Factbites
 Where results make sense
About us   |   Why use us?   |   Reviews   |   PR   |   Contact us  

Topic: Prism geometry


Related Topics

In the News (Sun 29 Nov 09)

  
  Prism (geometry) - Wikipedia, the free encyclopedia
Prisms can be triangular, quadrilateral, rectangular, square, pentagonal (also known in optics as a pentaprism), hexagonal, etc., according to the shape of the base faces.
A parallelepiped is a prism of which the base is a parallelogram, or equivalently a polyhedron with 6 faces which are all parallelograms.
The volume of a prism is the product of the area of the base and the distance between the two base faces (in the case of a non-right prism, note that this means the perpendicular distance).
www.wikipedia.org /wiki/Prism%2B(geometry)   (430 words)

  
 [No title]   (Site not responding. Last check: 2007-11-07)
In geometry, a prism is a polyhedron made of two parallel copies of some polygonal base joined by faces that are rectangles or parallelograms.
The rectangular prism, or cuboid, and square prism are among the types of right prism, with a rectangular and square base, respectively.
The dual of a prism is a bipyramid.
www.informationgenius.com /encyclopedia/p/pr/prism__geometry_.html   (134 words)

  
 ninemsn Encarta - Pyramid (geometry)
Pyramid (geometry), solid figure formed by connecting every point on or interior to a plane polygon to a single point not in the plane.
A pyramid is thus a special case of a cone or of a polyhedron, a solid bounded by planes.
The volume of a pyramid is thus one-third of the volume of a prism that has the same base and altitude.
au.encarta.msn.com /encyclopedia_761552486/Pyramid_(geometry).html   (299 words)

  
 Porro prism - Wikipedia, the free encyclopedia
In optics, a Porro prism, named for its inventor Ignazio Porro, is a type of reflection prism used in optical instruments to alter the orientation of an image.
In operation, light enters the large rectagular face of the prism, undergoes total internal reflection twice from the sloped faces, and exits again through the large rectangular face.
Double Porro prism systems are used in small optical telescopes to re-orient an inverted image (an arrangement is known as a image erection system), and especially in many binoculars where they both erect the image and provide a longer, folded distance between the objective lenses and the eyepieces.
en.wikipedia.org /wiki/Porro_prism   (299 words)

  
 Prism   (Site not responding. Last check: 2007-11-07)
In optics, a prism is a device used to reflect light or to break it up (to disperse it) into its constituent spectral colors (colors of the rainbow), traditionally built in the shape of a right prism with triangular base.
Prisms are used to reflect light, for instance in binoculars, since they are easier to manufacture than mirrors.
Prisms can also be used to break up light into its constituent spectral colors because the refractive index depends on frequency (see dispersion); the white light entering the prism is a mixture of different frequencies, each of which gets bent slightly differently.
www.termsdefined.net /pr/prism.html   (648 words)

  
 Encyclopedia: Prism (geometry)   (Site not responding. Last check: 2007-11-07)
A prism with at least one rectangular side has all faces rectangular, and is called a rectangular prism; a rectangular prism with a square face has two opposite square faces, and is called a square prism.
In Maths geometry and some ancient physical theories, a Platonic solid is a convex polyhedron with all its faces being regular polygons of the same size and shape, and the same number of faces meeting at each of its vertices.
In geometry, polyhedra are associated into pairs called duals, where the vertices of one correspond to the faces of the other.
www.nationmaster.com /encyclopedia/Prism-(geometry)   (515 words)

  
 Prism (geometry) -- Facts, Info, and Encyclopedia article   (Site not responding. Last check: 2007-11-07)
A prism with at least one rectangular face has all faces rectangular, and is called a rectangular prism; a rectangular prism with a square face has two opposite square faces, and is called a square prism.
A prism that is both right and rectangular is a right rectangular prism, also called a (A rectangular parallelepiped) cuboid.
The (The magnitude of sound (usually in a specified direction)) volume of a prism is the product of the (A particular geographical region of indefinite boundary (usually serving some special purpose or distinguished by its people or culture or geography)) area of one of the bases and the distance between them.
www.absoluteastronomy.com /encyclopedia/P/Pr/Prism_(geometry).htm   (252 words)

