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As trustworthy as a compass

2004-01-06 18:25:55.089727+00 by Dan Lyke 1 comments

Nasa on Earth's Inconstant Magnetic Field. Most shocking is that diagram on the right side showing the migration of the field over the past century. That's a lot o' damned territory.

[ related topics: History Space & Astronomy Astronomy ]

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#Comment Re: As trustworthy as a compass made: 2004-01-11 02:40:49.244108+00 by: meuon

I knew the basics, but that is a good article.