Sujet
Jean Baptiste Biot
Légende
Jean Baptiste Biot (1774-1864) and Joseph Louis Gay-Lussac (1778-1850), left, making measurements at a height of 4,000 metres during their balloon ascent of 20 August 1804. This was the first balloon ascent made specifically for scientific purposes. From
Date
19e siècle
Crédit
Photo12/Ann Ronan Picture Library
Notre référence
ARP07103_460000567
Licence
Droits gérés
Format disponible
27,4Mo (3,1Mo) / 22,9cm x 30,0cm / 2708 x 3543 (300dpi)