[EMBED]
                           [Illusion_temp_AB.jpg]


   [Reversible_Goblet.jpg]

   Reversible Goblet 

   There are two competing aspects in this illustration. One is the
   obvious shape of a goblet. The other, more subtle aspect, consists of
   two opposing faces in profile formed by the goblet stem against the
   background.

   This kind of ambiguous illusion is called a "figure-ground reversal"
   because we think of the goblet figure as part of the fore-ground and
   the faces as part of the back-ground.


   Art: ©2004 R. Ausbourne.

              Copyright SandlotScience.com All rights reserved.
                                 Contact us