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Physics Frontiers
Brief discussions on the edge of physics.
Category: Natural Sciences
Location:
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by Physics Fro...
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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

September 14, 2017 11:03 AM PDT

Jim and Randy discuss strange trajectories observed in triple slit experiments with metallic plates. Photons seem to pass through one slit, come back through the middle slit, and out the third due to their interactions with surface plasmons. There are implications in this experiment about the way in which wavefunctions need to be interpreted in non-relativistic quantum mechanics.

Show notes: http://frontiers.physicsfm.com/13

August 20, 2017 02:15 PM PDT

Jim and Randy discuss a cosmological theory that purports to find an explanation for the arrow of time in gravitational theory based on the shape and distribution of matter and how it evolves.

Show notes: http://frontiers.physicsfm.com/12

July 16, 2017 11:43 AM PDT

Randy tells Jim about photonic molecules, pairs of photons that create bound states like molecules do through a force mediated through an ultracold gas and similar ideas in optical circuits. They also discuss application of the same for quantum computing.

Show notes: http://frontiers.physicsfm.com/11

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