NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Greg Rudzinski
Date: 2013 Jun 16, 19:42 -0700
Geoffrey,
Use the back side of a photograph to make a covert latitude longitude grid. A point can be plotted within the grid to position the photographer to a nautical mile. Further refinement of the position can be done if a setting Sun is pictured along with two land marks. A position good to 0.1 NM can then be achieved by plotting two bearings and the horizontal angle circle of position. A natural range would be a nice final touch.
Don't forget the posing tourists to distract the curious ;-)
Greg Rudzinski
Position from a photo
From: Geoffrey Kolbe
Date: 2012 Dec 27, 13:49 +0000
Suppose you wish to covertly record the location of a stash of gold
buried in the Sahara desert (say). Could you take a casual looking
photo which would convey enough information to make a fix within a
few nm of where the photo was taken?
Thanks
Geoffrey
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