Rainbow

@manyana (294)
Singapore
November 16, 2006 1:19am CST
Do you believe in fairy tales? Is there really treasure at the end of a rainbow? I feel rainbow is one of the prettiest and amazing thing that mother nature has to offer
1 person likes this
10 responses
• Pakistan
16 Nov 06
no i don't
@manyana (294)
• Singapore
16 Nov 06
Thanks for your feedback. Here is a picture of a rainbow to cheer you up and make you smile
@manyana (294)
• Singapore
16 Nov 06
Rainbow - Colourful
Specially for you
@SnIcKasS (1378)
• Israel
16 Nov 06
Yeah, fairy tales are nice :p I always like to hear them, and I can swear, that when I was little, I saw little things from tales I've heard.
@manyana (294)
• Singapore
16 Nov 06
Ohhh!! Thats amazing. Lucky you.
@harish4u (1393)
• India
16 Nov 06
i believe it
@manyana (294)
• Singapore
16 Nov 06
thats so chweettt
• United Arab Emirates
16 Nov 06
there's definitely no treasure at the end of a rainbow......but i guess we all know that....and the scientific explanation for a rainbow...but yea they are beautiful and sometimes u do wish u were in fairy land...
@manyana (294)
• Singapore
16 Nov 06
You are right. Wish i was a fairy and in fairy land
@ntony9 (491)
• United States
16 Nov 06
Rainbow together with The Northern Lights are beauties of nature as for the gold at the end i found water.
@manyana (294)
• Singapore
16 Nov 06
Thanks for your comments
• India
16 Nov 06
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.
@manyana (294)
• Singapore
16 Nov 06
Thanks again
• India
16 Nov 06
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.[1][2] Contents [hide] 1 Scientific explanation 2 Variations 3 History of the science of rainbows 4 Rainbows in culture 4.1 Rainbows in religion and mythology 4.2 Rainbows in literature 4.3 Rainbows in photography 4.4 Rainbows in popular culture 5 Remembering the sequence of colours 6 See also 7 References 7.1 Other sources 8 External links [edit] Scientific explanation 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. 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.
@manyana (294)
• Singapore
16 Nov 06
Thanks for the detailed explanation
@xtinelee (3378)
• Singapore
16 Nov 06
I used to believe in fairytales, until I realized that fairytales were created by humans themselves. But there's def no treasure at the end of the rainbow. I believe the treasure is the rainbow itself, after the rain. :D
@manyana (294)
• Singapore
16 Nov 06
Thanks for the lovely comments and wish you all the best in your life and hope you find what you are looking for.
• United States
8 Dec 06
I have seen a rainbow. I've even seen two rainbow at the same time. I was shopping and was about to go into the store. I looked into the sky and didn't notice it at first. I had to be at the right angle. So, when I did notice it, I took out my camera and took a picture. It was extremly pretty.
• United States
8 Dec 06
I have seen a rainbow. I've even seen two rainbow at the same time. I was shopping and was about to go into the store. I looked into the sky and didn't notice it at first. I had to be at the right angle. So, when I did notice it, I took out my camera and took a picture. It was extemly pretty.