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Originally posted by shaneR
loving this thread so much i signed up...
in australia, (sydney), my compass has been OK. but i noticed this morning that there have been a number of "light" plane crashs in the U.S. today...they seem to form a similar pattern to "magnetic compass anomalies map" here on this ATS thread...
for aircrash info...
Originally posted by BlackProjects
I was very interested to see some of the areas in Indiana I drive marked as compass being off. A couple monthes back I saw a large # of blackbirds flying in circles. I noticed the compass on my Saturn Vue was saying I was going NW but I was definately going N to NE- then it actually said I was going SE. Sometime N of Indianapolis I recalibrated and it was OK again. It had never had an issue before and has not done that since.
Magnetic north, the point at the top of the Earth that determines compass headings, is shifting its position about 64 kilometres a year. In geologic terms, it's racing from the Arctic Ocean near Canada towards Russia. As a result, everyone who uses a compass, even as a back-up to modern GPS navigation systems, needs to be aware of the shift, make adjustments or obtain updated charts to ensure they get where they intend to go, authorities say. That includes pilots, boaters and even hikers.
Originally posted by billxam
Map as of 5:06 pm, EDST 21-3-2011