Magnetic north shifting towards Russia
Sun Mar 6, 2011 4:20PM
Translation by Autumnson Blog
Scientists say the magnetic pole, which has been in the icy wilderness of Canada for two centuries, is relocating towards Russia at 40 miles per year.科學家說，已在加拿大冰冷荒野兩個世紀的磁極，正在朝向俄羅斯重新定位，每一年40英里。
Surveys show the magnetic north pole is moving faster, threatening everything from the safety of modern transportation systems to the traditional navigation routes of migrating animals.
勘測顯示，北磁極在移動得更快，威脅一切事物從現代化交通運輸系統的安全，到傳統的動物遷徙的導航路線。
Scientists say that magnetic north, which for two centuries has been in the icy wilderness of Canada, is currently relocating towards Russia at a rate of about 40 miles a year, reported The Independent.
科學家說，已在加拿大冰冷荒野兩個世紀的磁極，正在朝向俄羅斯重新定位，每一年40英里，獨立報報導。
The speed of its movement has increased by one-third in the past decade, prompting speculation that the field could be about to "flip," causing compasses to invert and point south rather than north, something that happens between three and seven times every million years.
它的移動速度在過去的十年增加了三分之一，促使猜測磁場可能要“翻轉”，導致羅盤顛倒及指向南方而不是北方，一些事情百萬年發生 3至7次。
The phenomenon is already causing problems in the field of aviation, added the British daily.
該現象已經在航空領域引起問題，英國的日報補充。
The current rate of the magnetic north's movement away from Canada's Ellesmere Island is throwing out compasses by roughly one degree every five years.
磁北移離加拿大埃爾斯米爾島的運動的目前速度，扔掉指南針約每五年一度。
Geologists believe that magnetic north pole (which is different from the true North Pole, the axis on which the Earth spins) moves around due to changes in the planet's molten core, which contains liquid iron. They first located it in 1831, and have been trying to follow its progress ever since.
地質學家相信，北磁極（不同於真正的北極，即地球在上旋轉的軸）到處移動由於地球的熔融核心(包含液態鐵)的變化。他們首先將它在1831年定位，並已一直試圖跟隨其進度。
Records indicate that the pole's location barely moved in the early decades, but in about 1904, it began tracking north-east at a rate of about nine miles a year.
記錄指出極的位置在最初幾十年幾乎沒動，但在約 1904年，它開始跟踪東北部以速度約一年 9英里。
That speed increased significantly from about 1989, possibly because of a "plume" of magnetism deep below ground.
那速度從 1989年左右顯著增加，可能是因為地下深處的磁性“羽狀物”。
The pole is now believed to be heading towards Siberia at about 37 miles each year.
極現在被認為朝向西伯利亞以每年約 37英里。
“Earth's magnetic field is changing in time. And as far as we know, it has always been changing in time," geophysicist Jeffrey Love of the US Geological Survey in Colorado was quoted by the British daily as saying.
NN/HGH
http://www.presstv.ir/detail/168528.html
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