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  2. Hush kit - Wikipedia

    en.wikipedia.org/wiki/Hush_kit

    Hush kit for the Pratt and Whitney JT8D-1 through -17 engines Two JT4As installed on a KLM DC-8. A hush kit is an aerodynamic device used to help reduce the noise produced by older aircraft jet engines. These devices are typically installed on older turbojet and low-bypass turbofan engines, as they are much louder than later high-bypass ...

  3. KDK - Wikipedia

    en.wikipedia.org/wiki/KDK

    The first attempt was in 1983 when U.S.-based Patton Industries imported the electric oscillating fans, relabeled them "KDK by Patton", and the ceiling fans were then relabeled "RoyalAire" by Sumitomo America, one of Matsushita's banks, shareholders and insurance providers. This was a failure as the products never caught on with consumers.

  4. Backdraft - Wikipedia

    en.wikipedia.org/wiki/Backdraft

    A backdraft (North American English), backdraught (British English) [1] or smoke explosion is the abrupt burning of superheated gases in a fire caused when oxygen rapidly enters a hot, oxygen-depleted environment; for example, when a window or door to an enclosed space is opened or broken. Backdrafts are typically seen as a blast of smoke and ...

  5. Fire damper - Wikipedia

    en.wikipedia.org/wiki/Fire_damper

    Interior of German mechanical fire damper inside of a galvanised steel duct. Fire dampers (or fire shutters) are passive fire protection products used in heating, ventilation, and air conditioning (HVAC) ducts to prevent and isolate the spread of fire inside the ductwork through fire-resistance rated walls and floors. [1]

  6. Marquette Harbor Light - Wikipedia

    en.wikipedia.org/wiki/Marquette_Harbor_Light

    Marquette Harbor Light ; Location: Marquette Harbor, Marquette, Michigan Coordinates: 1]: Tower; Constructed: 1852: Foundation: Dressed stone/timber [5]: Construction: Brick: Height: 40 feet (12 m) [3]: Shape: Square: Markings: Red with white lantern: Heritage: National Register of Historic Places listed place : Light; First lit: 1853 [2]: Focal height: 77 feet (23 m) [4]: Lens: Fourth order ...

  7. Hugh Jackman - Wikipedia

    en.wikipedia.org/wiki/Hugh_Jackman

    Hugh Michael Jackman AC (born 12 October 1968) [1] is an Australian actor, singer, and producer. Beginning in theatre and television, Jackman landed his breakthrough role as Wolverine in the X-Men film franchise and the Marvel Cinematic Universe from X-Men (2000) to Deadpool & Wolverine (2024).