How Was the Grand Canyon Formed?

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It's a long story…
↓ More info and sources below ↓

How do you make a Grand Canyon?

Thanks to Mike from PBS Idea Channel and Jamin from PBS Game/Show for hanging out at the Grand Canyon with me!
https://www.youtube.com/user/pbsideachannel
https://www.youtube.com/user/pbsgameshow

Special thanks to Raymond Schillinger for great camera work!

I was in Arizona recently for Phoenix Comic-Con, and had the amazing pleasure of seeing one of Earth's greatest natural wonders… the Grand Canyon. More than a mile deep, and several miles across, it just defies belief. But I couldn't help but think, the Colorado River down at the bottom isn't that big. How did it cut a canyon so massive? How old is the Grand Canyon?

Here's its story
http://www.nps.gov/grca/learn/nature/geologicformations.htm

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It's Okay To Be Smart is written and hosted by Joe Hanson, Ph.DFollow me on Twitter: @jtotheizzoe
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Joe Hanson - Creator/Host/Writer… and camera for this one!
Joe Nicolosi - Director
Amanda Fox - Producer, Spotzen IncKate Eads - Producer
Andrew Matthews - Editing/Motion Graphics/Animation


Theme music: "Ouroboros" by Kevin MacLeod

Other music via APM
Stock images from Shutterstock, stock footage from Videoblocks


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Last week's video:
Why Are The Bees Dying?
https://youtu.be/rKQNx0av7eY?list=PLsmqeqKj7M-pINcPqJd8d1eRKlqm6QVjA

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Why Does February Have 28 Days? https://www.youtube.com/watch?v=AgKaHTh-_Gs
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Why Are Some People Left-Handed? https://www.youtube.com/watch?v=NPvMUpcxPSA
Where Does the Smell of Rain Come From? https://www.youtube.com/watch?v=lGcE5x8s0B8

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