him. TYK In 1919, Lee De Forest filed patents for his sound-on-film process Phonofilm, unaware of Tykociner's work. DeForest, working with Theodore Case, produced several short films in 1921 and 1922, and introduced Phonofilm at a presentation at the Rivoli Theater in New York City on April 15, 1923. Case and DeForest had a falling out, and Case took his patents to William Fox, who used Case's patents to develop Fox Movietone. Radar In the 1920s, Tykociner did antenna design research that was a precursor to radar. Zetetics After his official retirement in 1946, he did research in a new field he termed "zetetics," (not to be confused with zeteticism, Marcello Truzzi's term for scientific skepticism), which Tykociński-Tykociner described as the collection and systematization of "all information about research activities, including creative processes, with the view of extending that knowledge which leads to discoveries, inventions, and the solution of human problems." This included the study of the science of research and the relationship between science and art. When he died in 1969 in Urbana, Illinois, his estate and papers were left to the university. The Tykociner Memorial Lectures began in 1972 with a lecture by Dennis Gabor. Through 1998, other distinguished scientists and artists spoke on the relationship between science and the arts, including Leon Cooper, Leon Lederman, and Freeman Dyson. In 2002 the lectures were changed to weekly lectures in the Department of Electrical and Computer Engineering. See also List of multiple discoveries List of Poles Eric Tigerstedt Heinz von Foerster Charles A. Hoxie List of film sound systems Notes External links , showing five second clip at beginning from Tykociner 1922 sound on film demo. 1877 births 1969 deaths Polish engineers Congress Poland emigrants to the United States American engineers American inventors American scientists 19th-century Polish Jews Fellows of the American Physical Society