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Attempt to make a tool with Napier's rodsple of a time span (7 h 50 min, 18 nov 2018 ans – 20 h 53 min, 30 juill. 2019 ans)

Description:

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.

Ajouté au bande de temps:

Date:

7 h 50 min, 18 nov 2018 ans
20 h 53 min, 30 juill. 2019 ans
~ 8 months