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. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Heritage Images / Ann Ronan Picture Library |
Taille de l’image : | 4420 px × 2370 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |