Quote:
Originally Posted by rcglinsk
Also, if not for a fundamental certainty, what's with all the hatred of the electric universe theory? I mean, "magnetic fields are fundamentally coupled with electric ones, and absent a bar magnet, their only cause is the matter at hand being an element in an electric circuit carrying electric current" is a prima facie case that there is electric current flowing through the sun and the Earth. It may be wrong, if disproved by evidence, but at least it's a logical argument.
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Mainstream theories do not deny that electrical and magnetic effects exist. The "electric universe" theories go much further, giving absurdly over-complicated explanations that generally aren't necessary in the first place and don't bear much resemblance to reality.
The core dynamo
is electromagnetic. It is not self sustaining, it is sustained by the convection currents in the core as it slowly freezes and as radioactive decay adds heat. These fluid currents produce electrical currents which influence the fluid currents in various complicated ways, and the overall result at the surface and above is a reasonably even dipole field. This is why it is called a dynamo, it is an electrical generator which uses the electrical power it generates to produce the magnetic field which it uses to convert mechanical power to electrical power...very much like modern large generators. It just requires a small initial imbalance somewhere...a difference in charge, some small magnetic field, all easily created by the heat and mechanical action of the convection currents. No lightning from the universe required.