Magnetohydrodynamics (MHD) concerns the interaction between magnetic fields and conducting fluids. We are concerned here with macroscopic inter- actions and, when the conducting fluid is a plasma, time scales are very much longer than the plasma period. Plasma periods vary widely, but are short, say 10 second. We prefer the term Magneto-F/i Z(i-Dynamics (MFD) because the disci- pline concerns mostly plasmas, various liquid conductors, and the liquid...