What is "reflection"

Angle \An"gle\ ([a^][ng]"g'l), n. [F. angle, L. angulus angle, corner; akin to uncus hook, Gr. 'agky`los bent, crooked, angular, 'a`gkos a bend or hollow, AS. angel hook, fish-hook, G. angel, and F. anchor.]

1. The inclosed space near the point where two lines meet; a corner; a nook.

   Into the utmost angle of the world.
   --Spenser.

   To search the tenderest angles of the heart.
   --Milton.

2. (Geom.)

   1. The figure made by. two lines which meet.

   2. The difference of direction of two lines. In the lines meet, the point of meeting is the vertex of the angle.

3. A projecting or sharp corner; an angular fragment.

   Though but an angle reached him of the stone.
   --Dryden.

4. (Astrol.) A name given to four of the twelve astrological ``houses.'' [Obs.]
   --Chaucer.

5. [AS. angel.] A fishhook; tackle for catching fish, consisting of a line, hook, and bait, with or without a rod. Give me mine angle: we 'll to the river there. --Shak. A fisher next his trembling angle bears. --Pope. Acute angle, one less than a right angle, or less than 90[deg]. Adjacent or Contiguous angles, such as have one leg common to both angles. Alternate angles. See Alternate. Angle bar.

   1. (Carp.) An upright bar at the angle where two faces of a polygonal or bay window meet.
      --Knight.

   2. (Mach.) Same as Angle iron.

      Angle bead (Arch.), a bead worked on or fixed to the angle of any architectural work, esp. for protecting an angle of a wall.

      Angle brace, Angle tie (Carp.), a brace across an interior angle of a wooden frame, forming the hypothenuse and securing the two side pieces together.
      --Knight.

      Angle iron (Mach.), a rolled bar or plate of iron having one or more angles, used for forming the corners, or connecting or sustaining the sides of an iron structure to which it is riveted.

      Angle leaf (Arch.), a detail in the form of a leaf, more or less conventionalized, used to decorate and sometimes to strengthen an angle.

      Angle meter, an instrument for measuring angles, esp. for ascertaining the dip of strata.

      Angle shaft (Arch.), an enriched angle bead, often having a capital or base, or both.

      Curvilineal angle, one formed by two curved lines.

      External angles, angles formed by the sides of any right-lined figure, when the sides are produced or lengthened.

      Facial angle. See under Facial.

      Internal angles, those which are within any right-lined figure.

      Mixtilineal angle, one formed by a right line with a curved line.

      Oblique angle, one acute or obtuse, in opposition to a right angle.

      Obtuse angle, one greater than a right angle, or more than 90[deg].

      Optic angle. See under Optic.

      Rectilineal or Right-lined angle, one formed by two right lines.

      Right angle, one formed by a right line falling on another perpendicularly, or an angle of 90[deg] (measured by a quarter circle).

      Solid angle, the figure formed by the meeting of three or more plane angles at one point.

      Spherical angle, one made by the meeting of two arcs of great circles, which mutually cut one another on the surface of a globe or sphere.

      Visual angle, the angle formed by two rays of light, or two straight lines drawn from the extreme points of an object to the center of the eye.

      For Angles of commutation, draught, incidence, reflection, refraction, position, repose, fraction, see Commutation, Draught, Incidence, Reflection, Refraction, etc.

late 14c., reflexion, in reference to surfaces throwing back light or heat, from Late Latin reflexionem (nominative reflexio) "a reflection," literally "a bending back," noun of action from past participle stem of Latin reflectere "to bend back, bend backwards, turn away," from re- "back" (see re-) + flectere "to bend" (see flexible). Of the mind, from 1670s. Meaning "remark made after turning back one's thought on some subject" is from 1640s. Spelling with -ct- recorded from late 14c., established 18c., by influence of the verb.

n. 1 The act of reflecting or the state of being reflected. 2 The property of a propagated wave being thrown back from a surface (such as a mirror). 3 Something, such as an image, that is reflected. 4 (senseid en consideration) Careful thought or consideration.

