Abstract
This paper is devoted to the personality, scientific and social activities of Jaroslav ŠSafránek (1890-1957), a Czechoslovak professor of experimental physics who, in the second half of the 1930s, designed a system for the transmission of visual images by low-line mechanical television, which made the production of an authentic spatial impression of the picture, transmitted on the screen, possible. Although experts and the general public acclaimed this invention, the innovation failed to find practical application in Czechoslovakia at that time. That one of the most interesting innovations in television could not be implemented was due to the prevailing red tape in state authorities, internal political quarrels, the political situation prior to World War II, and subsequent postwar developments.
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