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Gustav Kirchhoff, Robert Bunsen and Henry Roscoe, scientists, c1860. Left to right: Gustav Robert Kirchhoff (1824-1887), German physicist; Robert Wilhelm Eberhard von Bunsen (1811-1899)
Gustav Robert Kirchhoff, German physicist, 1873. Kirchhoff (1824-1887) is known for his work on electricity, heat and optics
Gustav Robert Kirchhoff, German physicist, 1876. Kirchhoff (1824-1887) is known for his work on electricity, heat and optics
Spectroscopic apparatus used by Robert Wilhelm Bunsen and Gustav Robert Kirchhoff, c1895Spectroscopic apparatus used by Robert Wilhelm Bunsen (1811-1899) and Gustav Robert Kirchhoff (1824-1887). Discovered Spectrum Analysis (1859)
