Why Is Da Sky Blue ?

Question

Just Wonderin ??

Answer 1

Who is this Da Sky? I've heard of Da Vinci.

Picasso had a blue period, maybe this guy did too.

Answer 2

This is due to a process known as Rayleigh Scattering. As electromagnetic radiation falling in the visible spectrum passes through the atmosphere the longer wavelengths (blue) are more readily absorbed by gas molecules, which then re-emit the light in a totally random direction. This scattering effect causes blue light to reach your eye from all directions (rather than just directly from the original light source or as a result of reflection from any surface larger in scale than fine dust), and hence the sky will appear blue.

Answer 3

Interesting:) For a long time I used to think, and was told, that it's because the sky "reflects the color of the oceans on the earth's surface". Then I learned that it's because out of all the wavelengths of light radiated by the sun, blue is the wavelength most scattered by air molecules, so the sky appears blue (more than any other color!)
I've found a link that explains it nicely... http://www.sciencemadesimple.com/sky_blue.html

Answer 4

Two simple words:
Rayleigh Scattering.

The atmosphere is not completely transparent to light, it's more like a frosted glass window through which light gets scattered.

The amount by which the light is scattered by the atmosphere is proportional to the inverse of the fourth power of its wavelength. Put it another way, decreasing the wavelength by 2 increases scattering by 16.

Red light has a longer wavelength than blue, and so is not scattered as much. The result is that the atmosphere acts like a clear window to red light, but a frosted glass window to blue light, hence the sky appears blue.

Cheers.

Answer 5

I think its because of the reflection of the sea. But if thats true then why is the sky the same colour blue. I'm sure the colour of the North Sea isnt the same as The Pacific ocean by The Bahamas?

Answer 6

How strange I was wondering the same thing only yesturday. I have no idea why it is blue. Why not green or purple or pink? Why blue? I do not know. I had a thought but it was stupid. I thought it might have been a reflection of the seas but thats not the right answer.

Answer 7

A clear cloudless day-time sky is blue because molecules in the air scatter blue light from the sun.

Googles great isnt it !!

Answer 8

Its all about wavelength of light.
The human eye sees only a narrow segment of the electromagnetic spectrum - a range of about 400 nanometres (nm)
to about 760nm.
Difference in wavelengths within this range the eye perceives as colors.
To give an example "why is the sea blue" clear water provides maximum transparency to wavelengths of 480nm- what the eye percieves as blue.

Answer 9

Dasky is blue because he suffers with SAD or Seasonal Affective Disorder which can also be called Clinical Depression.
There are varying degrees of blueness so it can be mild or severe. Poor Dasky,I hope he gets well soon.

Answer 10

because God is a boy and not a girl or else it would be pink sky.