2006-10-23 03:31:16 · 26 answers · asked by Anonymous in Education & Reference ➔ Trivia
Cos it'd look silly if it was pink!
2006-10-23 03:32:46 · answer #1 · answered by Anonymous · 1⤊ 0⤋
There are two reasons for the color of the sea; both of them contribute to the answer.
A. The sea reflects the sky.
You have probably noticed that the sea is not very blue-looking when the sky is overcast. Water reflects and scatters the light that strikes it; this is shown by the fact that you can see your reflection in puddles. When the sky is brilliant blue, the sea is also, because it reflects the blue of the sky. A good answer to why the sky is blue has already been posted at MADSci.
B. The sea refracts light just as the sky does.
Blue light is more easily bent, or refracted, than red light; thus, light refracted back from the surface of the sea appears blue. Furthermore, when you are underwater the water around you appears blue because more blue light is scattered back to your eye than red light. Here are some professional shots to show what I mean.
The scattering of light by the air, or by water, is called Rayleigh scattering.
2006-10-23 10:40:28 · answer #2 · answered by eddovey 3 · 0⤊ 0⤋
The sea is blue because it's a reflection of the sky. Sometimes the sea is grey - often in the U.K.
The sky is blue to refraction. Remember science class? Well in the morning and evening it's often red, orange, yellow (although the yellow layer is very thin). During day, it's blue. It's to do with
(among other things) the angle of sunlight - moring/evening a long angle. Day time short angle. Because the Earth is spherical, the duration of a high angle is a long time (hence mostly blue skies - excepting clouds of course)
2006-10-23 10:38:24 · answer #3 · answered by Paul E 2 · 0⤊ 0⤋
Because it reflects the sky colour, but then only if the water is relatively clear, so muddy rivers and seas will not appear very blue unless the sky is an intense colour. The Med, bieing clear, reflect the water better and you get bluer seas.
2006-10-23 11:07:16 · answer #4 · answered by mike-from-spain 6 · 0⤊ 0⤋
the sea is blue cos reflects the colour of the sky, the sky is blue cos the atmosphere lets in the blue light from the sun
2006-10-23 10:41:03 · answer #5 · answered by SCOTT B 4 · 0⤊ 0⤋
I'm glad you asked cos I've always wondered why.
I look forward to reading the answers.
PS I've just read the answers, and that doesn't explain why, in some parts of the world, the sea remains blue when the sky is cloudy.
2006-10-23 10:32:49 · answer #6 · answered by Angel 2 · 0⤊ 0⤋
no, the sea and sky are blue because the sun's light hits the atmosphere, and weeds out most other colors from our vision.
the air particles therefore appear blue to us, and translates directly into the sea.
2006-10-23 10:35:32 · answer #7 · answered by Hayakain 2 · 0⤊ 0⤋
I dont know but the sky is blue because of the length of the wavelength of blue light which gets trapped by particles in the air.
2006-10-23 14:05:49 · answer #8 · answered by vladkeren44 2 · 0⤊ 0⤋
the sea isn't actually blue but reflects the sky.
2006-10-23 10:33:00 · answer #9 · answered by Isam8 2 · 0⤊ 0⤋
Only Sir C.V. Raman could give you the right answer. He got Nobel prize for his discovery - The Raman Effect - which explains why and how the sea appears blue.
2006-10-23 14:05:10 · answer #10 · answered by Hobby 5 · 0⤊ 0⤋
If you think the sea is blue, you obviously don't live where I do!
2006-10-24 11:31:01 · answer #11 · answered by Kari 3 · 0⤊ 0⤋