ISSN:
1476-4687
Source:
Nature Archives 1869 - 2009
Topics:
Biology
,
Chemistry and Pharmacology
,
Medicine
,
Natural Sciences in General
,
Physics
Notes:
[Auszug] To many, efforts to increase the efficiency with which sound can be amplified must seem a thoroughly antisocial activity. But this, of course, is audible sound where there is a well-tried route using a microphone to convert sound into electrical signals which are amplified and ...
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1038/367687a0
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