Thomas Alva Edison inventions list:
1. The Phonograph: Thomas Edison’s first invention was the tin foil phonograph. While working to improve the efficiency of a telegraph transmitter, he noticed that the tape of the machine gave off a noise that resembled spoken words when played at a high speed. This led him to wonder if he could record a telephone message. In 1878, Thomas Edison established the Edison Speaking Phonograph Company to sell the new machine.
2. Light Bulb: Thomas Alva Edison’s greatest challenge was the development of a practical incandescent Electric Light Bulb. After a year of research, he conducts his first successful experiments with the light bulb in October 1879 using a carbon filament. It would burn in a vacuum in a glass bulb for 40 hours.
3. Motion Pictures: In the late 1880s, Edison began working on motion pictures. A member of his experimental staff, William Kennedy, Laurie Dickson played a key role in the development of the Kinetograph (a motion picture camera). In 1893, Edison demonstrates his system for making and showing motion pictures. In less than a decade, motion pictures become a popular and successful industry.