Science Fair Project Encyclopedia For images in Wikipedia, see
Wikipedia:Images. Images may be two-dimensional (e.g. a
photograph) or three dimensional (e.g. a statue). They are
typically produced by optical devices—such as a 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 or illustration, e.g. a map, a graph, a pie
chart, an abstract painting, etc. In this wider sense, images
can also be produced manually (by drawing, painting, carving,
etc.), by computer graphics technology, or a combination of the
two (see pseudo-photograph). A volatile image is one that exists
only for a short period of time, e.g. the reflection of an
object by a mirror, a projection of the sun on a wall by a
pinhole camera, or a scene displayed on a cathode ray tube. A
fixed image, also called hardcopy, is one that has been recorded
on a material object, such as paper or textil