4
The motion picture camera
Man has been beguiled by the movies for over a century now. One reason might be that it takes a disarmingly simple piece of equipment, the motion picture camera, to record images from the most fertile of our imaginations.
In essence, a motion picture camera is a couple of boxes, one with a lens on the front and a mechanism inside capable of dragging a length of film down a specific distance at least 16 times a second, and the other containing a suitable length of film to feed the mechanism with space remaining to take up the film after exposure.
When the pictures from this device are projected by a similar mechanism they give a valid representation of the original scene, with all the movements contained therein correctly ...
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