  
 Prisms
A refracting prism is a convenient geometry to illustrate dispersion and the use of the angle of minimum deviation provides a good way to measure the index of refraction of a material.
Reflecting prisms are used for erecting or otherwise changing the orientation of an image and make use of total internal reflection instead of refraction.
The angle of minimum deviation for a prism may be calculated from the prism equation.
hyperphysics.phy-astr.gsu.edu /hbase/geoopt/prism.html   (284 words)

  
 PRISM (OPTICS) FACTS AND INFORMATION   (Site not responding. Last check: 2007-11-07)
In optics, a prism is a device used to refract light, reflect it or break it up (to disperse it) into its constituent spectral colours (colours of the rainbow).
The traditional geometrical shape is that of a triangular prism, with a triangular base and rectangular sides.
There are also ''polarizing prisms'' (also known as birefringent prisms) which can split a beam of light into components of varying polarization.
www.witwib.com /prism_(optics)   (277 words)

  
 Prism Diet -- Recommendations and Resources   (Site not responding. Last check: 2007-11-07)
In optics, a prism is a device used to refract light, reflect it or break it up (to disperse it) into its constituent spectral colours (colours of the rainbow), traditionally built in the shape of a right prism with triangular base.
The prism is designed such that one particular wavelength of the light exits the prism at a deviation angle (relative to the light's original path) of exactly 60°.
Double Porro prism systems are used in small optical telescopes to re-orientate an inverted image (an arrangement is known as a ''image erection system''), and especially in many binoculars where they both erect the image and provide a longer, folded distance between the objective lenses and the eyepieces.
www.becomingapediatrician.com /health/121/prism-diet.html   (1426 words)

  
 Cuboid - SkyGamers   (Site not responding. Last check: 2007-11-07)
In geometry, a cuboid is a solid figure bounded by six rectangular faces.
The square prism is a special case of the cuboid in which at least two faces are squares.
The cube is a special case of the square prism in which all faces are squares.
www.skygamers.com /Cuboid   (120 words)

  
 Non-deviating prism with continuously variable dispersion - Patent 5610771
The prisms are mounted near the edges of mutually insertable tubes (62, 64) and a refractive liquid is secured in a containment space bounded by the prism elements (41, 51).
This is caused by the interrelationship between the index of refraction of the prism materials, the prism geometry and the frequency (or wavelength) of the light passing through the prism.
Second prism 51 has a second index of refraction which according to one version of the present invention substantially matches the first index of refraction of the first prism 41, and second prism 51 is axially rotatable with respect to said first prism 41 along central optic axis 9.
www.freepatentsonline.com /5610771.html   (4248 words)

  
 Nikon MicroscopyU: Interactive Java Tutorials - Nomarski Prism Action in Polarized Light
The tutorial initializes with a randomly selected objective prism (10x through 60x) positioned between two polarizers (commonly referred to as a polarizer and an analyzer), which are oriented randomly with respect to the transmission vibration planes.
As the analyzer is rotated, the interference pattern observed in the Nomarski prism window changes from two parallel dark fringes with peripheral colored fringes (polarizers parallel) to a predominant central dark fringe flanked by colored fringes (polarizers crossed).
Prism wedges designed for objectives having different focal lengths and numerical apertures are cut at increasingly shallow angles (as magnification and numerical aperture increase) to yield narrower interference fringe banding.
www.microscopyu.com /tutorials/java/dic/nomarskipolarization   (593 words)

  
 PRISM - LoveToKnow Article on PRISM
frpicrua, properly a thing sawn, irpL~etv, to saw), in geometry a solid enclosed by plane surfaces, two of which, termed the ends, are parallel, equal, similar and similarly situated polygons, and the faces connecting the ends are parallelograms, equal in number to the sides of the polygon.
If the faces be perpendicular to the ends the prism i~ a right prism, and the faces are rectangles; otherwise the prism is oblique.
A prismoid differs from a prism in having for its ends two dissimilar parallel figures.
www.1911encyclopedia.org /P/PR/PRISM.htm   (159 words)

