The Physics of Everything: A 50-Module Journey for the Humanist

Episode 36 - Antimatter and the strangest theory

Fri, 30 Oct 2026 16:03:55 GMT

Discover how Paul Dirac predicted antimatter from pure mathematical beauty, how Feynman reimagined light, and why modern quantum electrodynamics reveals a universe made entirely of fields.

Episode 35 - The nucleus

Fri, 30 Oct 2026 15:44:01 GMT

Step inside the atomic nucleus to explore radioactivity, the strong force, half-lives, fission, and fusion—from Marie Curie’s glowing lab to deep time and the birth of nuclear power.

Episode 34 - Quantum at Work

Thu, 29 Oct 2026 22:03:29 GMT

Discover how quantum mechanics powers everyday technology, from transistors and phone chips to lasers and the Sun, and learn the real science behind quantum computing beyond the hype.

Episode 33 - Why the floor holds you up

Thu, 29 Oct 2026 21:59:13 GMT

Why doesn't your foot fall through the floor? Discover how Pauli's exclusion principle explains the solidity of matter, demystifies Mendeleev's periodic table, and underpins the whole of chemistry.

Episode 32 - What does it mean? The Interpretations

Thu, 29 Oct 2026 21:51:58 GMT

Explore quantum mechanics' greatest mystery: the measurement problem. We review five interpretations of reality—from Many-Worlds to Copenhagen—and ask what quantum theory really tells us.

Episode 31 - Entanglement

Thu, 29 Oct 2026 21:47:07 GMT

Explore quantum entanglement, Einstein's doubt, and Bell's inequality. Learn how counting flashes settled an epic debate on physical reality and locality.

Episode 30 - Uncertainty

Thu, 29 Oct 2026 21:40:51 GMT

Explore Heisenberg's uncertainty principle through acoustics and Michael Frayn's Copenhagen. Discover why quantum fuzziness is an intrinsic wave property, not clumsy measurement.

Episode 29 - The double slit

Thu, 29 Oct 2026 21:35:45 GMT

Explore the double-slit experiment: physics’ most beautiful and perplexing puzzle. Discover wave-particle duality, how observation alters reality, and why quantum logic defies intuition.

Episode 28 - Why atoms exist

Thu, 29 Oct 2026 21:25:44 GMT

Discover why atoms don't collapse, from Rutherford's nucleus to Bohr's quantum staircase and de Broglie's electron waves, revealing how the atom is built like a musical instrument.

Episode 27 - An act of desperation

Mon, 19 Oct 2026 20:42:41 GMT

Why doesn't microwave radiation give you a sunburn? Journey into the birth of quantum theory, from Planck's reluctant lumps to Einstein's revolutionary light packets.

Episode 26 - Black holes and ripples in spacetime

Mon, 19 Oct 2026 20:38:17 GMT

Explore what happens when gravity wins completely: the history of black holes, the strange physics past the event horizon, and how LIGO finally heard two black holes collide in deep space.

Episode 25 - Gravity is geometry

Thu, 15 Oct 2026 20:22:51 GMT

Discover why gravity isn't a force at all. Explore Einstein's happiest thought, the equivalence principle, how mass curves spacetime, and Eddington's famous 1919 eclipse expedition.

Episode 24 - E=mc²

Thu, 15 Oct 2026 20:18:37 GMT

Explore the true meaning of E=mc², from hot coffee and human mass to nuclear fission. Discover Lise Meitner’s breakthrough, the atomic age, and the moral weight carried by physicists.

Episode 23 - Spacetime

Thu, 15 Oct 2026 20:14:21 GMT

Discover Minkowski's spacetime, world-lines, and why you are moving at light speed through time. Explore light cones, causality, and the philosophy of the block universe.

Episode 22 - Time is personal

Thu, 15 Oct 2026 19:55:02 GMT

Discover why moving clocks run slow and explore the twin paradox, atmospheric muons, and the death of a universal "now" through Einstein's simple, elegant light clock thought experiment.

Episode 21 - The trouble with the speed of light

Thu, 15 Oct 2026 19:46:20 GMT

Discover how Albert Einstein solved the clash between Galileo and Maxwell by abandoning absolute time, reshaping our understanding of the speed of light, space, and the universe.

Episode 20 - The Electric Age

Thu, 15 Oct 2026 19:28:24 GMT

Explore the War of the Currents, how electricity actually moves, and how Faraday and Maxwell's insights built the modern power grid—leaving classical physics with an impossible puzzle.

Episode 19 - Reading Starlight

Thu, 15 Oct 2026 19:23:15 GMT

How Bunsen, Kirchhoff, and Cecilia Payne turned starlight into chemical barcodes, debunking Comte's claim of the unknowable and discovering what the universe is truly made of.

Episode 18 - The spectrum, colour, and Goethe's quarrel with Newton

Thu, 15 Oct 2026 19:17:46 GMT

Explore the nature of colour through Newton's physics, Goethe's perception, screen pixels, and why the sky is blue. Is colour a physical wavelength, or an invention of the mind?

