Friedrich Paschen

Louis Karl Heinrich Friedrich Paschen , was a German physicist, known for his work on electrical discharges. He is also known for the Paschen series, a series of hydrogen spectral lines in the infrared region that he first observed in 1908. He established the now widely used Paschen curve in his article ber die zum Funkenbergang in Luft, Wasserstoff und Kohlensure bei verschiedenen Drcken erforderliche Potentialdifferenz. He is also known for the PaschenBack effect, which is the Zeeman effects becoming nonlinear at high magnetic field.

Paschen was born in Schwerin, MecklenburgSchwerin. From 1884 to 1888 he studied at the universities of Berlin and Strassburg, after which he became an assistant at the Academy of Mnster. He became a professor at the Technical Academy of Hanover in 1893 and professor of physics at the University of Tbingen in 1901. He served as president of the PhysikalischTechnischen Reichsanstalt from 192433 and an honorary professor of the University of Berlin in 1925.

Source: Wikipedia