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COULD ANCIENT PERUVIANS SOFTEN STONE? Ancient Origins


http://www.ancient-origins.net/ancient-technology/could-ancient-peruvians-soften-stone-00847


The “standard” explanation is that the Incans somehow managed to use a “guess and check” method of chipping at the stone with their stone tools, then setting the stone in place, seeing how it fit, then lifting it up and chipping further if it didn’t fit, then checking again, and so on.

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