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Old 06-10-2019, 11:21 PM
brossa is offline
Join Date: Feb 2005
Posts: 1,140
Also, the folded paper bag will give you a 90 degree corner to help determine the point on your E-W shadow line that is closest to your shadow tower. That's the noon point, and the ratio of tower height over shadow length at that point will help the rescuers find your latitude.