Mon, 20 December 2010
Bridges
Spanning the Globe
Common types of bridges include beam bridges, arch bridges, suspension bridges, cantilever bridges, truss bridges, and cable-stayed bridges.
The Inca civilization
The Inca civilization in South America made use of rope bridges in the Andes Mountains before the Europeans colonized in the 1500’s. These rope bridges spanned canyons and gorges, allowing easy access to otherwise difficult to reach areas. While they were strong and reliable, repairing the bridges was a dangerous job that often ended in death. The Oldest Standing Bridge
The Zhaozhou Bridge is the oldest standing bridge in China and the world’s oldest stone segmental arch bridge. Built in 605 AD, it is still standing strong today, over 1400 years later.
The Industrial Revolution
During the Industrial Revolution of the 19th century wrought iron was introduced into the design of large bridges. Wrought iron was later replaced by steel because it has a higher tensile strength. Go Daddy.com picked us for a Go Daddy campaign. If you go their site and you buy a domain name use the Promo Codes below.
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What Do You Know, Joe?
In 1779, the world's first iron bridge, spanning the Severn River, was completed at what location?
A. Maryland
B. England
C. Ontario
D. Minnesota
Last Posts Answer: A. One Sixth
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Mon, 20 December 2010
While the London Bridge may be awesome and the Golden Gate even more so, here’s one that beats them both to a pulp in coolness. This is a seriously cool bridge, located in Leeuwarden, Netherlands (where else?) You’ve got to love how the roadway has a cutout for the arm to drop into.. awesomely clever! One thing I’d like to know is, since there are so many Dutchmen in northwest Iowa, why we don’t have a bridge like this near Sioux Falls. Granted, they’re mostly a generation or two removed from the Old Country, and we don’t have much for canals or boat traffic… But still, what’s the hold up? Johnee Bee from Mostly Trivial Podcast, iPhone app and Android App found this info here:
http://www.newlaunches.com http://gadgetopia.com/post/6702 Category:general
-- posted at: 1:22 PM |
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