One of the remarkable inventions of modern science is certainly radio. Radio is a kind of wireless telegraphy on which, instead of sound, we hear words. With the help of a radio instrument we can hear news, music, speeches etc. from a distance. The credit for inventing this wonderful work goes to the Italian scientist, Marconi. He invented it in 1901. Radio is a useful medium of entertainment. We can listen to songs, music, plays, news, weather reports etc. on it. Radio programmes are relayed from radio stations.
Radio has an educative value. We can learn a lot from the views of eminent persons. Also educational speeches are relayed from time to time which are very useful for the audience. The weather forecasts are also very important for sailors, pilots and fishermen. They can be cautioned against any incoming bad weather. Even a ship in distress can send out messages through a radio to other ships. The movements of aeroplanes are completely directed by radio.
Though radio seems to be the younger brother of the television, yet it has its own importance, as it is being used for intimating traffic congestions on the city roads, so it has become a handy instrument to decide which way to drive.
Radio remains an important source of entertainment in remote villages.
