Mechanics of lifting devices. 19th-century illustration of cranes,pulleys and other mechanically operated lifting devices. Artwork from 'Course of Lectures on Natural Philosophy' (1807) by British physicist,physician and Egyptologist Thomas Young (1773-1829) | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Royal Institution of Great Britain |
Taille de l’image : | 3606 px × 4893 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |