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  2. List of optometric abbreviations - Wikipedia

    en.wikipedia.org/wiki/List_of_optometric...

    Prism dioptre D: Dioptres DC: Dioptres cylinder DNA: Did not attend DOB: Date of birth DS: Dioptres sphere DV: Distance vision DVD: Dissociated vertical deviation EF: Eccentric fixation FB: Foreign body FD: Fixation disparity FF: Foveal fixation FHG: Family history of glaucoma: FMH: Family medical history FOH: Family ocular history F/U: Follow ...

  3. Deck prism - Wikipedia

    en.wikipedia.org/wiki/Deck_prism

    The deck prism laid flush into the deck, the glass prism refracted and dispersed natural light into the space below from a small deck opening without weakening the planks or becoming a fire hazard. In normal usage, the prism hangs below the overhead and disperses the light sideways; the top is flat and installed flush with the deck, becoming ...

  4. Parallelepiped - Wikipedia

    en.wikipedia.org/wiki/Parallelepiped

    Any of the three pairs of parallel faces can be viewed as the base planes of the prism. A parallelepiped has three sets of four parallel edges; the edges within each set are of equal length. Parallelepipeds result from linear transformations of a cube (for the non-degenerate cases: the bijective linear transformations).

  5. Prismatic uniform 4-polytope - Wikipedia

    en.wikipedia.org/wiki/Prismatic_uniform_4-polytope

    Convex polyhedral prisms. The most obvious family of prismatic 4-polytopes is the polyhedral prisms, i.e. products of a polyhedron with a line segment.The cells of such a 4-polytope are two identical uniform polyhedra lying in parallel hyperplanes (the base cells) and a layer of prisms joining them (the lateral cells).

  6. Base (topology) - Wikipedia

    en.wikipedia.org/wiki/Base_(topology)

    In mathematics, a base (or basis; pl.: bases) for the topology τ of a topological space (X, τ) is a family of open subsets of X such that every open set of the topology is equal to the union of some sub-family of .

  7. Offutt Air Force Base - Wikipedia

    en.wikipedia.org/wiki/Offutt_Air_Force_Base

    Offutt Air Force Base / ˈ ɒ f ʌ t / (IATA: OFF, ICAO: KOFF, FAA LID: OFF) is a U.S. Air Force base south of Omaha, adjacent to Bellevue in Sarpy County, Nebraska.It is the headquarters of the U.S. Strategic Command (USSTRATCOM), the 557th Weather Wing, and the 55th Wing (55 WG) of the Air Combat Command (ACC), the latter serving as the host unit.

  8. Complex-base system - Wikipedia

    en.wikipedia.org/wiki/Complex-base_system

    In arithmetic, a complex-base system is a positional numeral system whose radix is an imaginary (proposed by Donald Knuth in 1955 [1] [2]) or complex number (proposed by S. Khmelnik in 1964 [3] and Walter F. Penney in 1965 [4] [5] [6]).

  9. For All Mankind (TV series) - Wikipedia

    en.wikipedia.org/wiki/For_All_Mankind_(TV_series)

    For All Mankind is an American science fiction drama television series created by Ronald D. Moore, Matt Wolpert, and Ben Nedivi and produced for Apple TV+.The series dramatizes an alternate history depicting "what would have happened if the global space race had never ended" after the Soviet Union succeeds in the first crewed Moon landing ahead of the United States. [1]