North Magnetic Pole rushes to the east!?

petak, 12. ožujka 2010.

Earth's north magnetic pole moves down to Russia at a speed of nearly 65 kilometers per year, according to a new study wit an explanation that this is a consequence of changes in the Earth's magnetic core.

The very core is too deep so we are not able to directly measure its magnetism, but scientists calculate the data on it using the surface magnetism as well as that in the space around the planet, reports National Geographic. According to new data in one location in the surface layer of the core there is a sudden change in the magnetic field, and it is believed to be caused by changes of magnetism in the deeper core. Scientists believe, that this is responsible for moving the pole, which is located near Canada's Ellesmere Island, to the east and Russia.

Scientists determined the exact location of magnetic north pole in 1831st year. Since 1904th it began to steadily move toward the northeast at a speed of about 15 kilometers per year. The situation remained unchanged until 1989. when the pole accelerated, 2007. confirmed that his speed to Siberia increased to 55 to 60 kilometers per year.

Geologists believe that Earth's magnetic field exists because the iron cores of planets around rapidly circulating molten rock. As the molten core of constantly moving the scientists believe that changes in its magnetic field can cause changes the location of the surface magnetism and thus affect the shift of the poles.

New data show the benefit of this theory, but scientists still can not say with certainty how the magnetic north pole move, adding that could change in the core magnetism may occur in some other place that would turn half of the movement could be directed in a completely different direction.

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