(One ad read that the elder Edison “could not accomplish everything, and he left one room in the House of Science in which Thomas A ... In 1877, he used his phonograph machine to record ...

I remember the moment I got interested in music. I was 10 years old, sitting in a friend’s attic in our eastside Dayton ...

Chemical developments originating from the West Orange laboratory included plastics and waxes for disc and cylinder phonograph records, nickel-iron alkaline electric storage batteries, and ...