- Phonograph (Wikipedia)
A phonograph, later called a gramophone (as a trademark since 1887, as a generic name in the UK since 1910), and since the 1940s a record player, or more recently a turntable, is a device for the mechanical and analogue reproduction of recorded sound. The sound vibration waveforms are recorded as corresponding physical deviations of a helical or spiral groove engraved, etched, incised, or impressed into the surface of a rotating cylinder or disc, called a “record”. To recreate the sound, the surface is similarly rotated while a playback stylus (or “needle”) traces the groove and is therefore vibrated by it, faintly reproducing the recorded sound. In early acoustic phonographs, the stylus vibrated a diaphragm that produced sound waves coupled to the open air through a flaring horn, or directly to the listener’s ears through stethoscope-type earphones.
- Roger Zelazny (Wikipedia)
Roger Joseph Zelazny (May 13, 1937 – June 14, 1995) was an American fantasy and science fiction writer known for his short stories and novels, best known for The Chronicles of Amber. He won the Nebula Award three times (out of 14 nominations) and the Hugo Award six times (also out of 14 nominations), including two Hugos for novels: the serialized novel …And Call Me Conrad (1965), subsequently published under the title This Immortal (1966), and the novel Lord of Light (1967).