Title
Jean Baptiste Biot
Caption
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
19th century
Credit line
Photo12/Ann Ronan Picture Library
Reference
ARP07103_460000567
License type
Rights managed
Available size
27,4Mb (3,1Mb) / 9,0in x 11,8in / 2708 x 3543 (300dpi)