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  • Thumbnail for Newton's rings
    viewed with monochromatic light, Newton's rings appear as a series of concentric, alternating bright and dark rings centered at the point of contact between...
    11 KB (1,350 words) - 16:47, 25 September 2024
  • Thumbnail for Vertical launching system
    option. Some warships of China's People's Liberation Army Navy use a concentric canister launch (CCL) system that can launch using both hot and cold methods...
    25 KB (2,256 words) - 16:29, 23 October 2024
  • Thumbnail for Mark 13 missile launcher
    Standard at a rate of one every eight seconds. Its 40-round magazine consists of two concentric rings of vertically stored missiles, 24 in the outer ring...
    8 KB (707 words) - 07:25, 9 February 2024
  • Thumbnail for Castellum
    Chashi Chemin de ronde Chemise Cheval de frise Citadel Coercion castle Concentric castle Corner tower Counter-castle Curtain Drawbridge Enceinte Embrasure...
    1 KB (90 words) - 00:48, 12 April 2024
  • Thumbnail for Amal (carburettor)
    chamber, the Monobloc with an integral but offset float chamber and the Concentric, a later development with the float chamber directly below the body and...
    24 KB (3,113 words) - 10:47, 13 March 2024
  • Thumbnail for Fir Clump Stone Circle
    represented supernatural entities for the circle's builders. A double concentric circle consisting of sarsen megaliths, the Fir Clump stone circle was...
    12 KB (1,349 words) - 05:50, 7 November 2024
  • Thumbnail for John Cleves Symmes Jr.
    simplify his theory, abandoning the series of concentric inner spheres, and teaching "only one concentric sphere (a hollow earth), not five" by the time...
    29 KB (3,142 words) - 11:00, 18 October 2024
  • Thumbnail for Ejecta
    terrain. Some common ejecta features include ejecta blankets, radial and concentric ejecta patterns, and secondary craters. Ejecta Blankets: Ejecta blankets...
    10 KB (1,071 words) - 06:50, 10 June 2024
  • Thumbnail for Unusual types of gramophone records
    10-inch 78s with two concentric grooves (called Puzzle Record). Columbia also issued a few 10-inch 78s in 1931 with concentric grooves for their cheap...
    87 KB (9,191 words) - 16:20, 20 October 2024
  • Thumbnail for Zone plate
    by diffraction from an opaque disc. A zone plate consists of a set of concentric rings, known as Fresnel zones, which alternate between being opaque and...
    10 KB (1,324 words) - 18:28, 13 August 2024
  • Thumbnail for C/2017 T2 (PanSTARRS)
    two side jets in June 2020, but they weren't observed one month later. Concentric structures were observed in the inner coma in May 2020, probably created...
    6 KB (571 words) - 21:13, 26 October 2024
  • Thumbnail for Froebe helicopter
    elsewhere. Fitted with a de Havilland Gipsy aero engine, it had twin concentric contra-rotating rotors of stainless steel tubing with fabric covering...
    4 KB (406 words) - 11:29, 30 October 2024
  • Thumbnail for Magnifying glass
    glass can manifest as a sheet magnifier, employing numerous slender, concentric, ring-shaped lenses. These are collectively known as a Fresnel lens, which...
    14 KB (1,870 words) - 03:43, 4 October 2024
  • Hotmail and Software.com. Other partners include AT&T WorldNet Service, Concentric Network, EarthLink, Excite, FastNet, FlashNet, Juno Online Services and...
    7 KB (652 words) - 22:38, 29 April 2024
  • Cunnington excavated Woodhenge between 1926 and 1928 after a set of concentric rings darker than the surrounding turf was first observed through aerial...
    10 KB (1,096 words) - 06:36, 12 September 2024
  • Thumbnail for Portastudio
    sound quality and more features, including: dbx noise reduction, dual/concentric sweepable EQ's, and the ability to record on up to 4 tracks simultaneously...
    8 KB (842 words) - 03:53, 21 July 2024
  • Thumbnail for Pau Riba i Romeva
    (Single, Concèntric) 1972 L'home estàtic (Single, Concèntric) 1969 Miniatures (with Jaume Sisa, Cachas and Albert Batiste) (EP, Concèntric) 1970: Dioptria...
    7 KB (741 words) - 01:27, 9 March 2024
  • Thumbnail for Yellowmead stone circle
    Yellowmead stone circle near Sheepstor in Devon, England, is a Bronze Age concentric stone circle consisting of four rings of stones set within one another...
    2 KB (180 words) - 23:33, 6 February 2024
  • Thumbnail for Long Meg and Her Daughters
    megalithic art including a cup and ring mark, a spiral, and rings of concentric circles. This art mirrors examples from Neolithic Ireland, including the...
    17 KB (2,080 words) - 11:51, 13 October 2024
  • Thumbnail for Castle an Dinas, St Columb Major
    around the 3rd to 2nd century BCE and consists of three ditch and rampart concentric rings, 850 feet (260 m) above sea level. During the early 1960s it was...
    10 KB (1,122 words) - 15:02, 1 January 2024
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