Kopfermann cubes

line drawings of cubes that are perceived as two-dimensional figures rather than as three-dimensional cubes. A hexagon equally divided into six triangles is one example. In this case, gestalt principles of perception have been invoked to explain the compelling perception of two-dimensional triangles, rather than sides of a three-dimensional figure. [Hans Kopfermann, 20th-century German physicist and experimental psychologist]

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Psychology term of the day

December 27th 2024

wavelength

n. the distance between successive peaks in a wave motion of a given frequency, such as a sound wave or a wave of electromagnetic radiation. The wavelength is equal to the speed of propagation of the wave motion divided by its frequency.