"Mo Zhong, come here!"

Li Zexuan, who was about to play a new game, did not act immediately, but instead aroused the stunned Mo Zhong next to him.

"In!"

Mo Zhong hurriedly recovered from the shock, ran to Li Zexuan's side, hunched his waist, and made a deferential gesture.

I saw Li Zexuan leaning into Mo Zhong's ear, whispering something, and then ......

"Huh? Mountain Chief! This... You're not kidding me, are you? ”

Mo Zhong's eyes widened, and his mouth was open enough to stuff an egg.

"Who has time to joke with you? Don't go yet! ”

Li Zexuan didn't have a good airway.

Everyone in the audience was a little stunned when they saw this, they didn't know what Li Zexuan ordered, and they actually made Mo Zhong have such an expression.

However, their doubts did not last long, after Mo Zhong ran out, about half a cup of tea passed, everyone noticed the abnormal movement, and immediately exclaimed!

Because Mo Zhong actually ran to the roof to uncover the tiles!

There is a good saying, if you don't fight for three days, you go to the room to uncover the tiles, and the teachers and students in the audience can't help but wonder in their hearts: What kind of madness is Mo Zhong getting? How dare you run to the roof to uncover the tiles?

"Mountain Chief, do you think it's okay to remove this piece?"

The ink bell on the roof shouted down from his stomach.

"Buzz~!"

The students and teachers in the auditorium realized that Li Zexuan had just ordered Mo Zhong to go to the room to uncover the tiles! They couldn't understand what Li Zexuan's move meant, and couldn't help but talk about it below.

"No! A little further back! ”

I saw Li Zexuan glance sideways, and then replied.

The ink bell on the roof had no choice but to cover the uncovered tiles, and then opened another one, and asked, "Mountain Chief, is this okay?" ”

"That's it!"

"That's... Then I'll go down! ”

"Stay on it for now, I'll need you later!"

The strange conversation between these two people shocked everyone's attention, but after saying this, Li Zexuan finally became "normal", he turned out a bright triangular glass from a box on the lectern, and then said to everyone in the audience:

"Does anyone know what color sunlight is?"

(Regarding optics, the first volume of the academy's "Physics" textbook does not talk about it.)

"Do you need to ask? The sunlight must be white! ”

As soon as the words fell, Cheng Chumo couldn't help laughing.

"It's red! The morning sun is so red, how can it be white? ”

Another student immediately retorted.

"What red? It's yellow, can't you even tell the difference between red and yellow? ”

After a while, there was a mess in the audience, Li Zexuan coughed lightly twice, and said, "Okay, it's all quiet!" Without further ado, I'm going to show you what color the sunlight is! ”

The students immediately fell silent, and they all held their breath and looked intently at the podium!

Li Zexuan first erected a stand on the podium, and white paper was pasted between the stands (as a white screen), and then he used the triangular glass side to face the sun (at this time, everyone understood what the ink clock ran to the roof to uncover the tiles, it turned out to be to bring the sun in), and a magical scene appeared!

"Okay, do you see what?"

Li Zexuan pointed to the white screen on the podium and said with a smile.

"Wow~!"

The teachers and students were in an uproar, and they actually saw a colorful spot of light appear on the white paper, isn't this a rainbow?

"Rainbow? It's not raining, where does the rainbow come from? ”

"Yes! Is it still sunny this day? ”

"What a miracle! Can a mountain chief create a rainbow? ”

"That's not right! The mountain chief must be trying to tell us that the sunlight is seven colors! ”

"How is that possible? Why is the sunlight I see white? ”

"What white? It's yellow! ”

"Red!"

The students were amazed for a while, and a few of them began to argue again, and Li Zexuan spoke: "It's all quiet!" Through this little game, I just want to tell you that many times what you see with your own eyes may not be true! For example, sunlight, some of you think it's white, red, yellow, or transparent, but in reality? He is made up of seven colors mixed together!

For example, have you ever wondered what kind of substance light is? Is it as ethereal as a sound, or is it a real substance like the rice and flour we eat? ”

When everyone heard this, they fell into deep thought.

After a while, a relatively thin and young-looking student stood up and asked, "Student Li Yan, please ask the mountain chief, what is light?" ”

Li Yan, this is Li Chunfeng's son!

Li Zexuan's heart moved, he had seen Li Yan on the transcript of the entrance exam, and he also knew that this kid was Li Chunfeng's son, but this was the first time he had seen Li Yan.

Merely.....

"Huh! That's a good question! But let's put that aside for now, and I'll take you through a little game! ”

But it was Li Zexuan who smiled again, and then said "cheaply".

Li Yan: "̄へ ̄......"

Even Li Yan, who is a Taoist, has been cultivating himself for many years and is quiet and inactive, he can't help but jump at this moment, he opened his mouth and thought... I wanted to explode a few foul words, but I thought about it and sat back.

Even if he is like this, not to mention the rest of the students!

"Mountain Chief, you can make it clear to us first!"

"That's right! Let's make the game after that! ”

"Cao, again! Just know how to make games! Be your sister's game! (This is the sister Wang Li Tai muttering indignantly in private)

Li Zexuan's face turned pale, pressed down his hand, and said, "It's all quiet!" A good meal is not afraid of being late, and if you can't eat hot tofu in a hurry, what are you anxious about? Read it all for me and learn it seriously! ”

Seeing that Li Zexuan was about to go crazy, the students closed their mouths very wisely.

"Mo Yun, take this thing to Mo Zhong!"

At this time, Li Zexuan took out a wooden board (there was a small hole in the wooden board), handed the wooden board to Mo Yun, and commanded.

Then, he instructed the students to close all the curtains (this auditorium has glass windows), and by this time Mo Yun had already brought the wooden planks to the roof and handed them to Mo Zhong.

"Mo Zhong, cover the hole in the roof with a wooden plank!"

Li Zexuan commanded again.

Mo Zhong did as he said, and suddenly, the entire auditorium fell into darkness, only Li Zexuan had an extremely thin beam of light, which looked extremely conspicuous.

Immediately afterwards, everyone heard Li Zexuan say: "I have a piece of paper in my hand now, and there are two slits on the paper that are very close to each other, and I will put this slit under the beam of light for a while, and you will see what phenomenon will be born!" ”

Students and teachers alike wondered: What could happen? Isn't it just one beam of light becoming two beams of light?

However, reality slapped everyone in the face at once, only to see a light and dark stripe appear on the white screen in the dark, and there were more than two bright stripes! But everyone clearly saw the paper that Li Zexuan held up on it, and only two beams of light were separated! Why are there so many stripes underneath?

...................... ()

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