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![]() ![]() ![]() Impossible Ziggurat, 1973 / Floating City, 1974 / Odd Steps, 1973 The Ziggurat featured in The Penrose triangle and a family of related figures, a paper by Stephen W. Draper of the University of Sussex in Perception Vol. 7, 283-296 (1978) | ||||||||
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![]() Space Construction, 1974, ink on A3 card | ![]() Unstable Tower, 1974, ink on A3 card |
![]() Sculptural Project, 1974, ink on A3 card | ||||||
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The drawing Space Construction (above) is now featured on the Passion for Puzzles website, which includes a section on Optical Illusions. | ||||||||
![]() ![]() Impossible object designs from an extended collection of types, 1978 & 1980 |
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![]() Impossible Object design included in the doctoral thesis on M.C. Escher of Sabine Lepsky (geb. Weber) |
![]() Guided Tour, "Constructivist Baroque" with lay figure |
![]() Impossible artwork, 1991 |
![]() "Came across some mislaid pics taken in '79, and was amused at the apparent 3D quality of drawings being examined. Fairly leap up from the paper..." H.T. |
![]() "Interdimensional Traffic Control" (1976) pen & ink on paper, used in Banana Wings #10 (C. Brialey, M. Plummer) & Krax #41 (Andy Robson) |
![]() "Game For Two Consenting Astronauts" (1990) pen & ink on paper |
![]() 1992 Impossible object design with space theme, pen & ink on paper, back cover illo for STET #9 (David & Leah Smith) |
![]() The artist at work on a piece of impossible sculpture, 1990, pen & ink on paper, used in Krax #41 (Andy Robson) | ![]() 1995 Impossible object design featuring Skel (or Eton), pen & ink on paper, used as back cover of Terrible Work #6 (1996), front cover of Krax #37 (2000) | ![]() 1995 Impossible object design featuring Skel, Eton and a friend, pen & ink on paper, used as interior illo for Terrible Work #6 (1996) |
Further impossible object design from the 1990s, pen & ink on paper centre column: Monkey Puzzle | ![]() |
![]() The Proceedings of the The Leonardo Fan Foundation (1993) |
3D Triad designs inspired by Harry Turner's correspondence with fellow impossible object creator Diego Uribe of Buenos Aires, Argentina. The designs work with both red/blue and red/green 3D glasses. With the red filter over the left eye, the designs appear to rise out of the plane of the screen and they appear to dive into the plane of the screen with the red filter over the right eye.
Triad designs by H. Turner, 3D effects added by P. Turner |
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