Napier's bones (1 gen 1617 anni – 20 ore 53 min, 30 lugl 2019 anni)
Descrizione:
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 bonesAggiunto al nastro di tempo:
Data:
1 gen 1617 anni
20 ore 53 min, 30 lugl 2019 anni
~ 402 years