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March 15, Legend has it that at the end of every rainbow sits a leprechaun, described as being no more than 2 feet tall. Leprechauns supposedly spend all their time busily making shoes, and legend has it that if you can keep your gaze fixed on them long enough that they are compelled to reveal the whereabouts of their pot of gold.
The idea that a pot of gold can be found at the rainbow's end originated somewhere in old Europe. In my plus-year-career as a broadcast meteorologist, I've seen many rainbows, but have yet to find any leprechauns But the colorful spectacle in its own right has certainly generated many similar legends and anecdotes through the generations.
According to the Bible, the rainbow is the sign of God's promise to mankind that he will never again flood the Earth. Indeed, rainbows often indicate that the rain has passed. Generally, it will be sunny when you see a rainbow, but rain clouds usually cumulonimbus will be just a short distance away.
In order to see a rainbow you'll need two ingredients: Prism of water Sunlight is a mixture of colors.
When it passes through a glass prism, some of the light is bentor refracted, more than other portions. Light leaving the prism spreads out into a continuous band of colors called a spectrum.
Colors go from red, which is bent least, through orange, yellow, green, and blue all the way to violet, which is bent the most. And just as sunlight passing through a prism is bent, so is sunlight passing through drops of water. This produces an atmospheric solar spectrum in the sky for all to see: A rainbow is simply a group of circular or nearly circular arcs of color that appear as a huge arch in the heavens.
The raindrops act like miniature prisms, refracting or breaking sunlight into various colors as well as reflecting it to produce the spectrum. Rainbows are frequently seen in the wake of a rainstorm.
They come when the sunlight breaks through rain clouds. You can create an artificial rainbow for yourself with a garden hose. Simply stand with your back to the sun and adjust the hose to a fine spray.
Rainbows can also be seen against the spray of a waterfall. A single, or primary, rainbow has red on the outside or top of the bow and blue on the inside.
Usually the radius of the arc is equal to about one-fourth of the visible sky, or 42 degrees, to the red. When there are showers nearby, simply look in the part of the sky opposite the sun at a degree angle from your shadow; if there is a rainbow, that is where it will be.
The primary bow is due to light that enters the upper part of the drops and leaves after one internal reflection, so this bow is always brighter than the secondary bow where sunlight is reflected twice within raindrops.
Sometimes a secondary bow forms outside the primary. It will be fainter, with the colors reversed: The secondary rainbow forms at a degree angle from your shadow; it's always fainter and usually disappears more quickly than the primary.
The region between the two bows appears relatively dark, for it lacks entirely both the once- and the twice-reflected rays. There is even evidence for a third or tertiary rainbow that has been seen on rare occasions, and a few observers have even reported seeing quadruple rainbows in which a dim outermost arc had a rippling and pulsating appearance.
Descartes supposedly made an accurate calculation concerning the paths that light rays took at different points through a glass globe of water simulating a raindrop thereby determining their angles of refraction; it was the solution to a mathematical problem that had eluded scientists for two millennia and was the key to explaining the phenomenon of the rainbow.
But notice that I said that Descartes "supposedly" made that calculation. As it turned out, Willebrord Snell, a Dutch astronomer and mathematician, had discovered the mathematical law of refraction 16 years prior to Descartes' dissertation on the subject.
Snell, however, failed to publish his findings and died in Then, about 80 years later, after Snell's notes were discovered, controversy arose when some accused Descartes of having somehow seen Snell's manuscript and taken his findings for his own.
The end result was that in the West, especially in the English-speaking countries, the law of the refraction of light became known as Snell's Law, while in France it is referred to as Descartes' Law.Oct 21, · analysis synthesis essay outline city country essay korean essay on censor of media mass the cave allegory essay jokes essay topics economy spain's about yourself essay corruption in nepal.
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Rainbow’s End explores the key ideas and issues surrounding belonging and how they are received and portrayed. I was standing at the entrance of a swanky bar on an unremarkable Wednesday night in September the first time I saw the light hit his face.
Every cell in my. Rainbows Sayings and Quotes. Below you will find our collection of inspirational, wise, and humorous old rainbows quotes, rainbows sayings, and rainbows proverbs, collected over the years from a variety of sources.
Rainbows are not limited to the dispersion of light by raindrops. The splashing of water at the base of a waterfall caused a mist of water in the air that often results in the formation of rainbows. A backyard water sprinkler is another common source of a rainbow.
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