Teens-and-Mobile-Phones (1)

9 pew internet american life project teens and mobile

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Unformatted text preview: mmunications scholar Thomas Farley, the headlights of a car would noticeably dim when the user was transmitting a call. 9 Pew Internet & American Life Project Teens and Mobile Phones | 16 In the drive to produce a more efficient mobile telephone system, researchers W. Rae Young and Douglas Ring of Bell Labs developed the idea of cellular telephony, in which the telephones were large, energy intensive car -mounted devices. According to communications scholar Thomas Farley, the headlights of a car would noticeably dim when the user was transmitting a call. 9 In the drive to produce a more efficient mobile telephone system, researchers W. Rae Young and Douglas Ring of Bell Labs developed the idea of cellular telephony, in which geographical areas are divided into a mesh of cells, each with its own cell tower. 10 This allowed a far more efficient use of the radio spectrum and the "cell" phones needed less power to send and receive a signal. The first installation was in 1969 on the Amtrak Metroliner that traveled between New York C...
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