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Circle Waves
Suppose a plastic loop floats on the surface of a calm body of water. If
the ring begins to vibrate, it will send off circular waves both outside and
inside the loop. This image depicts such a situation. Here, the vibrating
ring is the wide black circle toward the center of the image, while the
colored circles represent the waves eminating from the ring. The interior
waves shrink through smaller and smaller circles, which become a point at the
center, and then emerge again as growing circles that have "turned inside out" (as
indicated by the colors around the circles).
This image appeared in Beyond the Third Dimension, and is part of
the video Fronts and Centers.
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