  
 The Ultimate Dove prism - American History Information Guide and Reference
A dove prism is a type of reflective prism which is used to invert an image.
A beam of light entering one of the sloped faces of the prism undergoes total internal reflection from the inside of the longest (bottom) face and emerges from the opposite sloped face.
Dove prisms have an interesting property that when they are rotated along their longitudinal axis, the transmitted image rotates at twice the rate of the prism.
www.historymania.com /american_history/Dove_prism   (154 words)

  
 MSN Encarta - Search Results - Prism
The faces of the prism in these planes are congruent...
If light passes through a prism, a transparent object with flat, polished surfaces at angles to one another, the exit ray is no longer parallel to...
congruent prisms, lateral area of a prism, lines in a prism, lines that intersect at a point, planes in a prism, right prisms, surface area of a...
ca.encarta.msn.com /Prism.html   (158 words)

  
 Mesh Generation
Successive prism layers are then added, each one of thickness equal to the thickness of the previous layer multiplied by the Expansion Factor, until the height of the next prism layer is approximately equal to its width/length.
Since the last layer of prisms have approximately unit aspect ratio (side lengths approximately equal), the transition between the prism elements and the tetrahedral elements is smoother using this option.
The prisms continue to be added until either the Number of Inflated Layers is reached or the prism layers begin to collide with each other or with the geometry boundaries.
www.ansys.com /dm_how_tos/cm_nn_mesh.html   (1246 words)

  
 Houston Independent School District   (Site not responding. Last check: 2007-11-07)
A prism is a three-dimensional figure whose top and bottom faces are congruent polygons in parallel planes.
If the building is a prism, it will have a polygon as a base (foundation) and another that is the same size and shape (congruent) as a top (roof).
Fractal geometry is the study of mathematical shapes that display a cascade of never-ending, self-similar, meandering detail as one observes them more closely.
www.uh.edu /hti/cu/2002/v03/13.htm   (4469 words)

  
 Prism - Wikipedia, the free encyclopedia
A Canadian rock band (Prism (band)), and their debut album (Prism (album)).
PRISM was the RISC processor used in Apollo DN10000 systems
This is a disambiguation page, a list of pages that otherwise might share the same title.
en.wikipedia.org /wiki/Prism   (108 words)

  
 Nikon MicroscopyU: Differential Interference Contrast (DIC) Microscopy
The same effect can also be achieved through the application of a fixed Nomarski prism system and a simple de Sénarmont compensator consisting of a quarter-wavelength retardation plate in conjunction with either the polarizer or analyzer.
Nomarski Prism Action in Polarized Light - When a Nomarski or modified Wollaston compound differential interference contrast (DIC) prism is sandwiched between two crossed polarizers and examined with light transmitted through both polarizers and the prism, a pattern of parallel interference fringes with a predominant central fl band (fringe) can be observed.
Wavefront Relationships in de Sénarmont and Nomarski DIC - In differential interference contrast (DIC) microscopy, the spatial relationship and phase difference between ordinary and extraordinary wavefronts is governed either by the position of the objective prism (Nomarski DIC) or the relationship between the polarizer and a thin quartz retardation plate in a de Sénarmont design.
www.microscopyu.com /articles/dic/dicindex.html   (1306 words)

  
 Space figures and basic solids
Everyday objects such as a tennis ball, a box, a bicycle, and a redwood tree are all examples of space figures.
A prism is a space figure with two congruent, parallel bases that are polygons.
The figure below is a pentagonal prism (the bases are pentagons).
www.mathleague.com /help/geometry/3space.htm   (945 words)

  
 Geometry Solids
We created the net by using a compass to first draw a circle, then we made the sides of the prism within the circle, we then drew rectangular sides from each of the edges, after that was all finished we cut out the prism and we had the net.
It was sort of difficult to make the net that we were going to put together as a prism, due to the fact that we had to put flaps on certain edges so the assembly would be easier.
We chose to do a rectangular prism because we thought that it would be easier to find an everyday object that looks similar to it.
ck022.k12.sd.us /studentprojects/geometrysolids.htm   (1359 words)

