Thomas Alva Edison is famous all over the world for his invention of the gramophone and the electric blub. He was born 11th february, 1847 at Milan, Ohio, in the United States of America.His teacher did not think much of him. But his mother knew that he was intelligent and always ready to experiment. At the age of eight, he had set up his own laboratory and started experiments. Later he learnt telegraphy. He started working as a telegraphist. He lost many jobs. In fact, he spent a lot of time experimenting in order to find out new things. But his employers thought that he was wasting his time. Only one of his employers believed that he really had new ideas. He helped Edison in every way. Soon Edison invited something very useful. In those days only one message could be sent along a write. Edison worked hard. He succeeded in making it possible to send more than one message at the same time.
Edison gave up his job. Now he spent all his time in the laboratory, experimenting and inventing. In 1869,he went to new York. He improved a machine for sending massage. He got 40,000 dollars for this invention. He had now enough money. He started a factory and a laboratory. He employed a number of assistants. He then invented his first talking machine. Edison's most important and useful invention was the electric blub. Edison worked hard all in life. He improved telegraphy, Bell's telephone, and the Remington typewriter. He invented the electric fan. In 1913, he produced the first 'talkie' Or talking picture. He died in 1931. He was really a wonderful inventor.