Dagmawi Babi via @like
Why is the sky blue?
When sunlight passes through the atmosphere, the shorter wavelengths get scattered more, something called Rayleigh scattering. However, wavelengths that are too short (such as x-rays and most uv) get absorbed by air, so the light from the sky is most intense at about the boundary between violet and ultraviolet. Since the human eye’s peak sensitivity is in the middle of the spectrum (yellow-green) we see the sky as blue, because that’s about the midpoint between what we can see best and what the sky actually is.
#Sky #Blue
#ScienceSaturdays
@Dagmawi_Babi
When sunlight passes through the atmosphere, the shorter wavelengths get scattered more, something called Rayleigh scattering. However, wavelengths that are too short (such as x-rays and most uv) get absorbed by air, so the light from the sky is most intense at about the boundary between violet and ultraviolet. Since the human eye’s peak sensitivity is in the middle of the spectrum (yellow-green) we see the sky as blue, because that’s about the midpoint between what we can see best and what the sky actually is.
#Sky #Blue
#ScienceSaturdays
@Dagmawi_Babi
Dagmawi Babi via @like