Recently, magnetic compasses at Greenwich pointed directly at true north for the first time in 360 years. This is currently happening in Western Australia too. But what does it mean?
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A paleooceanographer describes her ninth sea expedition, this time retrieving cylindrical ‘cores’ of the sediment and rock that’s as much as two miles down at the ocean floor.
The earth’s own magnetic field offers a useful way to measure the age of rocks - information that can help unpack ancient events and aid our understanding of the present.
Signals from violent earthquakes are helping reveal the landscape of the planet’s insides.
Are we headed to a magnetic reversal and all the global disruption that would bring? Enter archaeomagnetism. A look at the archaeological record in southern Africa provides some clues.
A geomagnetic reversal may have a severe impact on humans.
Kontributor teratas
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Professor of Geophysics, University of Rochester
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Associate Professor of Geophysics, University of Leeds
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Associate Professor of Geophysics, University of Leeds
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Postdoctoral Associate in Earth and Environmental Sciences, University of Cape Town
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Royal Society University Research Fellow & Associate Professor of Geophysics, University of Oxford
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Postdoctoral research fellow, Jurassica Museum
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Harold T. Stearns Professor of Earth Science, Wesleyan University
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Senior Research Geophysicist, CSIRO
