Spectroscopy in a new light.


Scientific spectroscopy really began in Uppsala, Sweden, where Anders Ångström in 1853 showed that some of the lines in the spectrum of an electric spark come from the metal electrodes and others from the gas between them. Even earlier, Joseph Fraunhofer had charted the dark lines in the spectrum of the sun, and had measured their wavelengths. But it was… (More)


15 Figures and Tables