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Home Q & A Board Discussion Off-Topic Room Curiosity Questions
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ryann ryann
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4 years ago
Why the sky color is blue?
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#1
Staff Member
4 years ago
The blue colour of the sky results from the scattering of sunlight by air molecules. The blue light has a frequency of about 7.5×1014Hz.
 

Well, in the air there are atoms, which are super-small particles, of the gases nitrogen and oxygen. These are two of the most important elements that make up the air in the sky, and they have an effect on the way we see the sky. When the white light from the sun passes through these atoms, the nitrogen and oxygen atoms cause the light to scatter.

Light travels in waves that look like ocean waves or mountains and hills.

A normal human eye, will respond to waves that have a wavelength magnitude between 390 and 700 nm. The visible spectrum doesn't contain all colors, as some result in the combination of different wavelengths, this are defined as saturated colors. While pure colors, the ones contained in the spectrum, are known as spectral colors.
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