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Vulcanic Smoke Signal
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The smoke signal is one of the oldest forms of long-distance communication. It is a form of visual communication used over long distance. In general smoke signals are used to transmit news, signal danger, or gather people to a common area.
Polybius, a Greek historian, devised a more complex system of alphabetical smoke signals around 150 BCE, which converted Greek alphabetic characters into numeric characters. It enabled messages to be easily signaled by holding sets of torches in pairs. This idea, known as the "Polybius square", also lends itself to cryptography and steganography. This cryptographic concept has been used with Japanese Hiragana and the Germans in the later years of the First World War.
The North American indigenous peoples also communicated via smoke signal. Each tribe had its own signaling system and understanding. A signaler started a fire on an elevation typically using damp grass, which would cause a column of smoke to rise. The grass would be taken off as it dried and another bundle would be placed on the fire. Reputedly the location of the smoke along the incline conveyed a meaning. If it came from halfway up the hill, this would signify all was well, but from the top of the hill it would signify danger.
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Attention: The following link starts the download of a file with further details needed to find the geocache. As the cache owner, I assure that the file is safe. It has not been reviewed by Groundspeak or a reviewer for any harmful content. You click this link at your own risk.
Pyvpx ba gur Cvpgher gb fbyir gur Fzbxr Fvtanyf sebz Trebavzb gb svaq uvf Gernfher:
Fcbvyrecubgb va gur Purpxre!
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Last Updated: on 5/24/2018 11:48:33 AM Pacific Daylight Time (6:48 PM GMT)
Coordinates are in the WGS84 datum