This write up discusses the role of inventions and discoveries in the establishment of radio. However some attention would first be directed to explaining the importance and uses of radio and radio waves as a communication device before diverting focus to discuss some inventors who played significant roles in establishing radio. The discussion will as well highlight some modern developments in the radio industry.
Radio continues to be accepted as one of the most indispensable medium of communication all over the world especially in efforts to break the walls of illiteracy and bring enlightenment to millions of people. It is a system of communication which employs and propagates electromagnetic waves through space. There are varying characteristics of radio waves therefore radio waves of different lengths are employed for different purposes and are usually identified by their frequency. Radio waves are used not only in radio broadcasting but are also used in two-way communication for law enforcement, telephone transmission, wireless Internet, television, navigational systems, GPS, and space communication. Radio enables people to send messages over long distances in the form of words, music, signals, etc. However it is commonly used for one-way communication, i.e. broadcasting; to broadcast music, news, discussion, interviews, sports, adverts and other programmes. Aside the one-way function of radio device, its signals is also employed by scientists to monitor weather conditions in the atmosphere.
The beginning of radio is traced back to the early 1920s. It important to indicate however that radio owes its invention to two other discoveries; the telegraph and the telephone. These two major discoveries until the invention of radio were the only means employed by people to send quick and long distance communications. It was during this era that inventors such as James Clark Maxwell, Heinrich
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