Lin Yi pointed to the two air intakes like bull's horns and said, "Because you are willing to listen to my opinion and open two air intakes on both sides of this furnace, you can refine better than your master." ”

"Is it that these two air intakes can be opened to make better iron? What's so magical about these two air inlets? Curious, Peach Twelve walked over and circled around the furnace, approaching the air inlet, and the nearby heat immediately hit his face, and he hurriedly took two steps back.

At the same time, Li Yu stretched out his hand, grabbed Peach Twelve, pulled it back, and said, "Be careful!" It's hot there. ”

Peach Twelve glanced at him and said, "What's so magical about this air inlet?" ”

Li Yu shook his head and said, "Nothing magical? I just opened these two openings according to the method that the owner said. ”

Li Yu said, turned his head to look at Lin Yi, and said, "Owner, why is this?" ”

Lin Yidao: "This involves several chemical reactions. ”

"Chemistry?" Several people were even more puzzled, looking at Lin Yi, it was all a question mark.

Lin Yi groaned: "You see, the space around us is empty, there is nothing, in fact, this is not the case, we are surrounded by things that cannot be seen or touched, this kind of thing is called air, air is not a substance, it also contains many kinds of gases, among them, for us, the most important gas is called oxygen." ”

"Oh, I see, the air, the oxygen, is it the same as the white gas that we usually breathe?"

Li Yu reacted quickly, and immediately thought of the white mist when he was angry on weekdays.

Lin Yi said: "The gas we come out of is called carbon dioxide, which is originally the same as oxygen, it has no color, but sometimes the outside air is cold, and the air that comes out of the air is because of the water, and when the water is cold, it will turn white." ”

Peach Twelve listened to Lin Yi's explanation like a book from heaven, subconsciously reached out and touched the empty space in front of him, and said in a daze: "Wow, it turns out that there is so much qi around us, why can't I feel it?" ”

Lin Yi said with a smile: "What you feel, on weekdays, the wind you blow is generated by the flow of air, which is the most direct way to feel the existence of air." ”

"Oh......"

The three of them suddenly realized that there were so many things in the wind they usually blew.

Li Yu frowned and said, "Owner, is it that our iron refining is better, and it has something to do with this air?" ”

"Clever!" Lin Yi praised and said: "To be precise, it is related to the oxygen inside, carbon under high temperature conditions, when it encounters oxygen, it will turn into carbon dioxide and emerge from the molten iron, which plays a role in removing carbon, and the carbon in the iron is less, and the quality will be greatly improved." ”

"Ah, I see, no wonder the owner let me open two air intakes." Li Yu said with a look of surprise: "What the owner said, I really had never heard of it before. ”

Lin Yi said secretly in his heart: How do you know? This knowledge has gathered the wisdom of many smart people, and if you haven't learned it, you will naturally not know it.

"yes, we've never heard of it before." Peach Twelve.

Tao Eleven couldn't help but speak: "Twelve and I have followed my son-in-law since we were children, and we have also read some books with my son-in-law, but no master has ever taught my son-in-law these things, madam, how do you know this?" ”