Episode 17 - Maxwell: Let there be light

Thu, 15 Oct 2026 19:08:00 GMT

Discover how James Clerk Maxwell united electricity, magnetism, and light into four elegant equations, predicting radio waves and revealing the electromagnetic nature of our universe.

Episode 16 - Faraday and the invention of the field

Thu, 15 Oct 2026 19:02:24 GMT

How does a magnet reach across empty space? Discover how Michael Faraday, a self-taught bookbinder who couldn't do algebra, banished action at a distance and invented the concept of the field.

Episode 15 - Information, a demon, and what life is

Thu, 15 Oct 2026 19:00:02 GMT

Explore Maxwell's demon, Landauer's principle, and Shannon's entropy. Discover how information is fundamentally physical and how living organisms persist as patterns resisting thermodynamic decay.

Episode 14 - The arrow of time

Thu, 15 Oct 2026 18:56:22 GMT

Why does time flow forwards? We explore Eddington's arrow of time, Boltzmann's entropy, and how memory and causality connect directly to the low-entropy state of the Big Bang.

Episode 13 - Entropy counting the ways

Thu, 15 Oct 2026 18:45:21 GMT

Explore the Second Law of Thermodynamics through card shuffles, scrambled eggs, and Ludwig Boltzmann's statistical revolution revealing why entropy always increases.

Episode 12 - Heat, temperature and the engine

Thu, 15 Oct 2026 18:42:49 GMT

Discover what heat really is through cold spoons, cannon boring, and Sadi Carnot's revolutionary insights into engine efficiency and thermodynamics.

Episode 11 - The atomic hypothesis

Thu, 15 Oct 2026 18:39:59 GMT

How did we prove atoms exist when no one could see them? From Lucretius and Franklin to Einstein and Brownian motion, explore the centuries-long fight to turn an ancient idea into measured reality.

Episode 10 - Waves: How patterns travel

Thu, 15 Oct 2026 18:34:56 GMT

Can sound cancel sound? Explore what waves really are: disturbances carrying energy, not stuff. From Greek amphitheatres to Young's double-slit experiment, discover why light is a wave.

Episode 09 - Laplace's demon and the butterfly

Thu, 15 Oct 2026 18:33:42 GMT

Explore chaos theory, Laplace's demon, and the butterfly effect. We discover how deterministic laws can produce unpredictable futures, shattering classical science's grandest illusion.

Episode 08 - Least action: Does nature optimise?

Thu, 15 Oct 2026 18:06:57 GMT

Discover the mystery of how light finds the fastest path through water and air, and how Fermat's discovery led to the profound principle of least action. We explore the bitter historical feud between Maupertuis and Voltaire, contrasting Newton's cause-and-effect universe with a reality seen as a complete whole.

Episode 07 - Symmetry: Why anything is conserved

Tue, 13 Oct 2026 16:13:44 GMT

Discover Emmy Noether's revolutionary theorem linking symmetry to conservation laws, explaining why energy cannot be destroyed, and how her work transformed modern physics.

Episode 06 - Energy: the great bookkeeping

Tue, 13 Oct 2026 16:03:31 GMT

Discover why a cookie holds more energy than TNT, how nature keeps its accounts balanced, and why we aren't actually running out of energy—only degrading its quality.

Episode 05 - Falling Around the Earth: Newton, the Moon, and Universal Gravity

Tue, 13 Oct 2026 15:59:19 GMT

Discover why astronauts float, how an apple connected the cosmos, and how Newton's gravity unified the heavens and Earth—forever changing physics and poetry.

Episode 0 - Welcome Ashlee

Fri, 09 Oct 2026 18:59:58 GMT

Episode zero introduces the 50-week journey through physics for the humanist. Learn the nine-part roadmap, the seminar-style approach, and set up your notebook of Things I No Longer Believe.

Episode 04 - Galileo, Inertia, and the Art of the Thought Experiment

Fri, 09 Oct 2026 18:55:41 GMT

Explore Galileo's radical thought experiments, the myth of impetus, and the birth of inertia and relativity—revealing why objects fall together and moving things keep going forever.

Episode 03 - The art of the good-enough answer

Thu, 08 Oct 2026 05:17:16 GMT

Learn the art of the Fermi problem: how physicists estimate everything from piano tuners to atomic blasts on the back of an envelope, and why rough numbers beat refined silence.

Episode 02 - Powers Of Ten

Thu, 08 Oct 2026 04:57:17 GMT

Explore the ladder of scale across space and time. From protons to galaxies and Galileo to Swift, discover why size alters physical rules and why humans sit right in the middle.

Episode 01 - From Myth To Model

Thu, 08 Oct 2026 04:46:57 GMT

How did an ancient librarian measure Earth with a stick? Explore the dawn of physics from Thales and Anaximander to Eratosthenes, discovering what makes a scientific explanation truly tick.