Radio is one of the oldest sources of entertainment for lot of people all over the world. Radio has been successfully entertaining people for a long long time. Long before the invention of radio people of the world became habituated with this wonderful instrument that used to provide different types of entertainment and amusement to them. Thanks to the visual impact which is made by the television set, programs presented by the TV channels are more popular to people nowadays, but still there are lot of people who enjoy listening to radios. In order to compete with the television, major modifications have been made in the way of presentation of programs in the radio and now wide variety of programs are available there too. There are thousands of radio stations all over the world that offer different types of programs for entertaining people like cultural programs, musical programs. Items from music albums of popular artistes, songs from popular films are the most popular. Besides, chat shows, interviews of celebrities, live commentary of sports events and news are also presented by general and FM radio stations all over the world. In fact the popularity of the programs presented by the FM radio stations has reached such a level that reputed mobile phone manufacturing companies are now providing FM radio facility in the handsets so that people can get entertainment stuffs.
Speaking about radio we must say a few things about its history and the technology. Radio is actually the name of the system of transmission of signals by the modulation of electromagnetic waves with frequencies. The waves involving frequencies below that of visible light are known as radio waves. Vibrating fields are created in an electrical conductor due to the induction of alternating currents. The wave of current causes the production of mechanical or sound waves to transmit the necessary information. This is the the basis of functioning of a radio apparatus. People make required adjustments in their radio sets by tuning the frequency of the emitted sound for changing the stations. The history of radio is very interesting. Though there is a controversy regarding th inventor of radio, Italian scientist, Guglielmo Marconi is considered as the inventor of this wonderful technology. However other famous scientists like David E Hughes, Heinrich Hertz, Nikola Tesla, Sir Jagdish Chandra Bose and Roberto Landell de Moura also made major contributions in the invention of radio.
|
Radio service is largely available almost all over the world and there are thousands of general and FM radio stations all over the world. Thanks to the popularity of the programs, the radio channels are now creating employment opportunity for lot of people. People are joining radio stations to work as news readers, announcers, anchors and radio jockey. In fact radio jockeying is one of the most popular profession nowadays and radio stations all over the world are recruiting lot of young, enthusiastic and talented people in this post.
|
|
|
