Is it possible to see more than two rainbows at once, because the most I ever seen has been two?
439914
I think I have seen three to four at one time. I just depends on the conditions after a storm.
43821
When light and water meet in the sky on a summer's day, for a few moments, a rainbow will appear. Such a beautiful sight! This phenomena of the atmosphere appears during or immediately following local showers, when the sun is shining and the air contains raindrops. A rainbow can best be seen with polarized sunglasses. We cannot follow the arc of a rainbow down below the horizon, because we cannot see those droplets in the air below the horizon. But the higher we are above the ground, the more of the rainbow circle we would see. That is why, from an airplane in flight, a rainbow will appear as a complete circle with the shadow of the aitplane in the center.\n\nThe bow is divided into bands displaying the different colors of the spectrum and is formed by the refraction and reflection of the sun's rays in drops of rain. Reflection is simply the return of light waves from the raindrop's surface. Light which appears to be white, is really made up of a mixture of red, orange, yellow, green, blue, and violet light
947663
Like a tornado funnel in a rainbow of colors..
1054336
The rainbow would be the same. it is caused when WHITE light is broken by a prism, like the water droplets. \n\nthe sea color would be a dark tint of red because the water reflects the sky(not really sure about this one but it's worth a guess.)
279945
To make a rainbow, make water mist in the air.  Use a spray bottle perhaps.  Look at the mist with a bright light source behind you shining towards the water mist.  You will see a rainbow in the water mist.  It will be easier to see the rainbow if you have a dark backbround where you are looking at the rainbow.
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I think maybe the separation is smaller than the resolving power of my eyes rather than the angular separation of my eyes. So I can't resolve the two sources and just see one bright star. \n\nBest of luck - Mike
310332
HOW A RAINBOW FORMS:\nWhen light travels from one medium to another, it bends. In other words, it changes direction and moves at different speeds in different mediums. This property of light is called “refraction”. \nWe also know that white light is made up of different colours. Different colors of light have different frequencies. Except in vacuum and air, they travel at different speeds in different mediums.\nIf you were to allow a beam of light to pass through a simple prism, it will bend when it enters the prism, when it leaves the prism it bends again. The different colours of the white light travel with different speeds inside the prism. The slanted surfaces of the prism makes the different colours emerge separately, thus in addition to bending light as a whole, a prism separates white light into its component colors. This splitting of light into its component colours is called dispersion, where prism is a dispersing element.\nThis is exactly what happens when the sun rays hit droplets of water. When the sunlight strikes a raindrop, the light is refracted (bent) because the light is moving from one medium(air) to another( water). Drops of rainwater can disperse light in the same way as a prism.. When the light comes out of the water droplet, the sun's rays (white light)have now been split into their component wavelengths (colors). In this way, each individual raindrop behaves just like a prism, dispersing white sunlight into its seven component colors and a rainbow is formed. \nThe rainbow we see is thus a result of many, many raindrops bending the sun's rays.\n\nWHY U SEE 5 COLORS:\nDont worry much! there are many colors in rainbow but we see only those who are flowing in a great band. i mean which have more thickness! some colors dont have much thickness there, so it becomes tough to see them. we generally see 5 colors where it is said that rainbow have 7 colors. sometimes we see only 3! it depends on rainbow too, and changes from rainbow to another! depends on the sun and the intensity of rain too.\n\nBut to take precautions u can go and see a doctor!
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Rainbows are 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, reflects off the back of the drop, and is 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°, regardless of the size of the drop. Since the water of the raindrops is dispersive, the amount that the sunlight is bent depends upon the wavelength (color) 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 spectra crosses itself, and thus the red light appears higher in the sky, and forms the outer color of the rainbow.\n\nA rainbow is an optical phenomenon whose apparent position depends on the observer's location. All raindrops refract and reflect the sunlight in the same way, but only the light from some raindrops reaches the observer's eye. These raindrops are perceived to constitute the rainbow by that observer. Its position is always in the opposite direction of the sun with respect to the observer, and the interior is actually a magnified image of the sun, which can be seen to be slightly brighter than the exterior. The bow is centred on the shadow of the observer's head, or more exactly at the antisolar point (which is below the horizon during the daytime), appearing at an angle of approximately 40°–42° to the line between the observer's head and its shadow (this means that if the sun is higher than 42° the rainbow is below the horizon and cannot be seen unless the observer is at the top of a mountain or a similar vantage point).\n\nSometimes, a second, dimmer rainbow is seen outside the primary bow, caused by a double reflection of the sunlight inside the raindrops, and appears at an angle of 50°–53°. Because of the extra reflection, the colours of the bow are inverted compared to the primary bow, with blue on the outside and red on the inside. (The full sequence of colors is red, orange, yellow, green, cyan, blue and violet.)\n\nA triple rainbow is even more rarely seen. A few observers have reported seeing quadruple rainbows in which a dim outermost arc had a rippling and pulsating appearance.
949120
All you need is eyes and a clear sky. I saw one about an hour ago, but that was after an hour of looking. There should be more later tonight, especially after 11:00 or 12:00. Look anywhere in the sky.
932549
i have seen something odd twice. the first one when i was a child. i woke in the night and for no reason felt compelled to go into the kitchen and look out of the window, when i did there was a round light in the sky which was stationary. after a few seconds it zig zagged with incredible speed,, 3 or 4 times bfore shooting off. i was facsinated at the time and could not believe my eyes, and for many years i doubted my own experience until one day i read about someone who spoke word for word about what i had seen in a magazine and i have never doubted myself since. this is true and those doubting thomases out there will always scoff, but i say to them scoff away it is of no consequence to me. i would love to know of any other genuine sightings.
989426
between 10am -2pm the sun is high in the sky. with a high hummity it is posible to see a rainbow all the way  around the sun
445187
A rainbow is a prismatic effect, a kind of optical illusion, because of water droplets in the air and the way the sun shines through them.
448202
If you shine a white light through a prism, the light is refracted and you get a rainbow. Thats how you can see the different wavelengths in white light.
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click here:http://en.wikipedia.org/wiki/Rainbow
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The 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.
436348
A rainbow is seen when the Sun is behind you and water is in the air in front of you. You can make one with a water hose or maybe see one in the air with rain in the area. Natural rainbows appear very large and several miles away. The top is all you can see because the ground in front of you blocks the lower portion of the rainbow. However, when seen from an airplane, rainbows are complete circles.
1018600
no. rainbows are actually circular, and therefore have no end or beginning. they seem to end at the horizon, but actually continue on the other side. i know it sounds weird, but if you see them from above, in an airplane, you can see the whole circle.