In an early chapter of his interesting new book, Symmetry: A Journey Into the Patterns of Nature, Marcus du Sautoy describes a visit to the Alhambra, the great Moorish palace in Granada, Spain. He and ...

What is symmetry in architecture? Why is it used to design spaces? What advantages and disadvantages does it present compared to other projection tools such as rotation, translation, and/or repetition ...

This paper is concerned with a striking visual experience: that of seeing geometric visual hallucinations. Hallucinatory images were classified by Klüver into four groups called form constants ...