How Can Electricity Keep Flowing Without a Battery?

Hey guys! We’re now live on Spotify🎧 Listen here: https://open.spotify.com/show/3qYsIDs... Somewhere in a cold laboratory tonight, an electric current is circling a ring of metal connected to nothing at all — no battery, no source of any kind — and it has been flowing longer than the universe has existed. Every device you own runs down in a day. This one refuses to stop. So what is a battery really for? Tonight we follow that question down past the dying flashlight, into the hidden machinery of resistance and cold, and a partnership between particles that should never happen. What has to change inside a wire before electricity will simply flow forever? Get comfortable, close your eyes if you like, and let this slow walk through the physics of a current that never stops keep you company tonight. Subscribe to Lights Out Physics if you enjoy taking the long way around the universe. CHAPTERS 0:00 Introduction 1:29 The Rule Everyone Learns 10:21 A Current That Never Stops 19:50 What a Battery Is Really For 29:42 The Thief Inside Every Wire 39:40 The Cliff to Zero 48:56 What We Have and What We Don't 59:12 The Impossible Partnership 1:09:02 When the Many Become One 1:18:22 The Gap That Cannot Be Crossed 1:28:08 The Answer, Spoken Plainly 1:38:59 Three Ways to Kill It 1:50:18 What We Still Cannot Do SOURCES Milestones: Discovery of Superconductivity, 1911 (Engineering and Technology History Wiki) — https://ethw.org/Milestones:Discovery... The Discovery of Superconductivity (Physics Today) — https://pubs.aip.org/physicstoday/art... Heike Kamerlingh Onnes — Facts (NobelPrize.org) — https://www.nobelprize.org/prizes/phy... The Discovery of Superconductivity (Delft & Kes, Leiden/Lorentz) — https://www.lorentz.leidenuniv.nl/his... Absolute Hero: Superconductors Turn 100 (Scientific American) — https://www.scientificamerican.com/ar... BCS Theory (Wikipedia) — https://en.wikipedia.org/wiki/BCS_theory Cooper Pairs and the BCS Theory of Superconductivity (HyperPhysics) — http://hyperphysics.phy-astr.gsu.edu/... BCS Theory (DoITPoMS, University of Cambridge) — https://www.doitpoms.ac.uk/tlplib/sup... Persistent Current (Wikipedia) — https://en.wikipedia.org/wiki/Persist... Decay of Persistent Currents in Small Superconductors (Physical Review) — https://link.aps.org/doi/10.1103/Phys... Superconductivity at 250 K in Lanthanum Hydride Under High Pressures (Nature) — https://www.nature.com/articles/s4158... Superconductivity at 250 K in Lanthanum Hydride (arXiv preprint) — https://arxiv.org/abs/1812.01561 Superconductivity at Minus 23 Degrees Celsius and High Pressure (Max Planck Society) — https://www.mpg.de/13512517/supercond... 50 Years of Superconducting Magnets (CERN) — https://indico.cern.ch/event/161849/c... — 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. #Superconductivity #PersistentCurrent