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  2. Wallpaper paste - Wikipedia

    en.wikipedia.org/wiki/Wallpaper_paste

    Adhesive flakes that are mixed with water to produce wallpaper paste. Wallpaper adhesive or wallpaper paste is a specific adhesive, based on modified starch, methylcellulose, or clay [1] which is used to fix wallpaper to walls. [2] Wallpaper pastes have a typical shear thinning viscosity and a high wet adhesive tack.

  3. Food testing strips - Wikipedia

    en.wikipedia.org/wiki/Food_testing_strips

    One type of food testing strip is an assay enzyme reactant test, which requires the strip to be dipped into a blended mixture of food or test samples, distilled water and a reagent. Such tests are designed specifically to detect those strains of E.coli and Salmonella that are harmful to humans. A second type of food testing strip is a gram ...

  4. Parallax barrier - Wikipedia

    en.wikipedia.org/wiki/Parallax_barrier

    Berthier's diagram: A-B=glass plate, with a-b=opaque lines, P=Picture, O=Eyes, c-n=blocked and allowed views (Le Cosmos 05-1896)The principle of the parallax barrier was independently invented by Auguste Berthier, who published an article on stereoscopic pictures including his new idea illustrated with a diagram and pictures with purposely exaggerated dimensions of the interlaced image strips ...

  5. Vapor barrier - Wikipedia

    en.wikipedia.org/wiki/Vapor_barrier

    A vapor barrier on the warm side of the envelope must be combined with a venting path on the cold side of the insulation. This is because no vapor barrier is perfect, and because water may get into the structure, typically from rain. In general, the better the vapor barrier and the drier the conditions, the less venting is required. [7]

  6. Shark barrier - Wikipedia

    en.wikipedia.org/wiki/Shark_barrier

    A shark barrier (otherwise known as a "shark-proof enclosure" or "beach enclosure") is seabed-to-surface protective barrier that is placed around a beach to protect people from shark attacks. Often confused with shark nets , shark barriers form a fully enclosed swimming area that prevents sharks from entering (nets aim to reduce shark ...

  7. Mesoamerican Barrier Reef System - Wikipedia

    en.wikipedia.org/wiki/Mesoamerican_Barrier_Reef...

    A coral skeleton from the Mesoamerican Barrier Reef System, Quintana Roo, Mexico The Mesoamerican Barrier Reef System (MBRS), also popularly known as the Great Mayan Reef or Great Maya Reef, is a marine region that stretches over 1,126 kilometres (700 mi) along the coasts of four countries – Mexico, Belize, Guatemala, and Honduras – from Isla Contoy at the northern tip of the Yucatán ...

  8. West Bank barrier - Wikipedia

    en.wikipedia.org/wiki/West_Bank_Barrier

    The barrier is described by the Israeli Defense Forces as a "multi-layered composite obstacle", parts of it consisting of a 9 metres (30 ft) high concrete wall, [28] while other stretches consist of a multi-layered fence system, with three fences with pyramid-shaped stacks of barbed wire on the two outer fences and a lighter-weight fence with ...

  9. Traffic barrier - Wikipedia

    en.wikipedia.org/wiki/Traffic_barrier

    Traffic barrier with a pedestrian guardrail behind it. Traffic barriers (known in North America as guardrails or guard rails, [1] in Britain as crash barriers, [2] and in auto racing as Armco barriers [3]) keep vehicles within their roadway and prevent them from colliding with dangerous obstacles such as boulders, sign supports, trees, bridge abutments, buildings, walls, and large storm drains ...