SAUR URJA KI KAHANI

Arvind Gupta, an IITian has written many interactive science books for children. He has won many awards and prizes in this field; He tries to make science easy for children to understand. In this book he has traced the history of energy since the beginning of civilization. The first source of energy that humans used was wood. After wood they used coal and then oil. With the help of oil electricity began to be generated. Scientists have for long been looking for other sources of energy like wind and sun. These sources are best because they are going to last for a long time and are pollution free.