Thomas Edison,American inventor

Numéro d’image : 11828413
Thomas Edison,American inventor
Thomas Edison (1847-1931),American inventor. Edison sitting next to his favourite invention,the phonograph,which could record sound. The phonograph consisted of a foil wrapped around a cylinder. When recording,a free-floating needle connected to a sound receiver was skimmed over the foil as the cylinder was rotated. The needle vibrated in time to the sound waves and made etchings in the foil. These etchings could then be 'played back'. Despite a lack of formal training,Edison was a prolific inventor,patenting about 1300 innovations. He made only one scientific discovery,the Edison Effect,which formed the basis of the thermionic valve. Photographed in 1878
Licence : Droits gérés
Crédit: Science Photo Library / Library of Congress
Taille de l’image : 2794 px × 4042 px
Model Release : Le droit n'est pas encore disponible. Merci de nous contacter avant utilisation.
Property Release : Non requis
Restrictions : -

Prix pour cette image À partir de 45 €

Produit vendu
(Calendrier, Carte postale, Carte de vœux, Impression sur textile, Packaging etc)
À partir de 45 €
Usage commercial
(Affichage, Annonce presse, Annonce TV, Carte, Digital - hors rés. sociaux, Digital - rés. sociaux etc)
À partir de 45 €
Éditorial
(Digital, Journal, Livre, Livre pratique, Magazine, Télévision etc)
À partir de 60 €
Usage non-commercial
(Digital - hors rés. sociaux, Digital - rés. sociaux etc)
À partir de 120 €

Mots clés

;