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Currently Playing: You CANNOT See Through Walls (or Windows) with a Thermal Camera.

Visit https://brilliant.org/ScienceAsylum/ to get started for free and get 20% off your annual subscription. Infrared light can allow you to see many normally invisible things, but can it allow you to see through walls? Let's take a look at the flow of heat using a thermal camera and also using a simulation based on the heat equation. Nick Lucid - Host/Writer/Editor/Animator ______________________________ AFFILIATE LINKS FLIR ONE Pro (Android): https://amzn.to/3tsigXa FLIR ONE Pro (iPhone): https://amzn.to/3E409vw FTC Disclosure: These are affiliate links, which means I may receive a commission for purchases made through my links. ________________________________ VIDEO ANNOTATIONS/CARDS Quantum Entanglement: https://youtu.be/hiyKxhETXd8 ________________________________ RELATED YOUTUBE VIDEOS 3blue1brown on Heat Equation: https://youtu.be/ToIXSwZ1pJU ________________________________ SUPPORT THE SCIENCE ASYLUM Patreon: http://www.patreon.com/ScienceAsylum YouTube Membership: https://www.youtube.com/channel/UCXgNowiGxwwnLeQ7DXTwXPg/join Advanced Theoretical Physics (Paperback): http://www.lulu.com/shop/nick-lucid/advanced-theoretical-physics-a-historical-perspective/paperback/product-24250687.html Advanced Theoretical Physics (eBook): https://gumroad.com/l/ubSc Merchandise: https://www.scienceasylum.com ________________________________ HUGE THANK YOU TO THESE SUPPORTERS Asylum Orderlies: Dhruv Singhal, Fabio Manzini, Medec Hurtz Einsteinium Crazies: Bosphorus, Eoin O'Sullivan, Ilya Yashin, Jonathan Lima, Joseph Salomone, OnlineBookClub, Sean K, Wacky Plutonium Crazies: Al Davis, Compuart, Ellis Hall, Kevin MacLean, Rick Myers, Vid Icarus Platinum Crazies: Benjamin Dixon, Benjamin Reynolds, Clayton Bruckert, David Johnston, James Coley, Jon Adams, Jonas Wepeel, Jonathan Reel, Marino Hernandez, Mikayla Eckel Cifrese, Mr. Orn Jonasar, Olga Cooperman, Stephen Blinn, Stephen Gailey ________________________________ OTHER SOURCES https://en.wikipedia.org/wiki/Thermal_diffusivity https://tutorial.math.lamar.edu/classes/de/solvingheatequation.aspx ________________________________ LINKS TO COMMENTS https://www.youtube.com/watch?v=hiyKxhETXd8&lc=Ugx2B10yttycigUKOu94AaABAg https://www.youtube.com/watch?v=hiyKxhETXd8&lc=UgxyPMGHbaoarGOefZt4AaABAg https://www.youtube.com/watch?v=hiyKxhETXd8&lc=UgyYDBJ7sGCRD7Hdi5l4AaABAg ________________________________ TIME CODES 00:00 Introduction 00:36 What is infrared light? 01:22 Can you see through walls? 03:44 The Heat Equation 05:13 Experiment Time! 08:14 Revisiting the Heat Equation 09:49 The Final Experiment 10:17 Sponsor Message 11:10 Outro 11:39 Featured Comment