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Description: Stare for approximately 30 seconds at the plus sign in the center of the left figure; then quickly transfer your gaze to the plus sign in the center of the right figure. You will see colors that are complementary to the originals.
Picture Stats: Views: 449 Filesize: 34.93kB Height: 600 Width: 1350 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=21242 |