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  2. Worth 4 dot test - Wikipedia

    en.wikipedia.org/wiki/Worth_4_dot_test

    The 3 green lights from the left eye are seen on the left side This is recorded as: W4LT (D): 5 lights (Uncrossed Diplopia) ET NB: The clinician will be unable to indicate which eye is the deviating eye based on these results alone.

  3. Semiregular polyhedron - Wikipedia

    en.wikipedia.org/wiki/Semiregular_polyhedron

    For example: 3.5.3.5 represents the icosidodecahedron, which alternates two triangles and two pentagons around each vertex. In contrast: 3.3.3.5 is a pentagonal antiprism. These polyhedra are sometimes described as vertex-transitive. Since Gosset, other authors have used the term semiregular in different ways in relation to higher dimensional ...

  4. Basis of a matroid - Wikipedia

    en.wikipedia.org/wiki/Basis_of_a_matroid

    The bases of a matroid characterize the matroid completely: a set is independent if and only if it is a subset of a basis. Moreover, one may define a matroid to be a pair (,), where is the ground-set and is a collection of subsets of , called "bases", with the following properties: [7] [8]

  5. People's Liberation Army Support Base in Djibouti - Wikipedia

    en.wikipedia.org/wiki/People's_Liberation_Army...

    The presence of a Chinese base in close proximity to a US base has created geopolitical tensions. The United States had blocked a Russian base in 2014 [citation needed] and started a US$1 billion upgrade of Camp Lemonnier [citation needed]. US government officials were "blindsided" by Djibouti's approval of a Chinese base just two years later. [4]

  6. Douglas X-3 Stiletto - Wikipedia

    en.wikipedia.org/wiki/Douglas_X-3_Stiletto

    The Douglas X-3 Stiletto is a 1950s United States experimental jet aircraft with a slender fuselage and a long tapered nose, manufactured by the Douglas Aircraft Company. Its primary mission was to investigate the design features of an aircraft suitable for sustained supersonic speeds, which included the first use of titanium in major airframe components.

  7. Deck prism - Wikipedia

    en.wikipedia.org/wiki/Deck_prism

    Group of original deck prisms. A deck prism, or bullseye, is a prism inserted into the deck of a ship to provide light down below. [1] [2] [3]For centuries, sailing ships used deck prisms to provide a safe source of natural sunlight to illuminate areas below decks.

  8. 5-cell - Wikipedia

    en.wikipedia.org/wiki/5-cell

    In geometry, the 5-cell is the convex 4-polytope with Schläfli symbol {3,3,3}. It is a 5-vertex four-dimensional object bounded by five tetrahedral cells. It is also known as a C 5, hypertetrahedron, 'pentachoron, [1] pentatope, pentahedroid, [2] tetrahedral pyramid, or 4-simplex (Coxeter's polytope), [3] the simplest possible convex 4-polytope, and is analogous to the tetrahedron in three ...

  9. XXX (film series) - Wikipedia

    en.wikipedia.org/wiki/XXX_(film_series)

    XXX (stylized as xXx and pronounced Triple X) is an American spy fiction action film series created by Rich Wilkes. It consists of three full-length feature films: XXX (2002), XXX: State of the Union (2005) and XXX: Return of Xander Cage (2017), and a short film: The Final Chapter: The Death of Xander Cage .