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Old 13th Jan 2019, 04:51
  #29 (permalink)  
Join Date: Apr 2009
Location: On the Beach
Posts: 3,186
Originally Posted by DaveReidUK View Post
Most recently, about 780,000 years ago.

I don't think that one caused any problem for pilots.
May have missed with the compass in Fred Flintstone's car, though.
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