This site, presented by the Henry Ford Museum and Greenfield Village, offers a peek into the life and inventions of Thomas Edison. Content is focused mainly on Edison's Menlo Park Laboratory and his invention of the first practical...

This site explores the various challenges Edison faced upon attempting to produce electric power. It contains a historical essay, a complete list of Edison's patents, information on the AC and DC currents, recordings produced by the...

American Experience offers a comprehensive look at George Eastman and his development of photography. Included are a timeline, biographies of important people in Eastman's personal and professional life, discussions in the history of...