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Why It Is What Time It Is (The History of Time)
- Published_at:2017-10-17
- Category:Education
- Channel:It's Okay To Be Smart
- tags: science pbs digital studios pbs joe hanson it's okay to be smart its okay to be smart it's ok to be smart its ok to be smart public broadcasting service nature documentary itsokaytobesmart history brief history of time history of time how to tell time timekeeping clocks watch repair 60 minutes hour minute second sundial galileo time math arrow of time
- description: A brief history of time… Don’t miss our next video! SUBSCRIBE! ►► http://bit.ly/iotbs_sub ↓↓↓ More info and sources below ↓↓↓ How did we come up with our system of telling time? Why do we divide the day into 24 hours of 60 minutes each, and put 60 seconds in each minute? Where does the definition of a second come from? And who decides what clock shows the correct time? There’s clearly a lot of questions when it comes to time. READ MORE: “Galileo’s Pendulum” - Roger Newton http://amzn.to/2yQri5E “Revolution in Time” - David Landes http://www.worldcat.org/oclc/890167780 ----------- FOLLOW US: Merch: https://store.dftba.com/collections/its-okay-to-be-smart Facebook: http://www.facebook.com/itsokaytobesmart Twitter: @okaytobesmart @DrJoeHanson Tumblr: http://www.itsokaytobesmart.com Instagram: @DrJoeHanson Snapchat: YoDrJoe ----------- It’s Okay To Be Smart is hosted by Joe Hanson, Ph.D. Director: Joe Nicolosi Writer: Matt Caplan, Ph.D. and Joe Hanson, Ph.D. Editor/animator: David Schulte Producer: Stephanie Noone and Amanda Fox Produced by PBS Digital Studios Music via APM Stock images from Shutterstock http://www.shutterstock.com
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2017-10-19 | 178,001 | 10,461 | 795 | (,#23) (,#23) |