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.
- Del af tale: noun
- Branche/domæne: Language
- Category: Encyclopedias
- Organization: Project Gutenberg
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Ophavsmand
- JohannesDD
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(Sydney, Australia)
