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How Did We Figure Out What Light Is?

Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate Try CuriosityStream today: http://curiositystream.com/smart Here's a bright idea: Subscribe ►► http://bit.ly/iotbs_sub ↓ More info and sources below ↓ Beyond what we can touch, taste, smell, and hear, we experience the universe through light. But how did we come to discover light, and how did we learn light’s true nature, as the fastest thing in the universe, an electromagnetic spectrum, a wave and particle capable of the most amazing things? Here is the history of light, according to physics. ----------- LEARN MORE: “Light” by Kimberly Arcand and Megan Watzke Light: The Visible Spectrum and Beyond https://www.amazon.com/dp/163191006X/... ----------- FOLLOW US: Merch: https://store.dftba.com/collections/i... Facebook:   / 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 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