seriously..how & why is it blue?
-
Woah, so much wrong in the answers here. Let me explain:
Light from the sun contains all the colors of the rainbow. When it hits the molecules in the air, it starts to wiggle their electrons around. This absorbs the light, but the wiggling electron itself will also shine light away.
How strong this effect is depends very strongly on the frequency of the light. The higher the frequency, the stronger the effect. Blue light has the highest frequency of all visible light, so far more of the blue light is emitted by the wiggling electrons than red light. The proper physical term for this is "scattering" (Rayleigh scattering, to be precise)
This ALSO explains why the EVENING sky is red: If the sun is low in the sky, the light has to travel through much more of the atmosphere than if the sun was high up. This means that most of the blue light is already sent away into space before it reaches the earth. But if you take white light from the sun and take away the blue light, what remains is red light.
Light from the sun contains all the colors of the rainbow. When it hits the molecules in the air, it starts to wiggle their electrons around. This absorbs the light, but the wiggling electron itself will also shine light away.
How strong this effect is depends very strongly on the frequency of the light. The higher the frequency, the stronger the effect. Blue light has the highest frequency of all visible light, so far more of the blue light is emitted by the wiggling electrons than red light. The proper physical term for this is "scattering" (Rayleigh scattering, to be precise)
This ALSO explains why the EVENING sky is red: If the sun is low in the sky, the light has to travel through much more of the atmosphere than if the sun was high up. This means that most of the blue light is already sent away into space before it reaches the earth. But if you take white light from the sun and take away the blue light, what remains is red light.
-
because the ocean absorbs all color from sun except blue then reflects it back up
its black at night because black = lack of light and is the true color which is why above atmosphere all sky is always black
why do people ask this after its been answered 2345467473426748768789553425368759869463… times already
its black at night because black = lack of light and is the true color which is why above atmosphere all sky is always black
why do people ask this after its been answered 2345467473426748768789553425368759869463… times already
-
Because the spectrum of light the majority of the chemicals in the atmosphere emit when energized by the sun is blue.
-
b/c of the scattering of the air molecules
-
The sky is blue because its the reflexion of the Earth's water...:)
-
Because it is a reflection of the Earths water
-
CUASE GOD MADE IT BLUE!!!!!! DUH!!!!!!!!!!!