| 摘要 |
A given magnetic field and a given wave are applied to a conductive fluid so as to satisfy the relations of: l⊥>delta (1) lambda''>lambda (2) on condition that a length of said conductive fluid is set to l⊥(m), and the equations of delta=(2/Pmuomega)<1/2 >and lambda''=2piB/omega(rhomu)<1/2 >are defined (sigma: the electric conductivity (S/m) of said conductive fluid, rho: the density (kg/m<3>) of said conductive fluid, mu: the permeability of said conductive fluid, B: the strength of said magnetic field (T), omega: the angular frequency of said wave), thereby to generate and propagate a given vibration into said conductive fluid.
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