Where On Earth Do You Weigh The Least?

You can learn more at https://curiositystream.com/smart SUBSCRIBE so you don’t miss a video! ►► http://bit.ly/iotbs_sub ↓↓↓ More info and sources below ↓↓↓ You may have heard that a kilogram of feathers weighs the same as a kilogram of steel, but that all depends on where you weigh them. This video is all about the difference between mass and weight, and how weirdly awesome Earth’s gravity really is. REFERENCES: https://en.wikipedia.org/wiki/Mass_versus_weight http://curious.astro.cornell.edu/about-us/42-our-solar-system/the-earth/gravity/94-does-your-weight-change-between-the-poles-and-the-equator-intermediate https://en.wikipedia.org/wiki/Equatorial_bulge http://www.cleonis.nl/physics/phys256/equatorial_bulge.php https://en.wikipedia.org/wiki/Geoid https://gracefo.jpl.nasa.gov/ http://www2.csr.utexas.edu/grace/publications/fact_sheet/4.html ----------- FOLLOW US: Twitter: @DrJoeHanson @okaytobesmart Instagram: @DrJoeHanson @okaytobesmart Merch: https://store.dftba.com/collections/its-okay-to-be-smart Facebook: http://www.facebook.com/itsokaytobesmart BOOKS WE’VE FEATURED: http://smart-books.tumblr.com/ ----------- It’s Okay To Be Smart is hosted by Joe Hanson, Ph.D. Director: Joe Nicolosi Researcher: Matt Caplan, Ph.D. Creative Director: David Schulte Editors/animators: Derek Borsheim Executive Producer: Amanda Fox Producer: Stephanie Noone Produced by PBS Digital Studios Music via APM Stock images from Shutterstock http://www.shutterstock.com