"Mo Zhong, come here!"
Li Zexuan, who wanted to play a new game, didn't move immediately. Instead, he called out to the dumbfounded Mo Zhong next to him.
"Here!"
Mo Zhong quickly recovered from his shock and ran to Li Zexuan's side. He bent his back and looked like he was all ears.
Li Zexuan leaned over to Mo Zhong's ear and whispered something. Then...
"Huh? Yamachō! This... You're not joking with me, right? "
Mo Zhong's eyes widened. His mouth was open so wide that an egg could be stuffed in.
"Who has the time to joke with you? Hurry up and go! "
Li Zexuan said in annoyance.
Everyone was a little confused when they saw this. They didn't know what Li Zexuan had instructed to make Mo Zhong show such an expression.
However, their doubts didn't last long. About half a cup of tea's time after Mo Zhong ran out, the crowd noticed something unusual, and cries of surprise rose from all directions!
Mo Zhong had actually run up to the roof and started to peel off the tiles!
There was a saying that went, "If you don't teach me a lesson for three days, I'll peel the tiles off the roof." The teachers and students in the audience couldn't help but wonder in their hearts. Did Mo Zhong lose his mind? He actually dared to go up to the roof and peel off the tiles?
"Yamachō, do you think it's okay to peel off this tile?"
Mo Zhong, who was on the roof, leaned over and shouted to the people below.
Hum ~!
It was only then that the students and teachers in the auditorium understood that Li Zexuan had instructed Mo Zhong to peel the tiles off the roof! They couldn't figure out what Li Zexuan meant by this and couldn't help but discuss it among themselves below.
"No! Move it a little further back! "
Li Zexuan glanced sideways and then replied, "Yes.
Mo Zhong, who was on the roof, had no choice but to cover the tile that had been peeled off. He then peeled off another tile and asked, "Yamachō, is this okay?"
"It's okay!"
"Then... then I'll go down!"
"Stay up there first. I'll need you later!"
The strange conversation between the two shocked everyone. Fortunately, after saying this, Li Zexuan finally became "normal". He took out a piece of bright triangular glass from a box on the podium and said to the people in the audience, "This is the first time I've heard of your name. I've heard of your name before.
"Does anyone know what color the sun is?"
(The Academy's first volume of Physics textbooks didn't cover optics.)
"Do you still need to ask? Of course, the sun is white! "
Cheng Chumo couldn't help but laugh.
"It's obviously red! The sun in the morning, how can it be white? "
Another student retorted immediately.
"What red? It's obviously yellow. Can't you tell the difference between red and yellow? "
After a while, there was an uproar. Li Zexuan coughed softly and said, "Okay, quiet down! There's no need to argue. Next, I'll show you what color the sun is! "
The students immediately quieted down. They held their breath and stared intently at the podium!
Li Zexuan first set up a stand on the podium with white paper pasted between the stands (acting as a white screen). Then, he faced the sun with the triangular glass (at this time, everyone understood why Mo Zhong went to the roof to remove the tiles. It was to let the sun in). A magical scene appeared!
"Okay, do you see what it is?"
Li Zexuan pointed at the white screen on the podium and laughed.
"Wow!"
The teachers and students were in an uproar. They actually saw a seven-colored light spot appear on the white paper. Wasn't that a rainbow?
"A rainbow? It's not raining. How can there be a rainbow? "
"Yes! It's still sunny today! "
"It's a miracle! Yamachō can actually create a rainbow? "
"No! Yamachō must be trying to tell us that the sun is seven-colored! "
"How is that possible? Why is the sun white when I see it? "
"What white? It's obviously yellow! "
"It's red!"
The students were amazed for a while. Then, a few of them began to argue again. Li Zexuan said, "Quiet down! Through this little game, I want to tell you that many times, what you see with your own eyes may not be true! Take sunlight for example. Some of you think it's white, red, yellow, or even transparent. But what about the truth? He was a mixture of seven different colors!
Another example, have you ever thought about what kind of substance light is? Is it as illusory as sound, or is it like the rice and flour that we eat? Is it a substance that exists? "
When everyone heard this, they all fell into deep thought.
After a while, a skinny student stood up and asked, "My name is Li Yan. I'm Yamachō. What is light?"
Li Yan, this is Li Chunfeng's son!
Li Zexuan's heart skipped a beat. He had seen Li Yan on the entrance exam's report card and knew that this kid was Li Chunfeng's son. However, this was the first time he had met Li Yan.
But …
"Hehe! That's a good question! But let's put this question aside for now. Next, I'll play a little game with you! "
It was Li Zexuan who revealed a mysterious smile again, and then said with a "cheap" tone.
Li Yan: "̄ ̄ ̄ ̄ …"
Even as a Taoist, Li Yan, who had been cultivating his body and mind for many years, could not help but jump up and down at this moment. He opened his mouth, wanting to … wanting to curse, but after thinking about it, he sat back down.
If he was like this, the rest of the students would be even worse!
"Yamachō, please explain it to us first!"
"That's right! Explain it clearly before we play the game! "
"F * ck, this again! You only know how to play games! Play your sister's game! "(This was what Li Tai, the King of Younger Sisters, muttered in private)
Li Zexuan's face turned serious as he gestured with his hand and said, "Quiet down! A good meal isn't afraid of being late. Haste makes waste. What's the hurry? All of you, take a good look and learn! "
Seeing that Li Zexuan was about to explode, the students wisely shut their mouths.
"Mo Yun, pass this to Mo Zhong!"
Li Zexuan took out a wooden board (there was a small hole in the board) and passed it to Mo Yun as he ordered.
Then, he ordered the students to close all the curtains (there were glass windows in this hall). At this time, Mo Yun had already brought the wooden board to the roof and passed it to Mo Zhong.
"Mo Zhong, use the wooden board to cover the hole in the roof!"
Li Zexuan ordered again.
Mo Zhong did as he was told. Suddenly, the entire hall was plunged into darkness. Only Li Zexuan's side had a very thin beam of light, which looked very conspicuous.
Then, everyone heard Li Zexuan say, "I'm holding a piece of paper in my hand now. There are two narrow slits on the paper that are very close to each other. I'll put the slits under the beam of light later. See what happens!"
The students and teachers were all puzzled. 'What kind of phenomenon can there be? Isn't it just one beam of light turning into two beams of light? '
However, reality once again slapped everyone in the face. In the dark, there were bright and dark stripes on the white screen. There were more than two bright stripes! However, everyone clearly saw that the paper that Li Zexuan held above only had two beams of light! Why are there so many stripes below? '
.....
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