Essay Radio Broadcasting
It has programmes to suit all types of listeners of all age groups.
Thus for the common man, the radio has been a real teacher, a compendium book of knowledge for the ear.
The discovery of the wireless or radio goes back to the first decade of the 20th century and Sir Jagadis Bose was one of the pioneer-workers who made valuable contributions to this science. Lindberg to broadcast the story of his air fight across the Atlantic through a chain of 119 stations."Radio waves" transmit music, conversations, pictures and data invisibly through the air, often over millions of miles -- it happens every day in thousands of different ways!Even though radio waves are invisible and completely undetectable to humans, they have totally changed society.There is so much to be leant these days—progress going on everywhere, in all departments of life, and all over the world.Indeed, it is difficult to remain thoroughly upto-date in this fast developing world.Programmes of AIR’s Bividh Bharati earn a lot from advertisements.So the radio has brightened the home; the sickbed it has cheered, the young mind it has instructed, and the trade it has set going.An adjunct of broadcasting is the growth of television in which you not only hear a man speaking but you can see the man live with his words and movements.In America, in Ceylon, in Australia and in many other countries like India, commercial advertisements are allowed to be put up in the air for money.With just a couple of electronic components that cost at most a dollar or two, you can build simple radio transmitters and receivers.The story of how something so simple has become a bedrock technology of the modern world is fascinating!