Thomas Alva Edison
by National Portrait Gallery, Smithsonian Institution/science Photo Library
Title
Thomas Alva Edison
Artist
National Portrait Gallery, Smithsonian Institution/science Photo Library
Medium
Photograph - Photograph
Description
Thomas Alva Edison (1847-1931), US inventor. Edison is famous for inventing or improving devices such as the phonograph and the electric light bulb. He founded several laboratories and companies, and filed over 1000 patents. Other work included improvements to telegraphy, cameras, and motion picture cameras, as well as his DC (direct current) electrical distribution systems. In 1880, Edison founded the journal Science. He also discovered the Edison Effect, on which thermionic valves are based. Painting by artist Abraham Archibald Anderson (1846-1940).
Uploaded
May 25th, 2023
Embed
Share
Comments
There are no comments for Thomas Alva Edison. Click here to post the first comment.