Scientists eye whirlpool in Earth's core.(theory that a magnetic field is created within the Earth's interior)(Brief Article)

From: Science News | Date: November 13, 1999| Author: Baker, O. | Copyright information

Reaching back to the compass readings of early polar explorers, geophysicists have now pieced together evidence of a slowly whirling vortex within Earth's liquid-iron interior. This result suggests that a long-nurtured theory of Earth's magnetism is on target.

Einstein described geomagnetism as one of the chief unsolved puzzles of physics. Neither Earth's liquid outer core nor its solid, yet superhot, inner core has struck scientists as likely sources of its magnetic fie...

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