{"id":1499,"date":"2020-10-26T15:59:56","date_gmt":"2020-10-26T14:59:56","guid":{"rendered":"https:\/\/www.mathematicus.it\/?page_id=1499"},"modified":"2025-06-08T09:16:03","modified_gmt":"2025-06-08T07:16:03","slug":"napiers-bones-calculating-using-the-ancient-method-invented-by-john-napier","status":"publish","type":"page","link":"https:\/\/www.mathematicus.it\/en\/napiers-bones-calculating-using-the-ancient-method-invented-by-john-napier\/","title":{"rendered":"Napier\u2019s Bones – Calculating using the ancient method invented by John Napier"},"content":{"rendered":"

Napier\u2019s Bones<\/h1>\n

Calculating using the ancient method invented by John Napier<\/em><\/h2>\n<\/div>
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Dating back to their invention in 1614, for three centuries these calculation rods were the chief instrument used to perform multiplications and divisions.<\/p>\n

The set of rods is a true reproduction of the original version designed by Napier as described in his work Rabdology<\/em>.<\/p>\n

The attached booklet provides complete instructions on how to perform mathematical calculations, historical information and interesting snippets of information on the subject.<\/p>\n<\/div>

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The attached 32 page booklet includes historical information, usage instructions in addition to many other interesting snippets of information.<\/em><\/p>\n

\u00a0<\/em><\/p>\n<\/div><\/div><\/div>

Technical information<\/strong><\/p>\n

Contents<\/strong>: base, 10 \u201cbones\u201d printed on 4 sides, 32 pages instruction booklet
\nMaterial:<\/strong>\u00a0wood
\nBox:<\/strong>\u00a0cardboard box 12,2 \u00d7 12,2 \u00d7 2,8 cm
\nWeight:<\/strong>\u00a0160 g
\nRetail price:<\/strong>\u00a0\u20ac 24,90<\/p>\n<\/div>