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Physics Frontiers
Journeys to the Outer Limits of Theoretical Physics
Category: Natural Sciences
Location:
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February 23, 2018 08:31 PM PST

Randy tells Jim about the island of stability: a theoretically predicted oasis of stable nuclear isotopes that researchers keep getting nearer and nearer to discovering. Randy and Jim talk about what they are, how researchers are trying to produce the isotopes, and the theoretical methods that predict their existence.

Show Notes: http://frontiers.physicsfm.com/24

February 08, 2018 07:35 PM PST

Randy helps Jim get a handle on Dark Energy. Why do we need it? What could it be? What does it have to do with you? How close are we to knowing anything about it?

Show Notes: http://frontiers.physicsfm.com/23

January 21, 2018 05:35 PM PST

Jim and Randy discuss quasiparticles recently found in condensed matter systems that mirror particles theorized nearly a hundred years ago, but never found in the vacuum. Weyl particles are massless fermions, and once it was hoped that neutrinos would turn out to be this kind of particle, and Majorana fermions have real-valued wave functions and therefore many strange and possibly useful properties.

Show Notes: http://frontiers.physicsfm.com/22

January 10, 2018 07:09 PM PST

Randy tells Jim about a scheme that uses Mach's Principle - the idea that there is a preferred background frame with respect to the fixed stars - to explain the origin of inertia.

Show Notes: http://frontiers.physicsfm.com/21

December 21, 2017 07:39 PM PST

Jim talks to Randy about structures that are periodic in time like crystals are periodic in space.

Show notes: http://frontiers.physicsfm.com/20

December 06, 2017 09:06 AM PST

Randy tells Jim about a theory that complements other theories of fundamental physics based upon a phase space symmetry between the 4-position and the 4-momentum of a particle. The upshot of the theory is that there should be a second time dimension and a fourth space dimension, both macroscopic in extent, and the physics we see are 4D projections from the larger 6D space-time.

Show notes: http://frontiers.physicsfm.com/18

November 23, 2017 10:03 PM PST

Randy and Jim talk about traveling through through time, discussing relativity and, in particular, Kurt Goedel's solution for closed timelike curves in General Relativity.

Show notes: http://frontiers.physicsfm.com/17

November 06, 2017 12:18 PM PST

Randy tells Jim about ways in which external vibrations can be used to do useful work in large-scale devices. These processes look at have happens when bistable systems (e.g., a bent cantilever) are subjected to random forcing from the environment.

Show notes: http://frontiers.physicsfm.com/16

October 21, 2017 10:13 AM PDT

Randy shows Jim five different ways in which a body can be levitated: by magnetism, by superconductors, by Lenz' Law, by acoustics, and most recently by thermophoresis.

Show notes: http://frontiers.physicsfm.com/15

October 04, 2017 02:26 PM PDT

Randy explains Stochastic Electrodynamics to Jim, the theory that vacuum fluctuations are the cause of quantum mechanical behavior.

Show notes: http://frontiers.physicsfm.com/14

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