BIOGRAPHY ROBERT KIRCHHOFF

Gustav Robert Kirchhoff was born March 12, ladder, 1824 and died on October 17, 1887, he is a Germany physicist who contributed to the understanding of the basic concepts of the theory of electrical circuits, spectroscopy, and the emission of a black body radiation is produced by heated objects. He coined the term "black body" radiation in 1862. There are 3 different physics concept which was later named after his name, "Kirchhoff's laws", respectively in the theory of electrical circuits, spectroscopy, and thermodynamics.

Gustav Kirchhoff was born in Königsberg, East Prussia (now Kaliningrad, Russia), son of Friedrich Kirchhoff, a lawyer, and Johanna Henriette Wittke. He graduated from the University of Albertus Königsberg (now Kaliningrad) in 1847 and married Clara Richelot, the daughter of Professor Richelot, Friedrich-skills. In the same year, they moved to Berlin, where he received a professorship at Breslau (now Wroclaw).

Kirchhoff formulated his circuit laws, which are now used in electrical engineering, in 1845, when he was still a student. He proposed the law of thermal radiation in 1859, and prove it in 1861. In Breslau, he collaborated in the study of spectroscopy by Robert Bunsen. He was the inventor of the caesium and rubidium companion in 1861 when studying the chemical composition of the Sun via its.

In 1862 he was awarded the Rumford Medal for his research about the spectral lines of the Sun, and the reversal of the lines in the spectra of bright artificial light. He plays a major role in the field of spectroscopy by formalizing three laws that describe the composition of the optical spectrum incandescent objects, based on the discoveries of David Alter and Anders Jonas Angstrom (see also: spectrum analysis)

The Law Of Kirchhoff In Spectroscopic

• If a liquid or high-pressure gas dipijarkan, will produce light with a continuous spectrum.

• When a low-pressure gas objects dipijarkan, will produce light with emission spectrum, in the form of streaks of light at discrete wavelengths (in certain colors) depend on the energy levels of atoms contained the gas.

• When a continuous spectrum is passed on a low-pressure cold gas objects, will produce light with a spectrum of loan, in the form of dark lines at discrete wavelengths depend on the energy levels of atoms contained cold gas.