The advantage of a time traveler is that knowledge that transcends thousands of years can often create many miracles. Such miracles were as incredible as miracles to ancient people.
Hearing that Li Qinzai was going to do a trick, Qiaoer came out of the yard and shouted a few times, and the news spread immediately.
Everyone in Zhuangzi knows that Li Qinzai's tricks are absolutely shocking miracles. The little bastards and villagers still remember the big firecracker that Li Qinzai built years ago. Those who were lucky enough to see it with their own eyes heard the loud bangs like thunder.
People still talk about it with pride.
Today I heard that Li Qinzai was going to perform tricks again. After the news spread, in the school at the south end of Zhuangzi, Li Sujie and a group of dandies rushed towards the other courtyard.
When the Imperial Academy students who didn't know the truth saw the dandies running away, they followed them regardless. Anyway, it would make the dandies flock to it, so even if it was a piece of shit, they would snatch it away.
Outside the Li Family Courtyard, crowds quickly surrounded the three floors inside and three floors outside.
Li Zhi in the backyard was also alarmed, and immediately ran out of the gate. Wang Changfu's sharp voice made the students startled, and they all took a few steps back and bowed.
Li Zhi easily occupied the best viewing position, with his hands folded on his abdomen, smiling as if listening to a cross talk, waiting for Li Qinzai to start.
Li Qinzai was undoubtedly the most handsome boy in the crowd. Seeing the dense crowd around him, Li Qinzai's cheeks twitched a few times and said with a wry smile: "I'm just making some new things, you don't have to do this. I will tell you the principle later. This is also part of the study of objects."
…”
Li Zhi smiled and said: "Jing Chu's new gadgets, which one is not shocking? Let's get started, I've been waiting for a long time."
Li Qinzai had no choice but to turn around and ask Liu Asi to find a large wooden barrel, a copper basin, and several kilograms of saltpeter.
Saltpeter is a raw material for making gunpowder. When Li Qinzai made firecrackers, he had a lot left at home.
Fill the wooden barrel halfway with water, and then throw the saltpeter in. The water in the wooden barrel reacts instantly, gurgling as if it is boiling.
The copper basin filled with drinking water floated on the surface of the wooden bucket of water with both hands, motionless.
Everyone gathered around him curiously, staring at the barrel without blinking.
Soon, an incredible scene happened. The water in the barrel quickly froze in a state visible to the naked eye. The clear water quickly turned into translucent ice cubes, and the drinking water in the copper basin placed on the surface of the barrel also froze.
Freezes quickly.
I don't know who took the lead and let out a scream of horror, and the crowd immediately exploded.
In the hot summer, witnessing a drop of water turn into ice is not only a miracle, it is simply a magic trick.
Li Sujie's face flushed, and she reached out her finger to touch the ice in the barrel without giving up. Then she quickly retracted it, with the veins on her neck pulsing, and shouted: "It's ice! It's really ice! Mr. used magic to turn water into water."
It’s turned into ice!”
Li Qinzai's old face darkened, and he didn't care that Li Sujie's biological father was standing beside him. He stretched out his hand and hit Li Sujie hard on the head: "You are ignorant and have no skills! If a phenomenon cannot be explained in the world, it is said to be a magic method.
What else do you need to learn?”
Li Zhi on the side was already dumbfounded and said: "Is this also due to Jingchu's knowledge?"
Although he was very similar to Li Sujie's stupid look, Li Qinzai did not dare to knock Li Zhi on the head, so he could only say: "Yes, everything in the world can change. If you know its laws and combine it with other things to react, everything can change into hundreds of thousands."
Things, millions of things.”
"This is another subject of my study, called 'chemistry'. As the name suggests, this is the study of the transformation of all things. The gunpowder I created is also a part of chemistry."
Li Zhi put his hand into the bucket and felt the biting coldness on his fingertips. He tapped the ice with his fingers, then took a deep breath and sighed: "Jingchu's talent always amazes me and amazes me."
Li Qinzai smiled, ordered someone to fetch an iron spoon, knocked it on the ice in the copper basin for a while, knocked off a small piece of ice, and stuffed it into Qiao'er's mouth.
Qiao'er held an ice cube in her mouth, and a cool and refreshing feeling spread from her mouth to her abdomen, making her smile happily.
Li Qinzai smiled and said: "Ice can relieve the heat, but not too much, as it will cause stomach upset."
Qiao'er nodded, but still greedily smacked the ice in her mouth.
Li Zhi also took a piece of ice and put it in his mouth, humming happily. The students next to him swarmed over and each took a piece of ice. Zhu Bajie swallowed it like a ginseng fruit.
After chewing a few pieces of ice, Li Zhi looked at Qiao'er happily sipping the ice cubes and Li Qinzai's doting eyes. Li Zhi suddenly became thoughtful.
"Today when I was drinking grape wine with you, there was a shortage of ice cubes. Why didn't you make one at that time? Qiao'er felt that the weather was getting hot, so your ice cubes came into being. Jingchu, what do you mean?"
Li Qinzai was startled and said without blinking: "I am worried about your humiliation. It was because your majesty drank the fine wine that you lacked ice, so I worked hard and came up with the method all afternoon. Your majesty must not misunderstand it."
Li Zhi said with a half-smile, "Isn't it because the buckwheat is too hot?"
"Of course not. This is my heartfelt tribute to His Majesty."
Li Zhi snorted and said, "I'll pretend to believe you... With ice cubes, I can drink grape wine."
Li Qinzai said seriously: "Your Majesty, don't forget your old illness. It is not suitable to drink alcohol or eat meat. Your Majesty has not been sick for more than half a year. If all the previous achievements are wasted because of the contents of this cup, wouldn't it be a disservice to the Tang Dynasty?"
Kunimoto?”
Li Zhi was startled, then smiled bitterly and sighed: "Jingchu, you are so disappointing!"
Although he was disappointed, Li Zhi still listened to Li Qinzai's words, hummed angrily, knocked a large piece of ice out of the copper basin, held it in his hand and sipped it, and returned to the backyard.
After Li Zhi left, Li Qinzai looked around at the students and said: "The way of clear calculation is not just addition, subtraction, multiplication and division, nor just getting the answer to a certain question. The real meaning of worldly knowledge is to apply it and use it."
For the world, it simplifies the process of people’s daily necessities, food, clothing, housing and transportation.”
Li Qinzai reached out and picked up a piece of ice and said slowly: "Using the knowledge you have learned to create things that ordinary people dare not even think about. This is the true destination of knowledge."
Li Sujie and others saluted solemnly: "Thank you sir for your instruction. I have learned from you."
Li Qinzai added: "How to turn water into ice, the process is very simple, but the principle is very complicated. There is a laboratory in the school, and its function is to often do some similar small experiments, but now you still have to learn to calculate clearly and learn effectively.
After that, you can gradually get into contact with more profound physics and chemistry."
All students should salute as they should.
Behind the gate of the courtyard, Li Zhi stood quietly behind the gate and listened to Li Qinzai's lecture.
After a long time, Li Zhi curled up the corner of his mouth and murmured: "Turning water into ice... He is indeed a disciple of the Mohist family. Only the Mohist family in the world has such a great talent that can reach the sky and escape from the earth. If he can really use what he has learned."