Get your DEMYSTICON 2024 tickets here: https://www.eventbrite.com/e/demysticon-2024-tickets-727054969987 This is our second conversation with esteemed physics professor, Dr. Andrê Koch Torres Assis. Following our earlier discussion of Weber's electrodynamics, we now move into Professor Assis' other passion: Machian dynamics. Mach is perhaps one of the most well-known behind-the-scenes players in the saga of modern physics. Einstein and others often point to Mach as inspiring their ideas but it is often unclear exactly what Mach was proposing when he said that inertia was simply the result of the gravity of the sum total of all of the distant celestial bodies acting upon something locally. In this podcast we explore Mach's ideas through a few simple experiments. Please tell us your thoughts in the comments! Sign up for a yearly Patreon membership for discounted conference tickets: https://bit.ly/3lcAasB Dr. Assis' talk from DemystiCon 2025: https://youtu.be/bboKmG0uUuU Professor Assis' books, papers, talks: https://www.ifi.unicamp.br/~assis/ First podcast with Dr. Assis: https://youtu.be/VGql2qiRjkY 00:00 Go! 00:04:36 Mach's Principle 00:05:05 The free fall of an apple 00:09:21 There are no two body problems in nature 00:18:46 Setting a reference frame, acceleration of the apple relative to what? 00:22:17 Newton proves the existence of the vacuum with his bucket experiment 00:32:21 Newton letting go of material cause 00:40:48 Newton v Ernst Mach 00:44:30 What would be the shape of the water if it remained at rest relative to the ground and the whole set of stars did spin once a second around the axis of the bucket? 00:51:54 What Newton got wrong about gravity 00:57:32 Weber's law of Relational Mechanics 01:06:32 Space time as "absolute space" 01:08:55 Mach's principle and the diurnal rotation of the Earth 01:20:56 Experimental proof of relational mechanics? 01:22:16 Gravity probe B 01:24:04 What would be the shape of the Earth if all other astronomical bodies were annihilated? 01:34:10 Pitfalls of assuming a homogenous universe 01:34:55 Hubble’s law due to interaction of light and not due to Doppler effect 01:37:00 Hubble did not believe in the expansion of the universe 01:39:07 The CMB is a proof against the big bang, as it was predicted earlier and better by Guillaume, Regener, Nernst etc. assuming a universe without expansion 01:48:24 Why accept an expanding universe? 01:54:40 Weber’s unification of the laws of Coulomb, Ampère and Faraday before Maxwell 02:02:30 Schrödinger’s 1925 deduction of the kinetic energy utilizing Weber’s gravitational potential energy 02:11:00 Thomas Kuhn’s book The Structure of Scientific Revolutions 02:12:35 Closing thoughts #GravityExplained, #PhysicsDebate, #MachsPrinciple, #NewtonVsMach, #EinsteinVsMach, #AlternativeGravity, #CosmicPerspective, #InertiaInsights, #RelationalMechanics, #SpaceTimeDebate, #GravitationalTheories, #ModernPhysics, #CosmologyDiscussion, #ScienceDebates, #RevolutionaryIdeas, #QuantumGravity, #UniversalConnections, #ExperimentalPhysics, #CosmicUnderstanding, #NewPhysicsExploration, #sciencepodcast, #podcast #physics Check our short-films channel, @DemystifySci: https://www.youtube.com/c/DemystifyingScience AND our material science investigations of atomics, @MaterialAtomics https://www.youtube.com/@MaterialAtomics Join our mailing list https://bit.ly/3v3kz2S PODCAST INFO: Anastasia completed her PhD studying bioelectricity at Columbia University. When not talking to brilliant people or making movies, she spends her time painting, reading, and guiding backcountry excursions. Shilo also did his PhD at Columbia studying the elastic properties of molecular water. When he's not in the film studio, he's exploring sound in music. They are both freelance professors at various universities. - Blog: http://DemystifySci.com/blog - RSS: https://anchor.fm/s/2be66934/podcast/rss - Donate: https://bit.ly/3wkPqaD - Swag: https://bit.ly/2PXdC2y SOCIAL: - Discord: https://discord.gg/MJzKT8CQub - Facebook: https://www.facebook.com/groups/DemystifySci - Instagram: https://www.instagram.com/DemystifySci/ - Twitter: https://twitter.com/DemystifySci MUSIC: -Shilo Delay: https://g.co/kgs/oty671