Sujet
Illustration of Robert Bunsen
Légende
With the aid of the spectroscope, which they invented in 1859, German chemist Robert Bunsen and physicist Gustav Kirchhoff discover that vaporizing a substance creates a unique 'signature' spectrum, which can be used to identify it. Using the spectroscope, in 1860, Bunsen and Kirchhoff discover two new alkali metalsócesium and rubidium
Date
19e siècle
Crédit
Photo12/Ann Ronan Picture Library
Notre référence
ARP18A29_268
Licence
Droits gérés
Format disponible
60,0Mo (1,2Mo) / 31,6cm x 47,5cm / 3738 x 5610 (300dpi)