Template:Are You Sure/October 16
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• ... that physicist Gustav Kirchhoff (12 March 1824 – 17 October 1887) contributed to the fundamental understanding of electrical circuits, spectroscopy, and the emission of black-body radiation by heated objects; that Kirchhoff coined the term "black body" radiation in 1862; and that two different sets of concepts (one in circuit theory, and one in spectroscopy) are named "Kirchhoff's laws" after him?