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Category Scope 71 Acoustics Includes sound generation, transmission, and attenuation. For noise pollution see 45 Environment Pollution. For aircraft noise see also 02 Aerodynamics; and 07 Aircraft Propulsion and Power. Definition Acoustics – The study of sound, including its production, transmission, and effects. NASA Thesaurus, Washington, DC: National Aeronautics and Space Administration. Dictionary of Technical Terms for Aerospace Use. Wm. H. Allen, ed., 1965. NASA SP-7. NASA Interest Exhaustive Interest : Acoustic theory, noise generation, sound attenuation, and related phenomena as they apply to aerospace equipment and vehicles and their operating environment. For specific applications see 02 Aerodynamics; 05 Aircraft Design, Testing, and Performance; 07 Aircraft Propulsion and Power; 15 Launch Vehicles and Launch Operations; 18 Spacecraft Design, Testing, and Performance; and 20 Spacecraft Propulsion and Power. Selective Interest : Noise generation, sound attenuation, and other acoustic phenomena related to other means of transportation, manufacturing, and construction with potential aerospace applications. Negative Interest : Noise generation, sound attenuation, and acoustic phenomena with no potential aerospace application. | Input Subjects of Specific Interest
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