ILLUSIONS & IMPOSSIBLE FIGURES A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z                    HOME ABOUT CATEGORIES SITE MAP COPYRIGHT ADVERTISE CONTACT entire Web this site irradiation illusion A distortion illusion discovered by Hermann von Helmholtz in the 19th century. Despite the fact that the two above figures are identical in size, the white hole looks bigger than the black one. Related category    • ILLUSIONS AND IMPOSSIBLE FIGURES Also on this site: Encyclopedia of Alternative Energy & Sustainable Living Encyclopedia of History Transport Concepts & Designs (partner site) BACK TO TOP