2007-12-14 07:36:16 · 7 answers · asked by Shan F 2 in Science & Mathematics ➔ Earth Sciences & Geology
The "sky" is not really any color, but it looks blue to our eyes. This is because blue color wavelengths are short and spiky and can reflect off all the particles in the atmosphere. They also travel faster, so when we look at the sky we see the fast moving blue waves reflecting off the particles in the atmosphere, making the sky look blue. At sunset, the sky looks red because the sun is at an angle to your eyes so that it passes through a thick layer of atmosphere. Red wavelengths are long and smooth, so it is hard for them to reflect of the particles of the atmosphere. All the other colors are already reflected at sunset off the other particles in the thick layer near you, so all that is left for you to see are the red waves.
2007-12-14 07:42:30 · answer #1 · answered by A A 3 · 0⤊ 0⤋
The sky is white when the weather is clear, it is blue when the rain is coming and it is dark when it is raining.
Sunlight is made up of all the colors of the rainbow:
red, orange, yellow, green, blue, violet.
The gas molecules in the atmosphere interact with the sunlight before the light reaches our eyes.
The gas molecules in the atmosphere scattered the higher-energy (high frequency) blue portion of the sunlight more than they scatter the lower-energy red portion of the sunlight ( this is called Rayleigh scattering, named for the physicist Lord John Rayleigh). The Sun appears reddish-yellow and the sky surrounding the Sun is colored by the scattered blue waves.
To understand why the sky is blue, we must consider what happens when blue light is absorbed by gas molecules in the atmosphere. When blue light is absorbed, it is scattered in various directions, radiating throughout the sky. Since it is scattered so far and wide, the sky is blue no matter where you are positioned and where we choose to look. Sunlight consists of a full range of colors. However, the sky is blue because the efficiency with which blue light is scattered allows it to dominate what we see when we look up.
2007-12-14 08:44:44 · answer #2 · answered by Anonymous · 0⤊ 0⤋
The sky is blue because God made it blue and black at night.
2007-12-14 09:45:31 · answer #3 · answered by latinmami800 2 · 0⤊ 0⤋
Both.
Blue during the day. Black at night.
Why? http://answers.yahoo.com/search/search_result;_ylt=AkQ7xqAgvBWPz116SKodxgIazKIX;_ylv=3?p=why+is+the+sky+blue
6,012 hits.
2007-12-14 07:58:08 · answer #4 · answered by Lady Geologist 7 · 0⤊ 0⤋
its blue cuz if u look up you c blue
2007-12-14 07:40:23 · answer #5 · answered by azybabi 2 · 0⤊ 0⤋
i support the AA guy.well brother,what you see is not always what u get
2007-12-14 08:03:26 · answer #6 · answered by shammi_f1 2 · 0⤊ 0⤋
it snot...get it? it's not! lmao
2007-12-14 07:41:02 · answer #7 · answered by ME 1 · 0⤊ 0⤋