Letter | Published:

Existence of Electromagnetic-Hydrodynamic Waves

Nature volume 150, pages 405406 (03 October 1942) | Download Citation



IF a conducting liquid is placed in a constant magnetic field, every motion of the liquid gives rise to an E M. F. which produces electric currents. Owing to the magnetic field, these currents give mechanical forces which change the state of motion of the liquid. Thus a kind of combined electromagnetic-hydro-dynamic wave is produced which, so far as I know, has as yet attracted no attention.

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  1. Kgl. Tekniska Högskolan, Stockholm. Aug. 24.

    • H. ALFVÉN


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