Rings appear to rotate clockwise constantly, though their positions do not change. (another demo of phenomenal phenomena)pic.twitter.com/d2QFaonAcv
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Gregory, R. L. & Heard, P. F. (1983). Visual dissociations of movement, position, and stereo depth. Quarterly Journal of Experimental Psychology, A, 35, 217-237.
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Even upside down. Haha
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