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Color-Changing Wheel

Medium Exhibit Stands · Optics

Operation: Press the "Start" button and observe the changes in the turntable's form. Scientific Principle: The phenomenon of persistence of vision. Eccentric circles appear to become concentric circles; during acceleration or deceleration of the stroboscopic turntable, the direction of rotation seems to change; the color-changing turntable produces different colors such as red, blue, and green. When the direction of the spiral lines is the same as the rotation of the disc, a visual effect of inward contraction is produced; when the direction of the spiral lines is opposite to the rotation of the disc, a visual effect of outward expansion is produced.

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