invented by THOMAS EDISON: the wizard of Menlo Park

Thomas Alva Edison

important events in the life of EDISON

  • Thomas Alva Edison was born to middle class parents on February 11, 1847 in Milan, Ohio.

  • At the age of 12, Edison sold snacks and newspaper on the local railroad.
  • Edison invented also invented the electric light bulb and the movie projector and camera.
  • Edison died at 9:00 pm on October 18th,1931 in New Jersey. He was 84 years old. Shortly before he left, he awoke from a coma. He turned and whispered quietly to his wife (who was watching his health all night) "It is very beautiful over there..."
  • On the day he was laid to rest, corporations and homes across America turned out their electric light bulbs in honor of his inventions that revolutionized the world, and stay with us stll.

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The phonograph was the first device that had the ability to record and play back sounds.
It worked very much like record players, in fact, the phonograph was the basis for record players.

A person would speak into the recording horn on one end, the sound created vibrations, which traveled down the horn. The vibrations hit a diaphram at the end, connected to this was a needle, the needle scratched the vibrations onto a wax cylinder.

When cranked later, the needle on the other end would follow the grooves and vibrate the diaphram it was connected to. These vibrations would recreate the sound through another horn on the other end.

Trade phonographs took out the recording horn so people could buy cylinders by musicians who were popular at the time.