September 19, 2013
Mohenjo
Science
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Researchers may have just solved a 300-year-old riddle.
As part of a study to determine the direction in which Earth’s core spins, scientists in the United Kingdom and Switzerland analyzed seismic readings from earthquakes from the past few decades.
But, instead of finding out whether the planet’s center rotates eastward or westward, the team discovered a surprising answer to the question that’s evaded scientists for centuries: It’s both.
“The link is simply explained in terms of equal and opposite action,” lead researcher Dr. Philip Livermore, of the University of Leeds, said in a released statement. “The magnetic field pushes eastwards on the inner core, causing it to spin faster than Earth, but it also pushes in the opposite direction in the liquid outer core, which creates a westward motion.”
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A team of researchers used a computer model to determine that the Earth’s core spins in not one direction, but two. (Illustration via Getty)
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July 28, 2012
Mohenjo
Uncategorized
"GPS neurons", Baylor College, Baylor College of Medicine, bbc, bbc news, brains, cells, climate, cryptochromes, David Dickman, Earth, Earth's magnetic field, Environment, group of 53 cells within pigeons, Henrik Mouritsen, how birds navigate, Le-Qing Wu, magnetic field, medicine, nature, news science, pigeons, pigeons' brains, puzzled, Science, science environment, Science News, Uk News, www bbc co uk
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Researchers have spotted a group of 53 cells within pigeons’ brains that respond to the direction and strength of the Earth’s magnetic field.
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http://www.bbc.co.uk/news/science-environment-17855194
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