1. n. a calm lengthy intent consideration [syn: contemplation, reflexion, rumination, musing, thoughtfulness]

2. the phenomenon of a propagating wave (light or sound) being thrown back from a surface [syn: reflexion]

3. expression without words; "tears are an expression of grief"; "the pulse is a reflection of the heart's condition" [syn: expression, manifestation, reflexion]

4. the image of something as reflected by a mirror (or other reflective material); "he studied his reflection in the mirror" [syn: reflexion]

5. a likeness in which left and right are reversed [syn: mirror image, reflexion]

6. (mathematics) a transformation in which the direction of one axis is reversed

7. a remark expressing careful consideration [syn: observation, reflexion]

8. the ability to reflect beams or rays [syn: reflexion, reflectivity]

Reflection or reflexion may refer to:

In computer science, reflection is the ability of a computer program to examine, introspect, and modify its own structure and behavior at runtime.

Reflection was formed in 1992 in Dortmund, Germany. They play thrash metal.

Reflection was an album recorded in 1971 by folk-rock band Pentangle.

The album was recorded over a three-week period in March 1971, at a time when the tensions between the band members were high. Different band members were continually threatening to leave and attendance by Jansch and Renbourn at the recording sessions was dependent on their state of sobriety.

Reflection is an album released in 1984 by Demis Roussos.

After having collaborated several times since the days of Aphrodite's Child, Reflection was the last album on which Roussos and Vangelis collaborated. Another member from that band, guitarist Argyris 'Silver' Koulouris, also appears on this album. Vangelis’ habitual collaborators, jazz saxophonist Dick Morrissey, and vocalists Carol Kenyon and Tessa Niles also appear.

In mathematics, a reflection (also spelled reflexion) is a mapping from a Euclidean space to itself that is an isometry with a hyperplane as a set of fixed points; this set is called the axis (in dimension 2) or plane (in dimension 3) of reflection. The image of a figure by a reflection is its mirror image in the axis or plane of reflection. For example the mirror image of the small Latin letter p for a reflection with respect to a vertical axis would look like q. Its image by reflection in a horizontal axis would look like b. A reflection is an involution: when applied twice in succession, every point returns to its original location, and every geometrical object is restored to its original state.

The term "reflection" is sometimes used for a larger class of mappings from a Euclidean space to itself, namely the non-identity isometries that are involutions. Such isometries have a set of fixed points (the "mirror") that is an affine subspace, but is possibly smaller than a hyperplane. For instance a reflection through a point is an involutive isometry with just one fixed point; the image of the letter p under it would look like a d. This operation is also known as a central inversion , and exhibits Euclidean space as a symmetric space. In a Euclidean vector space, the reflection in the point situated at the origin is the same as vector negation. Other examples include reflections in a line in three-dimensional space. Typically, however, unqualified use of the term "reflection" means reflection in a hyperplane.

A figure that does not change upon undergoing a reflection is said to have reflectional symmetry.

Some mathematicians use "flip" as a synonym for "reflection".

Reflection is the change in direction of a wavefront at an interface between two different media so that the wavefront returns into the medium from which it originated. Common examples include the reflection of light, sound and water waves. The law of reflection says that for specular reflection the angle at which the wave is incident on the surface equals the angle at which it is reflected. Mirrors exhibit specular reflection.

In acoustics, reflection causes echoes and is used in sonar. In geology, it is important in the study of seismic waves. Reflection is observed with surface waves in bodies of water. Reflection is observed with many types of electromagnetic wave, besides visible light. Reflection of VHF and higher frequencies is important for radio transmission and for radar. Even hard X-rays and gamma rays can be reflected at shallow angles with special "grazing" mirrors.

Reflection is the third studio album released by the American Christian tween pop girl group, The Rubyz. According to Jesus Freak Hideout, the album, billed as an "MVP" format-album (Music, Video, Purpose), was released in two parts on May 3, 2011. The first part is a DVD and the second part is an album download. Unlike Sound Off, this album does not have sing-along tracks.

Reflection is the second album by the Christian hardcore band, Unashamed and the first album to feature Drummer Jason Carson.

