Addiction

Study gauges support for restricting alcohol in kids' films

Alcohol exposure is common in popular films and research has demonstrated a link between alcohol exposure and use. Currently, only alcohol marketing in films is regulated—but not alcohol exposure, such as seeing an alcoholic ...

Medical research

New technique to detect extremely small numbers of virus cells

Annual vaccinations against seasonal flu have become a way to protect the elderly and vulnerable in society, but the development of new flu vaccines is both expensive and time-consuming. There is therefore a great need for ...

Neuroscience

A new brain-computer interface with a flexible backing

Engineering researchers have invented an advanced brain-computer interface with a flexible and moldable backing and penetrating microneedles. Adding a flexible backing to this kind of brain-computer interface allows the device ...

Ophthalmology

Exercise can provide relief for dry, itchy eyes

A team led by researchers from the University of Waterloo discovered that a significant increase in tear secretion and tear film stability after participating in aerobic exercise can be another remedy for relieving dry, itchy ...

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Film

Film encompasses individual motion pictures, the field of film as an art form, and the motion picture industry. Films are produced by recording images from the world with cameras, or by creating images using animation techniques or special effects.

Films are cultural artifacts created by specific cultures, which reflect those cultures, and, in turn, affect them. Film is considered to be an important art form, a source of popular entertainment and a powerful method for educating — or indoctrinating — citizens. The visual elements of cinema gives motion pictures a universal power of communication. Some films have become popular worldwide attractions by using dubbing or subtitles that translate the dialogue.

Traditional films are made up of a series of individual images called frames. When these images are shown rapidly in succession, a viewer has the illusion that motion is occurring. The viewer cannot see the flickering between frames due to an effect known as persistence of vision, whereby the eye retains a visual image for a fraction of a second after the source has been removed. Viewers perceive motion due to a psychological effect called beta movement.

The origin of the name "film" comes from the fact that photographic film (also called film stock) had historically been the primary medium for recording and displaying motion pictures. Many other terms exist for an individual motion picture, including picture, picture show, photo-play, flick. A common name for film in the United States is movie, while the Europeans prefer cinema. Additional terms for the field in general include the big screen, the silver screen, the cinema and the movies.

This text uses material from Wikipedia, licensed under CC BY-SA