Rainbow in the sky.

Raduga is an atmospheric optical and meteorological phenomenon observed when the Sun (sometimes the Moon) illuminates a multitude of water droplets (rain or fog). A rainbow looks like a multicolored arc or a circle composed of the colors of the spectrum (from the outer edge inwards: red, orange, yellow, green, blue, blue, violet). These are the seven colors that are usually distinguished in a rainbow in Russian culture (perhaps following Newton, see below), but it should be borne in mind that the spectrum is in fact continuous, and its colors smoothly pass into each other through many intermediate shades

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