Incidentally, I learned why the sky is blue: Rayleigh scattering. The sunlight hits tiny particles (< 0.1 micron) in Earth's atmosphere. At this size, blue light scatters most. When the sun seems lower to Earth's edge, it passes through more atmosphere and bigger particles, which makes other colors scatter more -- red, orange, sunset.
More or less.
Walter Lewin at MIT, 30 minutes in: https://www.youtube.com/watch?
(thanks to student parent)
Which is why, if you live in a state farther from the equator, the sunsets/sunrises will be more beautiful.
ReplyDeleteForever Wyoming.
(and because God loves blue the best of any other color in the EM spectrum.)
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