prisms
51Compound prism — A compound prism is a set of multiple triangular prism elements placed in contact, and often cemented together to form a solid assembly.[1] The use of multiple elements gives several advantages to an optical designer:[2] One can achieve spectral… …
52Hemipolyhedron — In geometry, a hemipolyhedron is a uniform star polyhedron some of whose faces pass through its center. These hemi faces lie parallel to the faces of some other symmetrical polyhedron, and their count is half the number of faces of that other… …
53Periscope — For the 1916 French film, see Le périscope. Principle of the periscope. The periscope on the left uses mirrors whereas the right uses prisms. a Mirrors b Prisms c Observer s eye …
54Cantellated tesseract — In geometry, the cantellated tesseract is a uniform polychora or 4 dimensional polytope bounded by 56 cells: 8 small rhombicuboctahedra, 16 octahedra, and 32 triangular prisms.ConstructionIn the process of cantellation, a polytopes faces are… …
55Stefano DiMera — Infobox soap character name = Stefano DiMera series = Days of our Lives portrayer = Joseph Mascolo (1982 1984, 1988, 1993 2001, 2007 2008, 2008 ) Frank Fata (1991) Davide Shiavone (2007 flashbacks as Young Stefano) first = February 1982 last =… …
56Rubik's Snake — A Rubik s Snake (also Rubik s Twist, Rubik s Transformable Snake, Rubik’s Snake Puzzle) is a toy with twenty four wedges shaped like right isosceles triangular prisms. The wedges are connected such that they can be twisted, but not separated.… …
57Tetrahedral prism — In geometry, a tetrahedral prism is a convex uniform polychoron (four dimensional polytope). This polychoron has 6 polyhedral cells: 2 tetrahedra connected by 4 triangular prisms. It has 14 faces: 8 triangular and 6 square. It has 16 edges and 8… …
58analysis — /euh nal euh sis/, n., pl. analyses / seez /. 1. the separating of any material or abstract entity into its constituent elements (opposed to synthesis). 2. this process as a method of studying the nature of something or of determining its… …
59Antiprism — An n sided antiprism is a polyhedron composed of two parallel copies of some particular n sided polygon, connected by an alternating band of triangles. Antiprisms are a subclass of the prismatoids.Antiprisms are similar to prisms except the bases …
60Dichroic prism — A trichroic prism assembly A dichroic prism is a prism that splits light into two beams of differing wavelength (colour). They are usually constructed of one or more glass prisms with dichroic optical coatings that selectively reflect or transmit …
