TSSM goes heavy: hard-hitting journalism from one of science’s great controversialists, Anne Hofmeister. Intrigued? Disagree? Write me an email (email@example.com) or look her up at Washington University in St. Louis’ EPS department website.
The times below are keyed to the start of the interview and ignore my opening (just over 2 min).
1:00 Anne’s background (sorry, this part Anne was talking so quietly that I can’t seem to fix it with Audacity, but bear with us; we moved the microphone and figured some things out and it gets better)
2:00 Spectroscopy and heat transfer
3:00 Thermal conductivity experiments and their pitfalls
5:00 Criticism of the history of thermodynamics and heat transfer; identification of light and heat
6:00 Problems with equilibrium and elastic collisions in theories of thermodynamics
8:00 Criticism of phonon theory
10:00 Electron and vibrational transfer of heat decoupled; metals and heat transfer
14:00 Earth’s interior: convection, the Rayleigh number
16:00 The Earth’s mantle: nearly all solid
17:00 Plate tectonics without mantle convection
18:00 An even more radical idea: heat is being trapped inside the solid Earth
19:00 [there was a distortion I had to cut]
20:00 Implications: heat generation is in the crust (this part is widely known!)
21:00 Implications: the core is melting, not solidifying?
22:00 The geodynamo and magnetic field
23:00 The core: buffered at the temperature of melting high pressure iron
24:00 Magnetic modes diagram for the planets: spin and magnetic field