Pirateology - Land Navigation Traditional Cache
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Paul
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Pirateology - Land Navigation
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Difficulty:
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Terrain:
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Size: 
(regular)
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LESSONS IN BECOMING A PIRATE
READ, PRACTICE, LEARN AND BRING YOUR SKILLS TO PIRATEMANIA!
12 in a series of 20
LAND NAVIGATION
Watch Method
This method is fast, portable, and reasonably accurate for these kinds of general methods. And even if you don't have an analog clock face, then you can draw one easily enough. It's not perfect, but handy.
Cast a shadow across the watch face.
* In the northern hemisphere, align the hour hand to the shadow. You will now need to bisect an angle (find the halfway angle) between the hour hand and noon (or 1pm if you are on daylight savings time). The line running through the bisected angle will run true north-south. North will be the side of the line closest to 3 o'clock in the morning and 9 o'clock in the afternoon.
* In the southern hemisphere the approach is almost identical (it would be if you had a clock that runs anti-clockwise). In the southern hemisphere align noon (or 1pm if you are on daylight savings time) to the shadow. Bisect the angle to find the north-south line. North will be the side of the line before 12 in the morning and after 12 in the afternoon.
If you're lucky enough to have a 24 hour analog watch face, you don't need to bisect the angles.
Some drawbacks include that you can easily be off the width of a timezone which is typically an hour but can vary. Knowing if you are close to a timezone boundary will help with this. It's also not supposed to very good if you are either too close (under 20°) or too far (more than 70°) from the equator.
Many thanks to Mandarin Lake for placing the original cache.
Additional Hints
(Decrypt)
orgjrra n pbhcyr bs uneq cynprf
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