Polynesian stick charts were mapping wave patterns
Polynesian Stick Charts were completely different way of navigation, they were mapping not only locations, but also oceanic swells, patterns of waves.
Specific map encoding was closely guarded secret, known only to group of navigators who own them.
Navigating by the wave pattern navigator “would crouch in the bow of his canoe and literally feel every motion of the vessel.”They “concentrated on refraction of swells as they came in contact with undersea slopes of islands and the bending of swells around islands as they interacted with swells coming from opposite directions.”
Fascinating staff, kind of technology which could have been developed by alien, or in alternate history line.
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