Mass communication is described by John Vivan as a, "technology-assisted process by which messages are sent to large, faraway audiences."
Johannes Gutenberg invented movable metal type and made the mass-production of written word possible.
The "shot heard around the world" (page 34) refers to Guglielmo Marconi's experiment with wireless messages. Marconi's brother was asked to fire a rifle to indicate that a Morse Code message had been received through a wireless telegraph.
Philo Farnsworth invented the television.
The electrical waves that would later be called Hertzian waves were originally called radi.
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