Although Thomas Edison's had been deaf since childhood, he never let his disability hamper his creativity. At the age of 21 he began inventing on a large scale and he didn't stop until the day he died. Edison's most well known inventions included the phonograph and the electric light bulb, voting machine and the first car ignition system. During his lifetime, Edison took out an amazing 1,093 patents on his work. This biography details Thomas Edison's amazing life and mind.