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October 5, 2012 06:47 pm PDT
Original Link: http://feeds.boingboing.net/~r/boingboing/iBag/~3/FD1tTm4zuwA/why-is-the-sky-dark-at-night.html
Why is the sky dark at night?
So, the sky looks blue because of the particular gases in our atmosphere reflect and scatter the blue wavelengths of light from the Sun. Fair enough. But that leads directly to a second question that, I'm ashamed to say, I never really thought to ask — why doesn't the light from all the stars in [...]Original Link: http://feeds.boingboing.net/~r/boingboing/iBag/~3/FD1tTm4zuwA/why-is-the-sky-dark-at-night.html
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