Bridges

(best viewed at 800 x 600)

http://www.shambles.net

Bridges
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Bridge Tracker
http://www.msnbc.msn.com/id/21840954/
Bridge Tracker
This map shows the condition and inspection dates for more than 100,000 bridges in the U.S. that are crossed by at least 10,000 vehicles per day

Bridge Building : Area on Shambles
http://www.shambles.net/pages/learning/DandT_S/Y7bridge/
Bridge Building : Area on Shambles

Building a Bridge : A Mathematical Droodle
http://www.cut-the-knot.org/Curriculum/Geometry/BuildingBridge.shtml
Building a Bridge: What is this about?
A Mathematical Droodle
This one is a basic optimization problem. It's well known and serves as an easy illustration of the usefulness of the simplest of geometric transforms

Super Bridge (Interactive Activity)
http://www.pbs.org/wgbh/nova/bridge/build.html
Super Bridge (Interactive Activity)br> Arch bridge | Beam bridge | Suspension bridge | Cable-stayed bridge |

Pontifex
http://www.chroniclogic.com/index.htm?pontifex
Pontifex is the official sequel to a free ware game in which the player designs and tests bridges. Pontifex uses a complex physics engine which allows the construction of many different types of bridges.
Once the design is completed, the player can test the strength of the bridge by sending a train across it. Depending on the quality of the bridges' design, the train will either pass over it safely or plummet into the river below. The 3D engine lets the player view their bridge from any angle including a first-person train view.

Tacoma Narrows Bridge
http://www.nwrain.net/~newtsuit/recoveries/narrows/gg.htm
Tacoma Narrows Bridge
Throughout the early morning hours of Thursday, November 7, 1940, the center span had been undulating three to five feet in winds of 35 to 46 miles per hour. Alarmed by this constant motion, highway officials and state police closed the bridge at 10:00 A.M. Shortly thereafter the character of the motion dramatically changed from a rhythmic rising and falling to a two-wave twisting motion. The twisting motion grew stronger with each twist; span movement had gone from 5 foot to 28 foot undulations. This twisting motion caused the roadbed to tilt 45 degrees from horizontal one way and then 45 degrees from horizontal the other way.

Construct an Aqueduct
http://www.pbs.org/wgbh/nova/lostempires/roman/aqueduct.html
Construct an Aqueduct
Aqueducts are one of the wonders of the Roman Empire. These graceful structures are not only majestic, but are engineering marvels that survive to this day.
In "Construct an Aqueduct," you are hired as Chief Water Engineer by the Roman Emperor.
Your job: to build an aqueduct that will supply the Roman city of Aqueductis with clean water to private homes, public baths and glorious fountains. Succeed, and citizens of Aqueductis will drink clean water and bathe happily.
Fail, and there's no telling what your countrymen will do.

Bridge Building : 4 2 Explore
http://eduscapes.com/42explore/bridge.htm
This web project provides "four to explore" for each topic.
On each page you'll find definitions, activities, 4 good starting points, and many more links and resources for the thematic topic.
In some cases, we've listed more than four websites on a particular topic. For example, we might provide a few for younger readers and others for more advanced learners.
Each school, classroom, and teacher is unique. As such we didn't try to provide specific activities for particular grade levels. Instead we suggest that teachers explore each link, then design specific, developmentally appropriate activities such as discussion questions, small group activities, or webquests to fit the needs of their curriculum.
The links on this site are safe for children.
Bridge Building |

Visit a company that builds bridges ..
http://www.steadfastbridge.com/

Build and Test a Paper Bridge
http://tryscience.org/exp19570721_frames.html
Make a bridge out of a folded piece of paper and two blocks. Test your structure by stacking coins (and other things) on it. How much weight can your bridge support before it crashes?

Building Big
http://www.pbs.org/wgbh/buildingbig/bridge/index.html
How long can a bridge be? Why would a bridge make someone seasick? Find out when you check out these bridges.