sound barrier
The Columbia Encyclopedia, Sixth Edition | Date: 2008
sound barrier see aerodynamics .
Author not available, SOUND BARRIER.,
The Columbia Encyclopedia, Sixth Edition 2008
The Columbia Encyclopedia, Sixth Edition. Copyright 2008 Columbia University Press
Related newspaper, magazine, and journal articles from HighBeam Research
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LEXINGTON SOUND AND FURY OVER A BARRIER TOWN WINS A WALL; OTHERS CRY FOR ONE
The Boston Globe; 8/13/2006; Christine McConville and James Vaznis, Globe Staff; 783 words
; ... by the state Highway Department of a sound barrier along routes 3 and 128 in Lexington ... battled the Highway Department for sound barriers as traffic clogs major highways and ... six years of everyone else getting sound barriers except for North Chelmsford," said ...
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A comparative study of wood highway sound barriers. (Management).
Forest Products Journal; 3/1/2002; Grgurevich, Stefan Boothby, Thomas Manbeck, Harvey Burroughs, Courtney Cegelka, Stephen Bernecker, Craig Ritter, Michael A.; 5113 words
; ... Prototype designs for wood highway sound barriers meeting the multiple criteria of structural ... developed. Existing installations of wood sound barriers were reviewed and measurements conducted ... approach to the design of several types of sound barriers. A prototype barrier ...
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ROUTE 93 SOUND BARRIERS MOVE UP ON LIST
The Boston Globe; 4/16/2006; JAMES VAZNIS; 716 words
; ... Woburn are inching closer to having sound barriers built. MassHighway has been measuring ... determine the feasibility of building a sound barrier there. Further up Interstate 93, noise ... studies have confirmed the feasibility of sound barriers in Woburn between Montvale Avenue and ...
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 "Chicago Tribune (Chicago, IL)")
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Some Chicago-Area Towns Complain about How Highway Sound Barriers Are Financed.
Chicago Tribune (Chicago, IL); 6/17/2004; 1077 words
; ... are not considered sound walls, but visual barriers that were sponsored under Illinois FIRST by ... letters to public officials for years seeking a sound barrier along the Tri-State Tollway. When she moved ... Toll Highway Authority officials say their sound wall policy--unlike the state ...
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Raising a ruckus for sound barriers
The Boston Globe; 10/29/2006; James Vaznis; 812 words
; ... STARTS & STOPS The clamor for sound barriers is getting louder. Woburn city ... joining forces with Burlington to get sound barriers built along Route 128. Woburn also will advocate for sound barriers along portions of Interstate 93 ...
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Residents irked by delay in putting up sound barrier
New Straits Times; 11/18/2002; 407 words
; Residents irked by delay in putting up sound barrier Edition: 2* Section: City News WHILE residents of Jalan 1 to Jalan 7 of Taman Bukit Maluri in Kepong, Selangor are happy with the much-awaited construction of a sound barrier along Jalan Kepong-Sungai Buloh, they feel the construction is ...
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 "The Record (Bergen County, NJ)")
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ROUTE 80 SOUND BARRIER STUDY PROMISED
The Record (Bergen County, NJ); 7/26/1995; MICHAEL CASEY, Staff Writer; 596 words
; ... Bergen County, NJ) 07-26-1995 ROUTE 80 SOUND BARRIER STUDY PROMISED By MICHAEL CASEY, Staff Writer Date: 07-26-1995, Wednesday Section: NEWS Edition: 2 Star P Standing in West Paterson ... Wilson said the feasibility of installing sound barriers along Route 80 between Route 23 and ...
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Falls sound barrier proposal returns
The Milwaukee Journal Sentinel; 11/6/2000; JACQUELINE SEIBEL; 565 words
; Falls sound barrier proposal returns Residents say noise ... Falls residents who want a $713,000 sound barrier constructed between their homes and ... have been trying since 1990 to get the barrier constructed. Neighbors submitted a ...
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Survey shows support for sound barrier on Falls highway
The Milwaukee Journal Sentinel; 5/11/2001; JACQUELINE SEIBEL; 615 words
; Survey shows support for sound barrier on Falls highway Some worry it would ... approves the installation of a noise barrier, the DOT seeks bids, and the barrier could be constructed of any one of three ... respondents who favor building a noise barrier live in homes they own along the ...
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MEEHAN CALLS FOR RTE. 3 SOUND BARRIER
The Boston Globe; 11/6/2005; JAMES VAZNIS; 981 words
; ... widening project be used to erect a sound barrier along the highway in Chelmsford ... experienced development disorders. A sound barrier, the congressman wrote, could cut noise ... forbidden from using any surplus money on sound barriers. The surplus can only be used to pay ...
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Related entries from encyclopedias, dictionaries, and thesauruses
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sound barrier
Britannica Concise Encyclopedia
... 650 miles (1,050 km) per hour. The sound barrier was formerly an obstacle to supersonic ... little difficulty in passing through the sound barrier, but the effect on those designed for ... dangerous. The first pilot to break the sound barrier was Chuck Yeager (1947), in the ...
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sound barrier
World Encyclopedia
sound barrier Name for the cause of an aircraft's difficulties ... accelerating to a speed faster than that of sound. When approaching the speed of sound, an aircraft experiences a sudden increase ... lift. These are caused by the build-up of sound waves to form shock waves at the front ...
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sound barrier
The Oxford Pocket Dictionary of Current English
sound bar·ri·er • n. ( the sound barrier ) the increased drag, reduced controllability, and other effects that occur when an aircraft approaches the speed of sound, formerly regarded as an obstacle to supersonic flight.
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sonic barrier
The Oxford Pocket Dictionary of Current English
son·ic bar·ri·er • n. another term for sound barrier .
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Sound
Mathematics
... waves that are moving through the air, but the air is not moving across the room. Speed of Sound Waves. Sound travels through solids, liquids, and gases at different speeds. The speed depends on the springiness of the medium. Steel, for example, is much springier than air, so sound travels through steel ...
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