What Are Particles? Do They ACTUALLY Exist?!

What Are Particles? Do They ACTUALLY Exist?!

323.306 Lượt nghe
What Are Particles? Do They ACTUALLY Exist?!
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://youtu.be/ZUipVyVOm-Y Older video on Quantum Fields: https://youtu.be/Y7Ac8zKTD-E ________________________________ RELATED YOUTUBE VIDEOS ZAP Physics on Feynman Diagrams: https://youtu.be/BCBDclSOuxU PBS Space Time on Feynman Diagrams: https://youtu.be/fG52mXN-uWI https://youtu.be/oQ1WZ-eJW8Y ScienceClic on Feynman Diagrams: https://youtu.be/X-FEU4mQWtE Domain of Science on Feynman Diagrams: https://youtu.be/oBNZOOuqO6c ________________________________ 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: 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&lc=UgzDewch3sHeuV8jzsZ4AaABAg https://www.youtube.com/watch?v=-cfN-QxJkjU&lc=UgzT59P8sJ1XGtb5Zjh4AaABAg https://www.youtube.com/watch?v=-cfN-QxJkjU&lc=Ugznx6jXeZbU_dE-97N4AaABAg ________________________________ 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