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Light poles
This is one of the most beautiful phenomena in the atmosphere. Especially in cities where many light sources of different colors. Mandatory condition for the occurrence of light poles, it is a low temperature (-20 C), lack of wind and the large number of ice crystals in the atmosphere. Ice crystals, in turn, should be mostly flat shape (diamond-shaped). With the fall in the air, they will try to take a horizontal position and will work as small mirrors.
