We can briefly say that a rainbow is a meteorological event consisting of seven colors, which is one of the most eye-catching events in nature, which occurs with the refraction of the sun’s rays. Rainbow; In Siberia, the “tongue of the Sun” is a symbol of hope and luck in Western culture. According to Iranian mythology, if the color red is dominant, it means “war”, if the color is green, it means “happiness”, and if the color is yellow, it means “unhappiness”.
Well, which has influenced many cultures; How does this natural phenomenon, which contains the colors red, orange, yellow, green, blue, dark blue and purple, and makes us look at the sky with hope after every rain, occur?
How is a rainbow, a symbol of hope and luck, formed?
Light rays are refracted once as they enter and exit the water droplets (they can be reflected several times while inside the droplets). When the rays reflect once before exiting the drops, rainbows are formed in which the colors are ordered from outside to inside as red, orange, yellow, green, blue, dark blue and purple.
When the rays are reflected twice, the order of the colors is reversed. Rainbows can also occur when light rays are reflected twice or more. But rainbows formed this way are usually very pale.
Also, another important element is that the Sun must not rise more than about 40 degrees above the horizon for a rainbow to be seen.
When can we see the rainbow?
Arc-shaped light spectra are seen after rain in the morning and evening hours or when it rains in the afternoon.
We should not forget that the most important factors in the appearance of the rainbow are the sun’s rays and the rain.
The first thing to do in order to see the rainbow clearly is to move the Sun back. After the sun is back, look ahead and enjoy the view.
Apart from sun rays and rain, the most important factor is the angle of the Sun in the sky. Because at some angles the rainbow is not visible. The required angle should be about 40 degrees, as we mentioned above. If it is above 40 degrees, the rainbow will not appear.
Although the most common case of rainbows is the primary one, they can sometimes be seen in more than one at the same time. In this case, which is called a double rainbow, we almost always see a single rainbow in the sky when the necessary angle for the formation of the rainbow is provided.
However, sometimes under certain weather conditions, the light reflected from that angle is scattered, scattered again, and reaches our eyes again from another suitable angle. In this case, 2 images of the same rainbow are formed. This is called a “double rainbow”. Technically there is 1 rainbow, but 2 copies of that rainbow appear in the sky.
Can we pass under the rainbow?
Some of us surely remember the scene in Müjde Ar’s movie Köçek, where she passes under the rainbow and changes gender. Those who can’t remember can take a look and laugh a little. Unfortunately, it is impossible to pass under the rainbow like in this movie.
Our ability to see the rainbow depends on the Sun and the water droplets being in the right position relative to us. If we move towards the rainbow, its position relative to us will remain the same. So as we move, it will progress and it will be impossible for us to reach it. However, this does not prevent us from seeing another person pass under the rainbow, even if he cannot see it himself.
Where, according to legend, is the end of the rainbow with a bowl of gold underneath?
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In fact, the rainbow has no end or beginning. When viewed from the earth’s surface, rainbows appear in a semi-circle. However, when you look from the top of a high mountain or from the inside of a high-flying airplane, you can see rainbows in a full circle.
We usually see less than a semicircle because hills and buildings on the ground narrow our field of vision. In order to see more than half of it and witness this incredible natural phenomenon, you have to go to the top of the mountain or be on a plane.
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