Napier's bones

Made:
1671-1700 in England
maker:
Unknown
Napier's bones or rods, wood, in case. Napier's bones, cylindrical type, late 17th century. John Napier (1550-1617), Napier's bones or rods, wood, in case. Napier's bones, cylindrical type, late 17th century. John Napier (1550-1617), Napier's bones or rods, wood, in case. Napier's bones, cylindrical type, late 17th century. John Napier (1550-1617), Napier's bones or rods, wood, in case. Napier's bones, cylindrical type, late 17th century. John Napier (1550-1617), Napier's bones or rods, wood, in case. Napier's bones, cylindrical type, late 17th century. John Napier (1550-1617), Napier's bones or rods, wood, in case. England, United Kingdom. 1671-1700. SCM - Mathematics Napier's bones or rods, wood, in case. England, United Kingdom. 1671-1700. SCM - Mathematics

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Napier's bones or rods, wood, in case. Napier's bones, cylindrical type, late 17th century. John Napier (1550-1617),
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Napier's bones or rods, wood, in case. Napier's bones, cylindrical type, late 17th century. John Napier (1550-1617),
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Napier's bones or rods, wood, in case. Napier's bones, cylindrical type, late 17th century. John Napier (1550-1617),
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Napier's bones or rods, wood, in case. Napier's bones, cylindrical type, late 17th century. John Napier (1550-1617),
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Napier's bones or rods, wood, in case. Napier's bones, cylindrical type, late 17th century. John Napier (1550-1617),
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Napier's bones or rods, wood, in case. England, United Kingdom. 1671-1700. SCM - Mathematics
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Napier's bones or rods, wood, in case. England, United Kingdom. 1671-1700. SCM - Mathematics
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Napier's bones or rods, wood, in case

Napier's bones, cylindrical type, late 17th century. John Napier (1550-1617), discoverer of logarithms, created the popular calculating tool known as Napier's rods or bones. Napier's rods reduced multiplication to a sequence of simple additions; division and square roots could also be achieved.

Details

Category:
Mathematics
Object Number:
1876-931
Materials:
box (wood) and brass (copper, zinc alloy)
Measurements:
Box open: 75 mm x 230 mm x 115 mm, .28 kg
type:
napier's bones
credit:
Dring and Fage