Essay On Radio
Human beings are always in search of some of the other means of entertainment. We try to invent something for our benefit and to lead a peaceful life. Radio is one of them. Marconi of Italy tried to transmit the sound waves from one place to another. During this process, he succeeded in transmitting messages from England to New Zealand in 1901. Indian scientist Jagdish Chandra Basu had also tried to do the same experiment but before he could come out with any conclusion, Marconi had finished his experiment. So, all credit for inventing the radio goes to Marconi.
The first radio station in India was established in 1927. Today we have lots of radio stations all over the country. But how does a radio work? The sound waves are first converted into an electrical impulse at the radio station. The waves are then transmitted through the air and the receiver of the radio catches these waves. We can listen to the sound when we put on the radio. Thus we can hear different programs through the radio.
Radio relay stations are of three types, namely local, national and international. We can adjust the pointer of the radio and by tuning it we can listen to programs of our choice. Radio has got many advantages. We can hear national as well as international news, classical music, filmy songs, drama, running commentary of different sports, interviews, and many more. There are separate programs for farmers and for ladies.
The programs related to agriculture give information about seeds, crops, seasonal crops, how to protect them from insects or diseases, etc. Radio also gives us information about social, political, and financial issues. Radio has reached the most remote part of our country. So it has become a very good medium of communication. The Government can broadcast programs related to important and sensitive issues through radio. It can be used to make people aware of sensitive issues like AIDS, family planning, road safety, etc.