"Okay, okay, okay ~! I won't say anything, I won't say anything. Both of you are innocent, okay? "
Li Zexuan couldn't be bothered with Yan Shaoning anymore. He thought to himself, This guy is really single based on his strength. What can I do?
"But how long do you two plan to do this? It's going to be dark soon! "
Li Zexuan looked at the sky and couldn't help but ask.
"Uh …"
Mo Lingwei looked up, then threw the ice cubes in her hand to Yan Shaoning and muttered, "I'm not playing anymore! I'm not playing anymore! Let's talk about it tomorrow! It's really strange, yesterday's situation can't be replicated ~! "
Suddenly receiving another ice cube, Yan Shaoning almost jumped up from the cold. When he heard Mo Lingwei say that they weren't playing today, he quickly threw away the two ice cubes in his hand and rubbed his frozen hands.
Li Zexuan couldn't help but ask curiously, "Yesterday's situation ~? What kind of situation did the two of you encounter yesterday ~? Tell me about it. Maybe I can help you guys a little! "
Mo Lingwei looked at Li Zexuan suspiciously and thought for a while before saying, "Yamachō, let's make it clear first. I invented this thing, you're only helping me perfect it. When the time comes, you can't steal my credit ~!"
Li Zexuan didn't know whether to laugh or cry, "What credit can I steal from you ~? Sigh, if you don't want to say it, then forget it. I'm going home to rest ~! "
"Hey, hey, hey! Yamachō, don't go yet! I'll say it, I'll say it! "
Mo Lingwei was anxious. The little girl quickly rushed in front of Li Zexuan and blocked his way, then said,
"I … Yesterday, when I was demonstrating to Little Ningzi how to make a fire with ice cubes, I accidentally discovered that when two convex ice cubes are separated by a certain distance, you can see things in the distance through them. It's just like the clairvoyance in the novels. It's really magical ~!
Unfortunately, Little Ningzi accidentally dropped the ice cubes on the ground and broke it. As a result … As a result, we can't restore the magical phenomenon from before! That's what we were doing just now! "
The more Li Zexuan listened, the more surprised he was. According to Mo Lingwei, the two of them might have accidentally gotten a telescope! He pinched his chin and thought for a moment.
"Ink Girl, the reason why you can't recover the previous miraculous phenomenon is mainly because the distance between the two ice cubes is wrong!"
Mo Lingwei retorted, "Impossible! The distance between the two protruding ice cubes yesterday is about the same as the distance we placed them today, right? "
Li Zexuan smiled and explained, "Even if your distance today is exactly the same as yesterday, it's impossible for yesterday's miraculous phenomenon to happen! Actually, Ink Girl, you've overlooked a problem from the beginning to the end. The protrusion of the ice cubes you used today might be different from the ice cubes you used yesterday! "
Mo Lingwei nodded. "Hmm, that's possible. After all, this is my first time making something like this. How can I make it exactly the same every time? But even if it's different, what's the difference ~? "
Li Zexuan smiled and pointed to the broken ice mirror on the ground. He said, "Of course there's an effect! Ink Girl, you used this ice cubes to start a fire yesterday. Do you know how it works ~? "
"I … I … Of course … I don't know!"
Mo Lingwei opened her mouth and said embarrassedly, "I saw this method in the handwritten notes of the Mo family's ancestor. It said that using this kind of protruding ice cubes, you can turn the sunlight into a small dot. Then the small dot is very hot and can ignite something."
Li Zexuan suddenly understood. He roughly knew from Mo Huai that Mo Zi was very knowledgeable about geometric optics. He could even make a small hole image. In comparison, using a convex lens to condense light was child's play. Li Zexuan shook his head and said to Mo Lingwei and Yan Shaoning, who was listening with great interest, "Come with me.
I'll tell you how to make this legendary clairvoyance. I'll also give you a task by the way ~! "
After saying that, Li Zexuan turned around and went downstairs without waiting for their agreement.
Mo Lingwei and Yan Shaoning were stunned when they heard this. Then, they were pleasantly surprised. The two looked at each other and quickly followed.
"Hey! Xiaoxuan, do you mean that we can make a clairvoyance? "
"Hey! Yamachō, wait! "
…
After a while, Li Zexuan came to the fourth floor. He then passed through the central office area of the twin towers and entered the teaching area. He randomly found a classroom and pushed the door open. Mo Lingwei and Yan Shaoning had already followed him.
The two saw that Li Zexuan seemed to have the intention of giving a lecture, so they found two seats in the first row and sat down. Mo Lingwei secretly glanced at the neatly arranged tables and stools, the tall podium, and the smooth blackboard in the classroom. She felt very curious.
"Ink Girl, let me first explain to you the principle of making fire from ice!"
Li Zexuan first drew a convex lens on the blackboard, then looked at Mo Lingwei and said, "The external structure of this ice is protruding outwards. Let's call this structure a convex lens for the time being …"
One classroom, two students, and one teacher. The first class of Yanhuang College quietly began. However, no one would have thought that such an inconspicuous class would open the prelude to the development of ancient optics in China!
"Ink Girl, do you understand the principle of a convex lens now?"
Li Zexuan never expected Mo Lingwei to be such a thorough person. If you told her that a convex lens converges light, she would ask you why. Well, you would draw a light path diagram and explain to her why a convex lens converges light. In the process, it would inevitably involve the problem of the refractive index of different media. In the end, she would ask what the refractive index was and how the refractive index was obtained …
Therefore, this small piece of common knowledge in physics ended up taking half an hour to explain. Fortunately, Li Zexuan's previous life's major included a lot of optics, so his theoretical foundation was quite solid. Otherwise, he might really have been stumped by this little girl's questions!
However, it was gratifying to see that the two "students", Mo Lingwei and Yan Shaoning, were very attentive.
"Okay, I understand ~! Yamachō, continue to tell us about the clairvoyance! "
Mo Lingwei rubbed her chin and smiled at Li Zexuan.
Yan Shaoning also nodded and said, "Okay, I understand too. Xiao Xuan, quickly continue!"
Although Li Zexuan was an otaku in his previous life, it didn't mean that his ability to express himself was bad. On the contrary, in serious conversations, his ability to express himself had always been very good. His thoughts were especially clear. Perhaps it was because of this that Mo Lingwei and Yan Shaoning could quickly follow his train of thought.
"Okay, okay! Since you understand this, the next part will be very simple ~! "
…
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