Reason for a rainbow?

Answer 1

The technical details of rainbow formation were first analyzed by Isaac Newton in 1665. His brilliant optics work concerning reflection and refraction certainly does not detract from the beauty and promise of the rainbow. On the contrary, Newton's scientific insights show the marvelous complexity of creation. The rainbow is a gracious pledge that God will not destroy the earth a second time with a worldwide flood (Genesis 9:11-17):

"I have set my rainbow in the clouds, and it will be the sign of a covenant between me and the earth… Never again will the waters become a flood to destroy all life." (Genesis 9:13,15).
A rainbow occurs when raindrops and sunshine cross paths. Sunlight consists of all the colors of light, which add together to make white illumination. When sunlight enters water drops, it reflects off their inside surfaces. While passing through the droplets, the light also separates into its component colors, which is similar to the effect of a glass prism. Each falling water drop actually flashes its colors to the observer for just an instant, before another drop takes its place.



A rainbow is usually seen in the opposite direction in the sky from the sun. The rainbow light is reflected to the eye at an angle of 42 degrees to the original ray of sunlight. The bow shape is actually part of a cone of light that is cut off by the horizon. If you travel toward the end of a rainbow, it will move ahead of you, maintaining its shape. Thus, there is no real end to a rainbow, and no pot of gold waiting there. Because the 42 degree angle is measured from each individual observer's eye, no two people see exactly the same rainbow. Every person is at the center of his or her own particular cone of colored light. From the high vantage point of a mountaintop or an airplane a complete circle of rainbow light sometimes can be seen.
The bright, primary rainbow has red on the outer edge and blue within. Higher in the sky there is always another, dimmer rainbow with the order of colors reversed. This secondary rainbow results from additional reflection of sunlight through the raindrops. It is most visible when there are dark clouds behind it. Look for the second bow high in the sky the next time rainbow colors appear. Some observers have even reported seeing third and fourth rainbows above the first two.

Answer 2

Rainbow is caused when Sunlight or a white light hits a surface of rain drop due internal reflection and Dispersion of light the seven colours are emitted which is termed as a rainbow

Answer 3

I saw the most beautiful rainbow during winter in Alaska, it never rained so these people who say it's rain and whatever are probably a little wrong. How can there be a rainbow in winter with no rain? For me I think it was a sign from God cause it was the time when I went to go talk with the youth about suicide and it was so very difficult for me. But after I did I went outside and saw a rainbow on top of the little mountain! I felt so much better!

But here is a little article from wiki:

http://en.wikipedia.org/wiki/Rainbow

Answer 4

A rainbow is an optical and meteorological phenomenon.... when the Sun shines onto droplets of moisture in the Earth's atmosphere , takes the form of a multicoloured arc...with red on the outside and violet on the inside
Even though a rainbow spans a continuous spectrum of colours, traditionally the full sequence of colours is most commonly cited as red, orange, yellow, green, blue, indigo and violet

Answer 5

Rainbow is formed due to the dispersion (splitting of light) of sunlight by the tiny water droplets suspended in the air.

Answer 6

Actually sunlight is the mixture of seven colours(VIBGYOR),violet,indigo,blue,green,yellow,orange,red,, so when the sunlight passes througjh the tiny droplets of rain(humidity),the light is refracted to the different colours,that's why rainbow appears which contain these seven colours....

you can watch this rainbow little bit faded ,,go to a park and look towards sun or aside to it throufh the fountain water....
All it is refraction..........

Answer 7

Dispersion. Raindrops (and water in general) have a different refractive index for different colors. When the sun is shining on rain in such a way that you can see it in the appropriate direction, the reflected and dispersed sunlight shows color.

Answer 8

God is reminding human beings of his promise to no longer drown everybody with a flood? sure could you're saying that the individuals who have been writing the bible did no longer understand what motives rainbows to look so as that they made up a thought? no

Answer 9

When the atmosphere is filled with water vapour of small water droplets or if its raining, the sunlight gets refracted and splits into 7colours. here the small dropletts of water are acting as small prisms , so they refract the lsunlight. The splitting of light into many colors is called dispersion.

Answer 10

rainbow occurs when both sun and rain r there simultaneously and the sunlight is reflected in the rain drops into different colours