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ERIC Number: EJ819008
Record Type: Journal
Publication Date: 2008-Sep
Pages: 7
Abstractor: As Provided
Reference Count: 9
ISSN: ISSN-0143-0807
Physics between a Fly's Ears
Denny, Mark
European Journal of Physics, v29 n5 p1051-1057 Sep 2008
A novel method of localizing the direction of a source of sound has evolved in the auditory system of certain small parasitic flies. A mechanical model of this design has been shown to describe the system well. Here, a simplified version of this mechanical model is presented which demonstrates the key feature: direction estimates of high accuracy are obtained via a mechanism that is much smaller than the wavelengths of sound that it detects. The derivation of this unusual result, and the explanation of why it is unusual, is presented at a level suitable for an undergraduate physics programme. (Contains 3 figures ans 1 footnote.)
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Publication Type: Journal Articles; Reports - Descriptive
Education Level: Higher Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A