  
 Prism article - Prism Prism (geometry) Prism (optics) Prism (band) disambiguation - What-Means.com   (Site not responding. Last check: 2007-11-07)
Prism article - Prism Prism (geometry) Prism (optics) Prism (band) disambiguation - What-Means.com
This is a disambiguation page; that is, one that points to other pages that might otherwise have the same name.
Prism article - Prism definition - what means Prism
www.what-means.com /encyclopedia/Prism   (78 words)

  
 Prism   (Site not responding. Last check: 2007-11-07)
The prism is an n-sided, constant radius tube with n-sided planar faces on the ends of the tube.
The number of sides of a prism must be greater than or equal to three.
A prism may also be created using the pyramid command with all radii set to the same value.
cubit.sandia.gov /help-version7/Chapter_4/Geometry_Creation/Primitives/Prism.html   (94 words)

  
 School Aids   (Site not responding. Last check: 2007-11-07)
The theorems and principles of basic geometry are clearly presented in these workbooks, along with examples and exercises for practice.
All concepts are explained in an easy-to-understand fashion to help students grasp geometry and form a solid foundation for advanced learning in mathematics.
Understand the basics of geometry with these six wooden shapes: cube, cylinder, sphere, cone, triangular prism and pyramid.
www.edumart.com /sui/edumart/ecat.cgi/SA_SSCG/Mathematics/Geometry?cart_id=SA_SSCG.216.107.123.250&textonly=   (625 words)

  
 PinkMonkey.com Geometry Study Guide - 8.2 Prism
The two congruent polygons are called the two bases of the prism.
If the lateral edges are not perpendicular to the base the prism is called an oblique prism.
The surface area of the prism is the sum of the surface areas of all its surfaces.
www.pinkmonkey.com /studyguides/subjects/geometry/chap8/g0808201.asp   (168 words)

  
 Geometric Shapes and Figures
Geometry is the mathematical study of shapes, figures, and positions in space.
A shape is the outer form of an object or figure such as a circle, triangle, square, rectangle, parallelogram, trapezoid, rhombus, octagon, pentagon, and hexagon.
A solid is a three-dimensional figure such as a cube, cylinder, cone, prism, or pyramid.
www.42explore.com /geomet.htm   (1296 words)

  
 GEOMETRY BODY GENERAL [bnam] set_outer [set_inner*][elt]or ...
Cavitites may be given in the initial definition of the general body, as well as added or removed once the general body has been defined.
Mesh density may be controlled by the divisions on the lines that define the surfaces in the shell sets, and by the density parameter associated with those surfaces that have the Delaunay algorithm attached.
Create a general (multiple sided) body B13 from the surfaces forming a closed shell that are in the set OUTER.
www.princeton.edu /~dynaflow/femgv/manuals/userman/node139.htm   (469 words)

  
 El Arbi Toto Ph.D. Dissertation Abstract   (Site not responding. Last check: 2007-11-07)
Multichannel seismic profiles, potential fields and surface and subsurface data from the North Colombia fold belt reveal the cross-sectional geometry and the structural style of the Sinu-San Jacinto accretionary prism.
The structural interpretation indicates that the Sinu-San Jacinto prism is a two-sided wedge that developed in response to the compressional stresses at the convergent margin.
to the observed prism geometry suggests that high pore pressures occur in the prism.
estrella.geol.sc.edu /~agl/abstracts/totoabstract.htm   (259 words)

  
 E-Database of Math, March, 1998   (Site not responding. Last check: 2007-11-07)
When we put our second rectangular prism in the water, it displaced 17 milliliters of water, which indicated that the volume was 17 cm3.
When we put our third rectangular prism in the water, it displaced 975 milliliters of water, which indicated that the volume was 975 cm3.
When we put our fifth rectangular prism in the water, it displaced 2000 milliliters of water, which indicated that the volume was 2000 cm3.
youth.net /nsrc/math/math007.html   (4724 words)

Try your search on: Qwika (all wikis)

Factbites
  About us   |   Why use us?   |   Reviews   |   Press   |   Contact us  
Copyright © 2005-2007 www.factbites.com Usage implies agreement with terms.