Adding machine designed by Blaise Pascal in 1642 when he was 19 years-old. From La Nature, Paris, 1904. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Universal Images Group / Universal History Archive |
Taille de l’image : | 5458 px × 3842 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |