Chapter 101 Evaporation
We all know that if you put something wet outside, it will dry out. However, few people realize that it is the evaporation of water. Evaporation is a slow process that hardly changes anything other than drying out the object.
Global warming is a hot topic in recent years, and it is the direction of discussion for almost everyone who pays attention to climate change. There are also different opinions about the reasons for its formation, and there are different theories. Meteorologists have noticed that melting glaciers in Antarctica have led to an increase in liquid water. We know that melting glaciers are heat-trapping, yet global temperatures are rising. The high temperature of the previous year fully explained the situation of the rise in global temperatures. In the face of rising temperatures, meteorologists say it is because of melting glaciers. Is this counter-intuitive? Yin and yin are heat-absorbing, how does it cause the temperature to rise? My guess is that there is some degree of evaporation in liquid water, and evaporation is endothermic. However, the evaporated water vapor carries more heat. Perhaps the rise in temperature is due to the evaporation of the extra liquid water. There's a speculation called the evaporation paradox, and maybe it's the answer. Of course, the climate is complex. Even meteorologists are confused about the climate, let alone meteorologists like me!
Speaking of evaporation, there is a Korean movie with the same name. And Huaxia Film Company also produced the movie "Evaporation in the World". Not physical evaporation, of course. However, there is no doubt that evaporation in language is derived from evaporation in physics. The evaporation of water is that it becomes gaseous and enters the clouds. And the evaporation of man is to disappear without a place, and there is no way to find him. However, he is definitely still in this world. So, let's talk about physical evaporation! Mizukawa Mi finished one sentence after another.
The question is the foundation of the conclusion. My question is, does the water absorb heat from the water or the air when it evaporates? From the point of view of fate, water will inevitably enter the air after evaporation. If water evaporation is to absorb heat from the air, then it cannot enter the air. So, I think it's absorbing heat from a body of water. The second question is whether the evaporation of water is layered or droplet-shaped? You may ask, why don't you say it's dotted? Because I noticed that water exists in the form of water droplets in special cases, and water droplets are the smallest component of water. Since water has a certain viscosity, water droplets are formed. What does water evaporate like? Actually, the layers here are also yin, and the layers here are not two-dimensional surfaces in the mathematical sense. What is the nature of evaporation of water? I think it's a manifestation of heat transfer. Divers know that the deeper the water, the lower the temperature. In the water body, due to the integration of buoyancy, all the heat runs to the water surface, and in order to consume the heat on the water surface, a part of the water must absorb heat and send the heat to the air. Since heat is always transferred upwards from the bottom of the water, evaporation cannot be layered. For Dueñas, the problem is not simple. Even though some have been explained, there are still key details that have not yet been clarified.
Dueñas said it well. A good conclusion can't be without questions, and my question is is that the evaporation of water has something to do with the buoyancy of water? Dueñas just said that the heat is upward due to the integrated action of buoyancy. What he means is that buoyancy is not a superficial force as it seems, but a three-dimensional force. Although the water inside is not on the surface, they also have an effect on the buoyancy of the water body. However, according to him, when the water evaporates, the buoyancy becomes smaller. At sea, we don't feel less buoyancy. However, everything has to be in the details. First of all, evaporated water makes up a very small portion of the water body. Even if it does make the water body less buoyant, it is insignificant. There is also the fact that although buoyancy can be integrated, it is also repulsive. The buoyancy of the water surface is the final buoyancy, which is the result of the superposition of the buoyancy of different layers. My second question is will there be gaseous water that will fall back into the air due to lack of heat? There are many examples in mathematics, but don't they exist in physics? How many kilometers are there from the surface of the water body to the clouds, and how much energy is required for this? It may be a subjective assumption that water evaporates into the air and enters the clouds. Perhaps the trajectory of the water is a curve, and eventually it reaches a new location. Of course, it is undeniable that there is still a small amount of gaseous water in the clouds. It seems that a good question is a good discussion. Liuzifeng's talk has its own style, which is refreshing.
Then I'll talk about one too. Is the evaporated water on the surface of the water? You're going to scoff at it. The water that evaporates from Yin Yin is on the surface of the water, how can I say that it is not there? To answer this question, we must first answer another question: Is there heat transfer between the waters in a body of water? Note that I am referring to the microscopic shade, which can be observed experimentally. Or the third question: why is water fluid? Isn't it because of heat transfer? If heat transfer occurs everywhere in the body of water, wouldn't that explain the flow of water? Since there is such a flow, it is likely that the water evaporating from the surface of the water comes from the inside of the water body.
Well, that's it.
When the three of them heard this, they all applauded. Then, the discussion ended.