who knows the meaning of rainbow?

Answer 1

The Christian meaning is God's pact with humanity not to destroy the world by flooding again. I don't know what other traditions consider it. Interesting question.

Personally, I see it as a small miracle of physics that raises my spirits at every encounter.

Aloha

Answer 2

rainbow, arc showing the colors of the spectrum, violet inside and red outside, which appears when the sun shines through water droplets. It often appears while the sun is shining after a brief thundershower in the late afternoon or on fog layers. The sun, the observer's eye, and the center of the arc must be aligned—the rainbow appears in the part of the sky opposite the sun. The rainbow is an arc of 180° if the sun is at the horizon, and it cannot appear if the sun is high in the sky. It is caused by the refraction and reflection of rays from the sun on a “sheet” of water droplets. The light is refracted as it enters the sphere of the individual water drop, then is reflected from the drop's opposite side, and is again refracted as it leaves the drop and passes to the observer's eye. When conditions are suitable, a double rainbow may be seen; a larger, paler, secondary rainbow with colors reversed (red inside) outside the primary arc is caused by two refractions and two reflections of the ray while it is inside a drop. The “rainbows” of mist, lawn spray, and spray from a waterfall are similarly caused. The lunary rainbow, seen much less often, is usually observable soon after dark following a brief summer storm or shower when the moon is nearly full. Aristotle was first to devote serious attention to the rainbow, but his mistaken explanation of it misled thinkers for centuries. Descartes in the 17th cent. also attempted to account for the phenomenon but the correct explanation of it could not be furnished until the physics of light and its reflection and refraction were understood and the spectrum explained. In religion and art the rainbow symbolizes God's promise of mercy to mankind after the Deluge (Gen. 9.13). The Greeks and Romans called the rainbow the sign of Iris, messenger of the gods. The Inca and other Native Americans regarded the rainbow as a gift from the sun-god. There are fairy tales of searches for the pot of gold at the foot of the rainbow.

Answer 3

A rainbow is an optical and meteorological phenomenon that causes a nearly continuous spectrum of light to appear in the sky when the Sun shines onto droplets of moisture in the Earth's atmosphere. It takes the form of a multicoloured arc, with red on the outside and violet on the inside. A double rainbow includes a second, fainter, arc with colors in the opposite order.

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. It is commonly thought that indigo was included due to the different religious connotations of the numbers six and seven at the time of Isaac Newton's work on light, despite its lack of scientific significance and the poor ability of humans to distinguish colours in the blue portion of the visual spectrum.

he rainbow effect can be observed whenever there are water drops in the air and sunlight shining from behind the observer at a low altitude or angle. The most spectacular rainbow displays when half of the sky is still dark with draining clouds and the observer is at a spot with clear sky overhead. The rainbow effect is also commonly seen near waterfalls or fountains. Rainbow fringes can sometimes be seen at the edges of backlit clouds and as vertical bands in distant rain or virga. The effect can also be artificially created by dispersing water droplets into the air during a sunny day.

In a very few cases, a moonbow, or night-time rainbow, can be seen on strongly moonlit nights. As human visual perception for colour in low light is poor, moonbows are most often perceived to be white.
Rainbows may also appear in the spray of a water fountain
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Rainbows may also appear in the spray of a water fountain

The rainbow's appearance is caused by dispersion of sunlight as it is refracted by (approximately spherical) raindrops. The light is first refracted as it enters the surface of the raindrop, reflected off the back of the drop, and again refracted as it leaves the drop. The overall effect is that the incoming light is reflected back over a wide range of angles, with the most intense light at an angle of about 40°–42°. This angle is independent of the size of the drop, but does depend on its refractive index. As seawater has a higher refractive index than rain water, the radius of a 'rain'bow in a sea spray is smaller than a true rainbow. This is visible to the naked eye by a misalignment of these bows [1].

Since the water is dispersive, the amount that the sunlight is bent depends upon the wavelength, and hence colour, of the light's constituent parts. Blue light is refracted at a greater angle than red light, but because the area of the back of the droplet has a focal point inside the droplet, the spectrum crosses itself, and therefore the red light appears higher in the sky, and forms the outer colour of the rainbow. Contrary to popular belief, the light at the back of the raindrop does not undergo total internal reflection; however, light that emerges from the back of the raindrop does not create a rainbow between the observer and the Sun. The spectra emitted from the back of the raindrop do not have a maximum of intensity, as the other visible rainbows do, and thus the colours blend together and do not form a rainbow.

Answer 4

If you mean the meaning in the bible, then god made the rainbow to remind us of the flood and of his promise to Noah, that he wasn't going to flood the world again...

But I have to say I'm not religious and the scientific explaination for a rainbow is that it is white (normal) light seperated into the spectrum, you can make a rainbow by holding up a crystal to the light and rotate it until the light defracts (seperates into a rainbow).

Answer 5

the rainbow is the promise God made to the world after He flooded the Earth. He promised to never flood the Earth again and so He made the Rainbow as a sign of His promise that will not be broken.

Answer 6

that was the promise that God Jehovah made with Noah, that when he sees the rainbow he will remember about the flood and he would never flood the earth ever again. so every time we see the rainbow after the rain, that is when it rains, Jehovah also see it and remembers. also there is no pot of gold at the end of it

Answer 7

It has no meaning, it is simply light reflecting through a rain drop. You can also create a rainbow by shinning a beam of light through a prism. It's just one of the meny beautiful things that happens on Earth. Like the northern lights absolutly beautiful what swamp gas and the stars make.

Answer 8

God put the rainbow in the sky, as a covenant, to show that the world would never again be destoryed by a flood. And how beautiful it is.

Answer 9

A rainbow is simply the entire white light broken out into a spectrum -- white light is bent through atmospheric moisture and the white light separates into its constituent colors, ranging from purple to red.

Answer 10

Do you mean what a rainbow is? Its a coloured thing that appears in the sky when it rains when the sun is out...

If you believe rainbows have 'a meaning'.... you need help...