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'{{Short description|German electrical engineer}} '''Max Knoll ''' (17 July 1897 &ndash; 6 November 1969) was a German [[electrical engineer]]. Knoll was born in [[Wiesbaden]] and studied in [[Munich]] and at the [[Technical University of Berlin]], where he obtained his [[doctorate]] in the Institute for [[High Voltage]] Technology. In 1927 he became the leader of the electron research group there, where he and his co-worker, [[Ernst Ruska]], invented the [[electron microscope]] in 1931.<ref>[http://nobelprize.org/nobel_prizes/physics/laureates/1986/ruska-autobio.html Ernst Ruska Nobel Prize autobiography]</ref> In April 1932, Knoll joined [[Telefunken]] in [[Berlin]] to do developmental work in the field of [[television]] design. He was also a private lecturer in Berlin. After [[World War II]], Knoll joined the [[University of Munich]] as extraordinary professor and director of the Institute for Electromedicine. He moved to the [[United States|USA]] in 1948, to work at the Department of [[Electrical Engineering]] at [[Princeton University]]. In 1956 he returned to Munich and engaged in a series of experiments at the [[Technical University Munich|Technische Hochschule]], involving the generation of [[phosphene]]s by [[Electrical brain stimulation|electrically stimulating the brains]] of himself and other subjects. He retired in 1966. ==See also== *[[Scanning electron microscope]] *[[Transmission electron microscopy]] *[[poop]] ==References== * Knoll, Max & Kügler, J. (1959). "Subjective Light Pattern Spectroscopy in the Electroencephalic Range". ''Nature'' (London) 184:1823–1824. {{reflist}} {{Authority control}} {{DEFAULTSORT:Knoll, Max}} [[Category:1897 births]] [[Category:1969 deaths]] [[Category:Engineering educators]] [[Category:German electrical engineers]] [[Category:20th-century German inventors|Knoll, Max]] [[Category:Ludwig Maximilian University of Munich faculty]] [[Category:Microscopists]] [[Category:Princeton University faculty]] [[Category:Technical University of Munich alumni]] [[Category:Technical University of Munich faculty]] [[Category:Technical University of Berlin alumni]] [[Category:Scientists from Wiesbaden]] [[Category:Engineers from Hesse]] {{Germany-engineer-stub}}'