Gustav Robert Kirchhoff was born in Königsberg, East Prussia on 12th March 1824.
He graduated in 1847 from the Albertus University of Königsberg where he attended the mathematic-physical seminar directed by Carl Jacobi, Franz Neumann and Friedrich Richelot.
In the year 1950, Kirchoff went to Breslan as an adjunct professor and in 1854 as a full professor to Heidelberg where he spent twenty years.
In 1857 he calculated that an electric signal in a resistance less wire travels along the wire at the speed of light.
In 1865 he was able to show that the variation of the heat of a chemical reaction is given by the difference in heat capacity between products and reactants.
In 1859 to 1862 Kirchhoff and Robert Bunsen together accomplished the great discovery of spectrum analysis.
In 1862 he was awarded the Rumford Medal for his researches on the fixed lines of the solar spectrum and on the inversion of the bright lines in the spectra of artificial light.
In 1875 he received and accepted a call to the University of Berlin to become director of the projected solar observatory at Potsdam.
The most favorite and admirable work of Kirchhoff at Berlin was his course of lectures on mathematical physics.
Kirchhoff died in 1887 and was buried in Berlin.
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