Geodynamics After Breakfast
Friday, January 15, 2010 - 16:28
in Astronomy & Space
This morning I was asked to settle an argument about the Magnetic North Pole being a magnetic south pole. That discussion started me wondering about the dynamo theory, widely accepted now, that the Earth's swirling, agitating liquid outer core, interacting through convection with Earth's inmost magnetism, is what regenerates our planet's geomagnetic field. read more