MDSA01H3 Chapter Notes - Chapter 1: Thomas Edison, Perceptor, Principes
Document Summary
Things we know through direct sensory perception of our environment(personal experience) Things we know through some indirect channel or medium (parent, textbook, radio, Latin medius" means middle" or that which comes between two things. Communication technologies that have the potential to reach a large audience in remote locations. 19th & 20th centuries, the newspaper industries experienced explosive growth. Growth stopped in 1973, and from thereon has been declining steadily. Despite the decline, print media is still a part of the mass media. Thomas edison created the phonograph (sound) in 1877. 1920s: talkies were films that sync"d sound & film. 20th century, sales of sound recordings overcame the sales of sheet music because of the many cheap reproducible formats that developed over the years (lp, cds etc. ) Radio (experiments in 1890s) broadcasts started in 1920s. Federal communications commission (fcc) sorted out broadcast frequencies for radio in 1945 and tv in 1952, and then commercial broadcast spread rapidly.
