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A linear zoetrope consists of an opaque linear screen with thin vertical slits in it. Behind each slit is an image, often illuminated. A motion picture is seen by moving past the display. Linear zoetropes have several differences compared to cylindrical zoetropes due to their different geometries.
A brightly illuminated subject was placed in front of a spinning Nipkow disk set with lenses that swept images across a static photocell. The thallium sulfide (thalofide) cell, developed by Theodore Case in the USA, detected the light reflected from the subject and converted it into a proportional electrical signal. This was transmitted by AM ...
Video of the propeller of a Bombardier Q400 taken with a digital camera showing the wagon-wheel effect Video of a spinning, patterned paper disc. At a certain speed the sets of spokes appear to slow and rotate in opposite directions.
Spinning_Dancer_Optical_Illusion_(2040_frames).ogv (Ogg Theora video file, length 1 min 1 s, 300 × 400 pixels, 673 kbps, file size: 4.91 MB) This is a file from the Wikimedia Commons . Information from its description page there is shown below.
Joseph Plateau created a combination of his phénakisticope and his Anorthoscope sometime between 1844 and 1849, resulting in a back-lit transparent disc with a sequence of figures that are animated when it is rotated behind a counter-rotating black disc with four illuminated slits, spinning four times as fast. Unlike the phénakisticope ...
Size: The average photo frame measures about 10 inches diagonally, roughly the same as an entry-level iPad. I'd consider that the minimum size; anything smaller will make it hard to view photos ...
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