In:
The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 124, No. 4_Supplement ( 2008-10-01), p. 2569-2569
Kurzfassung:
One of the major thrusts of ASA Vision 2010 is to develop education outreach for a spectrum of learners from kindergarten students to senior citizens. Along these lines we explore a simple speed of sound measurement that can be accomplished by this broad range of learners. Understanding slow speed of sound compared to the speed of light allows the learner to comprehend the lack of temporal/optical correlation between sound and position of airplanes as they move across the sky. Other examples include the late arrival of sounds from aerial salutes during firework displays and sounds of lightning during storms. Synchronizing the acoustic echo of a sound pulse from an outdoor wall with the pulsed source for several duty cycles allows sound speed measurements. Analysis of the time of arrival with distance is presented for various wall sizes and air temperatures. The successes of the learning exercise and results of the measurements when accomplished by the K-gray audience will be presented (see, for example, http://arts.ucsc.edu/EMS/Music/tech_background/TE-01/soundSpeed.html).
Materialart:
Online-Ressource
ISSN:
0001-4966
,
1520-8524
Sprache:
Englisch
Verlag:
Acoustical Society of America (ASA)
Publikationsdatum:
2008
ZDB Id:
1461063-2
