Radio is one of the most wonderful gifts of science. Radio sets are very popular. They can be found in every home. It has made us feel the world small. It helps us in sending news and message without wires. We can enjoy news, music, songs etc. from different part of the world through it sitting in our houses. We also get lessons on radio at school. The programmes are broadcast all the twenty four hours from radio. Film songs and children programmes are of much interest. Radio is also a powerful means of teaching. In short the radio is of great use and interest to all of us. Now we have pocket radios which are very convenient to carry.