The Beat Goes On
This kinetic clock features a heart that seems to beat with each passing second. The effect is made by the magic of a phenomenon called moiré, where intersecting patterns simulate motion. To create a kinegram—the illusion of movement in a still graphic image—the moiré effect is manipulated in a pre-motion-picture form of animation. Here, a perforated overlay turns independently of the clock mechanism, making a mesmerizing kinegram of a beating red heart underneath. Uses one D battery (not included). Designed by Zoltan Kecskemeti in Budapest; made in China.