Friday 30 November 2012

Cool Wallpaper Pics

Source (Google.com.pk)
Cool Wallpaper Pics Biography
A wallpaper group (or plane symmetry group or plane crystallographic group) is a mathematical classification of a two-dimensional repetitive pattern, based on the symmetries in the pattern. Such patterns occur frequently in architecture and decorative art. There are 17 possible distinct groups.

Wallpaper groups are two-dimensional symmetry groups, intermediate in complexity between the simpler frieze groups and the three-dimensional crystallographic groups (also called space groups).

Wallpaper groups categorize patterns by their symmetries. Subtle differences may place similar patterns in different groups, while patterns that are very different in style, color, scale or orientation may belong to the same group.

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 surfaces.

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 an abstract painting. In this wider sense, images can also be rendered manually, such as by drawing, 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 digital processes.


A picture, also called an image, is a group of colored points on a flat surface that looks the same as something else. For example, a picture can look the same as an object or a person. Pictures can also be drawings, paintings or photographs. People who make such pictures are called artists, photographers or painters. Pictures are very helpful. Sometimes people say pictures are worth a thousand words. 

An image is something that can be seen, but it is not physically there. It can be a photograph, a painting, or a picture on a television or computer screen. A lens can make an image of an object appear somewhere else. Cameras use this to make the image that becomes a photograph.

Cool Wallpaper Pics
 Cool Wallpaper Pics
 Cool Wallpaper Pics
 Cool Wallpaper Pics
 Cool Wallpaper Pics
 Cool Wallpaper Pics
 Cool Wallpaper Pics
 Cool Wallpaper Pics
 Cool Wallpaper Pics
 Cool Wallpaper Pics
 Cool Wallpaper Pics
 Cool Wallpaper Pics
 Cool Wallpaper Pics

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