Page 4 - 2016Spring

Acoustics
A publication of the Acoustical Society of America
TABLE OF CONTENTS
6 From the Editor
7 From the President and the Executive Director
8 From the Web Office Manager
Featured Articles
12 The Invention and Evolution of the Piano - Nicholas Giordano
The piano was invented 300 years ago—and the instrument has changed considerably since then.
20 The Evolution of Mammalian Sound Localization
- Henry E. Heffner and Rickye S. Heffner
Mammals evolved better high-frequency hearing than non-mammals, and they use it for local- izing sound. Does this mean they localize sound better than other vertebrates?
28 Preventing Occupational Hearing Loss— Time for a Paradigm Shift
- William J. Murphy
Proactive hearing loss prevention programs that reduce workplace noise are shifting the focus from documentation of an injury to the preven- tion of occupational hearing loss.
36 Walter H. Munk: Seventy-Five Years of Exploring the Seas
- Robert C. Spindel and Peter F. Worcester
During a career spanning 75 years, Walter Munk has made seminal contributions to acoustical oceanography, underwater acoustics, physical oceanography, and geophysics.
2 | Acoustics Today | Spring 2016
Volume 12 | Issue 1 | Spring 2016
Today
43 Infrasound from Tornados: Theory, Measurement, and Prospects for Their Use in Early Warning Systems
- Carrick Talmadge and Roger Waxler
Tornados may produce a low-frequency signa- ture that could be used in automatic warning systems.
Departments
53 Book Announcement from ASA Press: ASAPress/Springer: Treatise on Acoustics
- E.F.F. Chladni (Translated by Robert T. Beyer)
54 Technical Committee Report:
Physical Acoustics - Joseph (Josh) Gladden
56 News from the Acoustical Society Foundation - Carl J. Rosenberg
5 7 - 5 8 Obituaries:
57 - Leif Bjørnø (1937–2015)
58 - Karl Uno Ingard (1921-2014)
60 Classifieds, Business Directory and Advertisers Index
About The Cover
The cover photograph captures the top view of of a Steinway model M piano owned by Nicholas Giordano, author of the article The Invention and Evolution of the Piano, found on pgs. 12-19 of this issue (see Fig- ure 2). The modern grand piano has nearly twice the range (88 notes covering 71⁄3 oc- taves), with strings held at tensions of more than 600 N, and a massive iron plate to al- low the case to withstand the much greater force from the strings. From Giordano (2010) with permission from Oxford Uni- versity Press. (Photograph courtesy of Lizz Giordano.)