Lightboxes
Panier
alb3805178

John Herschel, English Polymath

John Frederick William Herschel, 1st Baronet (March 7, 1792 -May 11, 1871) was an English mathematician, astronomer, chemist, and experimental photographer/inventor, who in some years also did valuable botanical work. Herschel originated the use of the Julian day system in astronomy. He named seven moons of Saturn and four moons of Uranus. He made many contributions to the science of photography, and investigated color blindness and the chemical power of ultraviolet rays. Herschel wrote many papers and articles, including entries on meteorology, physical geography and the telescope for the Encyclopedia Britannica. He also translated The Iliad of Homer. He invented the actinometer in 1825 to measure the direct heating power of the sun's rays, and his work with the instrument is of great importance in the early history of photochemistry. He died in 1871 at the age of 79. He was given a national funeral and buried in Westminster Abbey.
Partager
pinterestPinterest
twitterTwitter
facebookFacebook
emailEmail

Ajouter à une autre Lightbox

Ajouter à une autre Lightbox
add to lightbox print share
Avez-vous déjà un compte? S'identifier
Vous n'avez pas de compte ? S'inscrire
Acheter cette image
Chargement...
Titre:
John Herschel, English Polymath
Légende: Voir la traduction automatique
John Frederick William Herschel, 1st Baronet (March 7, 1792 -May 11, 1871) was an English mathematician, astronomer, chemist, and experimental photographer/inventor, who in some years also did valuable botanical work. Herschel originated the use of the Julian day system in astronomy. He named seven moons of Saturn and four moons of Uranus. He made many contributions to the science of photography, and investigated color blindness and the chemical power of ultraviolet rays. Herschel wrote many papers and articles, including entries on meteorology, physical geography and the telescope for the Encyclopedia Britannica. He also translated The Iliad of Homer. He invented the actinometer in 1825 to measure the direct heating power of the sun's rays, and his work with the instrument is of great importance in the early history of photochemistry. He died in 1871 at the age of 79. He was given a national funeral and buried in Westminster Abbey.
Personnalités:
Crédit:
Album / Science Source / Smithsonian Institution Libraries
Autorisations:
Modèle: Non - Propriété: Non
Questions sur les droits?
Taille de l'image:
3000 x 3546 px | 30.4 MB
Taille d'impression:
25.4 x 30.0 cm | 10.0 x 11.8 in (300 dpi)
Mots clés: