When and How the Magnetic Poles Switch Places (Magnetic Poles Part 1 of 2)
Series: A Moment of Science
From: WFIU
Length: 00:02:01
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You're a polar explorer and you've just reached the north pole. The huskies are yapping, the cameras are ready and you're just about to unfurl the flag when, all of a sudden, the north pole becomes the south pole. Imagine your chagrin.
Okay, so it doesn't really happen that fast, but it's true that in the past the earth's magnetic poles have switched places. In fact, it seems to happen roughly every 250,000 years or so.
Find out more on this A Moment of Science...
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Piece Description
You're a polar explorer and you've just reached the north pole. The huskies are yapping, the cameras are ready and you're just about to unfurl the flag when, all of a sudden, the north pole becomes the south pole. Imagine your chagrin.
Okay, so it doesn't really happen that fast, but it's true that in the past the earth's magnetic poles have switched places. In fact, it seems to happen roughly every 250,000 years or so.
Find out more on this A Moment of Science...
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