Bunsen-Kirchhoff Spectroscopic Apparatus, 1869

Bildnummer 12631230
Bunsen-Kirchhoff Spectroscopic Apparatus, 1869
Spectroscopic Apparatus, Steel engraving, 1869. In 1855 Robert Bunsen had created the Bunsen burner for use in flame tests of various metals and salts: its non-luminous flame did not interfere with the colored flame given off by the test material. This line of work led to the spectroscope. It was Kirchhoff who suggested that similarly colored flames could possibly be differentiated by looking at their emission spectra through a prism. When he shone bright light through such flames, the dark lines in the absorption spectrum of the light corresponded in wavelengths, with the wavelengths of the bright, sharp lines characteristic of the emission spectra of the same test materials. A spectroscope is an instrument for producing and observing spectra.
Lizenzart: Lizenzpflichtig
Credit: Science Photo Library / Science Source
Bildgröße: 3600 px × 2694 px
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