It probably explained how the Earth had magnetic poles similar to that of a bar magnet.
I. M. Kirko has written: 'Magnetohydrodynamics of liquid metals' -- subject(s): Liquid metals, Magnetohydrodynamics
L. F. Burlaga has written: 'Interplanetary magnetohydrodynamics' -- subject(s): Interstellar matter, Magnetohydrodynamics
L. Mestel has written: 'Astronomy - a mirror to physics' -- subject(s): Astronomy 'Magnetohydrodynamics' -- subject(s): Magnetohydrodynamics 'Astronomy'
I suggest you read the Wikipedia article on "Magnetohydrodynamics", to get an overview on this topic.
Arthur R. Kantrowitz has written: 'Flight magnetohydrodynamics'
Henri Cabannes has written: 'Theoretical magnetofluiddynamics' -- subject(s): Magnetohydrodynamics
K. Pohlhausen has written: 'Mathematical memorabilia' -- subject(s): Mathematics, Magnetohydrodynamics
M Okabayashi has written: 'MHD equilibrium and stability of the spheromak' -- subject(s): Stability, Magnetohydrodynamics, Equilibrium
Cataldo Agostinelli has written: 'Sulla magnetofluidodinamica e le sue applicazioni' -- subject(s): Magnetohydrodynamics
G. Rudins has written: 'U.S. and Soviet MHD technology' -- subject(s): Magnetohydrodynamic generators, Magnetohydrodynamics, Research
Richard J. Thome has written: 'MHD and fusion magnets' -- subject(s): Magnetohydrodynamics, Superconducting magnets
W. H Matthaeus has written: 'Particle acceleration by turbulent magnetohydro-dynamic reconnection' -- subject(s): Magnetohydrodynamics