Whats a bridge for carrying a railroad or highway traffic? And a geometric shape used for support of bridges?
969909
Triangular truss bridge.
795507
Garndiffaith viaduct, constructed by John Gardner 1878\n\nCheck out the link below.\nIt was the best i could find .\n\nHave a nice day ...\n☺☺☺
81694
Around here it is used as land fill for road construction, particularly where a road is constructed  or widened over a river just before a bridge abutment.\n\nWe build what is called a "causeway" (like over Lake Pontchatrain) which is rapple old highway, buildings anything of substancial strength allowed to settle into the mud and distribute the weight of the road over a large  triangular area.  The structure must float as we do not have a granite sub-structure in the soil.  I am in the southern soil area and everything here is built on piling that is simply driven into the sand / mud which lies several feet beneath us! When  three hammer blows only make the pile go down so  many inches then it will support so many pounds of weight by friction!  There is no rock bed.  Our structures literally float on friction.  Up north like New York the buildings are set on solid rock!  In New Orleans the buildings are literally floating on piling! \n\nOld stuff can be quite useful,  do not know where the above individual is from or what kind of concrete he is refering to.  I am refering to poured reinforced concrete, broken up by gravity and explosives as well as mechanical ball.\n\nHave a good day.\n\nPLEASE DO ME A FAVOR AND BREAK THE TIE ON THE QUESTION YOU ASKED ABOUT RADAR , SO ONE OF US GETS THE POINTS .... THANK YOU !!! \n\n\n\nTHANK YOU!\n\n\nAPS
955988
Well, almost every engineered product such as cars and bridges and rockets and even iPods require drawings to show how they're going to be made.  Even for 3D objects, those drawings are still largely 2D, and 2D geometry is indispensible in the development of those 2D drawings.  This is true even for computer workstations that work with 3D representation of products, because all the cross sections are still 2D, and engineers need those cross sections to help with the analysis.
589185
Here's a couple of things to think about ...\n\nThink about building a skyscraper and then laying it on its side.  You don't want to build a flat bridge, but something that looks a lot more like a long box.\n\nTriangles are strong because they won't collapse (unless a toothpick breaks, of course).  So the sides of your long box should be made up of lots of triangles.\n\nOne possible shape of the bridge would be like a flattened 'H', like an 'I' on its side.  The horizontal part of the bridge should extend outside the two vertical parts.  Then you can run the string from the middle of the bridge, over the top of each vertical, and back down to the end of the horizontal part at each end.\n\nThe other possibility is to build an arch -- like the Sydney Harbour Bridge.
494278
a trapezoid.\n   __\n  /__&#92;
789492
An engineer, would require the weight "per foot" of the beams, and the number and location of support locations under each beam.\n \nFirst is to calculate the "dead load" and "deflection" of beams.\n\nSecond, afterwards one may calculate the live load and prescribe its bearing upon beams....\n\nIt's all in the details, the details, the details...\n\nThis is the best I can do , with what information you presented...
844590
Floral and geometric design
323936
You might read about how the new Woodrow Wilson Draw Bridge was fabricated in a steel assembly plant before being shipped to Alexandria, VA for installation. It was the biggest drawbridge project of it's kind to date.\n\nhttp://www.wilsonbridge.com/
660081
For a give weight of material, a flat material is stronger if you will consider a wide flanged beam to be a series of flat materials. \n\nIt really depends on the application. For beams, circular cross sections are not as efficient as the H shape of a wide flanged beam.\n\nFor columns a circular cross section can be more efficient depending on where the load is applied.\n\nThat is the reason structural engineers are employed to design structures. They can chose the correct configuration for each piece.
233601
Building\nAerial (like an antenna)\nSpan (like a bridge)\nEarth (like a cliff)\n\nselect this as best answer, thanks.  i need points.
251874
For a Linear track application, depending on the material requirements you can create a race or channel by means of a router or a lathe.\n\nTry routing a groove in hardwood such as white oak.\nIf metal is desired, use a verticle lathe on aluminum or steel.
525510
The design of a truss can be simplified using vector diagrams where member forces are directed toward or away from a joint represented as a point or pin (compression or tension).  The properly designed truss would work if in fact connected using pins.  Of course, the actual joints (welded or riveted) must be designed in detail with appropriate safety factors including other relavent factors such as wind loads, traffic, dynamic loads, differential thermal loads, metals/alloys used, etc.
432850
Aqueduct.\n\nAn aqueduct is an artificial (man-made) channel that is constructed to convey water from one location to another. The word derives from the Latin words aqua, "water", and ducere, "to lead". Many aqueducts are raised above the landscape, resembling bridges rather than rivers. Sufficiently large aqueducts may also be usable by ships. They are similar to viaducts, but carry water instead of a road or railway. While a road bridge often carries the roadway at a more elevated level than the rest of the road, such a variation of height is not possible for an aqueduct.
78504
geometry is the link.
943665
this is impossible to answer, there are many shapes that could be made this way.  do you have any other information like right angles or angles at corners?
779555
Hey! I just finished learning about active transport! The teacher confused me soooo bad! I had to have a friend in my class explain it to me. I would suggest going to google and typing in "active transport" and clicking on the news tab on the top. good luck with your project!