Tagged: calculating aids

napier’s bones

napier's bones
A set of Napier’s Bones

Yesterday visited Traquair House near Innerleithen. They have a set of Napier’s Bones on display. The above set of calculating aids may have been used by JN himself according to a note in the display case.

Wolfram.com on Napier’s Bones
Wikipedia on Napier’s Bones
Nrich on Napier’s Bones

Also on display was this abacus

An abacus