why is the sky black at night why cant it be a pretty colour like pink
2007-01-07 07:24:47 · 16 answers · asked by Anonymous in Education & Reference ➔ Trivia
If it was pink you would be asking 'why is the sky pink at night why can't it be a pretty colour like black?
2007-01-07 08:22:41 · answer #1 · answered by Anonymous · 0⤊ 0⤋
The sky Is what we call the appearance of a hemisphere over our heads. On a clear day it appears blue. The depth of the "blueness" increases as we move from the horizon to the point above our head. The reason the sky is blue is due to Raleigh scattering - a phenomenon which defines the amount of scattering of light rays. Since all colors of the rainbow create a white light we ought to see white skies, but in fact blue light scatters much more than red and therefore that is why the sky appears blue ( on a cloudless day) In all cases I am assuming a clear sky in daylight.
The reason we see beautiful red sunsets is the same in reverse. The rays of the setting sun in the artificial hemishphere - have to travel further through the atmosphere. Since the blue light is scattered more it does not reach our eyes and the red light which is scatted much less does reach our eyes.
In fact the famous question all children ask their parents = why is the sky blue Daddy? is actually meaningless! It all depends what you mean. If you could take of vertically for 8 miles ( 40000 ft) you would notice the sky was a somewhat deeper blue even in the day. If you flew Concorde at say 60-65000 ft the sky would be noticeably darker and if you were an astronaut it would go from deep indigo to jet back as you traveled from 100 mls to say 300 miles up. So what we see when we look up is not really "there"
2007-01-07 07:31:22 · answer #2 · answered by Grapy 2 · 1⤊ 0⤋
"throughout sunlight hours the sky has the visual appeal of a deep blu floor, yet it is the effect of the air scattering image voltaic. [a million] there is not any "blue merchandise" above the earth in any wide-spread experience, so that is confusing to declare what merchandise the sky is. The sky is for that reason in specific circumstances defined because of the fact the denser gaseous zone of a planet's ecosystem. At night the sky has the visual appeal of a black floor or area scattered with stars. yet as quickly as we then say that the sky is the finished seen universe, it does not be the comparable element we see in the process the day."
2016-12-15 18:08:30 · answer #3 · answered by ? 4 · 0⤊ 0⤋
We can see the colour of a thing which is reflected from it. As there is no light available in the night to get reflected and reach our eye; it appears black.
2007-01-07 09:30:47 · answer #4 · answered by Pramod 3 · 0⤊ 0⤋
The sky is black because the sun has gone to bed.
2007-01-07 08:49:49 · answer #5 · answered by taxed till i die,and then some. 7 · 0⤊ 0⤋
It is just space. it is the sun and moon etc that reflect light. If you in London visit the planatarium. It has loads of really interesting info about planets etc like how many years light takes o travel from one planet to another. some times thousands of years
2007-01-07 07:39:51 · answer #6 · answered by Anonymous · 0⤊ 0⤋
Its because the sun is on the opposite side of the earth at night so there is no light.
2007-01-07 07:29:35 · answer #7 · answered by Phil H 2 · 0⤊ 0⤋
It's actually a really dark blue, and there is no sun, so there is nothing to reflect the pretty pinkness I'm afraid! ;-)
2007-01-08 07:22:39 · answer #8 · answered by Lisa G 1 · 0⤊ 0⤋
tomorow morning the sky will by pink and blue
2007-01-08 09:31:31 · answer #9 · answered by elle-même 7 · 0⤊ 0⤋
the sun rotates leaving no light. For it to be pink, there would need to be a little light. it would be nice though
2007-01-07 07:27:40 · answer #10 · answered by Anonymous · 0⤊ 0⤋