~ Optical Illusion ~

  

Vertical and Horizontal Line Length Illusion

  This is a vertical and horizontal line length optical illusion. The vertical line that is part   of the image on the left looks longer than the horizontal line but when it is checked with   a ruler on the right image it is proved that they are exactly the same length.

Zollner Illusion

  

  The Zollner illusion is named after German astrophysicist Johann Karl Friedrich             Zollner. Although the black lines appear to not be parallel, in reality they are.

 Parallel Lines Cafe Wall Illusion

 This famous optical illusion makes the parallel horizontal lines appear to be bent when in fact they are straight. It was originally noticed amongst the tiles of a cafe wall and can now be seen in architecture such as on a large building in Melbourne, Australia.

  Borromean Rings Illusion

   These three colored rings form an arrangement known as the Borromean rings. It is an      optical illusion because three flat rings or circles cannot be connected in such a way.

 Depth Illusion

 This image gives the illusion of depth. As one looks at the picture the black and white      squares appear to form walls which lead down a long corridor.

Impossible Waterfall Illusion

 This picture shows an impossible waterfall illusion based on the famous lithograph print    by the Dutch artist M.C. Escher that was first printed in 1961. The picture suggests a  paradox where water from the base appears to move uphill before falling down the    waterfall.