A public service announcement (PSA) or public service ad is a type of advertisement featured on television, radio, print or other media. Whereas the objective of a standard advertisement is to market a product, a PSA is intended to change the public interest, by raising awareness of an issue, affecting public attitudes, and potentially stimulating action.
Thursday, June 23, 2011
Silent Film Description
A silent film is a film with no synchronized recorded sound, especially spoken dialogue. In silent films for entertainment the dialogue is transmitted through muted gestures, pantomime and title cards. The idea of combining motion pictures with recorded sound is nearly as old as film itself, but because of the technical challenges involved, synchronized dialogue was only made practical in the late 1920s with the perfection of the audion amplifier tube and the introduction of the Vitaphone system.
Wednesday, May 25, 2011
Monday, May 2, 2011
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