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The Theory and Practice of Origami Erik Demaine M.I.T.

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Presentation on theme: "The Theory and Practice of Origami Erik Demaine M.I.T."— Presentation transcript:

1 The Theory and Practice of Origami Erik Demaine M.I.T.

2 Origami  Perhaps as old as paper itself (105 AD)  Revolution in complex origami design over past ~25 years Satoshi Kamiya

3 Joel Cooper Brian Chan Goran Konjevod Origami USA Convention 2009

4 Folding Anything (in Theory) [Demaine, Demaine, Mitchell 1999]  Theorem: Any 2D or 3D shape can be folded from a square of paper

5 Tree Method of Origami Design [Fujimoto, Kamiya, Kawahata, Lang, Maekawa, Meguro, Yoshino] [Lang, Demaine, Demaine 2006–2008]

6 Tomohiro Tachi  Algorithm to fold any polyhedral surface Tomohiro Tachi Origamizer [Tachi 2006; Demaine & Tachi 2009]

7 “Self-Folding” Origami “hyperbolic paraboloid”

8 Kenny Thermal origami [Cheung 2008]

9 Metal Folding Metal folding Demaine, Demaine, Tachi, 2008

10  Fold polygons at corners instead of lines Hinged Dissection [first used by Kelland 1864] [Dudeney 1902]

11 Hinged Dissection Universality [Abbott, Abel, Charlton, Demaine, Demaine, Kominers 2008]  Theorem: For any finite set of polygons of equal area, there is a hinged dissection that can fold into any of the polygons, continuously without self-intersection ▪Generalizes to 3D

12 Right-Angle Tetrahedra [Millibiology project: MIT, Harvard, Makani]

13 Millibiology Project [MIT CBA]

14 Protein Folding ribosome

15 The Theory and Practice of Origami Erik Demaine M.I.T.


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