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Smart Dir : free sites directory. Science Technology Acoustics, Ultrasound and Vibration Resources. Directory of Science Technology Acoustics, Ultrasound and Vibration Resources.

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Recreation: Audio: Do-It-Yourself: Loudspeakers (22)

» Acoustical Porous Material Recipes - Glossary of terms, models and research methods.

http://www.kettering.edu/~drussell/demos.html

» Acoustics and Vibration Animations - Contains animations which visualize certain concepts concerning acoustics and vibration.

http://www.silcom.com/~aludwig/contents.htm

» Art Ludwig's Sound Page - Contains large amount of information about physical and room acoustics, design of loudspeakers.

» C37 Acoustics Dieter Ennemoser - Violinmaker and aoustic researcher D.Ennemoser's C37-theory of natural sound, including applications on violins and loudpeakers.

http://www.borderlands.com/archives/arch/gavreaus.htm

» Gavreau's Infrasound Weapons - Dr. Gavreau and his staff made a observation which, not only interrupted their work, but became their major research theme. They periodically experienced a disconcerting nausea which flooded the research facility. Low frequency sound (7 Hz) could resonate and cause nausea.

http://halfdome.arc.nasa.gov/research/IRAP-intro.html

» In-Flight Rotorcraft Acoustics Program (IRAP) - NASA's aeronautics research will reduce noise to make helicopters and tiltrotors more acceptable to the public. The objective of IRAP is to acquire rotorcraft noise data in flight for comparison to wind tunnel data.

http://www.nrc.ca/irc/leak/leakdetect.html#PHOTOS

» Leak detection methods for plastic water distribution pipes. - Institute for Research in Construction

» Modal Analysis and Structural Fatigue - Solutions using computer modelling to determine the vibration modes and impact on a building, equipment or mechanical component when exposed to a vibration source.

http://www.soft4structures.com/products.html

» Online structural engineering software - Theoretical models for plates or beams bending; shock absorber dimensioning.

» Prediction of earthquakes with AE/MS? Why not? - H.L. Dunegan, May, 1996

» PureSpeakers - Discussions of loudspeaker plans and designs. Sealed, isobaric, ported, mtm, speaker, esotar, tweeter, woofer, midrange, speaker building

» Sara - wave creation, propagation, reception and understanding are at the core of our business. Sound at frequencies below that which can be heard to light at frequencies above that which can be seen barely begin to span the range of experience and understanding that unify our four technology areas.

» Sonic Architecture (TM) - Bill and Mary Buchen.

http://www.amasci.com/freenrg/audhole.html

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