The laboratory was in Menlo Park. The inventor was Thomas Edison. That is the same year the American Chemical Society was ...

KANSAS CITY, Mo. (KCTV) - December 24, 1877. Thomas Edison files a patent for the first phonograph capable of recording and playing sound. The groundbreaking product was a byproduct of Edison’s work ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. A model to accompany the application ...

Until Thomas Alva Edison tackled the problem of multiple telegraph messages, the most that could be sent over one wire at a time was two. Edison increased the number to four. Later, Western Union ...