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  2. Awning - Wikipedia

    en.wikipedia.org/wiki/Awning

    Awnings were first used by the ancient Egyptian and Syrian civilizations. They are described as "woven mats" that shaded market stalls and homes. A Roman poet Lucretius, in 50 BC, said "Linen-awning, stretched, over mighty theatres, gives forth at times, a cracking roar, when much 'tis beaten about, betwixt the poles and cross-beams".

  3. Floating canvas - Wikipedia

    en.wikipedia.org/wiki/Floating_canvas

    The floating canvas is loosely handstitched in place between the outer jacket fabric and the inner lining. [2] The stitch used to secure floating canvas is called a pad stitch. [3] A full canvas is a floating canvas that lies along the entire front of the jacket, from the shoulder seam and lapel to the bottom hem. [4]

  4. Canvas - Wikipedia

    en.wikipedia.org/wiki/Canvas

    Bleaching-fields covered with sheets of new-made textiles, probably linen, very possibly canvas, 1670s near Haarlem in the Netherlands. Early canvas was made of linen, a sturdy brownish fabric of considerable strength. Linen is particularly suitable for the use of oil paint.

  5. Floating dock (jetty) - Wikipedia

    en.wikipedia.org/wiki/Floating_dock_(jetty)

    A floating dock, floating pier or floating jetty is a platform or ramp supported by pontoons. It is usually joined to the shore with a gangway. It is usually joined to the shore with a gangway. The pier is usually held in place by vertical poles referred to as pilings, which are embedded in the seafloor or by anchored cables . [ 1 ]

  6. Space frame - Wikipedia

    en.wikipedia.org/wiki/Space_frame

    The roof of this industrial building is supported by a space frame structure. If a force is applied to the blue node and the red bar were not present, the resultant effect on the structure would depend entirely on the blue node's bending rigidity, i.e. to its resistance (or lack thereof) to bending; however, with the red bar in place, then assuming negligible bending rigidity of the blue node ...

  7. Ballast tank - Wikipedia

    en.wikipedia.org/wiki/Ballast_tank

    Cross section of a vessel with a single ballast tank at the bottom. A ballast tank is a compartment within a boat, ship or other floating structure that holds water, which is used as ballast to provide hydrostatic stability for a vessel, to reduce or control buoyancy, as in a submarine, to correct trim or list, to provide a more even load distribution along the hull to reduce structural ...