned, he subconsciously wanted to answer:

"Because. Because"

As a result, after "because" 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. This is a common sense that even a three-year-old child knows.

But it seems that no one has ever told her why this phenomenon happened, as if she had acquiesced.

And just as Xiao Li fell into deep thought.

Lao Su and Xiao Zhao beside her also had different expressions.

Among them, Xiao Zhao is similar to Xiao Li, with his mouth slightly open in a daze, not knowing how to speak, and his conception seems to have been slightly impacted.

But Lao Su was different.

Although his face was filled with a little surprise, it was more of a thoughtful expression.

After a while, I saw him slowly say:

"Xiao Wang, this old man had the honor to meet Mr. Hengqu more than forty years ago.

At that time, the two of us hit it off immediately, and we talked many times at night by candlelight, covering everything from astronomy, geography, ancient and modern humanities.

One time when we talked about the general trend of mountains and rivers, we started from the phrase "water flows to the bottom", 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, which would actively guide objects to our feet.

However, this kind of magnetic force is difficult to see with the naked eye, and this was just a topic that was casually mentioned at the time, so it has not been too in-depth. "

Hearing Lao Su's words, Xu Yun was slightly taken aback.

Immediately, a question in his mind was silently revealed:

When Old 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.

On a certain level, that overview is infinitely close to the truth that magnetism generates electricity.

At the time Xu Yun was astonished, but also had some doubts in his heart:

That is, the angle that Lao Su cuts in seems to be a bit too straight, directly locking on the core point of magnetic work.

However, considering that Lao Su is now considered a complete body, he is not a youthful version like Maverick in the 1665 copy.

Therefore, Xu Yun once thought that he thought of this level based on experience. After all, there are too many precedents in the history of science.

But now it seems.

Lao Su's exploration of "force" - or the rudimentary form of 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 Confucianism in the Northern Song Dynasty, and he was also the most famous of the five sons of the Northern Song Dynasty.

He developed the thought of "qi monism" and is the master of the "two one" theory of ancient Chinese dialectics.

Of course.

Compared with Zhang Zai's name, a sentence he said may be more famous:

"Build a heart for the world, establish a life for the people, inherit the knowledge of the past, and create peace for all generations."

That's right.

This famous saying that appeared in 90% of the travel texts before the Song Dynasty came from Zhang Zai.

At the same time, Zhang Zai was also a relatively rare supporter of the theory of the circle of the earth in ancient times.

Speaking of the round earth theory, later generations generally believe that the concept of the earth was first proposed by the ancient Greek mathematician Pythagoras in the 6th century BC.

Wait until the 3rd century BC.

Eratosthenes, a scientist living in Alexandria, established the concept of the earth with geometric methods and calculated the diameter of the earth.

In ancient China, there were many supporters of the theory of the circle of the earth.

The most famous of these belongs to a sentence in Zhang Heng's "Notes on the Armillary Sphere" in the Eastern Han Dynasty:

"The sky is like a chicken. The celestial body is round like a bullet, and the earth is yellow like a chicken. It lives alone in the sky. The sky is big and the earth is small. There is water in the sky, and the sky and the earth are like a yellow shell. float on water."

At the same time, there are also records in the Five Movements of the "Huangdi Neijing Suwen":

"The emperor said, is the earth below? Qi Bo said, the earth is below people, and it is also in the void. The emperor said, Feng? Qi Bo said, it is also the atmosphere."

That is, the Yellow Emperor asked what is under the heaven and the earth?

Qi Bo said that there is nothing under the heaven and the earth, it is nothingness.

Then the Yellow Emperor asked what Taixu was?

Qibo said that heaven and earth are spaces floating in it.

But unfortunately.

Due to various reasons, ancient China did not form a complete theoretical system of the theory of the circle of the earth. There were only scattered supporters in each dynasty, and it was not until the Ming Dynasty that it began to really improve.

Of course.

The current 1100 year is not too far away from the Ming Dynasty on the timeline (compared to the Han and Tang Dynasties), so supporters of the theory of the circle of the earth are not particularly rare, let alone heretical.

The Zhang Zai mentioned by Lao Su was the most famous scholar of the circle of earth 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 revolves outside. This is the normal body of the heaven and the earth."

"The stars do not move, they are purely related to the sky, and they are also those who revolve with the floating sun and are not poor. The sun, the moon and the five stars go against the sky, and they also cover the earth."

"The earth is in the air, and although it follows the sky and rotates to the left, the stars it is attached to follow."

Of course.

The star in the second sentence does not refer to a star, but a fixed star.

Other than that.

Zhang Zai also believes that objects will fall because "everything has magnetism":

There is a space deep under the earth, and the soil in it has a special magnetic force, so it attracts objects to fall.

But people are not completely sucked into the center of the earth because they are blocked by the surface soil.

Therefore, he warned future generations not to dig the ground too deep, so as not to dig up the surface soil and cause everyone to be sucked into the ground.

be honest.

From the perspective of future generations, Zhang Zai's argument actually has quite a few mistakes.

For example, it is not magnetic force that attracts objects to fall, and another example is that the "surface layer" under our feet is extremely deep, as much as more than 6,000 kilometers.

Even the Kola ultra-deep drill of Maoxiong in later generations has only dug to 12,262 meters underground.

If it is assumed that the earth is a thirty-story building with 20 steps between each floor.

Then people in later generations just stood at the entrance of the top floor and walked down

Just one step.

So let alone digging up the ground, even if you don’t do anything to dig the earth, it is impossible for human beings to hollow out the earth.

But still that sentence.

It is meaningless to comment on a certain point of view a thousand years ago with 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 touched the category of gravity in nature.

It is a pity that 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 prove his own reasoning, but deduced Neo Confucianism.

However, under the influence of Zhang Zai, Lao Su obviously possessed a certain amount of relevant cognition, which is obviously a good thing.

Therefore, after hearing Lao Su's words, 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 put forward 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 of contact with the ground:

"According to the records of Fenglingyueyingzong's handwriting, the land under our feet is called the earth, and it is a nearly round sphere.

What attracts objects to fall is a force called gravity. "