18th Century calculating machine. Diagram of a calculating machine designed by J. Rowning. Image from 'Directions for Making a Machine for Finding the Roots of Equations Universally,with the Manner of Using It: By the Rev. Mr. Rowning,to John Bevis',published by J. Rowning,on 1st January 1770 | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Royal Astronomical Society |
Taille de l’image : | 5811 px × 3083 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |