How a Rainbow Works
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Uploader Comments (chris8649)
Top Comments
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amazingly educational!
4 years ago 6
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sweet..
4 years ago 5
All Comments (57)
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but i always wondered, is there a spot where the rainbow starts u know?
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Bla bla bla - this is bs.
Everyone knows rainbows comes from sonic rainbooms!
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@Inkan1969 I did not mean that, as shown in the video refraction makes the different frequencies move into different directions. The part of the sky above the rainbow for example will emit infrared light which humans can not see. This at least was my thought.
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@SGASGASGASGA Refraction doesn't change a light wave's frequency. It changes the speed that light passes through a medium. Light is slower when passing through a medium than in a vacuum. That's why it gets refracted. But again the frequency is not changed.
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@Inkan1969 I though again about this and isn't it the case that the drops in the other parts of the sky refracts the light to frequencies humans are unable to percieve?
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This will definently help me with my science fair project!
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@SGASGASGASGA Because the light rays have to reach your eye. The light rays from the rest of the sky are in directions such that they miss your eyes.
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But why is the rainbow shaped as a circle and not just straight like the raindrops? Also why do you only see them in a particular part of the sky?
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Wonderful explanation
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Great explanation!!!
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I love how in the description it says, "but are they [rainbows] things". Very educationally sound!
fmjkali 3 years ago
Also, you need a bright light pointing in the direction you are looking. And it helps if the drops of water have fallen far enough to stabilize into little spheres. You can see the rainbow effect on a sprinkler with the sun right behind you.
chris8649 3 years ago