Spectroscope, 1882. A spectroscope of the type used by Gustave Robert Kirchhoff (1824-1887) and Robert Wilhelm Bunsen (1811-1899) in studying the emission spectra of heated chemical elements. From Physics in Pictures by Theodore Eckardt.
Science & Nature Technology & Innovation
Science & Nature Discovery & Exploration
Pixel Dimensions (W x H) : 3302x5287
File Size : 51,146kb