Napier's Bones, c.1690.

Napier's Bones, c 1690.
Set of Napier's bones in boxwood, in a boxwood case. John Napier (1550-1617), discoverer of logarithms, also created this popular calculating tool known as Napier's cylindrical 'rods' or 'bones'. Napier's bones reduced muliplication to a sequence of simple additions and could also be used for division and to calculate square roots.
Currently on display in:
Year made :
Inventory number :
Xsl file could not be processed

Related Images

2 related image(s)