Links to "Impossible Figures" Sites

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• PsychScholar site from Hanover
• "Ten Cool Sites" (on art & science)
• Julie Maas' equally cool site with a nice Tribar
• Science is Cool
• Computergraphics site from the University of Giessen

• a CabriJava animation of Oscar Reutersvärd's triangle
  [browser with recent java support required]