Why Is The Sky Blue? - Do You Know?

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Finally, a simple answer to every child's question! Paolo Di Trapani, professor of optics from the University of Insubria, explains why the sky is blue. Share this video if it helped you to understand! euronews knowledge brings you a fresh mix of the world's most interesting know-hows, directly from space and sci-tech experts. Subscribe for your dose of space and sci-tech: http://www.youtube.com/subscription_center?add_user=euronewsknowledge Made by euronews, the most watched news channel in Europe.

Published 2015-10-26 · Watch on YouTube ↗
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