reblogged 1 year ago on 29 March 2013 WITH 192 notes »reblog
via scinerds // originally skeptv

scinerds:

skeptv:

It’s Okay to be Smart - Why is the Sky Any Color?

Why is the sky blue? 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

by It’s Okay to be Smart.

Joe’s Youtube series is turning out to be pretty informative!

  1. metanoiatoquerencia reblogged this from scinerds
  2. queenofweapons reblogged this from ivandmitriandnikolaitheai
  3. l0vabl3indig0child reblogged this from heavenlybutterfly
  4. littlebiologist reblogged this from scinerds
  5. the-goldstandard reblogged this from scinerds
  6. felinedatabase reblogged this from scinerds
  7. amystar653 reblogged this from scinerds
  8. laikas-owner reblogged this from sagansense
  9. insanenikral reblogged this from moss-piglets
  10. chromiumantimony reblogged this from scinerds
  11. george-allan reblogged this from scinerds