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Why is the Sky Any Color?

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Published on Mar 11, 2013

Why is the sky blue? Or any color, for that matter?
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It's a question that you'd think kids have been asking for thousands of years, but it might not be that old at all. The ancient Greek poet Homer never used a word for blue in The Odyssey or The Iliad, because blue is one of the last colors that cultures pick out a word for.

In this episode, I'll tell you not only why the sky is blue, but why it's red at sunset. It turns out, those colors are all part of the same sunbeam. And when you're looking at a blue sky, you could be sharing a special moment with someone thousands of miles away. Next time a kid (or the kid inside you) wants to know why the sky is blue, you'll have science to back you up!

(We know that the Earth turns the wrong direction in the animation, sorry about that. Something weird happened when we were programming the animation and it got reversed. Or maybe time travel!)

References for this episode: http://dft.ba/-4Wus

Have an idea for an episode or an amazing science question you want answered? Leave a comment below!

Tweet at me: @jtotheizzoe
Email me: itsokaytobesmart [at] gmail [dot] com
Facebook: http://www.facebook.com/itsokaytobesmart
For more awesome science, check out: http://www.itsokaytobesmart.com

Written and hosted by Joe Hanson
Produced by Painted On Productions (http://www.paintedon.com/)

Music:
Johnny Ripper "Speak (with Ekoda)"
Kansas Bible Company "Hang Niner"

Clips used:
"Nature - Time 4 Timelapse" - http://vimeo.com/39145634
"Far and Wide" - http://vimeo.com/27027505

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Want some more great science?

Here's last week's episode: "The Auroras" http://www.youtube.com/watch?v=ZVTbol...

And check out: "Life By The Numbers"
http://www.youtube.com/watch?v=fWc46N...

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