Attempt to make a tool with Napier's rodsple of a time span (7 St. 50 Min, 18 Nov 2018 Jahr – 20 St. 53 Min, 30 Jul 2019 Jahr)
Beschreibung:
In the early 1650s, Pierre Petit , a King Counsellor and Intendant des Fortifications made an attempt to make a tool with Napier's rods. Petit placed paper strips with Napier's rods and made a mechanism, the so called Arithmetical Cylinder or Tambour de Petit allowing the paper strips to be moved along the axes.Zugefügt zum Band der Zeit:
Datum:
7 St. 50 Min, 18 Nov 2018 Jahr
20 St. 53 Min, 30 Jul 2019 Jahr
~ 8 months