What is a mirage
At all times people see mirages. In ancient times, they explained their intervention of the gods or spirits. Today we know that otherworldly forces is not to blame. Mirage - is an optical phenomenon in the atmosphere, the game of light rays through which imaginary objects image appear in sight.
This phenomenon occurs because the light passes through layers of air of different density is refracted. At the same time, distant objects can appear as if raised. They can also be distorted and acquire the most fantastic formy.Hotya such natural phenomena to associate with deserts, very often they can be seen in the mountains, above the water surface, even in the cities. These fabulous pictures can be seen everywhere, where there are sudden changes in temperature. Mirages are several types. The first group includes lower (lake) mirages - when distant, smooth surface takes the form of open water. This illusion is in the desert, on an asphalt road. Above the heated surface is formed by a kind of layered cake from the air. Light waves passing through the nearest land is the hot and rarefied layer distorted because their speed depends on the density of the medium. Lakers mirages - mirages most rasprostranennye.Vtoroy type is called the upper or distal. They are more picturesque in comparison with the bottom, but there is much less common. Deleted items appear in the sky upside down, and sometimes above them there is also a direct image of the same object. This air screen may affect the city, the mountains, which are hundreds of kilometers away from the observer. Such mirages are typical of cold regions, where over the cold layer is a layer of warm air. The upper mirage objects more clearly visible. Side mirages appear near vertical surfaces, strongly heated by the sun. This species often appears at the Geneva ozere.Esche one type of mirage was a beautiful name Fata Morgana. This is the most beautiful of these phenomena. Sometimes over the warm waters of a layer of cold air, which appear magical castles, fairy-tale palaces, gardens. These fantastic paintings continuously changing. According to Arab tradition, the wicked fairy Morgan loved teasing thirsty travelers, she lured them into the hottest place showing ghostly fountains, lush oases and palaces with lush gardens. Science is difficult to give a reliable explanation for these mirages. By the Fata Morgana are numerous and "The Flying Dutchman", who sometimes see moreplavateli.Ne less mysterious phenomenon - hronomirazhi. They reflect the events occurring in the past. Especially famous mirages got past battles and battles. Despite the frequency of these natural phenomena, they are very difficult to study. It is not known where and when and how much a mirage appears last. We can not say that it is a beautiful and mysterious sight can be very dangerous. History knows many cases where mirages ruined or brought to the madness of their victims.