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What trend is evidenced by the rise in credit card debt from 1969 to now?
Motion Toys
Mid-nineteenth century devices that facilitated the viewing of multiple moving images. See also thaumatrope; phenakistoscope; zoetrope; praxinoscope.
Sound on Disc
An early method of providing synchronized sound to silent films using records played in conjunction with the film's projection, before the advent of sound-on-film technology.
Photographic Gun
A device designed in the early history of photography to capture images quickly, resembling the operation of a gun.
Étienne-Jules Marey
A French scientist and chronophotographer, whose work is significant in the development of motion pictures.
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