Scottish mathematician John Napier (1550–1617) created Napier's Bones, so-called because they were made out of ivory or bone.
Napier's Bones
Although John Napier is mainly ...
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Napier's Rods
Napier's rods (or bones) were a set of graduated rods used as a mechanical aids to calculation beginning in the early seventeenth century. Scottish mathematician John Napier (1550-1617) ...
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Napier's Bones
John Napier (1550-1617), a fifteenth century Scottish mathematician, noted that the astrologers and surveyors of his time toiled over their complex mathematical computations. He had lon...
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Napier's Bones
Napier's Rods
Napier's Bones