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Auxeto [auxetophone]locked

  • Laurence Libin


Pneumatic-mechanical device for amplifying sound outdoors and in large indoor spaces. It was patented in England in 1898 and 1901 by the aviation engineer and acoustician Horace Short (1872–1917) and developed (initially as a hobby) from 1903 by the mechanical engineer and inventor Sir Charles Algernon Parsons (...

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