Jim Rantschler and Randy Morrison discuss physics from elementary particles to cosmological effects at the limits of our theoretical knowledge or have recently emerged.
https://www.podomatic.com/podcasts/physicsfrontiers-rantschler
A Gravitational Arrow of Time
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