Create something out of nothing?
Why does this sound so much like a magic trick?
But having said that, everything Li Zexuan taught in class today made the students feel like they were doing magic!
Throwing a needle to calculate the ancestral rate, glass dividing sunlight, double slits turning into stripes, and the iron box just sending a message made them feel as if they were in a dream, which was very unreal.
At this moment, Li Zexuan stretched the wire from the iron box into the basin (the basin was not made of wood, but of glass), then filled the two glass thin tubes with water in the basin, and pressed Hold the mouth of the pipe and place it upside down in the basin.
Then, Li Zexuan inserted two enameled wires into two glazed tubes.
"Everyone, watch carefully, some interesting phenomena will happen soon!"
Li Zexuan raised his head and smiled. Then he called Mo Zhong and whispered a few words. Mo Zhong took the order and went out. Li Zexuan pressed a button on the iron box next to him. Suddenly, the students in the auditorium discovered Liuli. The enameled wire inside the tube actually started to bubble.
"Hey? Chief, are you blowing bubbles for our show?"
Cheng Chumo was delighted when he saw this and whispered from below.
The ancients also knew how to blow bubbles by soaking soap locust in water and then cutting a thin piece of bamboo to blow bubbles. However, soap locust is too expensive and not many parents would let their naughty children waste their natural resources like this. But, Cheng Chumo I did play a lot when I was a kid.
About ten breaths later, all the water in a glass tube in the basin had been emptied (the tube contained hydrogen), but there was still half of the water in the other glass tube. Li Zexuan ignored it. , allowing the gas in the glass tube to overflow, and when all the water in the other glass tube was emptied, Li Zexuan pressed the button on the iron box again, and the enameled wire in the basin stopped bubbling.
"Shan Zhang, is this electrolyzed water~?"
Someone stood up and asked.
It was Wang Ji. The first volume of the "Chemistry" textbook in the academy contained the experiment of electrolyzing water, but he had only read the description in the book, and had not seen a live demonstration, nor had he done it himself, because he did not know the experiment. Where can I get electricity? So it wasn't until this moment that he felt familiar.
"Mr. Wang has great eyesight! This is the electrolyzed water experiment!"
Li Zexuan praised it, and then said to the students: "The two glass tubes in my hands now contain gas that I just made with water. This is different from the air you breathe every day!"
"Tch, what can be different?"
The students shook their heads in disbelief. In their opinion, the two glass tubes Li Zexuan held in his hand had no color at all. Aren't they just filled with two tubes of air? What could be surprising?
Li Zexuan didn't make any excuses. It happened that Mo Zhong came in with a brazier. Wherever he passed, the students all gave way because it was hot!
Li Zexuan didn't dislike the heat. He stepped forward and wrapped his left hand with a wet cloth, pulled out a thin red iron wire from the brazier, then put his right hand into the basin, clasped the glass tube filled with gas with his thumb, and inserted it into the water basin. He took it out and said, "Then it's time to witness the miracle!"
When the students heard this, their eyes widened and they looked here intently.
I saw Li Zexuan's right hand loosening his thumb blocking the mouth of the glass pipe, and his left hand quickly stretched the red-hot iron wire in.
"呲呲~!"
The red wire immediately burned in the glass tube and gave off a bright fire light!
"Holy shit, iron can burn? Am I right?"
Cheng Chumo shouted.
The other students were also shocked and felt incredible.
After the fire went out, Li Zexuan smiled mischievously, then went to take out the other glass tube, and took the burning stick from Mo Zhong with his left hand. The students didn't know why, but the Chemistry Department of the Academy The teachers all buried their heads and covered their ears in unison.
"Bang~!"
The students saw Li Zexuan put the flaming wooden stick at the mouth of the glass tube, and then they heard an explosion that was not particularly loud, but definitely not small.
"Holy shit!"
Except for the Chemistry Department teachers who had been prepared, everyone in the auditorium was shocked.
Li Zexuan put down the test tube, clapped his hands, and after everyone calmed down, he said: "Now do you believe that I turned water into two different gases~?"
The students were speechless, thinking that they really believed you, and they didn't know to tell us in advance before they exploded.
"So the electrolyzed water experiment recorded in the textbook is actually true? Now I am convinced. The mountain leader is really a gift from heaven!"
Wang Ji sighed with emotion.
Li Zexuan smiled and said "Mr. Wang's ridiculous compliment", then he winked at Mo Zhong, who nodded quickly and turned around to go out. After a while, Mo Zhong brought in something half a person tall with something on it. Covered with red cloth. Mo Zhong moved this big treasure to the lectern and stepped back.
Li Zexuan stood on the podium and said downwards: "Okay, that's all the little games I will show you today. Next, I will show you something good!"
After that, he lifted up the red cloth, and a big blue ball stood on the lectern with the support of a bracket, and it was immediately displayed in front of everyone.
"What is this? It's two circles bigger than a football?"
"You kid just knows football!"
The students were talking a lot, but Xiao Deyan from the Department of Geography stood up tremblingly and said: "Shan Chief, this, this is..."
Li Zexuan nodded and said: "Mr. Xiao, that's right! This is the earth. It should be said that it is a model made after the earth! I call it a globe!"
After that, he looked at the students again and said loudly: "Students, the earth we step on is not flat. The theory that the sky is round and the earth is round is nonsense! We all live in such a big ball. Above, your husband will tell you the details in the future! From now on, I will place this globe in front of Guanghua Building. Every time you pass by, you must take a good look at it and take a look at the world we live in. This It is definitely a new world that you have never known before!
Also, those little games I played with you earlier all have profound meanings. Don’t ask me about the specific principles. I hope that by the time you graduate from Yanhuang Academy, you will be able to fully understand these issues. It will not be in vain. The gentlemen of the academy and I have worked so hard for you! Okay, get out of class is over! Everyone, go and have a rest! This concludes today’s class! "
"Pah pah pah pah~!"
At this moment, all the teachers and students couldn't help but stand up and applaud Li Zexuan. Today's class is destined to go down in history! Moreover, this class really shocked them too much, making them extremely happy that they chose Yanhuang Academy in the first place! Otherwise, where would they learn such advanced knowledge?
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