Thomas Edison and William Coolidge

General Electric Company1922/1922

Museum of Innovation & Science

Museum of Innovation & Science
Schenectady, United States

Thomas Edison listens to GE inventor William Coolidge during Edison's visit to Schenectady on October 18, 1922. Coolidge is likely telling Edison about his ductile tungsten swaging machine. Coolidge discovered the process from making tungsten ductile, or flexible. Coolidge's discovery led to the use of tungsten as a lamp filament, replacing the carbon filament used by Edison.


  • Title: Thomas Edison and William Coolidge
  • Creator: General Electric Company
  • Date Created: 1922/1922
  • Location: Schenectady, New York
  • Physical Dimensions: 8 x 10
  • Original Language: English
  • Subject Keywords: Thomas Edison, William Coolidge, Inventors, Research
  • Type: Photograph
  • Publisher: General Electric Company
  • Rights: This digital image may be used for educational uses. Please cite as miSci- Museum of Innovation & Science. Prior written permission is required for any other use of the images from miSci.

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