Mo Yue smiled and said, "Wang Matchmaker, it seems that your son is a clever boy. He has already talked about the profound physical knowledge of light refraction."

Matchmaker Wang said with a smile, "Yes, the kid is really smart, and he is very interested in physics. He often stays in his cabin to do experiments when he goes home after school or when there is no class for six days."

Demon Yue smiled bitterly, "What do I say, how can he speak so eloquently, I feel dizzy."

Xiao Liu frowned, "I listened for a long time, and it seemed that Xiaodouzi was arguing with your son about whether the house was a ghost house or not. Then, what happened to that house?"

Matchmaker Wang said with a smile, "I will continue to tell you, and you will know everything. At that time, my son's explanation made me dumbfounded by all the students present in the clouds. Xiaodouzi frowned, we humans Aren’t my eyes just used to see things? What do they say about refraction? My son shook his head. No, the reason why humans can see things is because of the result of the folding line of light. In daily life, the most common light refraction affects vision The factors of object distance are air and water. Everyone knows that when light enters the water, deflection will be found. In other words, the actual position of the object in the water is the same as the position judged by the human eye. There is a deviation. Xiaodouzi frowned, how much deviation can there be? His son laughed. Normally, the actual position of the object in the water is slightly deeper than the position judged by the human eye. Moreover, according to the depth of the water, the water The deeper the depth, the higher the deflection rate of the object in the water. Oh, yes, this kind of light deflection phenomenon, the specific deflection rate, should be calculated with a formula. Xiaodouzi frowned, the specific deflection rate needs to be calculated How to calculate it? My son laughed. It's very simple. Just divide the distance of the position judged by human eyes by the distance of the actual position of the object in the water to get the refractive index. Xiaodouzi is dissatisfied with the authenticity, cut, you say Even the physicists didn’t expect that, you’re talking nonsense, are you? The son proudly patted his chest, why should the physicists think about it first, wait for them to formulate the formula, and then you will learn it? Isn’t that true? Douzi was speechless, so he had to smile wryly, wait for the physicist to work out the formula, let's go to study, is there any problem? At least do this, no mistakes, because the experts have already worked out the formula , Let’s follow the formula, and there will be no mistakes. My son laughed, yes, the reason why modern technology develops slowly is because there are too many people like you. Xiaodouzi sneered, what's wrong with people like me? At least I won’t Make a mistake. My son laughed, yes, you can’t make a mistake, because all you use are formulas verified by others, so you can’t make mistakes at all. However, if people like you are doing research in the scientific community, Then, don’t we have to stagnate, just knowing that we can use what we have done before and can’t invent and innovate. What's the use? Xiaodouzi waved helplessly. I stick to the old rules and stand still, then Please continue to express your high point. My son laughed. As I said just now, the refractive index of light can be calculated. Just as I just said, just divide the distance of the position judged by the human eye by The distance between the actual position of the object in the water, the refractive index of light can be obtained. This time, Xiaodouzi did not speak, but opened his eyes and looked at his son in silence. The son laughed, Xiaodouzi, it is because we humans With the wisdom and ability to continuously develop and innovate, dare to think and dare to do it, human society can continue to progress, science and technology are changing with each passing day, and we can enjoy a better life now. Do you understand? Xiaodouzi sneered, very good, all high-profile, Go on, I’m listening. My son smiles bitterly, knowing you’re not convinced, but I’m telling the truth. Okay. , I am too lazy to argue with you now, I personally think that sooner or later there will be experts to carefully study the refractive index of light. Of course, what I just said is not necessarily correct, it is just my personal speculation. Xiaodouzi smiled. I said, we were arguing whether the house was a ghost house or not. How did the blink of an eye involve such a high refractive index of light? The son smiled and said, you are wrong again. When I talk about the refractive index of light, I am actually explaining the doubt in your mind. Don’t you insist that it is a ghost house? Let me tell you, it’s not a ghost house at all. The reason why you feel that you have been walking for a long time and haven’t walked to the front of the house is actually because the serious deflection of the light gave you an illusion and made you mistakenly think that the house is away from us. Very close, in fact, the actual distance between that house and us is still far away. You think the house is very close to us because after the light is deflected, the distance you can judge with the naked eye is much farther than the actual distance between the house and us. Xiaodouzi frowned, you speak slowly, you said so much in one breath, I am a little indigestion. This place is close to the mountains, it is bare, there is nothing, can there be refraction? The son said with a smile, alas, it seems that I said it for a long time, but it was all for nothing. I just told you that the common deflection phenomena that affect the light in daily life are because one is water and the other is fog in the air. Xiaodouzi was surprised, isn't it just mist? Can it also refract light? The son smiled, of course. By the way, have you noticed that the fog tonight is very thick. The students present listened and looked around. Sure enough, the fog was thick and the house not far away seemed to be covered with a layer of yarn. Xiaodouzi sighed, well, the fog tonight is quite big. However, regarding the impact of fog and water on light, I hope you can explain it more carefully. You know, I'm two years younger than you, still a child, and my brain is not as fast as you. The son smiled, okay, I will explain to you slowly. For example, there is a fish in the river, and the fisherman is standing by the river and intends to catch that fish. The net must be cast a little deeper, otherwise the fish will not be caught. Xiaodouzi was surprised, why should we cast the net deeper? The son smiled and said, you, your mind is a little slow, if your father, Mr. Joe is here, he will definitely give a punch. As I said earlier, since the light will be deflected after entering the water, the actual position of the fish in the water is deeper than the fisherman’s visual judgment, so if the fisherman wants to catch the fish, You need to cast the net deeper. "