Chapter 455 Crazy Demon Li Shimin was stunned when he heard this, but then he thought that Li Tai had indeed invented a kind of food for the Tang Dynasty. As long as it was popularized throughout the world, it could indeed provide a profitable livelihood for the people.
With this thought in mind, he didn't care about anything else. He quickly picked up Li Tai, patted him on the shoulder, and said happily: "Okay, okay! I want my son to work for the benefit of the people of the Tang Dynasty. When I go back, my father will have many things to do." reward."
"Thank you, Father!"
Li Tai was overjoyed, but he didn't even look a little aggrieved.
Ji Song turned his head aside when he saw it. He was really defeated by the father and son.
But for Li Tai, he is just a child who behaves in front of his father. No reward can be compared to a compliment from his father. Didn't Li Ke look envious and almost become jealous? "Your Majesty, now that the competition is over, is it time to proceed to the next step?"
Ji Song quickly reminded, are you father and son still finished?Didn't you see so many people still waiting? Seeing Ji Song's resentful eyes, Li Shimin smiled coquettishly and said, "Well, let's get started!"
Ji Song cupped his fists and bowed before stepping forward.
“The debate is over, now on to the rankings!”
Hearing what Ji Song said, both the eighteen students and everyone on and off the stage felt at ease.
"Zheng Ming!"
"The students are here!"
Zheng Ming held back his excitement and took a step forward.
Ji Song nodded and said with a smile: "Your discussion is complete. Although it is slightly lacking, it is still rare. You must know that the most important thing in learning is to follow the script and get to the essence. I hope you will pay attention to it in the future!"
Zheng Ming thought for a moment, bowed and replied to Ji Song: "Thank you sir for your advice!"
"Well, very good! Not arrogant or impetuous, that's good! Don't you want to know what are the shortcomings? Now I will tell you and convince you, don't say that I am selfish!"
Ji Song said with a smile: "The role of nitrate is not just for making ice. When used as medicine, it can be used to treat gastric ulcers, warm the body, digestion, water removal, and diarrhea. It is used for epigastric gastric ulcers, gastric ulcers, indigestion, and edema. Symptoms such as edema, mastoma, amenorrhea, and constipation.”
"But that's not all. I divide saltpeter into two types, that is, Glauber's salt and fire saltpeter. There is a white frosty substance on the corner of the old city wall, which is Glauber's salt. The above mentioned is Glauber's salt, and let's talk about the fire saltpeter below."
"Unlike Glauber's salt, fire salt can not only be used as a dye, but also slow down the decay of food. It is a very good preservative!"
"And the use of saltpeter to make ice is just one of its many functions. Are you convinced by what I say?"
Zheng Ming was silent, bowed to Ji Song and stepped back.
He was just exploring the process of making ice from saltpeter. My husband had already demonstrated it in front of their eyes. As long as they put in the effort, everyone would soon understand this.
He knows that many people just don't come on stage. It's not that they don't know, they just keep a low profile! He didn't expect that saltpeter could have so many functions besides making ice. He was too self-righteous. He looked down on everyone in the world even though he only knew a little bit about it. He still had a lot to learn.
Ji Song didn't care about Zheng Ming's thoughts. Young people need encouragement, but they can't develop an arrogant character. It's good to hit him.
Then he looked at Li Ke and said: "Your experiment is very interesting. You actually put aside the stereotypes and think from other aspects. This even surprised me. It seems that you are really suitable for this way of thinking. You can draw inferences from one example and introduce new ideas." , this is the essence of gewuxue.”
Then he looked at Li Ke who was a little anxious and said: "As for the answer you want to know, I will tell you now."
"The top layer does not freeze, while the bottom layer melts slowly under the same environment. Have you considered the consumption of temperature transfer?"
"You mean the calories will be consumed?" Li Ke said in surprise.
Ji Song smiled and said, "Why not?"
"It's like a glass of hot water you just poured, but it will get cold very quickly. But have you ever noticed that it cools down slower when the weather is hot, but cools down faster when the weather is cold? "
After saying this, he stopped talking. There are some things that he still needs to think about on his own! "Then why does the bottom ice melt slowly?" Li Ke asked Song did not answer directly, but asked instead: "Then why does the hot water cool slowly when the weather is hot?"
Li Ke was even more confused, yes, it cools slowly when it's hot, but cools quickly when it's cold.
But what is the reason? No, there are things here that I haven't considered. What's missing?
He was a little confused and didn't know what to do! Li Shimin was also anxious. He couldn't think of anything, but when he saw his son's confused eyes, he felt a little distressed.
"Your Majesty, please be patient. This boy is guiding the King of Wu. As long as he can figure it out, his knowledge will be greatly improved in the future. Congratulations to your Majesty, the royal family is about to give birth to a Qilin."
Li Shimin was stunned for a moment, but seeing Ji Song's relaxed expression, he knew that Li Ke would be fine. Hearing Li Gang's words, he also started looking forward to it.
Li Ke thought hard, but he couldn't think of anything else that had been overlooked.
He wiped the sweat from his forehead and drank the sour plum soup at hand.
Well, it feels so cool and comfortable!
He could feel a coolness entering his body along his throat, feeling comfortable along the way.
But why does it feel cool? Suddenly, he opened his eyes wide and looked at Ji Song.
"I understand! It's passing!"
He seemed to be crazy, walking up and down the stage, mumbling to himself.
"Temperature is temperature. High temperature transfers to low temperature. The reason why the lower layer of ice melts slowly is because the temperature of the lower layer is too low and the outside temperature is not high enough.
So, under the same conditions, he melts slower? "
"But what does heat transfer rely on? A substantial object? Water? But when the water in the basin melts, it does not have heat itself, but the heat of the sun. So how does the sun transfer temperature?"
He fell into a dead end again. He couldn't figure it out. There was nothing between the sun and the ice. If according to his thinking, heat transfer requires the transfer of things, how does the sun transfer heat?
Ji Song sighed when he saw Li Ke going crazy.
He came to Li Ke and said: "Idiot, who told you that there is nothing in the air? Is there anything on your face when the wind blows? What makes the water ripple when the wind blows on it? You pick up a If a piece of paper is thrown and there is nothing to stop it, how can it float randomly?"
Li Ke looked at Ji Song blankly and said stupidly: "What is that?"
"Air!"
"Air?"
"Yes, it is air. It cannot be seen or touched, but it does exist around us."
"So, the sun relies on the air to transfer temperature?"
"Ruzi can be taught!"
Li Ke's eyes became brighter and brighter. He understood, but he had more doubts.
However, he finally came to his senses. He knew that this could not be figured out overnight. Anyway, the days were still long and he had plenty of time.
Not in a hurry! (End of this chapter)