alb3948711

Sir John Herschel, astronomer and scientist, 1810s. Artist: Gaspare Gabrielli.

Sir John Herschel, astronomer and scientist, 1810s. Portrait of John Herschel as a young man. The son of astronomer Sir William Herschel, John Herschel discovered 525 nebulae and clusters. He pioneered celestial photography, introducing 'hypo' (thiosulphate) as a photographic fixative. He discovered the cyanotype or blueprint process in 1842, and carried out research on photo-active chemicals and the wave theory of light. (Colorised black and white print).

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Titre: Sir John Herschel, astronomer and scientist, 1810s. Artist: Gaspare Gabrielli.

Légende: Voir la traduction automatique
Sir John Herschel, astronomer and scientist, 1810s. Portrait of John Herschel as a young man. The son of astronomer Sir William Herschel, John Herschel discovered 525 nebulae and clusters. He pioneered celestial photography, introducing 'hypo' (thiosulphate) as a photographic fixative. He discovered the cyanotype or blueprint process in 1842, and carried out research on photo-active chemicals and the wave theory of light. (Colorised black and white print).

Personnalités: HERSCHEL • SIR JOHN FREDERICK WILLIAM HERSCHEL

Crédit: Album / Heritage Images / The Print Collector

Autorisations: ? Autorisation de modèle: Non - ? Autorisation de propriété: Non
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Taille de l'image: 2136 × 2942 px | 18.0 MB

Taille d'impression: 18.1 × 24.9 cm | 840.9 × 1158.3 in (300 dpi)

Mots clés: ASTRONOMIE • BONHOMME • CÉLÈBRE • CELEBRITE • COULEUR • HERSCHEL • HOMME • INVENTEUR • PORTAIT • PORTRAIT • POTRAIT • SCIENCE: ASTRONOMIE • SIR JOHN FREDERICK WILLIAM HERSCHEL