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Logarithms Collection

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Logarithms Collection: Tubular Slide Rule

Tubular Slide Rule
OTIS KING TUBULAR SLIDE RULE a mechanical calculating devise using addition & subtraction of logarithms to simplify division and multiplication Date: circa 1960

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Logarithms Collection: John Napier (Stewart)

John Napier (Stewart)
JOHN NAPIER Laird of Merchiston Scottish mathematician, inventor of logarithms Date: 1550-1617

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Logarithms Collection: John Napier, Scottish mathematician

John Napier, Scottish mathematician
John Napier, 8th Laird of Merchiston, Scottish mathematician, physicist, astronomer and astrologer, inventor of logarithms

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