Portrait of the American inventor and painter Samuel Morse (1791-1872). Morse graduated at the University of Yale in 1810 and in 1811 he visited England to study painting,returning in 1815 to earn his living as a portrait painter. In 1832,after having been helped by the American physicist J. Henry,he had the idea of a design for the electric telegraph. In 1844 the first telegragh line,about 65km long,was completed linking Washington to Baltimore. The first message sent by Morse was "What hath God wrought"; it was sent in a code of dots and dashes,the Morse code,which he had deviced in 1838. Morse never acknowledged the help received by J. Henry | |
Licence : | Droits gérés |
Crédit: | Science Photo Library |
Taille de l’image : | 3449 px × 5182 px |
Model Release : | Le droit n'est pas encore disponible. Merci de nous contacter avant utilisation. |
Property Release : | Non requis |
Restrictions : | - |