The More We Study This Force, The Less We Understand It

Hey guys! We’re now live on Spotify🎧 Listen here: https://open.spotify.com/show/3qYsIDs... There is something stuck to your refrigerator door that classical physics says cannot exist. It has held a photograph up for years with no battery, across a gap where nothing observable is happening. And the closer physicists look, the less there is to find. What is actually left at the bottom of a magnet? Tonight we follow that question through a beam of silver atoms in nineteen twenty-two, a theorem that forbids magnets outright, a force that turns out not to be magnetic, and a missing half of Maxwell's equations. Get cozy and let this slow walk through the strangest object in your kitchen keep you company tonight. Subscribe to Lights Out Physics if you enjoy taking the long way around a question. CHAPTERS 0:00 Introduction 1:30 The thing in your hand 11:14 Two thousand years of getting closer 20:19 The answer that does not fit the fridge 30:40 The theorem that forbids your fridge magnet 41:30 Frankfurt, February nineteen twenty-two 52:43 Why almost nothing is magnetic 1:03:21 The force that is not magnetism 1:14:17 Inside the spoon 1:25:40 Relativity at the speed of a crawling insect 1:37:40 Three thousand kilometres down 1:49:10 The half that is not there 2:00:36 What is actually left SOURCES Measurement of the Electron Magnetic Moment (Physical Review Letters 130, 071801) — https://link.aps.org/doi/10.1103/Phys... Measurement of the Electron Magnetic Moment (arXiv) — https://arxiv.org/abs/2209.13084 Record-breaking electron measurement probes an iconic theory's flaws (Nature) — https://www.nature.com/articles/d4158... Searching for New Physics with the Electron's Magnetic Moment (APS Physics) — https://physics.aps.org/articles/v16/22 On the Bohr-van Leeuwen theorem, the non-existence of classical magnetism in thermal equilibrium (EPL) — https://iopscience.iop.org/article/10... 45.5-tesla direct-current magnetic field generated with a high-temperature superconducting magnet — https://pubmed.ncbi.nlm.nih.gov/31189... With mini magnet, National MagLab creates world-record magnetic field (National High Magnetic Field Laboratory) — https://nationalmaglab.org/news-event... Of flying frogs and levitrons (European Journal of Physics 18, 307) — https://www.physics.umd.edu/grt/taj/4... A note on Purcell's basic explanation of magnetic forces (arXiv) — https://arxiv.org/pdf/2108.07169 Magnetism, Radiation, and Relativity (Weber State University) — https://physics.weber.edu/schroeder/m... Earth's Magnetosphere: Protecting Our Planet from Harmful Space Energy (NASA) — https://science.nasa.gov/science-rese... World Magnetic Model (NOAA National Centers for Environmental Information) — https://www.ncei.noaa.gov/products/wo... World Magnetic Model 2025 Released (NOAA National Centers for Environmental Information) — https://www.ncei.noaa.gov/news/world-... Searches for cosmic magnetic monopoles: past, present and future (Philosophical Transactions of the Royal Society A) — https://royalsocietypublishing.org/rs... Magnetic sensitivity of cryptochrome 4 from a migratory songbird (Nature 594, 535) — https://www.nature.com/articles/s4158... — Disclaimer: Lights Out Physics is an education and relaxation channel. Factual material is based on peer-reviewed research and official scientific bodies; any speculation, fringe theory, or personal analysis is identified as such when it appears. This is not a news channel. Viewer discretion advised. #ElectronSpin #MagneticMonopole