A calculating instrument with Napier's rods (7 St. 50 Min, 18 Nov 2018 Jahr – 20 St. 53 Min, 30 Jul 2019 Jahr)
Beschreibung:
In 1667 Sir Charles Cotterell, an English courtier and translator, devised a calculating instrument with Napier's rods, which included a wire-and-bead abacus for adding the partial products.Zugefügt zum Band der Zeit:
Datum:
7 St. 50 Min, 18 Nov 2018 Jahr
20 St. 53 Min, 30 Jul 2019 Jahr
~ 8 months