Spectral Lines The spectral lines of pure iron, shown above, give an idea of the complexity of the task of measuring metal spectra. The precise wavelength for the position of each line had to be measured; furthermore, since some lines are very much fainter than other...
Spectra Laboratory The spectra laboratory was located in a large room on the first floor of the Papal Summer Palace, next to the center courtyard, in the eastern side of the palace overlooking Lake Albano. The Jesuit community was located immediately above this room;...
Gizmo This device, manufactured by Zeiss, was used to make the precise measurement of the positions of each spectral line, which then went into the atlas of lines for each given metal. Area 3 Group 1 • Group 2 • Group...
Spectrochimical Acta In 1939, Gatterer and his colleagues founded a journal, Spectrochimical Acta, to report their work in this new field. It published two volumes before 1944, when the war forced a halt. Immediately after the war, Gatterer took over all the editing...
Astrolabe (perhaps) by Gualterus Arsenius This is one of the two astrolabes given to Pope Leo XIII by Father Vincenzo Gisoldi in 1889. This is the larger astrolabe (with a diameter of 345 mm and a thickness of 8 mm) is of the Flemish school, made perhaps by Gualterus...
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