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:
Mathematics
Year made :
c.1690
Inventory number :
1905-111
 

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