CS101 Chapter Notes - Chapter 4: Album-Oriented Rock, Talk Radio, Drive Time
Document Summary
The signals carried on the electromagnetic spectrum to almost every nook and cranny. This was especially evident during the 2003 blackout when people turned their portable radios on to listen in. Radio is a perfect fit for modern life; it"s effortless, easy to listen to during other activities; entertains and informs throughout the day; is compatible with other media and provides a soundtrack for life . The audience is slipping from the traditional stations to ipods, direct to listener satellite services, webcasts and cell phones. Canadians aged 12-34 are listening to less radio than in the past. Energy waves on which radio messages are piggybacked. As early as 1873, physicists speculated that the electromagnetic spectrum existed, but it was an italian nobleman, guglielmo marconi, who made practical application of the physicists" theories while living in. In 1906, lee de forest, a promoter who fancied himself as an inventor, created what he called the audion tube to make voice transmission possible.
