You can find out more about the colours of the rainbow What are the colours of the rainbow? There are many different variations on conventional rainbows that form in certain conditions.
You can find more information on them by clicking the links below How are rainbows formed? It's all in the geometry Rainbows are formed when sunlight is scattered from raindrops into the eyes of an observer. Sailors have long known that rainbows can be used to predict the weather. Generally speaking, showers and thunderstorms move from west to east, thus verifying the old adage:.
In the morning the sun is in the east; to see a rainbow you must be facing toward the west where it's raining. Since showery weather usually comes from the west, take warning from the morning rainbow. At night well, actually more like late afternoon, but "afternoon" doesn't rhyme with "delight" the sun is in the western sky; after a shower or thunderstorm has already passed you by, it usually is retreating toward the east, where you'll see your rainbow. And because showers are more frequent in the late afternoon than in the early morning, late-afternoon rainbow sightings are far more frequent than in the morning and it's for this reason that the appearance of a rainbow is usually associated with the onset of improving weather.
If the sun is setting or rising, a full half-bow can be seen. If the sun happens to be degrees or higher above the horizon you won't be able to see a rainbow because it would be below the horizon. Your clenched fist held at arm's length is roughly equal to 10 degrees; so if the sun is approximately "four fists" above the horizon you won't see a rainbow. The only possibility of sighting a rainbow at that time would be from an airplane or from the summit of a tall mountain.
An airplane would provide the best opportunity for catching sight of a full degree rainbow projected against the ground, but that's a sight that only a few have been privileged to see. Another type of bow colored red, or red and green may appear with primary and secondary bows.
Occasionally, several bands of color can be seen just within the primary rainbow. These extra bands are known as supernumerary rainbows, and they were explained in by the British scientist Thomas Young when he realized that light consisted of waves. They are due to the diffraction deflection of light. Once inside, I looked out my second-story back window and there it was, across the street, in a trucking yard, a mist of rainbow colors.
Never could figure it. The end of a rainbow in a trucking yard across the street from a Commerce City, Colorado flop house. Moon Phase Calendar. Email Facebook 39 Pinterest Twitter. What causes rainbows to form? Here are 5 fun and interesting facts about rainbows! About the author Related Posts. Jaime McLeod. Finding Dimes?
Previous Post. Next Post. Recipe Rating Recipe Rating. Newest Oldest Most Voted. Inline Feedbacks. Allen darnell. Susan Higgins. Reply to Allen darnell. Hi Allen, thanks for sharing the story. It must have been an awesome sight!
Jeffrey Tenny. Reply to Brian. Reply to Stephen. I always thought the rainbow was a sign? Amber Gottman. I have seen an inverted rainbow. What is the explanation for this. Reply to Joanne. Tom Chichon. Michael Manicone. Reply to Dora. Some of those wavelengths get bent more than others when the light enters the water droplet. Violet the shortest wavelength of visible light bends the most, red the longest wavelength of visible light bends the least. So when the light exits the water droplet, it is separated into all its wavelengths.
The light reflecting back to you, the observer with the Sunlight coming from behind you, from the water droplets will appear separated into all the colors of the rainbow!
Violet will be on the bottom and red on the top. A secondary rainbow appears if the sunlight is reflected twice inside the water droplets. Secondary rainbows are fainter, and the order of the color is reversed, with red on the bottom.
Credit: Leonardo Weiss via Wikimedia Commons.
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