June 23, 2013
June 23, 2013
June 26, 2013
23.665.1 - 23.665.9
How Close to Space Before Nobody Can Hear You Scream Stephanie Willoughby, Steven Zusack, Peter J. Schubert, IUPUI Results are presented from a balloon‐launched experiment to measure the effect of air pressure on sound transmission for various frequency ranges. Wireless transmitter/receivers mounted a fixed distance apart within a soundproofed, but not airproof, enclosure measure attenuation of human screams as a function of altitude. The experiment was designed to provide real‐time, qualitative data for the amusement of student observers, plus logged data from which the enclosed plots are derived. Aerostat services were provided by Spaceport Indiana with a target altitude of 85,000 feet. The experiment was designed, conducted, and analyzed in just two weeks by a newly‐formed student group.
Schubert, P. J., & Zusack, S. A. (2013, June), How Close to Space Before Nobody Can Hear You Scream Paper presented at 2013 ASEE Annual Conference & Exposition, Atlanta, Georgia. 10.18260/1-2--19679
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