Cowling proved that a fluid, self-sustaining one of these cannot have an axis of symmetry, though Braginsky's isothermal solution to the 3-D problem of this name is nearly symmetric. Steenbeck's alpha
Cowling proved that a fluid, self-sustaining one of these cannot have an axis of symmetry, though Braginsky's isothermal solution to the 3-D problem of this name is nearly symmetric. Steenbeck's alpha effect is the production of a time-averaged field of this type by disordered MHD convection. Parker proposed that rising flows in the Sun's atmosphere could give rise to a field of this type, but this model does not account for the properties of sunspots. The Gramme electromagnetic variety of this uses a ring armature to increase consistency while Pixii built the first electric one based on Faraday's law of induction. FTP, identify the shared name of the most prevalent model of planetary magnetism and an electrical generator that converts rotation to alternating current.
Cowling proved that a fluid, self-sustaining one of these cannot have an axis of symmetry, though Braginsky's isothermal solution to the 3-D problem of this name is nearly symmetric.
dynamo (accept word forms, e.g. dynamic)