The occurrence of a rainbow is not due to the angel coming down to earth

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Hello Steemian
The youngest has just finished reading the storybook. The book tells the story of angels who descended from heaven to form a rainbow. The tale tells of a young man who took the angel's shawl so that the angel could not fly back to heaven. Finally he became the wife of the young man. But at the end of the story the angel managed to find the hidden shawl until finally she could fly again to heaven.
He suddenly asked.
"Is it true that the rainbow comes from the shawls of the heretics who descended to earth?"
of course I smiled at the question. Then I explained that the rainbow was not just an angel like it was taught in a variety of fairy tales.

Dispersion of Sunlight

One interesting natural phenomenon is the rainbow. We often see a rainbow, especially when the sun is strong enough and the rain drops lightly. The colors are ready to make you fall in love. Rainbow inspires little in life from being made into songs, poems, cake name stories, to fashion fashions.
A rainbow occurs due to refraction and decomposition of light. Sunlight that passes through a raindrop will be refracted through rain drops. These rays move from one medium to another by water droplets in the atmosphere. Differences in the density of air and water cause sunlight to be deflected or refracted.
The difference in wavelength and differences in angle when the sunlight is refracted causes the colors in the sun to spread and separate. This event is known in physics as light dispersion. Sunlight is broken down into spectrums of light according to their wavelengths. Apparently, there is reflected sunlight again. When sunlight comes again through the water when it rains, the light is refracted and dispersed again, thus happening continuously in large numbers so that it forms a rainbow bow,
The rainbow can only be seen when it rains and there is sunlight. Your position as an observer is also very decisive. We can see a rainbow if you are in the rain and sun. Sunlight is behind the observer, a straight line with a rainbow or in other words you have to turn your back to the sun. Now because of the refraction process, a rainbow is formed in front of the observer's eyes!
We can see the rainbow when the sun is bright, the rain or fog and the right angle. As we know that the position of the observer must be back to the sun, or more precise if the angle reaches 42 degrees. The point is that the rainbow is more likely to be seen before sunset or with lower sun conditions.
So we can easily find a rainbow in the afternoon or morning when the sun is in a low position and allows us to turn it back.

Rainbow color composition

The color of the Rainbow is always the same arrangement. The top color is red and the bottom color is purple. This is because red light is part of the spectrum of visible light that has the lowest frequency or has the longest wavelength when compared to other visible light and purple light has the highest frequency and the shortest wavelength. So from this that causes the red and purple colors will not meet each other. Red is at the very end of the rainbow and purple is at the bottom of the rainbow and between red and purple is surrounded by colors, orange, yellow, green, blue, indigo so that the colors of the rainbow will be perfect.
These colors come from sunlight (or commonly called polycomatric) which has several colors in the formation of a rainbow. Some visible light can be seen into 7 colors: red, orange, yellow, green, blue, indigo and violet. The color appears and is referred to as visible light. Visible light is an electromagnetic wave that arises due to an electric and magnetic field. The colors in the light have different wavelengths and frequencies so they determine the color order of the rainbow
Actually, the color of the rainbow is not only 7. Refraction on the rainbow will form all the colors that exist on this earth. But our vision is limited to distinguish them. So don't be surprised too, if there are some people who can see a rainbow in 7, 6, or 5 colors. The same rainbow can be seen differently by different people because of the color perspective.
Even though it looks like a rainbow shaped like half a circle, the shape of the rainbow is actually really circular. this happens because of our limited vision. We see a rainbow bounded by a flat plane on the earth where we stand so we can only see a circle.

A homemade rainbow

It turns out we can also make a rainbow. We can invite children to make a rainbow at home. The method is also simple and easy. Just provide water spray. Fill the water spray with enough water. Adjust the spray cap so that the water that comes out in the form of soft grains such as mist or rain. After that, look for a location that is quite sufficient sunlight. can be done on the page when the sun is shining brightly. Spray the water up. When the water falls pay close attention. Water will refract sunlight into a spectrum of red, orange, yellow, green, blue, indigo and violet. And we succeeded in making our rainbow.
Thus all my writing thus time may be useful for all of us.

Thank you for reading my post. I hope you enjoy it.