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Signs of the Inka Khipu: Binary Coding in the Andean Knotted-String Records - Gary Urton

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Signs of the Inka Khipu: Binary Coding in the Andean Knotted-String Records - Gary Urton"Urton's work is scholarly and painstakingly thorough and is a valuable contribution to our understanding of Inca inscription that makes good use of ethnographic and ethnohistorical work on the Andean region." The Journal of the Royal Anthropological Institute "This is by far the most important monograph on Andean systems of information registry since the Ashers' volumes in the late 1970s. Urton provides a platform for a whole new generation of

"Urton's work is scholarly and painstakingly thorough and is a valuable contribution to our understanding of Inca inscription that makes good use of ethnographic and ethnohistorical work on the Andean region." -- The Journal of the Royal Anthropological Institute "This is by far the most important monograph on Andean systems of information registry since the Ashers' volumes in the late 1970s. Urton provides a platform for a whole new generation of studies." -- Frank Salomon, Professor of Anthropology, University of Wisconsin-Madison In an age when computers process immense amounts of information by the manipulation of sequences of 1s and 0s, it remains a frustrating mystery how prehistoric Inka recordkeepers encoded a tremendous variety and quantity of data using only knotted and dyed strings. Yet the comparison between computers and khipu may hold an important clue to deciphering the Inka records. In this book, Gary Urton sets forth a pathbreaking theory that the manipulation of fibers in the construction of khipu created physical features that constitute binary-coded sequences which store units of information in a system of binary recordkeeping that was used throughout the Inka empire. Urton begins his theory with the making of khipu, showing how at each step of the process binary, either/or choices were made. He then investigates the symbolic components of the binary coding system, the amount of information that could have been encoded, procedures that may have been used for reading the khipu, the nature of the khipu signs, and, finally, the nature of the khipu recording system itself-- emphasizing relations of markedness and semantic coupling. This researchconstitutes a major step forward in building a unified theory of the khipu system of information storage and communication based on the sum total of construction features making up these extraordinary objects.

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SKU: 57487456935

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David Williams
Boise, US
★★★★★ 5
Use as directed, when needed, and you'll be good to go.
A must have if you have a need for a ZDDP additive. This won't fix your worn valve seats, leaking piston rings, seasonal depression or gout but it will improve the lubricating properties of a quality oil in a properly maintained motor for your longevity goals.
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Reviewed in the United States on February 5, 2026
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Michael R.
Natrona Heights, US
★★★★★ 5
Every oil change for bikes
I use this in my bike every oil change
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Reviewed in the United States on April 8, 2026
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Larry Musgrave
Los Angeles, US
★★★★★ 5
Buddy filled diesel skid steer with automotive gas engine oil. Used this to help.
We all know that guy who will buy a $65,000 machine and then only service it once a year with the cheapest oil on the shelf from Rural King or some other place with ultra cheap, home branded, questionably quality oil. Yep. That is my good buddy. So I go to the shop a couple weeks back and he is re-filling the skid steer engine with some ultra cheap, totally not to spec, gas engine oil. I question him and he states that it is perfect oil for the machine being 5W-30. I ask him if it meets the SAE ratings for the diesel, he repeats back that yep... it is 5W-30. So I go grab his New Holland book (C232 track skid steer) and look up the oil requirements, then I look at this junk oil, and I try to explain to him the SAE designations on the back of the bottle and the SAE requirements in the book. He looks at me like I have 3 heads and repeats that it is 5W-30, it is totally good. Someone.... kill me please! He has no clue what I am trying to explain. So I couldn't sleep knowing what he is doing, and I ran to Amazon to see if I can at least get zinc to add to the wrong oil and try to help the cam followers and rockers survive this next year. I found this. I ordered a few bottles and had them shipped to his shop, and I explained to him that these need to be dumped in to at least make an attempt in not prematurely wear the engine that likely is worth $20,000 or more! So the real question is, will he actually dump these into the machine, or will he toss them on a shelf never to be seen again? We may never know. But I bet next winter he will once again shop for the cheapest oil on earth to put in a machine that costs as much as some peoples home. He is who he is, you can never change that.
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Reviewed in the United States on February 6, 2023
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J. Bee
Charlottesville, US
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Works good for my old tractor
Put it in my old 1953 Ford Golden Jubilee
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Reviewed in the United States on September 28, 2025
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Karen Champlin
Lowell, US
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Worthy buy!
These are high quality clips. The tool is nice and strong.
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Reviewed in the United States on December 28, 2025

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