"Reflection" is a song written and produced by Matthew Wilder and David Zippel for the soundtrack of Disney's 1998 animated film Mulan. In the film, the song is performed by Filipina singer and actress Lea Salonga as Fa Mulan. An accompanying music video for "Reflection" was included as a bonus to the Disney Gold Classic Collection DVD release of the film in 1998.

A single version of the song was recorded by American singer Christina Aguilera and became her debut single. She was 17 at the time it was released. The single's commercial success funded Aguilera's debut album from RCA, in addition to gaining her credibility amongst established writers and producers. Releases of the single were limited, which resulted in the track charting only on the Billboard Adult Contemporary chart, at number nineteen. An accompanying music video for the song was included on the DVD release of Mulan. Aguilera has performed the track on four televised performances, including at the CBS This Morning show, which saw her gain the attention of songwriter Diane Warren.

"Reflection" was the Austrian representative in the Eurovision Song Contest 1999, performed in English (only the second time, following My Little World, that Austria had not featured lyrics in German or a dialect thereof) by Bobbie Singer.

The song was performed eighteenth on the night, following Ireland's The Mullans with " When You Need Me" and preceding Israel's Eden with " Yom Huledet (Happy Birthday)"). At the close of voting, it had received 65 points, placing 10th in a field of 23.

The song is a love song, in which Singer describes the power of "the reflection in your eyes".

It was succeeded as Austrian representative in the 2000 Contest by The Rounder Girls performing " All To You".

Category:Eurovision songs of Austria Category:Eurovision songs of 1999 Category:English-language Austrian songs Category:1999 songs

Reflection in computer graphics is used to emulate reflective objects like mirrors and shiny surfaces.

Reflection is accomplished in a ray trace renderer by following a ray from the eye to the mirror and then calculating where it bounces from, and continuing the process until no surface is found, or a non-reflective surface is found. Reflection on a shiny surface like wood or tile can add to the photorealistic effects of a 3D rendering.

• Polished - A polished reflection is an undisturbed reflection, like a mirror or chrome.
• Blurry - A blurry reflection means that tiny random bumps on the surface of the material cause the reflection to be blurry.
• Metallic - A reflection is metallic if the highlights and reflections retain the color of the reflective object.
• Glossy - This term can be misused. Sometimes, it is a setting which is the opposite of blurry (e.g. when "glossiness" has a low value, the reflection is blurry). However, some people use the term "glossy reflection" as a synonym for "blurred reflection". Glossy used in this context means that the reflection is actually blurred.

Reflection is the debut studio album by American girl group Fifth Harmony. It was released on January 30, 2015, by Syco Music and Epic Records. Lyrically, the album discusses themes of female-empowerment, romance, heartbreak and confidence. Describing itself as a pop album, while showcasing synth-pop, grungy hip-hop and R&B. The album features guest appearances from American rappers Kid Ink and Tyga, as well as American pop singer Meghan Trainor, while it was serving collaborations with several producers such as Ori Kaplan, Dr. Luke and StarGate. The album entered at number 5 on the US Billboard 200, with 80,000 equivalent units (with 62,000 of that coming from traditional album sales) and became their highest-charting release on the charts. The album also performed moderately in other countries, becoming the group's first top 20 entry in the United Kingdom, after peaking at number 18 and charting within the top 30 of ten additional countries. To further promote the album, the group embarked on their first headlining tour, the Reflection Tour, visiting the United States, Canada, Mexico and Europe.

The album was supported by three singles: Its lead single, " Boss" was released on July 7, 2014. Peaking at number 43 on the US Billboard Hot 100. The second single, " Sledgehammer" premiered on October 28, 2014. Reaching at number 40 on the Billboard Hot 100. The third single, " Worth It" featuring Kid Ink, was released on March 3, 2015. The song performed strongly worldwide by peaking at number 12 on the Billboard Hot 100, and has reached the top 20 in fifteen additional countries. Both "Boss" and "Sledgehammer" achieved platinum certification in the United States, while "Worth It" became a certified triple platinum in the country. In February 2016, Reflection was certified gold by Recording Industry Association of America (RIAA) for combined sales, streaming and track equivalent units of 500,000. As of February 2016, the album has sold 155,000 copies in the United States.