Attempt to make a tool with Napier's rodsple of a time span (7 ore 50 min, 18 nov 2018 anni – 20 ore 53 min, 30 lugl 2019 anni)
Descrizione:
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.
Aggiunto al nastro di tempo:
Data:
7 ore 50 min, 18 nov 2018 anni
20 ore 53 min, 30 lugl 2019 anni
~ 8 months