Adolf Wüllner

Adolf Wüllner (13 June 1835, in Düsseldorf – 6 October 1908, in Aachen) was a German physicist.

He studied physics at the University of Bonn, the Ludwig-Maximilians-Universität München, and the Friedrich Wilhelm University of Berlin, qualifying as a lecturer at Marburg University in 1858. In 1862, he became director of the vocational school in Aachen, and three years later taught classes in physics at the Poppelsdorf agricultural academy. In 1867, he was named an associate professor at the University of Bonn, and from 1869 onward, was a professor of physics at the Technical University of Aachen. From 1883 to 86, he served as academic rector.

He is remembered for his work on the specific heat of liquids and gases, vapor tension, refractive indexes and emission spectra.