How Was the Grand Canyon Formed?

Описание: Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate

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!
   / pbsideachannel  
   / 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/...

Have an idea for an episode or an amazing science question you want answered? Leave a comment or check us out at the links below!
Follow on Twitter:   / okaytobesmart  
  / jtotheizzoe  
Follow on Tumblr: http://www.itsokaytobesmart.com
Follow on Instagram:   / jtotheizzoe  

-----------------
It's Okay To Be Smart is written and hosted by Joe Hanson, Ph.DFollow me on Twitter: @jtotheizzoe
Email me: itsokaytobesmart AT gmail DOT com
Facebook:   / itsokaytobesmart  
Google+ https://plus.google.com/+itsokaytobes...
For more awesome science, check out: http://www.itsokaytobesmart.com
Produced by PBS Digital Studios:    / pbsdigitalstudios  

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


-----------------

Last week's video:
Why Are The Bees Dying?
   • Why Are The Bees Dying?  

More videos:
Why Does February Have 28 Days?    • Why Does February Only Have 28 Days?  
Why Vaccines Work    • Why Vaccines Work  
Why Are Some People Left-Handed?    • Why Are Some People Left-Handed?  
Where Does the Smell of Rain Come From?    • Where Does the Smell of Rain Come From?