53 episodes

Jim Rantschler and Randy Morrison discuss physics from elementary particles to cosmological effects at the limits of our theoretical knowledge or have recently emerged.

Physics Frontiers Jim Rantschler

    • Physics
    • 4.7 • 55 Ratings

Jim Rantschler and Randy Morrison discuss physics from elementary particles to cosmological effects at the limits of our theoretical knowledge or have recently emerged.

    The ANITA Experiment

    The ANITA Experiment

    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

    • 45 min
    Electromagnetic Gravitational Repulsion

    Electromagnetic Gravitational Repulsion

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

    • 41 min
    Sterile Neutrinos

    Sterile Neutrinos

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

    • 37 min
    Gravitational Wave Astronomy

    Gravitational Wave Astronomy

    Jim and Randy talk about gravitational waves.

    • 38 min
    X17

    X17

    Jim and Randy discuss a possible "fifth force," the hypothetical X17 particle that has been seen in several experiments.

    Erratum: The g-2 of the muon was shown to be off by 1 part in 500,000 in 2001 at Brookhaven. It may not be in there, I'm not sure how much of that I cut out.

    Show Notes: http://frontiers.physicsfm.com/50

    • 38 min
    The Unruh Effect

    The Unruh Effect

    Jim and Randy discuss the apparent creation of quanta seen by comparing the viewpoints of relatively accelerating observers -- the Unruh Effect.

    (There is a little noise that shows up on Randy's track half way through - I did my best)

    Show Notes: http://frontiers.physicsfm.com/49
    (links to papers, podcasts, and more!)

    • 39 min

Customer Reviews

4.7 out of 5
55 Ratings

55 Ratings

Thru-Way Nick ,

Four-charm tetraquark

I briefly read, with glazed over eyes, about the LHC at CERN spotting these all charm quarks. I would love to hear your take.
(there’s a “beauty” quark?)

Crowbar Man ,

Better audio please

I like these guys. I love the topics. There are many people like me who need these guys to explain complex topics in physics that we don’t have the education to access otherwise.
I have updated my review to acknowledge the improvement in the audio. Keep it up guys, and if you find a way to remaster the early episodes to improve the audio, I’d love to chip in to raise the funds.
In the early episodes, when I set the audio in my car so that it’s not too loud, half the conversation is too quiet to hear. The dynamic range is too wide!!! Usually, Randy’s voice goes from normal volume to SUPER LOUD, especially when he just begins to talk after Jim; it’s not just me. If you pay attention, you’ll even here the audio distortion. Jim’s voice starts out at a normal volume and then trails off so that the last sentence is very quiet. This effect is worse in my car. If I turn it up to hear the quiet passages, Randy’s voice is deafeningly loud when he comes in. I urge these guys to test run their podcast in their cars. I think computer desktops have a built in dynamic range compression so the volume is even throughout. I think part of the issue is their microphone settings or distance of their faces from the mics. Partly it may be their natural intonation. In a few episodes, they switch so that Jim is the loud one and Randy sounds like he’s across the room.

JKlatt16 ,

Wish the Would Release More Often

I love this podcast! I have listened to all of them almost 3-4 times.

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