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  2. Awning - Wikipedia

    en.wikipedia.org/wiki/Awning

    Retractable awnings let owners control the weather on their own terms. When passing showers threaten, or when the sun gets hot, they or the home automation system unroll the awning for near-instant protection and shade. Lab test measurements show that it can be as much as 10 °C (20 °F) cooler under an awning's canopy.

  3. Canopy (architecture) - Wikipedia

    en.wikipedia.org/wiki/Canopy_(architecture)

    Canopy over a doorway in Fergana, Uzbekistan Canopied entrance to the New York City Subway at the 14th Street–Union Square station. A canopy is a type of overhead roof or else a structure over which a fabric or metal covering is attached, able to provide shade or shelter from weather conditions such as sun, hail, snow and rain.

  4. Aquatic weed harvester - Wikipedia

    en.wikipedia.org/wiki/Aquatic_weed_harvester

    Truxor in action on a freshwater lake. An aquatic weed harvester, also known as a water mower, [1] [2] mowing boat and weed cutting boat, [3] is an aquatic machine specifically designed for inland watercourse management to cut and harvest underwater weeds, reeds and other aquatic plant life. [4]

  5. Retractable roof - Wikipedia

    en.wikipedia.org/wiki/Retractable_roof

    A retractable roof is a roof system designed to roll back the roof of a structure so that the interior of the facility is open to the outdoors. [1] Retractable roofs are sometimes referred to as operable roofs or retractable skylights. The term operable skylight, while quite similar, refers to a skylight that opens on a hinge, rather than on a ...

  6. Cattle grid - Wikipedia

    en.wikipedia.org/wiki/Cattle_grid

    Cattle grid on country road. Cattle grids are usually installed on roads where they cross a fenceline, often at a boundary between public and private lands. [5] They are an alternative to the erection of gates that would need to be opened and closed when a vehicle passes, and are common where roads cross open moorland, rangeland or common land maintained by grazing, but where segregation of ...

  7. Bubble canopy - Wikipedia

    en.wikipedia.org/wiki/Bubble_canopy

    The canopy of the F-16 comprises a single piece of bird-proof polycarbonate; it lacks the forward bow frame found on many fighters, which is an obstruction to a pilot's forward vision. [ 10 ] [ 11 ] Bubble canopies were also incorporated into the Lockheed Martin F-22 Raptor [ 12 ] and the Eurofighter Typhoon , both being fighters oriented ...