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The planet's wandering magnetic poles

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Author Topic: The planet's wandering magnetic poles  (Read 222 times)
Daedalus
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« on: December 27, 2007, 08:12:04 pm »

Around the world

Only in the past couple of centuries have scientists visited the Earth's magnetic poles. The first explorers to find the north magnetic pole did so at Cape Adelaide, on the west coast of Canada's Boothia Peninsula, in 1831. An expedition 73 years later discovered that the pole had moved about 50 km to the northeast. In the following century, the pole moved more than 1,300 km toward the northwest, along the same path it is taking today.


DIGGING THE SCENE. Paleomagnetic data from a series of hearths unearthed in central Winchester, England, yield information about the city's early history.
Oxford Archaeology Ltd.


« Last Edit: December 27, 2007, 08:14:19 pm by Daedalus » Report Spam   Logged


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