Napier's bones (1 Jan 1617 Jahr – 20 St. 53 Min, 30 Jul 2019 Jahr)
Beschreibung:
Napier's bones are a manually-operated calculating device created by John Napier of Merchiston, Scotland for calculation of products and quotients of numbers. With a method based on lattice calculating. The rods looked like bones which is why it was called Napier’s bonesZugefügt zum Band der Zeit:
Datum:
1 Jan 1617 Jahr
20 St. 53 Min, 30 Jul 2019 Jahr
~ 402 years