How do you build a bridge or a tunnel?
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This site looks interesting.\n\nhttp://abcdpittsburgh.org/kids/kids.htm\nhttp://www.jhu.edu/virtlab/bridge/truss.htm\nhttp://42explore.com/bridge.htm
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in riddle 1) go through tunnel two...the lions are ON the tunnel. you should be able to walk right through!\n2). he is building a fence!
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Try the ASCE research library it has some good articles on civil engineering.\nYou will have many options to choose for example you can choose bridges
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so how did you just happen to find this, "tunnel?" first things first
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Since this is a school project, your teacher probably wants to you to learn more than just how to build one.  \n\nLearn to use the library.  Learn to use internet search engines.  Learn to spell what you want to build.  Learn to be self reliant.
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the needed papers/license to build something like that.\n\nThe construction should be checked also before building (strong enough etc)
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use trusses. basically triangles. if u wanna do it easily, use 45 degree angles. to make it more stable use 30 and 60 degree angles. so basically make each side first and then to connect between them, i have no clue but dont do it straight across. u have to connect the top of the left to the bottom of the right. o rsomethin
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This link for a PDF File in Rapid Share website, it a book called "Bridges Design Manaual"\n\nI hope it will help you.\n\nhttp://rapidshare.de/files/37074217/bridgedesignmanual.rar
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simple chk out:\n\nhttp://www.cplusplus.com/doc/tutorial/structures.html
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if u r connected to network properly then no need for a bridge. just try out to ping the network frist. may be ur system only showing signals but not connected yet to network. it is type of security issue!!!chk it out frist\n\nif u able to connect to network then just chk ur gateway and dns entry and chk for firewall and proxy settings also if u not getting any response for internet.
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1) The towers are built.\n\n2) The main suspension cables are draped across the towers.\n\n3) Temporary work platforms are hung from the main suspension cables so that construction workers can work.\n\n4) The main deck is built from the work platforms.
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creating a physical model of something (a project).\nex: mount rushmore\n\n...theres alot of details that you need to include when carving it.
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how much depth you have to work with. Will things like sewers, TV cable, fiber optics, electrical lines, gas lines be in the way? Also, what is the geology of the ground you're going to tunnel through.
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Take a cube and put handles on the top and bottom surfaces...\n\nFirst push on it from the top and the bottom - the block  is in compression. Next, pull on the top and the bottom - the block is in tension. Finally, push the top to the left and the bottom to the right (don't rotate the cube - keep the forces parallel to the top and bottom surfaces) - that is shear.
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Many physics priciples apply.\nYou got your tensil strength, this is your pulling streingth <- ->\nthen, your shear strenght _> <-(left one is lower)like holding a tooth pick between your thumb and index finger and pushing on the middle with your other hand\nand compretion strength -> <- \nthese factors determin wood's ability to withstand load. normaly, bridge trusses use triangles because it focuses on tensile and compretion strenght(whigh wood does well with)\nenginering sites are the best place to look up on these things
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1. get a toy one and put it in\n\n2. get a toy one and put it in\n\n3. the extinct ones\n\n4. use the bridge
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step one: put suction cups on the bottom of your shoes\nstep two: walk up the wall and suction your way along the ceiling upside down\nMission Impossible Style\n\nOR\n\nPut mirrors a foot or two away from the infared light to reflect it back to the sensor and walk on the other side of the mirror and wall safely \n\nOR\n\nIf the sensors are low to the ground or all in a straight line and you have access to both ends of the hallway\nplace a supportive structure at both ends and run a ladder from one end to the other and shimmy or crawl across carefully to safety...\n\nOR\n\ndig a tunnel under the building\n\nOR\n\nrun quickly as it taked like an hour for the security company to contact the client and and the alert the police and respond - movies lie- steal a car, break in , be quick about it, grab the loot, and drive away slowly, ditch the car and dont truct anybody!