computersciencegothic: Images from the Wikimedia Commons Napier’s Bones category.“Napier’s bones are a manually-operated calculating device created by John Napier of Merchiston, Scotland for calculation of products and quotients of numbers. The

computersciencegothic: Images from the Wikimedia Commons Napier’s Bones category.“Napier’s bones are a manually-operated calculating device created by John Napier of Merchiston, Scotland for calculation of products and quotients of numbers. The

tags: ciel62,

from: https://ciel62.tumblr.com/post/185951091841