The Wikipedia article is part of a conspiracy covering up the oft-
stated fact in books on the paranormal that the only two places with 0
degrees variation are the Bermuda Triangle and the sunken location of
the lost continent of Mu. :-)

What I have done is enclose the magnetic compass in a soft iron metal
box... Since then it has never varied, even when flying near
Bermuda...
BTW, I am a graduate of Moo U...

denny