Who Invented the Metric System (and Why It Isn’t As Perfect as You Think)

Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate …or the metre Try CuriosityStream and learn something new today: http://curiositystream.com/smart ↓ More info and sources below ↓ Why is a meter a meter? The meter is the world’s ultimate measure, but how did it become “the” meter? What is this measurement based on? The story of this revolution in measurement traces its roots to the French Revolution. Scientists decided that an equal and united people should have equal and united measures. So they sent a pair of young astronomers out to measure the world, and invent the meter. Little did they know they’d find nothing but war, deception, and strife along the way. As a result of this ill-fated mission, the meter carries an error that still persists today. Still think the metric system is so perfect? ----------- LEARN MORE: This episode would not have been possible without one incredible book: “The Measure of All Things” by Ken Alder. There’s so much more to this story that we couldn’t fit in the video, and this book has it all. War, madness, deception, shame, spies, the dawn of the Enlightenment, the birth of modern economics, lots more beheadings… Highly recommended! Amazon: http://amzn.to/2lNuEyD Public library: http://www.worldcat.org/oclc/893130606 MORE: Interesting chronology of the meter: http://www.dozenalsociety.org.uk/metrix/chronology.html Calculating the length of a meridian arc: http://www.cantab.net/users/michael.behrend/map_formulae/alt_tr_mercator/pages/meridian_arc.html Williams, Jeffrey H. “Quantifying Measurement: The Tyranny of Numbers.” Morgan & Claypool Publishers, 2016 Murdin, Paul. “Full meridian of glory: perilous adventures in the competition to measure the Earth.” Springer Science & Business Media, 2008. ----------- 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: Joe Hanson Producer/editor/animator: Andrew Matthews Producer: Stephanie Noone and Amanda Fox Produced by PBS Digital Studios Music via APM Stock images from Shutterstock http://www.shutterstock.com