George and Edward Scheutz's calculating machine. Based on Babbage's 'difference engine',it was developed between 1837 and 1843. Purchased for Dudley Observatory,Albany,New York. Copy made by Donkins for calculating Life Tables at Somerset House,London. Wood engraving,1855 | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / UIG / Universal History Archive |
Taille de l’image : | 6000 px × 3216 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |