Rediscovering north Local vet’s work on magnetism changed maps, textbooks

SierraVista Herald ^ | David Rookhuyzen

[ETL]

[zot]

Thanks for the ping. Very interesting. That was a lot of work.

Another anomaly: A straight line from the North Magnetic Pole to the South Magnetic Pole doesn’t pass through the center of the Earth.

[SunkenCiv]

Thanks SandRat. Poleshift! ;^)

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Intrigued, and on his own initiative, he began plotting the difference in his compass reading and that of an astrocompass, which pinpoints direction via celestial bodies. He asked for similar data from anyone flying in the area. And when he laid out all the data -- some 1,500 to 2,000 readings all told -- he discovered something intriguing. The magnetic pole -- sometimes called the dip pole because it’s where the magnetic field dips vertically into the Earth -- was sitting off of Prince of Wales Island, 200 miles away from the Ross and Amundsen locations. But more than that, he showed the pole was sitting at the bottom of a larger elliptical area. And that area contained two foci points or local magnetic poles as well -- which could disrupt a compass... Further studies conducted since 1948 have shown the pole is still moving, and at a fairly fast clip. A study presented at the American Geophysical Union in 2009 concluded the pole is actually drifting northwest toward Russia at nearly 40 miles per year. It’s estimated to have moved nearly 700 miles in the 20th century alone. Today, the pole is in the Arctic Sea, hundreds of miles from where Klein plotted it. And, so, Klein’s contribution became a footnote, just another data point on that journey.

[AllAmericanGirl44]

bkmk