论文部分内容阅读
什么是云?不就是水蒸气嘛!许多人会脱口而出.这其实是非常错误的结论,水蒸气是气态的水,我们的肉眼根本就无法看到.当我们烧开一壶水,会看到一团白雾笼罩在水壶嘴的上方,这团自雾就是水蒸气遇冷凝结成的小水滴,也就是说我们看到的白雾其实是液态的水.天空中的云就是空气中的水蒸气遇冷凝结所形成的.云看起来轻飘飘的没有质量,其时它的体积非常庞大,质量也非常大.比如夏日晴空中常见的纤瘦的卷云,一个云朵的体积能够达到几立方千米,质量有几百吨;如果是暴风雨来临前的大片积雨云,足有数百万吨重.
What is the cloud? Not the water vapor! Many people blurted out. In fact, it is a very wrong conclusion. Water vapor is a gaseous water that can not be seen by our eyes. When we boil a pot of water, we can see A group of white mist shrouded in the top of the kettle mouth, this group from the fog is the condensation of water vapor condensate droplets, that is to say we see the white mist is actually liquid water. The cloud in the sky is the water in the air The condensation of vapor in the cold formed by the cloud looks like there is no quality of light, when its very large size, the quality is very large.For example, the common summer thin cloud of cirrus clouds, a cloud of volume can reach several cubic Km, the quality of hundreds of tons; if it is a large thunderstorm before the storm, enough to have millions of tons.