Business

Alibaba revenue jumps in first quarter

Chinese e-commerce giant Alibaba said Thursday that first quarter revenue beat analyst estimates, defying a slowing economy and a trade war with the United States.

Engineering

3-D displays that 'accommodate' the human eye

Have you ever felt dizzy or nauseous after watching a 3D movie or using a virtual reality headset?  If so, it is probably because you were subconsciously able to detect the subtle differences between the virtual 3D scene ...

Hi Tech & Innovation

Tabs on Roger headed for coffee shop could spill ad-worthy beans

Location, location. Retailers see gold at the end of the location-tracking rainbow. They seek the advantage of targeting potential footsteps with relevant ads and offers. Questions: Where are you headed? When will you go ...

Computer Sciences

Researchers use machine learning to analyse movie preferences

Could behavioural economics and machine learning help to better understand consumers' movie preferences? A team of researchers from the University of Cambridge, the University of West England, and the Alan Turing Institute ...

Robotics

How realistic are those robots in Star Wars?

Computer Science and Engineering Professor Robin Murphy of Texas A&M University has taken a serious look at the robots of Star Wars fame and judges how realistic they are in a recent Science Robotics Focus piece—in it, ...

Engineering

Watch 3-D movies at home, sans glasses

While 3-D movies continue to be popular in theaters, they haven't made the leap to our homes just yet—and the reason rests largely on the ridge of your nose.

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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