#25 28/02/14

     For 60 years Thomas Alva Edison was the world's leading inventor. Few people realized how hard Edison worked, often 20 hours a day, and that most of his inventions were the result of hundreds of experiment. He patented over a thousands inventions that changed our way of living, including the mimeograph machine, wax wrapping paper, and improvements of the telegraph and telephone. He designed the central power station that became the model for the first public electric plant in New York City, providing electric power for thousands of homes and businesses. Edison was one of the earliest inventors of the motion picture machines. He also perfected the electric motor, which made streetcars and electric trains possible