The colors of the rainbow are in order — why exactly?

What is a rainbow?

Rainbow is an amazing and incredibly beautiful meteorological and optical natural phenomenon. It can be observed mainly after rain, when the sun peeps out. It is this that is the reason that we can see this wonderful phenomenon in the sky, as well as distinguish the colors of the rainbow, arranged in order.

rainbow colors in orderCauses

Rainbow appears due to the fact that the light emanating from the sun or from another source, is refracted in droplets of water slowly falling to the ground. With their help, white light "breaks", forming the colors of the rainbow. In order, they are arranged because of the different degrees of light deviation (for example, red light deviates by less degrees than violet). Moreover, a rainbow can also appear due to moonlight, but it is very difficult for our eyes to distinguish it in low light. With the formation of the circle, which forms the "heavenly bridge", the center is always on a straight line passing through the sun or the moon. For those who observe this phenomenon from the ground, this “bridge” is represented as an arc.But the higher the viewpoint, the fuller the rainbow. If, however, to observe it from the mountain or from the air, it can appear before the eyes as a whole circle.

Rainbow color order

Many people know the phrase to remember the order in which the colors of the rainbow are located. For those who do not know or do not remember, let us recall how this line sounds: "Every Hunter Wants to Know Where the Pheasant Sits" (by the way, now there are many analogues to this famous monostich, more modern, and sometimes very funny). The colors of the rainbow are in order: red, orange, yellow, green, blue, blue and purple.in what order the colors of the rainbowThese colors do not change their location, capturing in memory the eternal appearance of such an incredibly beautiful phenomenon. The rainbow we often observe is primary. When it forms, white light undergoes only one internal reflection. In this case, the red light is outside, as we used to see. However, a secondary rainbow may form. This is a rather rare phenomenon in which white light is reflected in drops twice. In this case, the colors of the rainbow are in order already arranged in the opposite direction (from purple to red).In this part of the sky, which is located between the two arcs, it becomes darker. In places with very clean air, one can even observe a “triple” rainbow.

Unusual Rainbows

rainbow color orderIn addition to all the usual rainbow in the form of an arc, you can observe its other forms. For example, one can observe lunar rainbows (but it is difficult to catch them for the human eye, for this the glow from the moon must be very bright), hazy, circular (these phenomena have already been mentioned above) and even inverted. In addition, the rainbow can be observed in winter. At this time of year, it sometimes arises due to severe frosts. But some of these phenomena have nothing to do with the "heavenly bridges".

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