How Does Light Actually Work?

Get Surfshark VPN at https://surfshark.deals/universe - Enter promo code UNIVERSE for 83% off and three extra months for free! -------------------------------- If you like this video, check out writer Geraint Lewis´ excellent book, co-written with Chris Ferrie: Where Did the Universe Come From? And Other Cosmic Questions: Our Universe, from the Quantum to the Cosmos https://www.amazon.com/Where-Universe-Other-Cosmic-Questions/dp/1728238811 AND check out his YouTube channel: https://www.youtube.com/c/AlasLewisAndBarnes Incredible thumbnail art by Ettore Mazza, the GOAT: https://www.instagram.com/ettore.mazza/?hl=en Animations by the superb Jero Squartini https://www.fiverr.com/share/0v7Kjv Music from Silver Maple, Epidemic Sound and Artlist. Stock footage from Storyblocks and Artgrid, images of galaxies from NASA and ESO/Hubble. World line animation By Cyp - Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=283995 00:00 Introduction 05:18 What Is Light? 12:58 An Invisible World 21:11 An Impossible Particle 30:54 Both And Neither 46:52 The Life of a Photon #quantum #relativity