Bridge
hideA bridge is a structure built to span a valley, road, railroad track, river, body of water, or any other physical obstacle, for the purpose of providing passage over the obstacle. Designs of bridges will vary depending on the function of the bridge and the nature of the terrain where the bridge is to be constructed.
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News tagged with bridge
China Building 30-Mile Bridge Connecting Hong Kong to Guangdong Province
Dec 18, 2009 |
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China Daily reports the commencement of the 30-mile Hong Kong-Zhuhai-Macao Bridge, the longest sea bridge under construction world-wide. The six-lane expressway will cut travel time from three-hours to around ...
Modern tests demonstrate soundness of old iron bridge
Dec 21, 2009 |
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An unusual bowstring truss iron bridge that carried traffic across Roaring Run in Bedford County, Va. for almost 100 years is now a picturesque footbridge at the I-81 Ironto, Va. rest stop. Built in 1878, ...
Tiny Music Player Made from Wire Bridge (w/ Video)
Nov 04, 2009 |
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(PhysOrg.com) -- In 2008, scientists built a loudspeaker made of carbon nanotubes that produced sound and music based on the thermoacoustic effect. Now, a different team of scientists has built a loudspeaker ...
Tropical birds waited for land crossing between North and South America: study
Dec 09, 2009 |
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Despite their ability to fly, tropical birds waited until the formation of the land bridge between North and South America to move northward, according to a University of British Columbia study published this ...
Engineering professor creates mobile lab for testing bridges
Dec 02, 2009 |
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(PhysOrg.com) -- Civil engineering students at the University of Rhode Island will soon take to the roadways to apply what they have learned in the classroom in real-world analyses of bridges, buildings and ...
New research brings 'invisible' into view (w/ Video)
Oct 06, 2009 |
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(PhysOrg.com) -- A group of researchers at Missouri University of Science and Technology has developed a handheld camera that uses microwave signals to non-destructively peek inside materials and structures ...
Ice Bridge Supporting Wilkins Ice Shelf Collapses
Space & Earth / Earth Sciences
Apr 08, 2009 |
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(PhysOrg.com) -- An ice bridge connecting the Wilkins Ice Shelf on the Antarctic Peninsula to Charcot Island has disintegrated. The event continues a series of breakups that began in March 2008 on the ice ...
Revolutionary sensor system protects ports, bridges and distribution centres
Apr 27, 2009 |
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(PhysOrg.com) -- Özlem Durmaz Incel, researcher at the University of Twente, the Netherlands, has developed a spectacular new method that enables wireless sensor networks to function up to ten times more efficiently. Networks ...
Engineers use composite materials to extend life of existing bridges
Apr 03, 2009 |
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A team of University of Kansas engineers is testing a new class of devices that could double the life of America's existing bridges using composite materials.
Why did the London Millennium Bridge 'wobble'?
Dec 17, 2008 |
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(PhysOrg.com) -- On its opening day, the London Millennium Bridge experienced unexpected swaying due to the large number of people crossing it. A new study finally explains the Millennium Bridge 'wobble' ...
Bridge opens China's 'last virgin island' for development
Nov 01, 2009 |
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China on Saturday opens a new bridge over the Yangtze that will pave the way for rapid development of the country's "last virgin island," Chongming -- now just an hour's drive from booming Shanghai.
First White Spaces Network Brings Broadband Internet to Rural America
Oct 21, 2009 |
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For the first time in the U.S., unused TV broadcast channels freed up by the transition to digital TV are being used to wirelessly deliver high-speed Internet connectivity to business, education and community users. These ...
U of Minnesota's independent study of the I-35W bridge collapse results parallel NTSB report
Nov 20, 2008 |
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Preliminary results of the University of Minnesota's independent academic study of the I-35W bridge collapse suggest that lack of robustness in the bridge's original design, additional load from bridge improvements over the ...
Hubble celebrates 19th anniversary with fountain of youth
Apr 21, 2009 |
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Over the past 19 years Hubble has taken dozens of exotic pictures of galaxies going "bump in the night" as they collide with each other and have a variety of close encounters of the galactic kind. Just when ...
Engineers research effects of heat expansion on economically efficient bridge design (w/ Video)
Jun 26, 2009 |
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Kansas State University researchers are studying the effects of integral bridge expansion resulting from heat to make these types of bridges a more viable alternative.
