Thursday, January 26, 2012

New clues to mystery of magnetic fields

msnbc.com: Technology & Science

An image of a laser-produced shock wave. Brighter colors correspond to regions of higher density or temperature. Right-hand side: A simulation of a collapsing shock wave arising during the pre-galactic phase.Gravity may be the master of the universe, but it has had a key assistant in shaping the cosmos — magnetism. Exactly how that force, which comes from the motion of electric charges, got its start however, has been a mystery — until now.


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