About Raindrops
Have raindrops several forms?
There are the raindrops mainly by their size. The drop shape is always similar. Only the amount of water droplets, which has become a raindrop also produce different types of rain: Raindrops form when water droplets will be compressed by a certain temperature in the clouds. Then more and more raindrops into a single droplet together. The more drops of expellees, the harder they become. At least they fall and take them on their way to the ground more water droplets until they are as rain falling on the floor.
This rain, we know as spray or drizzle. He is still very fine. The drops are 0.1 to 0.5 millimeters in diameter. Drizzle consists of small, fine, densely distributed rain droplets. Large raindrops are about 5 millimeters in diameter. They arise when the temperature in the cloud is so low that ice crystals arise. To form the first snowflakes that fall from the cloud and on the way through the layers of warmer air to thaw. These drops are big and heavy.
Greater than 5 mm can hardly be a drop. This value is not more during the falling of the surface tension kept together. He sprayed it into several smaller droplets. Rain drops containing different sizes, of which the smaller ones usually do not reach the ground, as they are on their way down evaporate.
The major collision with small droplets, two equally large droplets and ice crystals from growing at the expense of small droplets at temperatures below zero degrees allow a growth of precipitation particles within the clouds. The more rain and snow particles are in the cloud, the greater the speed of the case: The precipitation particles fall from the cloud and melt below the zero line. It starts to rain.
