Gustav Kirchhoff, German physicist and chemist (born 1824)

Gustav Kirchhoff

German chemist, mathematician, physicist, and spectroscopist (1824–1887)

Gustav Robert Kirchhoff was a German chemist, mathematician, physicist, and spectroscopist who contributed to the fundamental understanding of electrical circuits, spectroscopy and the emission of black-body radiation by heated objects. He also coined the term black body in 1860.