English Deutsch Français Italiano Español Português 繁體中文 Bahasa Indonesia Tiếng Việt ภาษาไทย
All categories

why is the sky blue and green?

2006-09-25 04:14:49 · 13 answers · asked by CarAudioJunkie 1 in Science & Mathematics Astronomy & Space

13 answers

Your drinking to much wine not smoking enough weed

2006-09-25 04:15:49 · answer #1 · answered by prizelady88 4 · 0 1

The sky is blue partly because air scatters short-wavelength light in preference to longer wavelengths. Where the sunlight is nearly tangent to the Earth's surface, the light's path through the atmosphere is so long that much of the blue and even yellow light is scattered out, leaving the sun rays and the clouds it illuminates red, at sunrise and sunset.

Scattering and absorption are major causes of the attenuation of radiation by the atmosphere. Scattering varies as a function of the ratio of the particle diameter to the wavelength of the radiation. When this ratio is less than about one-tenth, Rayleigh scattering occurs in which the scattering coefficient varies inversely as the fourth power of the wavelength. At larger values of the ratio of particle diameter to wavelength, the scattering varies in a complex fashion described, for spherical particles, by the Mie theory; at a ratio of the order of 10, the laws of geometric optics begin to apply.

Individual gas molecules are too small to scatter light effectively. However, in a gas, the molecules move more or less independently of each-other, unlike in liquids and solids where the density is determined the molecule's sizes. So the densities of gases, such as pure air, are subject to statistical fluctuations. Significant fluctuations are much more common on a small scale. It is mainly these density fluctuations on a small (tens of nanometers) scale that cause the sky to be blue.

2006-09-26 02:53:45 · answer #2 · answered by Anonymous · 0 0

the sky is blue partly because air scatters short-wavelength light in preference to longer wavelengths.

Combined, these effects scatter (bend away in all directions) some short, blue light waves while allowing almost all longer, red light waves to pass straight through.

When we look toward a part of the sky not near the sun, the blue color we see is blue light waves scattered down toward us from the white sunlight passing through the air overhead.

Near sunrise and sunset, most of the light we see comes in nearly tangent to the Earth's surface, so that the light's path through the atmosphere is so long that much of the blue and even yellow light is scattered out, leaving the sun rays and the clouds it illuminates red.

2006-09-25 04:22:18 · answer #3 · answered by merkkrem101us 3 · 2 0

the color of the sky is determined by light from the sun reflecting through our atmosphere. check into how prizms break up light. this will let u know why sunlight is different colors at different times of the day. for instance, the sky is red in the evening and morning, due to light going thru more of the atmosphere before reaching u!!

2006-09-25 05:51:41 · answer #4 · answered by ? 4 · 0 0

Because of the lengths of the waves that come from the earth. the longest wave is Blue! and therefore the things we use on earth are predominately (although not to our eyes) blue. the shorter wave lengths are just lost in space whereas the blue is refracted. as for green the only thing i can presume is that green is similar to blue and has the similar length wavelengths.

hope that helps

2006-09-25 04:21:24 · answer #5 · answered by Beautiful Elmo 2 · 1 0

All colors have wavelengths that are diffused by oxygen, and nitrogen since blue has the shortest wave length its reflected up to ten times more than any other color. That is why the sky appears blue.

2006-09-25 04:18:25 · answer #6 · answered by ? 3 · 1 0

short solutions: Grass is eco-friendly as a results of chlorophyll, the sky is blue as a results of scattering of sunshine through air debris. lengthy answer: shades is how we locate the mild of diverse wavelength. the shade of issues relies upon on which wavelengths of sunshine they soak up and which wavelengths they mirror. Chlorophyll absorbs usually blue and pink elements of sunshine spectrum, so we see the golf eco-friendly mild that it reflects. it really is why grass and tree leaves are eco-friendly. debris contained in the ambience are very very small, they are smaller than the wavelength of the blue component of sunshine spectrum, yet are larger than the wavelength of the pink section. so that they soak up the pink shade and scatter/mirror the blue shade. it really is why the sky on a sunny day looks blue.

2016-11-23 20:40:49 · answer #7 · answered by ? 4 · 0 0

The sky is blue and green because is comprising of different of molecules of chemical
How could you ask such undevelop question?

2006-09-25 04:16:37 · answer #8 · answered by problemsolver86 3 · 0 1

it is bcause of scattering of light obeying Raleighs law of scattering of light. Between all the colours blue &violet colours predominates over the oher colours.but violet is not visible to us so thats why sky appears blue.

2006-09-25 04:21:13 · answer #9 · answered by Anonymous · 1 0

it has to do with the ice caps reflect the light of the sun and turns it blue, the sky is actually black

2006-09-25 04:16:33 · answer #10 · answered by jack jack 7 · 0 2

the same reason plants are green.
They reflect all light colours but green, so the green gets cast onto your eye...

2006-09-25 04:45:04 · answer #11 · answered by James N 1 · 0 0

fedest.com, questions and answers