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  2. Heightmap - Wikipedia

    en.wikipedia.org/wiki/Heightmap

    A heightmap contains one channel interpreted as a distance of displacement or "height" from the "floor" of a surface and sometimes visualized as luma of a grayscale image, with black representing minimum height and white representing maximum height. When the map is rendered, the designer can specify the amount of displacement for each unit of ...

  3. Ceiling - Wikipedia

    en.wikipedia.org/wiki/Ceiling

    A ceiling can also be the upper limit of a tunnel. The most common type of ceiling is the dropped ceiling, [citation needed] which is suspended from structural elements above. Panels of drywall are fastened either directly to the ceiling joists or to a few layers of moisture-proof plywood which are then attached to the joists. Pipework or ducts ...

  4. Cave survey - Wikipedia

    en.wikipedia.org/wiki/Cave_survey

    A cave survey is a map of all or part of a cave system, which may be produced to meet differing standards of accuracy depending on the cave conditions and equipment available underground. Cave surveying and cartography , i.e. the creation of an accurate, detailed map, is one of the most common technical activities undertaken within a cave and ...

  5. AOL Mail

    mail.aol.com

    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  6. Tape correction (surveying) - Wikipedia

    en.wikipedia.org/wiki/Tape_correction_(surveying)

    The tape will pulled less than its standard length when a tension less than the standard tension is applied, making the tape too long. A tape stretches in an elastic manner until it reaches its elastic limit, when it will deform permanently and ruin the tape. The correction due to tension is given by:

  7. Clearance (civil engineering) - Wikipedia

    en.wikipedia.org/wiki/Clearance_(civil_engineering)

    In civil engineering, clearance refers to the difference between the loading gauge and the structure gauge in the case of railroad cars or trams, or the difference between the size of any vehicle and the width/height of doors, the width/height of an overpass or the diameter of a tunnel as well as the air draft under a bridge, the width of a lock or diameter of a tunnel in the case of watercraft.

  8. Floor marking tape - Wikipedia

    en.wikipedia.org/wiki/Floor_marking_tape

    A way of satisfying this requirement is photoluminescent tape, which glows in darkness without any external power source. [2] The IFC also requires that obstacles that are within 6.5 feet (2.0 m) of the floor surface be marked with luminescent striped tape, with an alternating striped pattern of luminous material and non-luminous black. [3]

  9. Minecraft (franchise) - Wikipedia

    en.wikipedia.org/wiki/Minecraft_(franchise)

    Minecraft is a media franchise developed from and centered around the video game of the same name. Primarily developed by Mojang Studios , the franchise consists of five video games, along with various books, merchandise, events, and an upcoming theatrical film.