Somewhere between 1926 and 1950, we gave up the concept of particles in favor of quantum fields. In this video, I explain the motivations for that to a non-physicist: my wife. Nick Lucid - Host, Writer, Editor, Animator Eric Aspling - Consulting Expert, Fact Checker ________________________________ VIDEO ANNOTATIONS/CARDS Quantum Superposition: https://www.youtube.com/watch?v=ZUipVyVOm-Y Older video on Quantum Fields: https://www.youtube.com/watch?v=Y7Ac8zKTD-E ________________________________ RELATED YOUTUBE VIDEOS ZAP Physics on Feynman Diagrams: https://www.youtube.com/watch?v=BCBDclSOuxU PBS Space Time on Feynman Diagrams: https://www.youtube.com/watch?v=fG52mXN-uWI https://www.youtube.com/watch?v=oQ1WZ-eJW8Y ScienceClic on Feynman Diagrams: https://www.youtube.com/watch?v=X-FEU4mQWtE Domain of Science on Feynman Diagrams: https://www.youtube.com/watch?v=oBNZOOuqO6c ________________________________ SUPPORT THE SCIENCE ASYLUM Patreon: http://www.patreon.com/ScienceAsylum YouTube Membership: null 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: http://shop.spreadshirt.com/scienceasylum/ ________________________________ HUGE THANK YOU TO THESE SUPPORTERS Asylum Counselors: Bosphorus Asylum Orderlies: Dhruv Singhal, Medec Hurtz Einsteinium Crazies: Benjamin Sharef, Eoin O'Sullivan, Ilya Yashin, Jonathan Lima, Joseph Salomone, Kevin Flanagan, Sean K Plutonium Crazies: Al Davis, Compuart, Ellis Hall, Fabio Manzini, Kevin MacLean, LT Marshall, Rick Myers, Vid Icarus Platinum Crazies: Bart Barry, Christopher Bennett, Christopher Little, Clayton Bruckert, David Johnston, Jonathan Reel, Joshua Gallagher, Marino Hernandez, Mikayla Eckel Cifrese, Mr. Orn Jonasar, Olga Cooperman, Thomas V Lohmeier ________________________________ SOURCES https://www.forbes.com/sites/startswithabang/2019/04/25/this-is-why-quantum-field-theory-is-more-fundamental-than-quantum-mechanics/ https://plato.stanford.edu/entries/quantum-field-theory/qft-history.html General Scientific Papers: https://doi.org/10.1119/1.4789885 https://doi.org/10.1119/1.4812316 Feynman's Papers: https://journals.aps.org/pr/abstract/10.1103/PhysRev.76.769 https://journals.aps.org/pr/abstract/10.1103/PhysRev.80.440 https://authors.library.caltech.edu/3520/1/FEYpr49b.pdf Overview of Feynman Rules: https://particle.phys.uvic.ca/~jalbert/424/lecture16r.pdf https://web2.ph.utexas.edu/~vadim/Classes/2008f/QED.pdf https://www.physics.mcgill.ca/~jcline/qft1b.pdf Fundamental Constants: https://pml.nist.gov/cuu/Constants/ ________________________________ STUDIO GEAR AFFILIATE LINKS Camera https://amzn.to/3RfgOCk Studio Recorder https://amzn.to/3HkQoue Camera Tripod https://amzn.to/3kRt3Jk Microphone Stand https://amzn.to/3JnoqAQ Panel Light https://amzn.to/3Jl3dHT Studio Blanket https://amzn.to/3kTuAhZ Clamp Mount https://amzn.to/3HjucRu FTC Disclosure: These are affiliate links, which means I may receive a commission for purchases made through my links. ________________________________ LINKS TO COMMENTS https://www.youtube.com/watch?v=-cfN-QxJkjU https://www.youtube.com/watch?v=-cfN-QxJkjU https://www.youtube.com/watch?v=-cfN-QxJkjU ________________________________ IMAGE/VIDEO CREDITS Richard Feynman Portrait: https://repository.aip.org/islandora/object/nbla%3A301041 Louis de Broglie: https://commons.wikimedia.org/wiki/File:Broglie_Big.jpg Erwin Schrodinger: https://repository.aip.org/islandora/object/nbla%3A308604 Werner Heisenberg: https://repository.aip.org/islandora/object/nbla%3A298891 ________________________________ TIME CODES 00:00 Cold Open 00:12 Getting a baseline 00:55 Matter and Light: What's it made of? 02:38 What is a Field? 04:09 What is a Wave? 05:33 What is a Quantum Field? 07:50 Quantum Fields Visualized 10:26 Feynman Diagrams Explained 12:20 Virtual Particles Explained 13:50 How to use Feynman Diagrams 15:05 Quantum Electrodynamics 18:15 What is its purposes? 18:40 Do particles exist? 19:14 Featured Comment