Everyone was resting by the lake, but they couldn't calm down. It didn't take long for the conversation to turn to those gentlemen.
The teaching methods of Zizhu Academy are terrifying, and the collection of books in Zizhu Academy library is also terrifying, which everyone can understand.
However, the existence of those gentlemen really took them by surprise, and it was also what everyone cared about most after they came back to their senses.
Those inhuman beings.
Tonglan listened to everyone's words and felt very comfortable.
It was so much fun teasing these people, which I never had the opportunity to do in the past.
Ning Changqing walked to Tonglan and sat down, said with a smile, "Today we really opened our eyes!"
After hearing this, Tonglan was a little hesitant about how to answer.
Ning Changqing didn't wait for her to answer, but just asked with a smile: "That old gentleman in the library is the one on the list?"
"You know?" Tong Lan thought for a while and said, "I have never lost anything in the school, thanks to him!"
"With him here, who can steal here?" Ning Changqing confirmed the conjecture in his heart and smiled wryly.
Sure enough, it was him.
Such a person actually works as a gatekeeper in Zizhu Academy...
He let out a long breath, and said again: "What have you all learned?"
"Chinese, Mathematics, Chemistry, Physics!" Tong Lan counted four kinds with her fingers.
There are many more aspects involved in the library, such as sociology, psychology, architecture, poetry, medicine, education, materials, agriculture, philosophy, law, manufacturing, economics... too many.
Thinking about it this way, Tonglan felt that the academic courses were not important again.
If you want to learn everything... even those perverts with swords on their backs can't do it!
Ning Changqing became interested and asked, "What are these types? Can you tell me in detail? This old man is very interested."
Tonglan raised her eyebrows, a little impatient.
But seeing that these people have brought so much fun to him, he lowered his brows and said in a calm voice: "Chinese is literacy, and mathematics is arithmetic. You also have to learn "Suan Jing"? The Bible is almost the same.
As for physics, it refers to various natural phenomena, material structures, material interactions, and laws of material motion in the world. "
Ning Changqing interrupted Tonglan and asked: "The substance you mentioned..."
"Everything between heaven and earth is intangible, as long as it really exists, it is in it.
Whether it is the soil, stones, trees, flowers and plants, birds and animals, as well as the air to breathe, the clouds and lightning in the sky, and the ice and snow on the peaks, they are all in it. "
Ning Changqing listened to the other party's words, his eyes showed surprise.
The students around who were attracted by this conversation couldn't help but ask, "Isn't this the Great Dao of Heaven and Earth?"
"That's what Ya Gui said back then." Tong Lan thought about it carefully, "That's also true."
In the eyes of others, it is the Great Dao of Heaven and Earth, but in the eyes of the students of Zizhu Academy, it is subdivided into different things.
There was no sound.
Learn the avenue between heaven and earth
"It's not as bad as you think." Tonglan was so thin-skinned that she explained more or less: "For example, why do the fruits on the tree fall? They don't fall into the sky? They fall vertically?"
"Because the earth is below?" Someone asked subconsciously.
"Then why did it fall down?" Tonglan asked back.
Everyone: "..."
This is a natural question that few people really think about.
"Why?"
"That's what we learned." Tong Lan said flatly, without any intention of explaining to everyone.
This question seemed very simple to her, but everyone in the academy began to scratch their heads. Why? In the past, no one would have thought about it when they asked about it, but now someone mentioned it, but half-spoken, as if tickling his heart with a feather.
"Little friend, this old man is also very curious, and I hope you will give me some advice!" Ning Changqing couldn't help but said.
Only then did Tonglan explain: "The earth has gravitational force! There is a gravitational force between all objects in this world. This is one of the fundamental forces in the world."
When everyone heard the words "one of the few fundamental forces in the world", they suddenly became confused.
Even the people who chatted stopped chatting, and all gathered behind Tonglan to listen to her.
"Since any object in the world has gravitational force, why is it not attracted to the tree, but falls to the ground?" Xue Yuanpei asked with a cold face. Although he didn't quite understand it, he immediately found the flaw in Tonglan's words.
