Mirror image

A mirror image (in a plane mirror) is a reflected duplication of an object that appears almost identical, but is reversed in the direction perpendicular to the mirror surface. As an optical effect it results from reflection off of substances such as a mirror or water. It is also a concept in geometry and can be used as a conceptualization process for 3-D structures.

In geometry and geometrical optics

In two dimensions

In geometry, the mirror image of an object or two-dimensional figure is the virtual image formed by reflection in a plane mirror; it is of the same size as the original object, yet different, unless the object or figure has reflection symmetry (also known as a P-symmetry).

Two-dimensional mirror images can be seen in the reflections of mirrors or other reflecting surfaces, or on a printed surface seen inside out.

If we look at an object that is effectively two-dimensional (such as writing) and then turn it towards a mirror, the object turns through an angle of 180 degrees and we see a left-right reversal in the mirror. In this example, it is the change in orientation rather than the mirror itself that causes the observed reversal. Another example is when we stand with our backs to the mirror and face an object that's in front of the mirror. Then we compare the object with its reflection by turning ourselves 180 degrees, towards the mirror. Again we perceive a left-right reversal due to a change in orientation. So, in these examples the mirror does not actually cause the observed reversals.

Mirror

A mirror is an object that reflects light in such a way that, for incident light in some range of wavelengths, the reflected light preserves many or most of the detailed physical characteristics of the original light. This is different from other light-reflecting objects that do not preserve much of the original wave signal other than color and diffuse reflected light.

The most familiar type of mirror is the plane mirror, which has a flat screen surface. Curved mirrors are also used, to produce magnified or diminished images or focus light or simply distort the reflected image.

Mirrors are commonly used for personal grooming or admiring oneself (in which case the archaic term looking-glass is sometimes still used), decoration, and architecture. Mirrors are also used in scientific apparatus such as telescopes and lasers, cameras, and industrial machinery. Most mirrors are designed for visible light; however, mirrors designed for other wavelengths of electromagnetic radiation are also used.

Image

An image (from Latin: imago) is an artifact that depicts visual perception, for example a two-dimensional picture, that has a similar appearance to some subject—usually a physical object or a person, thus providing a depiction of it.

Characteristics

Images may be two-dimensional, such as a photograph, screen display, and as well as a three-dimensional, such as a statue or hologram. They may be captured by optical devices – such as cameras, mirrors, lenses, telescopes, microscopes, etc. and natural objects and phenomena, such as the human eye or water.

The word image is also used in the broader sense of any two-dimensional figure such as a map, a graph, a pie chart, or a painting. In this wider sense, images can also be rendered manually, such as by drawing, the art of painting, carving, rendered automatically by printing or computer graphics technology, or developed by a combination of methods, especially in a pseudo-photograph.

A volatile image is one that exists only for a short period of time. This may be a reflection of an object by a mirror, a projection of a camera obscura, or a scene displayed on a cathode ray tube. A fixed image, also called a hard copy, is one that has been recorded on a material object, such as paper or textile by photography or any other digital process.

Dance Moms

Dance Moms is an American reality television series that debuted on Lifetime on July 13, 2011. Created by Collins Avenue Productions, the show follows the early training and careers of children in dance and show business under the tutelage of Abby Lee Miller, as well as the interactions of Miller and the dancers with their sometimes bickering mothers. Set in Pittsburgh, Pennsylvania and Los Angeles, California, the show is primarily filmed at the Abby Lee Dance Company studios. Dance Moms began its sixth season in 2016.

Synopsis

Primarily set in Pittsburgh, Pennsylvania and, since 2015 in Los Angeles, Dance Moms follows the Abby Lee Dance Company's Junior Elite Competition Team of mostly preteen girls as they travel week-to-week to various dance competitions, winning awards and preparing for Nationals, while at the same time being prepared by Abby Lee Miller to be "professional, employable working dancers." The series depicts the doting mothers as rivals of each other on behalf of their own daughters, often arguing with Miller and each other, and sometimes closing ranks against rival teams. Dance performances are creatively conceptualized by Miller and her dance instructors, with input from the show's producers, while choreography is done by Miller, her staff, and occasionally a guest choreographer. Various rival dance teams spur the team's competitiveness. The show's success is often credited to the drama and conflict among Miller and the moms, along with the weekly dances and the close relationships among the girls as viewers watch them grow up and improve their skills.