Sujet
Charles Greeley Abbot, astrophysicist
Légende
Charles Greeley Abbot, astrophysicist and Secretary of the Smithsonian, with his device: a silver-disc pyrheliometer which measures direct beam solar irradiance ca. 1913-1917
Charles Greeley Abbot, astrophysicist and Secretary of the Smithsonian, with his device: a silver-disc pyrheliometer which measures direct beam solar irradiance ca. 1913-1917
Crédit
Photo12/Universal Images Group
Notre référence
UMG22A07_113
Licence
Droits gérés
Format disponible
42,0Mo (3,0Mo) / 38,1cm x 27,6cm / 4497 x 3261 (300dpi)