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  1. Vor 16 Stunden · Bell and his assistant Charles Sumner Tainter jointly invented a wireless telephone, named a photophone, which allowed for the transmission of both sounds and normal human conversations on a beam of light. Both men later became full associates in the Volta Laboratory Association.

  2. Vor 16 Stunden · Regularly scheduled electronic broadcasts began in April 1938 in New York (to the second week of June, and resuming in August) and Los Angeles. "Telecasts Here and Abroad," The New York Times, April 24, 1938, Drama-Screen-Radio section, p. 10; " Early Birds ," Time, June 13, 1938; "Telecasts to Be Resumed," The New York Times, Aug. 21, 1938 ...