When Thomas Edison invented the phonograph, he gave the world its first device that could both record and replay sound. A vibrating diaphragm pressed a stylus into soft wax, carving microscopic ...

If you think of records as platters, you are of a certain age. If you don’t remember records at all, you are even younger. But there was a time when audio records were not flat — they were drums, ...

Say what you will about [Thomas Edison], but it’s hard to deny the genius of his self-proclaimed personal favorite invention: the phonograph. Capturing sound as physical patterns on a malleable medium ...

Rumors of new, improved methods of phonograph recording (on wire, film, etc.) have filled the wartime air. Last week one of the biggest U.S. recording companies, RCA Victor, said that, so far as its ...