Robinson's Podcast16 Mar 2025

246 - Tim Maudlin: A Masterclass on General Relativity

Tim Maudlin is Professor of Philosophy at NYU and Founder and Director of the John Bell Institute for the Foundations of Physics. This is Tim’s seventh appearance on the show. He last appeared on episode 237 for a masterclass on Albert Einstein’s theory of special relativity, explaining it from the ground up and elucidating some common misconceptions. In this episode Tim returns for a discussion of another of Einstein’s major impacts on physics: his theory of general relativity. More particularly, Tim and Robinson discuss black holes, time, paradoxes of distance, Penrose diagrams, figures like Leonard Susskind and Richard Feynman, the curvature of space, and more. If you’re interested in the foundations of physics, then please check out the JBI, which is devoted to providing a home for research and education in this important area. Any donations are immensely helpful at this early stage in the institute’s life.

Tim’s Website: www.tim-maudlin.site

The John Bell Institute: https://www.johnbellinstitute.org

00:00:42 An Extended Prelude

00:05:08 Naming Names

00:10:02 The Difference Between Quantum Mechanics and General Relativity

00:13:46 Einstein on General Relativity and Metric

00:27:21 More on Coordinates

00:40:26 A Novel Coordinate System

00:46:25 What Is Special Relativity?

00:50:30 The Conflict Between Quantum Theory and Relativity

01:02:00 Doing Physics with Geometry

01:12:38 Geometry and Special Relativity

01:30:20 More on Geometry and Relativity

01:36:19 Lorentz Frames

01:46:56 Simultaneity

02:02:03 John Bell and Special Relativity

02:11:00 Paradoxes of Distance

02:22:12 A Penrose Diagram

02:27:47 Introducing General Relativity

02:32:23 The Most Important Experiment About Gravity

02:45:52 Changing the Geometry of Spacetime

02:55:28 Curvature of Space

03:02:03 Be Careful with Diagrams in Science

03:05:45 The Basic Idea of General Relativity

03:10:23 The Equivalence Principle

03:19:40 Clocks and Gravity

03:28:09 Richard Feynman on General Relativity

03:37:00 The Cosmological Constant

03:41:56 What Are Black Holes?

03:50:45 What Steven Weinberg Got Wrong About General Relativity

04:01:01 Black Holes and the Centrifugal Force Paradox

04:06:32 Curved Black Holes and Gödel Spacetime

04:19:34 The John Bell Institute

Robinson’s Website: http://robinsonerhardt.com

Robinson Erhardt researches symbolic logic and the foundations of mathematics at Stanford University.

Denne episoden er hentet fra en åpen RSS-feed og er ikke publisert av Podme. Den kan derfor inneholde annonser.

Episoder(280)

278 - Priyamvada Natarajan: The Mystery of Dark Matter

Priyamvada Natarajan is the Joseph S. and Sophia S. Fruton Professor of Astronomy and Professor of Physics at Yale University, where she is also the Chair of Astronomy. Priya researches broadly across...

31 Mai 1h 30min

277 - Tim Maudlin: What Is Philosophy?

Tim Maudlin is Professor of Philosophy at NYU and Founder and Director of the John Bell Institute for the Foundations of Physics. In this episode, Robinson and Tim discuss the nature of philosophy. Mo...

17 Mai 2h

276 - Craig Callender: Lab-Grown Meat, De-Extinction, and the Tolman-Ehrenfest Effect

Craig Callender is Professor of Philosophy and Co-Director of the Institute for Practical Ethics at UC San Diego, where he is a leading philosopher of science and physics. Craig also appeared on episo...

3 Mai 1h 31min

275 - Nate Soares: AI Will Kill Us All If We Don’t Change Course

Nate Soares is the President of the Machine Intelligence Research Institute, and plays a central role in setting MIRI’s vision and strategy. Soares has been working in the field for over a decade, and...

19 Apr 2h 3min

274 - Norman Finkelstein: Trump, Netanyahu, Putin, and the War in Iran

Norman's Upcoming Book, Gaza's Gravediggers: https://orbooks.com/catalog/gazas-gravediggers/Norman Finkelstein received his PhD from the Princeton University Politics Department, and is best known for...

29 Mar 1h 35min

273 - Richard Wolff: Iran, Israel, and the End of the American Empire

Richard Wolff is Professor Emeritus of Economics at the University of Massachusetts Amherst and a visiting professor at The New School, where he works on economics in the Marxist tradition. This is Ri...

22 Mar 2h 4min

272 - Michael Hudson: Iran, Israel, and World War III

Michael Hudson is Distinguished Research Professor of Economics at the University of Missouri, Kansas City and President of the Institute for the Study of Long-Term Economic Trends. He researches dome...

15 Mar 1h 56min

271 - Sara Imari Walker & Lee Cronin: Quantum Physics, Time, and the Origin of Life

Sara Imari Walker is Professor in the School of Earth and Space Exploration at Arizona State University, where she is Deputy Director of the Beyond Center. Sara is an astrobiologist and theoretical ph...

1 Mar 1h 58min