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  2. Mark IX - Wikipedia

    en.wikipedia.org/wiki/Mark_IX

    BL 9.2 inch gun Mk IX–X (1899), a British 9.2 inch coastal defence cannon; Armstrong Whitworth 12-inch 40-calibre naval gun Mark IX (1901), a British naval gun that was later used on land in the BL 12 inch Railway Gun; 21in Mk IX torpedo, a British 21-inch torpedo; Bliss-Leavitt Mark 9 torpedo (1915), an American 21-inch torpedo

  3. Multifaceted reflector - Wikipedia

    en.wikipedia.org/wiki/Multifaceted_reflector

    Left to right: MR16 with GU10 base, MR16 with GU5.3 base, MR11 with GU4 or GZ4 base Line drawing of an LED MR16 lamp, with a heatsink rather than a reflector. A multifaceted reflector (often abbreviated MR) light bulb is a reflector housing format for halogen as well as some LED and fluorescent lamps.

  4. BL 9.2-inch howitzer - Wikipedia

    en.wikipedia.org/wiki/BL_9.2-inch_howitzer

    Following the war, the US stock of 9.2-inch weapons was moved to the US and placed in reserve; a total of 45 guns. In April 1919, 40 of them were placed at coast defence installations for gun loading training. In 1923, these guns, plus the five others and 45,000 shells, were withdrawn to war reserve storage. In 1926 the 9.2 was listed for disposal.

  5. Light extraction in LEDs - Wikipedia

    en.wikipedia.org/wiki/Light_extraction_in_LEDs

    The reflection is most commonly reduced by using a dome-shaped (half-sphere) package with the diode in the center so that the outgoing light rays strike the surface perpendicularly, at which angle the reflection is minimized. Substrates that are transparent to the emitted wavelength, and backed by a reflective layer, increase the LED efficiency.

  6. Bliss-Leavitt Mark 9 torpedo - Wikipedia

    en.wikipedia.org/wiki/Bliss-Leavitt_Mark_9_torpedo

    The Bliss-Leavitt Mark 9 torpedo was a Bliss-Leavitt torpedo developed and produced by the E. W. Bliss Company and the Naval Torpedo Station in Newport, Rhode Island in 1915. The Mark 9 was originally intended to be used on battleships. Before the Mark 9 could be issued, however, use of torpedoes on battleships was discontinued and Mark 9 ...

  7. Luminous efficacy - Wikipedia

    en.wikipedia.org/wiki/Luminous_efficacy

    Sources that depend on thermal emission from a solid filament, such as incandescent light bulbs, tend to have low overall efficacy because, as explained by Donald L. Klipstein, "An ideal thermal radiator produces visible light most efficiently at temperatures around 6300 °C (6600 K or 11,500 °F). Even at this high temperature, a lot of the ...

  8. AN/SPG-62 - Wikipedia

    en.wikipedia.org/wiki/AN/SPG-62

    10 kW (average) The AN/SPG-62 is a continuous wave fire-control radar developed by the United States, and it is currently deployed on warships equipped with the Aegis Combat System . [ 1 ] It provides terminal target illumination for the semi-active SM-2MR / ER and ESSM Block 1 surface-to-air missiles .

  9. 8-inch/55-caliber gun - Wikipedia

    en.wikipedia.org/wiki/8-inch/55-caliber_gun

    The rounded roofs of early Mark 9 twin and triple turrets of USS Salt Lake City and USS Pensacola with the later turrets of USS New Orleans on the right.. The 8"/55 caliber gun (spoken "eight-inch-fifty-five-caliber") formed the main battery of United States Navy heavy cruisers and two early aircraft carriers.

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