Friday, January 21, 2011

Everyday Mind Freak 1/21/2011

Today's everyday mind freak is brought to you by the Adler Planetarium. "Proving that you're not the only star in the universe since 1930."

Why is the day sky blue? Not because of the oceans. Nitrogen, which makes up 78% of the atmosphere, scatters blue light from the sun the most efficiently which causes us to perceive the sky as blue.

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