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Originally posted by tkwasny
reply to post by Long Lance
If a spinning mass (armature) within a medium where there is current flow (say solar winds) is also laterally moving through this charged medium, occurs, will a magnetic field be established?
Like a reverse DC motor on a planetary scale. Current flow produces a magnetic field. How about the charged ionisphere moving against the solar wind particles creating the charging of the ionisphere while the earths rotation causes the flow of those ionisphere shells, creating the magnetic field. This magnetic field is the check and balance to keep the ionisphere charge level stable. A self-feeding servo loop of sorts, powered by the solar radiations.
Originally posted by squiz
Magnetic fields are only created by electric currents.
Originally posted by squiz
reply to post by Power_Semi
The electric currents in a bar magnet are on the sub atomic scale you could say, as all or most of the electrons are spinning in the same direction. However we are yet to find any bar magnets out in space.
Ampère model: Another model is the "Ampère model", where all magnetization is due to the effect of microscopic, or atomic, circular "bound currents", also called "Ampèrian currents" throughout the material. For a uniformly magnetized cylindrical bar magnet, the net effect of the microscopic bound currents is to make the magnet behave as if there is a macroscopic sheet of electric current flowing around the surface, with local flow direction normal to the cylinder axis. (Since scraping off the outer layer of a magnet will not destroy its magnetic field, it can be seen that this is just a model, and the tiny currents are actually distributed throughout the material). The right-hand rule tells which direction the current flows. The Ampere model gives the exact magnetic field both inside and outside the magnet. It is usually difficult to calculate the Amperian currents on the surface of a magnet, whereas it is often easier to find the effective poles for the same magnet.
Originally posted by carlitomoore
Tou guys sound like the people who had peoples guts for garters when they had a famous idea: 'Hey, What if the world isn't FLAT!!!"
Originally posted by jay.mo
the only way that this theory could be proven is if we sould somehow recreate all of the currents in the ocean on a smaller scale and get a giant magnet or something like that. there is no way they can prove this theory
Originally posted by Unlimitedpossibilities
reply to post by Donnie Darko
And how was the new theory presented in the article not analogous to the iron ball theory?
I think we need to wait for some substantiation from the advocates of this theory.
[edit on 15-6-2009 by Unlimitedpossibilities]