On estimating the molecular viscosity of the Earth’s outer core: comment on the paper by D E Smylie et al.
Schmidt Institute of Physics of the Earth of the Russian Academy of Sciences, Bolshaya Gruzinskaya ul. 10, Moscow, 123995, Russian Federation
The paper “Direct observations of the viscosity of Earth’s outer core and extrapolation of measurements of the viscosity of liquid iron” by D E Smylie, V V Brazhkin, and A Palmer [Phys. Usp. 52 (1) 79 (2009)] is subject to critique for its proposed approach to estimating the viscosity of the Earth’s outer core.