Optical Illusions

Unusual 3D models like these create illusions that look impossible, thanks to a clever trick of perspective. For more deceptive illusions, visit https://www....

Watch as balls seem to move down an impossible slope. Find more about incredible illusions at https://www.newscientist.com/article/mg19526221-300-mind-tricks...

Optical Illusions 61 from Zane Education at http://www.zaneeducation.com - A Motion Illusion. The brain's reaction to the colour contrasts and position of the shapes is such that this static image appears to be moving.

Optical Illusion 60: Today's Optical Illusion ..... The White's Illusion Known as White's Illusion, is a counterintuitive illusion. When a grey rectangle is mainly surrounded by black it should look lighter. In this case, the grey rectangles are exactly the same shade of grey.

Optical Illusions 59 from Zane Education at http://www.zaneeducation.com - Another example of an impossible object. Three circular prongs at one end become two rectangular prongs at the other. This is known as a Blivet.

Optical Illusions 58 from Zane Education at http://www.zaneeducation.com - The Poggendorff Illusion First discovered in 1860 by Johann Poggendorf, the Poggendorff Illusion, illustrates how the brain can be tricked by the interaction of diagonal and horizontal lines. At first viewing, one assumes that the blue line is a continuation of the black line. However, on closer viewing it is actually the red line.

Optical Illusions 57 from Zane Education at http://www.zaneeducation.com - The Kanizsa Triangle Illusion Perhaps the most commonly known optical illusion. The Kanizsa Triangle was introduced by Gaetano Kanizsa, an Italian psychologist. One sees an inverted white equilateral triangle in front of the three black disks. However, the triangle is not drawn and the illusory triangle looks brighter than the background.

Optical Illusions 56 from Zane Education at http://www.zaneeducation.com - The Jastrow Illusion In this image, the two shapes are in fact identical in size. The Jastrow Illusion was discovered by Joseph Jastrow, the American psychologist, in 1889.

Optical Illusions 55 from Zane Education at http://www.zaneeducation.com - The Zollner Illusion The long black lines are in fact parallel to each other. The illusion is created by the shorter lines being at an angle to the longer lines, this creates the impression that one end of the longer lines is nearer to us.

Optical Illusions 54 from Zane Education at http://www.zaneeducation.com - The Impossible Cube Illusion The Impossible Cube Illusion is an illusion that draws on our natural desire to view the whole rather than individual elements of a drawing or picture. Each part of the drawing is ambiguous, where two lines cross it does not show which is behind and which is in front.

Optical Illusions 53 from Zane Education at http://www.zaneeducation.com - The Fraser Spiral Illusion First described by the British psychologist, James Fraser, in 1908 this is known as the Fraser Spiral Illusion. The overlapping black arcs appear to form a spiral; but, the arcs are simply a series of concentric circles.

Optical Illusions 52 from Zane Education at http://www.zaneeducation.com - Look closely, the orange circles are the same size... An illusion that plays on our perception of relative size. The first central circle appears smaller than the circle on the right yet they are identical in size. This is the Ebbinghaus Illusion.

Optical Illusions 51 from Zane Education at http://www.zaneeducation.com - The Bezold Effect? Named after Wilhelm von Bezold, the German professor of meteorology (1837-1907), who discovered that a colour may appear different depending upon its relation to adjacent colours. In this case, the Bezold Effect is such that the red seems lighter when combined with the white and darker when combined with the black.

Optical Illusions 50 from Zane Education at http://www.zaneeducation.com - Today's Optical Illusion ..... White is black, or is it? At first glance, it appears to be a black and white chess board with a green cylinder casting a shadow diagonally across the board. However, the black and white squares are simply different shades of grey. The 'white' squares underneath the shadow (including 'B') are actually exactly the same shade of grey as the 'black' squares outside (including 'A').