Teachers Paradise School Supplies Teacher Resources Free Encyclopedia
Teachers Paradise FREE Teaching Resources
Home Arts Crafts Audio Visual Equipment Office Supplies Teacher Resources
Main Page | Edit this page

Charles Cros

Charles Cros (October 1 1842 - August 9, 1888) was a French poet and inventor. He was born in Fabrezan, Aude, France.

Cros was a well regarded poet and humorous writer. He developed various improved methods of photography including an early color photo process. He also invented improvements in telegraph technology.

He is perhaps most famous as the man who almost, but not quite, invented the phonograph. In April 1877 he submitted a paper to the Academy of Sciences in Paris suggesting that the vibrations of sound waves could be traced with a pen attached to a vibrating membrane, then the waves could be engraved into metal, and then a stylus attached to a membrane could be run over the engraved wave to reproduce the sound. Before Cros had a chance to follow up on this idea or attempt to construct a working model, Thomas Alva Edison introduced his first working phonograph in the USA. Edison and Cros apparently did not know of each other's work in advance.

Charles Cros died in Paris.




Pay for Educational Supplies & Teaching Supplies with Visa, Master Card, American Express, Discover or Paypal.
TeachersParadise.com HOME | Safe Shopping Guarantee | Help Desk
All trademarks & brands are the property of their respective owners.
Legal Notice 2000-2008 TeachersParadise.com, Inc. All Rights Reserved