I have discovered a new way to animate images on mobile phones. I have long been interested in how some moiré patterns seem to appear and disappear when zebra-striped images are scrolled in a web browser or on a smartphone screen. Such effects depend on the speed of the scroll and the contrast, angle, and spacing of the stripes. By experimenting, I have been able to exploit this effect to create images that move from side to side or vibrate and shimmer frame to frame. Taking inspiration from barrier-grid (slit) animations, I have created hummingbirds, rolling rocking horses, and bouncing balls. The physics of the moiré patterns, and the creativity of the physicist, assist in the successful execution of this challenging new artform.
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TECHNOLOGY IN THE CLASSROOM| December 01 2020
James Lincoln; Digital scrolling and moiré pattern animations. Phys. Teach. 1 December 2020; 58 (9): 684–685. https://doi.org/10.1119/10.0002748
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