Home > Term: microphone
microphone
An instrument invented in 1878 by Professor Hughes, and consisting of charcoal tempered in mercury, which intensifies and renders audible the faintest possible sound.
- Szófaj: noun
- Ipar/Tárgykör: Nyelv
- Kategória: Encyclopedias
- Organization: Project Gutenberg
0
Szerzőb
- JohannesDD
-
(V.I.P) 14638 points - 100% positive feedback
(Sydney, Australia)
