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would never had been accepted had the authors been experimentalists who actually measured the Q.
This article has attempted to show that the textbooks used to introduce many students to vibrating systems and sound propagation all have been tied to the insights of Lord Rayleigh. It also has shown that the textbooks from Lamb’s Dynamical Theory of Sound (1925) through Kin- sler and Frey’s Fundamentals of Acoustics (1962) focused on Rayleigh’s theoretical insights but knowingly neglected treating the approximation methods he introduced to applied mechanics and his experimental acumen. Acous- tics was taught differently at UCLA. There, much attention was paid to the greater scope of Rayleigh’s contributions, along with the introduction of more modern principles like the fluctuation-dissipation theorem, irreversibility and transport phenomena, linear-response theory (e.g., Kramers-Kronig relationships), viscoelasticity, and adia- batic invariance. With the rise in the use of computers to solve problems in science and engineering, I have argued that those fundamental principles and approximation techniques provide a necessary check on computers’ abili- ties “to provide wrong answers to 7-digit precision.”
Acknowledgments
Most of the historical content of this paper that describes Rayleigh’s work was taken from R. B. Lindsay’s “Historical Introduction” to the 1945 Dover edition of The Theory of Sound. The perspective I developed in my textbook was nurtured by my experience as a graduate student at UCLA under the supervision of Isadore Rudnick, Seth Putterman, and Martin Greenspan and by my long-term collabora- tion with Gregory Swift, starting from our time together in the physics department at the University of California, Berkeley in 1979. I am grateful to the support of the Penn State College of Engineering, which provided a year of sabbatical leave to get me started on my textbook project, and to the Paul S. Veneklasen Research Foundation, which helped support the production of my first edition and then provided a substantial subsidy to Springer to release the second edition as the first “open access” acoustics textbook.
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