"The magnitude of gravity is related to mass. The earth has the largest mass, so it will fall to the earth." Tonglan thought about it but did not say that the world is a sphere. After all, this is just what the book said, only the earth has the greatest mass and therefore the greatest gravitational force.
Seeing that everyone still didn't understand, Tong Lan asked, "Why does the world revolve around the sun?"
Everyone in the academy immediately became suspicious: "Isn't the sun rising in the east and setting in the west?"
Tonglan was dumbfounded for a moment, she suddenly found that there were many things that these people couldn't explain.
If you want to explain, three days and three nights are not enough.
In the end, I gave up with some headaches: "If you have studied physics, you will know it. It is too troublesome for me to explain this thing to you."
I don't know who suddenly said: "You are not bluffing us, are you? Otherwise, why can't you explain it?"
There was a moment of silence in the arena.
Tonglan's face turned cold in an instant, and she jumped into the air in a flash, looking for the place where she spoke just now, and wanted to step on it.
Girl, I explained it to you with good intentions, but you still question me
"Miss Tong calmed down, it was just an unintentional remark." Cao Gui barely kept up with Tong Lan's speed, and stood in front of Tong Lan, cupping his fists and smiling wryly.
"Originally... I can't explain it myself..." the scholar who had just spoken said in a low voice again, his tone was very unconvinced.
Tonglan's face suddenly turned livid.
"It's because you are too ignorant, it takes a lot of time to explain to you!" Tong Lan said in a contemptuous tone with anger in her heart.
Now many students of Xiaojiang Academy also showed angry faces.
Xiaojiang Academy is one of the top five academies in Izumo, and they are the best among the academies. Where can they not be treated with courtesy
You dismiss everyone as ignorant in one sentence, but you can't explain why, how can you convince everyone? How not to be angry
"Come and hear it, are we ignorant, or are you lying!"
"I don't have much knowledge, but my temper is not small."
Hearing everyone's words, Tong Lan felt a wave of anger almost burst out of her heart.
Since childhood, who ever questioned himself
What's more, I still told them out of good intentions, otherwise I wouldn't bother to talk to them.
Unexpectedly, it was questioned by them as nonsense.
Tonglan's delicate little face was livid, and she was about to explode with anger, her hair was flying up.
"Shut up!" Ning Changqing shouted in a deep voice.
He clasped his fists at Tong Lan again and said, "Little friend, at an old age, you are only half a foot away from entering the coffin, so you can see everything. But these students are young people, full of vigor, if they offend you , please don’t blame me, my friend.”
Then the voice changed: "However, if you don't explain, these disciples may not be convinced, and think that you are lying, not only affecting you, but also affecting Prince Zhao's reputation."
Tonglan's chest heaved a few times, and she glared fiercely at the crowd.
He was so angry that he had to suppress his anger.
At the same time, I also know that if I don't explain to everyone, I am afraid that gossip will really spread about what happened to Zizhu Academy.
But it is not easy to explain.
Among other things, just because the world is round, you have to argue with them for a long time.
After thinking about it a few times, I said in a worried tone: "Have you ever seen a ship go out to sea and return? If you haven't even seen this, then it's useless for me to explain more to you."
"I have seen it." Someone said immediately.
Izumo is close to the sea, and half of the twenty people have seen it.
"When the ship goes out to sea, what is the last thing you see? When the ship returns, what is the first thing you see?"
"Mast!" Many students immediately said after thinking about it.
"That's right!" Tong Lan raised her head, looking down at everyone.
"Why are the red moon and yellow moon sometimes round and sometimes arc-shaped? Have you noticed?"
"Does this have anything to do with what you just said?" Although everyone didn't know the reason, they immediately raised objections.
"Naturally." Tonglan said proudly.
"You guys always know about the twilight moon, right?" The twilight moon is the scene when two moons partly overlap each other, usually once every ten years or so.
And when the moon is dim, the two moons overlap, and what you see is also the moon with a missing corner.
And because of the time period, the process is very clear.
Comparing it with the moon we usually see, it is already very obvious.
When Ning Changqing heard Tonglan mentioning the faint moon, he suddenly remembered an anecdote he had heard, looked up at Tonglan and asked: "You mean, this world is round?"
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