2007-03-20 00:52:18 · 13 answers · asked by Anonymous in Science & Mathematics ➔ Earth Sciences & Geology
Sky luminance has nothing to do with reflection off the ocean. The earth atmosphere diffuse the "white light" from the sun. The shorter wavelengths of light pass though, but not the longer wavelength (red). Atmosphere also acts as a median (or index) of refraction. Thus, during indirect sunlight hours, the sky color varies, because this is not the simple "direct sun beam acts on diffusive object" matter.
By the way, if the sky is blue due to the reflection off the sea, why isn't it blue in the morning? Ever heard of fish sky or red dawn? Also, if a giant water body is contaminated with copper, should the sky look red/orange? Should the sky look green over a giant lake that has great eutrophication? Before answering (and giving wrong answer), at least put a little effort to it. Optics is one of the hardest subject to understand.
As for bible thumpers, there is a religious forum on yahoo answer, too.
2007-03-20 04:36:33 · answer #1 · answered by tienyutai 3 · 0⤊ 0⤋
The blue color of the sky is due to Rayleigh scattering. As light moves through the atmosphere, most of the longer wavelengths pass straight through. Little of the red, orange and yellow light is affected by the air.
However, much of the shorter wavelength light is absorbed by the gas molecules. The absorbed blue light is then radiated in different directions. It gets scattered all around the sky. Whichever direction you look, some of this scattered blue light reaches you. Since you see the blue light from everywhere overhead, the sky looks blue.
2007-03-20 01:01:09 · answer #2 · answered by Anonymous · 2⤊ 1⤋
refraction.... the light from the sun refracts (bends) as it enters earths atmoshphere....
it is not the reflection of the seas as some may think.. the seas are blue as a reflection of the sky
2007-03-20 01:01:48 · answer #3 · answered by wolfwagon2002 5 · 1⤊ 1⤋
Water droplets in the atmosphere act as a prism, and the color you see you from earth's surface is blue.
2007-03-20 01:00:29 · answer #4 · answered by It's Kippah, Kippah the dawg 5 · 0⤊ 1⤋
The blue is a direct result of different gases in the
atmosphere and the stratosphere............................
Everything in space has either a gas or chemical
base or alternatively a geological base....................
2007-03-20 01:51:52 · answer #5 · answered by gorglin 5 · 0⤊ 0⤋
It's not blue.
2007-03-20 01:08:27 · answer #6 · answered by Unicornrider 7 · 1⤊ 0⤋
i think coz of the colour of rainbow when mixed up and we see through eyes our retina just experiences it blue.
2007-03-20 02:28:05 · answer #7 · answered by hotty 1 · 0⤊ 1⤋
Because if it were green, you would not know where to stop cutting the grass.
2007-03-20 03:10:54 · answer #8 · answered by uisignorant 6 · 1⤊ 0⤋
because of the reflection of all bodies of water.as simple as that...
2007-03-20 02:28:12 · answer #9 · answered by nikaramirez30 2 · 0⤊ 1⤋
its a reflection from the sea
2007-03-20 00:56:13 · answer #10 · answered by Anonymous · 0⤊ 3⤋