Nothing?

Why does this sound so much like a trick?

Having said that, everything Li Zexuan said in class today made the students feel like they were playing tricks!

The needle casting and counting the ancestral rate, the glass dividing the sun, the double seam becoming striped, and the iron box just now sent a message, which made them feel as if they were in a dream, which was very unreal.

At this moment, Li Zexuan stretched the line connected in the iron box into the basin (this basin is not made of wood, but made of glass), and then filled the basin with water with two thin glass pipes, held down the nozzle, and put them upside down into the basin.

Then, Li Zexuan inserted two enameled wires into two glass tubes.

"Everyone, take a closer look, something interesting will happen in a while!"

Li Zexuan raised his head and smiled, then he called Mo Zhong and whispered a few words, Mo Zhong led the way out, Li Zexuan pressed a button on the iron box next to him, and suddenly, the students in the auditorium found that the enameled wire in the glass tube began to bubble.

"Hey? Is this a bubble blowing show for us? ”

Seeing this, Cheng Chu was happy and whispered at the bottom.

The ancients would also blow bubbles, soak soap horn in water, and then cut a piece of western bamboo, you can play with blowing bubbles, but soaphorn is too expensive, and few parents will let their bear children be so violent, but well, Cheng Chumo played a lot when he was a child.

After about a dozen breaths, the water in one glass pipe in the water basin has been completely emptied (the water in this tube is hydrogen), but there is still half of the water in the other glass pipe, Li Zexuan ignored it, let the gas in the glass pipe overflow, and when the water in the other glass pipe was also emptied, Li Zexuan pressed the button on the iron box again, and the enameled wire in the water basin stopped bubbling.

"Mountain chief, this is electrolyzed water~?"

A man in the audience stood up and asked.

It was Wang Ji, the first volume of the academy's "Chemistry" textbook had the experiment of electrolysis of water, but he had only read the text description in the book, not the real demonstration, let alone the actual one, because he didn't know where to get electricity! So it wasn't until this time that he felt a little familiar.

"Mr. Wang's eyesight! This is the electrolyzed water experiment! ”

Li Zexuan praised it, and then said to the students: "The gas contained in the two glass pipes in my hand now is the one I used to use just now, which is different from the air you breathe every day!" ”

"Cut, what's the difference?"

The students shook their heads in disbelief, in their opinion, the two glass pipes in Li Zexuan's hand did not have any color in them, but they were filled with two tubes of air? What could be so strange?

Li Zexuan didn't make much excuses, it just so happened that at this time, Mo Zhong came in with a brazier, and everywhere he passed, the students all avoided it, because it was hot!

Li Zexuan was not too hot, he stepped forward to wrap his hand with a wet cloth, pulled out a thin red wire from the brazier, and then reached into the basin with his other hand, clasped the glass pipe filled with gas with his thumb, took it out, and said: "The next time is the time to witness the miracle!" ”

When the students heard this, their eyes widened and they looked intently at this side.

I saw Li Zexuan's right hand loosen the thumb blocking the mouth of the glass pipe, and his left hand quickly stretched the red-hot wire into it.

"呲呲~!"

The reddish wire suddenly burned in the glass pipe, and emitted a bright fire!

"Damn, iron can burn? Am I right? ”

Cheng Chumo shouted.

The rest of the students were also shocked and found it incredible.

After the fire was extinguished, Li Zexuan smiled a little mischievously, and then went to take out another glass tube, and in his left hand was a small burning wooden stick handed by Mo Zhong, the students didn't know why, but the teachers of the chemistry department of the college all buried their heads and covered their ears.

"Bang~!"

The students saw Li Zexuan put the wooden stick with the flame on the mouth of the glass pipe, and then they heard an explosion that was not particularly loud, but definitely not small.

"Holy!"

Except for the chemistry teachers, who had been prepared for a long time, everyone in the auditorium was taken aback.

Li Zexuan put down the test tube, clapped his hands, and after everyone quieted down, he said: "Now do you believe that I have turned the water into two different gases~?" ”

The students were speechless, and they really believed in your evil spirit, and they didn't know to tell us in advance before the explosion of the play.

"It turns out that the electrolyzed water experiment recorded in the textbook is actually true? The old man is now convinced, the mountain chief is really a natural asset! ”

Wang Ji sighed with emotion.

Li Zexuan smiled and said "Mr. Wang's false praise", and then he gave Mo Zhong a look, who quickly nodded and turned around to go out, and after a while, Mo Zhong moved in a half-person tall thing, which was also covered with a red cloth. Mo Zhong carried the big treasure to the lectern and retreated.

Li Zexuan stood on the podium and said downward: "Okay, that's all for the little games I will play for you today, and then I will show you some good things!" ”

With that, he lifted the red cloth, and a big blue ball, supported by the stand, stood on the lectern, and immediately appeared in front of everyone.

"What is this? It's two laps bigger than football, huh? ”

"You kid knows football!"

The students were discussing, but Xiao Deyan from the Geography Department stood up tremblingly and said, "Mountain Chief, this, this is..."

Li Zexuan nodded and said, "Mr. Xiao, that's right!" This is the earth, and it should be a model modeled after the earth! I call it a globe! ”

After that, he looked at the students again and said loudly: "Students, the ground we are stepping on under our feet is not flat, and the saying that the sky is round is nonsense!" We all live on such a big ball, specifically, your husband will tell you about it later! From now on, I will place this globe in front of Guanghua Tower, every time you pass by, you must take a good look at it, see the world we are in, this is definitely a new world that you have never known before!

Also, the little games I did with you before are all very meaningful, don't ask me about the specific principles, I hope that when you leave Yanhuang Academy, you will be able to fully understand these problems, and it will not be in vain that I and the gentlemen of the academy have worked hard for you! Alright, class! Let's all go and rest! That's the end of today's lesson! ”

"Papapapa~!"

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! And this class really gave them too much shock, which made them feel very happy in their hearts, glad that they chose Yanhuang Academy in the first place! Otherwise, where would they go to learn such advanced knowledge!

…………………… ()

Please remember that the first domain name of this book is:. Mobile version reading URL: