Physics Frontiers

Jim and Randy talk about alternatives to black holes without event horizons or singularities.Show Notes: http://frontiers.physicsfm.com/61

Randy tells Jim about developments of metrics describing isolated spacetime bubbles that could, possibly, move faster than light.Show Notes: http://frontiers.physicsfm.com/60

Randy and Jim discuss the current tension between measurements of the Hubble constant by different methods, and some attempts to resolve the issue.Show Notes: http://frontiers.physicsfm.com/59

Jim and Randy talk about the Higgs portal to dark matter and the nightmare scenario for particle physicists: what if the LHC never saw any traces of supersymmetric particles?Show Notes: http://frontiers.physicsfm.com/58

Randy and Jim talk about two proposals to use gravitational wave interferometry to show that gravitons exist through noise measurements.Show Notes: http://frontiers.physicsfm.com/57

Jim and Randy discuss the measurements of the anomalous magnetic moment of the muon and some of the ways in which the discrepancy between theory and experiment could manifest themselves in new physics.Show Notes: http://frontiers.physicsfm.com/56

Jim and Randy discuss the rationales for multiverses based on quantum mechanics, string theory, and the anthropic principle.Show Notes: http://frontiers.physicsfm.com/55

Randy and Jim talk about the strange results of the ANITA experiment: tau neutrinos that seem to come up out of the Earth.Notes: http://frontiers.physicsfm.com/54

Randy tells Jim about ways in which electromagnetism reduces the gravitational attraction caused by a body.

Jim and Randy discuss the hypothesis of sterile neutrinos, neutrinos that are even more ghostly than neutrinos that are dark matter candidates.