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![A set of Napier's bones. An early type of calculator capable of addition, subtraction, multiplication, division as well as extracting square roots. England, ~1679 AD. [1280x1232] : r/ArtefactPorn](https://preview.redd.it/z0jf7ct36qq11.jpg?auto=webp&s=1ccc4dfb18766ca90bd420408bdc4b9a74ae08bd "A set of Napier's bones. An early type of calculator capable of addition, subtraction, multiplication, division as well as extracting square roots. England, ~1679 AD. [1280x1232] : r/ArtefactPorn")
A set of Napier's bones. An early type of calculator capable of addition, subtraction, multiplication, division as well as extracting square roots. England, ~1679 AD. [1280x1232] : r/ArtefactPorn
Take and Make: Napier's Bones Calculator - MathHappens
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Take and Make: Napier's Bones Calculator - MathHappens
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