Cher Heart of Stone IllusionCategory: Double Meanings | Added: August 29, 2009 | 18 commentsThis album cover from Cher's Heart of Stone album is a take on the well known skull illusions - her dress design and pose in the picture help to create the overall impression of a skull.
Image Credit: Geffen Records Bjorn Borg Hollow FaceCategory: 3D Illusions | Added: August 29, 2009 | 7 commentsThis picture of Bjorn Borg created and used in experiments at Uppsala University in Sweden appears to be convex in that it is raised outwards from the frame towards you. In reality the image is actually concave, it is pushed inwards away from you. This type of illusion is known as the 'hollow-face illusion'.
Image Credit: Uppsala University Fraser Spiral IllusionCategory: Shape and Color | Added: August 29, 2009 | 8 commentsDeveloped by psychologist James Fraser in 1908, the Fraser Illusion appears to be a spiral pattern converging in the distant center with a black, white and grey chequered background. In reality the spirals are not really spirals at all but a series of concentric circles, the background gives the illusion that the circles are spiralled.
Image Credit: This image is believed to be in the public domain. Color Dove IllusionCategory: Afterimages | Added: August 29, 2009 | 47 commentsIn this illusion try staring at the dot at the center of the dove. When you move your eyes away you should see the afterimage of a red dove on a white background.
Image Credit: This image is believed to be in the public domain. Striped Circles IllusionCategory: Shape and Color | Added: August 26, 2009 | 12 commentsThese two shapes made up of striped lines look wavey and disorganised, however on closer inspection they actually make up two perfect circles, one inside the other.
Image Credit: This image is believed to be in the public domain.