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    Johnny Walker Commercial on TV
    From: Brad Morris
    Date: 2009 Oct 28, 06:22 -0700

    I get a real kick out of a current Johnny Walker commercial on TV (in the US 
    only probably not seen elsewhere).  It shows an expedition to the South Pole 
    in 1908 and how they are getting there via COMPASS!
    
    The compass would not point to the geographic south pole.  It would point to 
    the magnetic pole.  These poles, of course, do not coincide.  Further, on a 
    straight line path to the geographic pole, the compass would swing 
    terrifically.  You could navigate to the pole this way, under the assumption 
    that you knew the variation of the compass for the sledging journey. Since 
    the 1908 journey was a pioneering expedition, how could they know the 
    variation?  Wouldn't they be trying to measure the variation?
    
    Of course, its only a 30 second commercial but there are no sextants or 
    theodolites.  The commercial does show an individual HOLDING the compass and 
    watching the needle swing.  Yup, that will get you there!!!!
    
    Best Regards
    Brad
    
    
    
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