Last Updated on August 3, 2021 by Neil Mackengie
We speak of ordinary light as being “white”; we call it white light, or sunlight. But this light is really a mixture of colors. When Sunlight strikes the edge of a mirror or the edge of a glass prism or the surface of a soap bubble, we see the colors in the light. What happens is that the white light is broken up into the different wavelengths that are seen by our eyes as red, orange, yellow, green, blue, indigo, and violet.
These wavelengths form a band of parallel stripes, each color grading into the one next to it. This band is called a “spectrum”. In the spectrum, the red line is always at one end and the indigo and violet lines at the other end, and this is decided by their different wavelengths.
When we see a rainbow, it is just as if we were looking at such a spectrum. In fact, a rainbow is simply a great curved spectrum caused by the breaking up of sunlight.
When sunlight enters a droplet of water, it is broken up just as if it had entered a glass prism. So inside the drop of water, we already have different colors going from one side of the drop to the other. Some of this colored light is then reflected on the far side of the droplet, back and out of the droplet.
The light comes back out of the droplet in different directions, de- pending on the color. And when you look at these colors in a rainbow, you see them arranged with red at the top and violet at the bottom of the rainbow.
A rainbow is only seen during showers when rain is falling and the sun shining at the same time, but on opposite sides of the observer. You have to be between the sun and the droplets of water with the sun at your back. The sun, your eye, and the center of the arc of the rainbow must all be in a straight line.
what Is The 7 Colors Of Rainbow
There are seven colors in the rainbow: red, orange, yellow, green, blue, indigo, and violet.
Rainbows are a controversial topic. Some religions (such as Christianity) believe them to be a sign of God’s blessing. Others (like Hinduism) believe them to be an act of God being angry or disgusted. Most people, however, view them as a natural occurrence. The rainbow is formed when the sun’s rays pass through water droplets in the atmosphere, and the color of the rainbow depends on the size of the water droplets. There are many theories as to why the rainbow exists. Some believe it is a result of the Earth’s atmosphere refracting the sun’s rays. Others say it is a divine sign of God’s covenant with mankind, a sign that God has accepted us as his children and is blessing us.
The Bible mentions rainbows several times in its pages. In the Book of Amos, God tells the Israelites to be prepared for rain “with the showers of the Lord,” and in Psalm 147 (“Praise him, sun and moon, praise him, all you stars of light”) we are told to “Praise him, all you assemblies of the winds and all seas and all deeps.” Psalm 148 (“Praise him, sun and moon, praise him, all you shining stars of light”) also mentions rainbows.
the triple rainbow that is highly rare means you will share the good luck it brings with another person. Others believe it signifies three times the good luck.