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One morning after Lichun more than ten days later, the sky was filled with snow flakes. My father and I went out for a run, and the snow fell on my hat and turned into water. Back home, my hat was moist. Dad pointed at the air conditioner again and asked, "Why should the air conditioner be installed above the wall?" More of Li Chun's composition can be found on the Giant Composition Network Marlboro Red. One morning after Lichun more than ten days later, the sky was filled with snow flakes. My father and I went out for a run, and the snow fell on my hat and turned into water. Back home, my hat was moist. At this time, my father saw me wet on the hat, and asked me: "Why does the snow fall into water on the hat?" I thought for a long time, and then said: "It is hot on the head, and the snow falls on the hat. , It is equivalent to the heat, and it naturally turns into water! "Dad asked back:" Then the back is not hot? Why can't the snow fall on the back to turn into water? "I thought for a long time, I couldn't think of a So I came and said, "Dad, I do n��t know why, can you tell me?" Dad told me the answer: "It ��s because of sweating on my head during running, and the heat is going up, all Concentrated between the hat and the head, the temperature at the top of the hat is high, and the snow falls on the hat and turns into water. "Oh, it turns out that my father pointed to the air conditioner and asked," Why should the air conditioner be installed above the wall? "I replied:" Haha! I know that, because the cold air runs down, if the air conditioner is installed under the floor, the people will not be able to cool. "Dad said:" It's almost the same! Strictly speaking, this is: the air conditioner blows out the temperature is low Newport Cigarettes. Air-conditioning, heavy air-conditioning, running down; in the room Other air is hot, the heat is light, run up, the cold and hot gas phases exchange heat, the cold air becomes hot, and the hot air cools, the temperature of the air in the entire room is reduced, the temperature is low, and naturally it is cool. If the air conditioner is safe Under the wall, the cool air from the air conditioner is always on the floor, and the hot air above is always on the top. If the circulation is not up, the temperature of the house cannot be reduced, or the temperature is reduced very slowly, so the air conditioner should be installed above the wall. "Dad said Turning on the heating, he asked: "Why is the heating installed under the window?" I replied: "Hee hee! It's so simple! The window is the coldest, and the heat source should be installed in the coldest place Marlboro Lights, so install the heating under the window. My dad said with a smile: "You've used your brains today. I started to understand a lot of reasons from the question of why the snow fell on the hat. I have to ask more why in the future, and then I can learn more knowledge."
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