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  2. Culvert - Wikipedia

    en.wikipedia.org/wiki/Culvert

    Culverts come in many sizes and shapes including round, elliptical, flat-bottomed, open-bottomed, pear-shaped, and box-like constructions. The culvert type and shape selection is based on a number of factors including requirements for hydraulic performance, limitations on upstream water surface elevation, and roadway embankment height.

  3. Mollweide projection - Wikipedia

    en.wikipedia.org/wiki/Mollweide_projection

    Mollweide projection of the world The Mollweide projection with Tissot's indicatrix of deformation. The Mollweide projection is an equal-area, pseudocylindrical map projection generally used for maps of the world or celestial sphere.

  4. Talk:List of AASHTO standards - Wikipedia

    en.wikipedia.org/wiki/Talk:List_of_AASHTO_standards

    • AASHTO Design Guidelines for "Mountable" Curbs • AASHTO Guide Specification for Seismic Isolation Design • AASHTO 1998 Article 5.8 AASHTO 1998 Article 5.8 • AASHTO AMRL AASHTO Materials Reference Laboratory (AMRL) • AASHTO FRPS-1-UL Design of Bonded FRP Systems for Repair and Strengthening of Concrete Bridge Elements • AASHTO GFRP-1-UL LRFD Bridge Design Guide Specifications for ...

  5. UsefulCharts - Wikipedia

    en.wikipedia.org/wiki/UsefulCharts

    The company has an associated YouTube channel where UN member states narrate over videos presenting educational charts. Baker has said the revenue between physical chart sales and the channel is "about 50/50." In a Global News segment covering UsefulCharts, a video detailing the history of Vancouver was highlighted. [7]

  6. Low-water crossing - Wikipedia

    en.wikipedia.org/wiki/Low-water_crossing

    The size of the culverts (often concrete pipes) is usually selected to allow the water to flow below the roadway and provide a dry crossing surface for most of the year. During periods of high water flow (e.g. spring runoff or flash floods), water will flow over the top of the crossing, as the culverts are not large enough to carry these flood ...

  7. Ellipsograph - Wikipedia

    en.wikipedia.org/wiki/Ellipsograph

    The motion of the rod is termed elliptical motion. The semi-axes a and b of the ellipses have lengths equal to the distances from the point on the rod to each of the two pivots. The straight lines described by the pivots are special cases of an ellipse, where the length of one axis is twice the distance between the pivots and that of the other ...

  8. Is Enron back? If it's a joke, some former employees aren't ...

    www.aol.com/enron-back-joke-former-employees...

    An elaborate parody appears to be behind an effort to resurrect Enron, the Houston-based energy company that exemplified the worst in American corporate fraud and greed after it went bankrupt in 2001.

  9. Elliptical dome - Wikipedia

    en.wikipedia.org/wiki/Elliptical_dome

    An elliptical dome at the San Domenico, Modena, in Modena, Italy An elliptical dome , or an oval dome , is a dome whose bottom cross-section takes the form of an ellipse . [ 1 ] Technically, an ellipsoidal dome has a circular cross-section, so is not quite the same.