Technological innovation played a key role in the shaping of the formation of radio in the 1920s, making it possible to transmit and receive continuous sound-waves above and beyond the traditional telegraph systems.
Throughout history, technological innovation and development have been important forces in the advancing of society and how we behave and interact with one another. Even in 2010, technology is constantly changing; examples including the newest version of the iPhone, the expanding market for 4G internet, and the conversion of older visual devices to high definition. Before all these things could be developed, however, there had to first be an original idea: make telephones more portable, grant people access a world-wide database, create a device that allows viewers to watch moving pictures at home without having to go to a theater or drive-in. Then, once those ideas were put into motion, technological change over time shaped those industries into what they are today, and each one has its effects on society. Cell phones have opened many doors in giving consumers more ways of communicating with one another no matter where they are in the world; 4G Internet has significantly enhanced the speed at which consumers are able to access information on the go; high-definition televisions immerse viewers in pictures that seems so real, it's like they are there.
In the 1920s, technological change allowed the U.S. radio system to evolve to a more efficient and domestic means of communication. Before Lee de Forest's invention of the vacuum tube in 1906, transmitting coded message through wireless telegraph was the dominant form of communication, but through de Forest's invention, in addition to better microphones, amplifiers, tuners, and more powerful transmitters, radio broadcasting became an easier and more popular means of receiving news of events such as World War I. Radio signals became more amplified and sounds, voices, and music could be transmitted and received across the U.S. Retail suppliers, schools, and churches also saw potential in the budding radio industry as stations began opening in the 20s as a result of the changes in technology. The technological changes that took place in the early 1900s shaped the evolution of radio into a popular new medium for transmitting and receiving news, entertainments,and retail advertising.
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