Episode - Natural Selections: Which way is up?
The magnetic fields on earth have a pattern of reversing. So does this mean that one day we will all be upside-down when the fields change? Dr. Curt Stager and Martha Foley get to the bottom of up.
Podcast
Natural Selections
Category: Public Radio
Last update: Fri Aug 29 14:56:38 -0700 2008
Conversations about the natural world with Dr. Curt Stager and Martha Foley, from member-supported North Country Public Radio
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