Pascal's (1623-1664) digital counting machine (1642) showing,top,two of the train of number wheels which were viewed through windows in the casing of the machine. Engraving from Denis Diderot Encyclopedie,Paris,1751-1780 | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / UIG / Universal History Archive |
Taille de l’image : | 4697 px × 7442 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |