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History
Gustav Kirchhoff
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Gustav Robert Kirchhoff was a German physicist and mathematician who contributed to the fundamental understanding of electrical circuits, spectroscopy, and the emission of black-body radiation by heated objects.
Gustav Kirchhoff
Gustav Kirchhoff
Kirchhoff (left) and Robert Bunsen, c. 1850
Kirchhoff (left) and Robert Bunsen, c. 1850
Spectroscopy
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Spectroscopy is the field of study that measures and interprets electromagnetic spectra. In narrower contexts, spectroscopy is the precise study of color as generalized from visible light to all bands of the electromagnetic spectrum.
An example of spectroscopy: a prism analyses white light by dispersing it into its component colors.
An example of spectroscopy: a prism analyses white light by dispersing it into its component colors.
A huge diffraction grating at the heart of the ultra-precise ESPRESSO spectrograph.
A huge diffraction grating at the heart of the ultra-precise ESPRESSO spectrograph.
UVES is a high-resolution spectrograph on the Very Large Telescope.
UVES is a high-resolution spectrograph on the Very Large Telescope.
Atomic spectra comparison table, from "Spektroskopische Methoden der analytischen Chemie" (1922).
Atomic spectra comparison table, from "Spektroskopische Methoden der analytischen Chemie" (1922).