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Write me a 500 pound essay on why the sky is blue
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The sky is blue due to a phenomenon called Rayleigh scattering. This phenomenon occurs when sunlight enters Earth's atmosphere and interacts with particles in the air, such as oxygen and nitrogen molecules.
These molecules are much smaller than the wavelength of light, and as a result, they scatter sunlight in all directions. However, shorter wavelengths of light, such as blue and violet, are scattered more effectively than longer wavelengths, such as red and orange. This is because shorter wavelengths are more easily deflected by the small particles in the atmosphere.
As a result, when sunlight enters the atmosphere, the blue and violet wavelengths are scattered in all directions, giving the sky its blue color. This is why we see the sky as blue during the day when the sun is overhead.
The scattering of light also explains why sunsets appear red or orange. When the sun is lower on the horizon, its light has to pass through more of Earth's atmosphere, which means that more of the shorter wavelengths are scattered. This leaves behind the longer wavelengths, which gives the sky a reddish or orangish hue.
In summary, the sky is blue due to the scattering of sunlight by particles in Earth's atmosphere. This process affects the way light is dispersed in the sky, resulting in the blue color that we see during the day.