Bridges 2021 cover
Bridges 2021

Online
1–3 August 2021
More information

Front matter
The Editors
Regular Papers
Creativity and Rigor: A Bead Crochet Mathematics Course
Eve Torrence
Pages 1–6
The Joy of Polar Zonohedra
George Hart
Pages 7–14
Structured Knight's Tours
Robert Bosch and Zejian Huang
Pages 15–22
Animated Map Colourings of Hinged Squares
Craig S. Kaplan
Pages 23–30
Beyond the Great 96
John Berglund and Craig S. Kaplan
Pages 31–38
Mathematics in the Poetry of Sefer Yetzirah
Sarah Glaz
Pages 39–46
The Flat Klein Bottle Rendered in Curved-Crease Origami
Stepan Paul
Pages 47–54
Logarithmic Spiral Tilings of Triangles
Robert Fathauer
Pages 55–62
Polyhedral-Edge Knots
Carlo H. Séquin
Pages 63–70
Wallpaper Patterns from Looping Strands: The Layer Groups
Frank Farris
Pages 71–78
Dancing Topologically
Karl Schaffer
Pages 79–86
Categorizing Celtic Knot Designs
Roger Antonsen and Laura Taalman
Pages 87–94
Approximating Logarithmic Spirals by Quarter Circles
Ulrich Reitebuch, Martin Skrodzki, and Konrad Polthier
Pages 95–102
Invisible Forces: Baskets without Corners
Paul Gailiunas
Pages 103–110
Pretty 3D Polygons: Exploration and Proofs
Melissa van Veenendaal and Tom Verhoeff
Pages 111–118
Conjunction-forms: Three-Circle Combinations
James Mai
Pages 119–126
The Short Tiles Category
Lars Eriksson
Pages 127–134
Quadrilateral Spiral Tilings and Escheresque Art
Chirag Mehta
Pages 135–140
Real-time Ornamental Calligraphic Pens
Lena Polke and Jürgen Richter-Gebert
Pages 141–148
String Mechanism for Polyhedral Pop-up Card Design
Lauren Li
Pages 149–156
Space-Filling, Self-Similar Curves of Regular Pentagons, Heptagons and Other n-Gons
Stefan Pautze
Pages 157–164
Markov Chains and Egyptian Tombs: Generating “Egyptian” Tablet Weaving Designs Using Mean-Reverting Processes
Joshua Holden
Pages 165–172
Folding Functions II: Methods for Mathematically Manipulating Miura-ori Models
Uyen Nguyen
Pages 173–180
A Perpetual Calendar Made of LEGO® Parts
Chamberlain Fong
Pages 181–188
Designing Fractal Curves with Five-Fold Rotational Symmetry Using the Complex Number Golden Ratio
Jeffrey Ventrella
Pages 189–196
Iterated Averaging of Polygon Vertices
Kerry Mitchell
Pages 197–204
Sculptable Kaleidocycles: Visualizing Variable Cell Geometry
Vishal Chandra, Aren Martinian, and Peter Atlas
Pages 205–210
Euler’s polyhedron formula for tessellations
Dirk Huylebrouck
Pages 211–216
How a Willow Tube Turns Into a Torus
Hedy Hempe
Pages 217–224
Continuous Variations of the Waterbomb Base Tessellation
Helena Verrill
Pages 225–232
Ability to Measure and Count in Aleksis Kivi’s Seven Brothers
Tiina Katriina Kukkonen
Pages 233–240
Orange Peel Optimization
David Swart
Pages 241–248
Short Papers
Bending Seams - How to Create Couture Curves
Lewis Campbell, Kelly Delp, and Elisabetta Matsumoto
Pages 249–252
One-color Frieze Patterns in Friendship Bracelets: A Cross-Cultural Comparison
Lorelei Koss
Pages 253–256
The Tower of Ha(rmo)noi
Donald Spector
Pages 257–260
Variations of the Goldberg Ground and Other Canonic Adventures
Rachel Hall
Pages 261–264
Circle Deformation in Hacon’s Sphere Eversion
Yongheng Zhang
Pages 265–268
A Papercrafted Pattern on a Triply Periodic Polyhedron
Douglas Dunham and Lisa Shier
Pages 269–272
Towards Flying Through Modular Forms
David Lowry-Duda and Adam Sakareassen
Pages 273–276
Using Inflation to Lay a P3 Tiling in Two Dimensions and Three Dimensions
Debora Coombs
Pages 277–280
Approximating Edge-Touching Regular Polygon Patterns Using Crocheted Bead Lace
Rashmi Sunder-Raj
Pages 281–284
Do the Angles of a Triangle Add up to 180°? - Introducing Non-Euclidean Geometry
Hanne Kekkonen
Pages 285–288
Quasicrystalline Ceramics
Rima Ajlouni
Pages 289–292
Sculpture Design with Hexastix and Related Non-Intersecting Cylinder Packings
Anduriel Widmark
Pages 293–296
An Architectural Game of Squares and Conic Sections
Vladmir Sicca
Pages 297–300
Generative Sculpture by Evolutionary Design
Leo Bleicher
Pages 301–304
Lifelines: A Series of Artworks that Invite Contemplation on the Human Condition
David Reimann
Pages 305–308
Polyhedral Approximations of the Sphere in LEGO®
Jin Yamauchi and Chamberlain Fong
Pages 309–312
Doubling the Cube—Revisited
Jo Niemeyer and Rabe von Randow
Pages 313–314
Quasiperiodic Tilings with 12-Fold Rotational Symmetry Made of Squares, Equilateral Triangles, and Rhombi
Peter Stampfli and Theo Schaad
Pages 315–318
Infinite Quasi-Periodic Origami Tilings
Gabriel Perko-Engel and Carlo H. Séquin
Pages 319–322
BenDit – A Polyhedral Sculpture from Bent Wood
Daniel Lordick
Pages 323–326
Crocheting an Isomorphism Between the Automorphism Groups of the Klein Quartic and Fano Plane
Shintaro Fushida-Hardy
Pages 327–330
Constructing Bead Models of Smoothly Varying Carbon Nanotori with Constant Radii and Related Intersecting Structures
Hou-Hsun Ho, Chern Chuang, and Bih-Yaw Jin
Pages 331–334
Quadruple Tetrahedron Surface Tilings
Wei-Chun Chang and Chih-Hung Yen
Pages 335–338
A Periodic Sponge Surface Based on Truncated Octahedra
Yuki Kobayashi, Seiya Kirihara, and Chie Nara
Pages 339–342
Mathematical Dance Performance “A Point Has No Parts”
Natalija Budinski, Jelena Joksimović, Danijela Vučićević, and Zsolt Lavicza
Pages 343–346
Ygrography, Creating Artworks by means of Hele-Shaw’s Fluxes
Amada Navarrete and Regina Bittencourt
Pages 347–350
Constructivist Art based on the Mandelbrot Set
Loe Feijs
Pages 351–354
Devising a ‘Purist Knitting Aesthetic’ Six-Colored Möbius Band
Katherine Seaton
Pages 355–358
Computational Making via Bidirectional Parametric Modeling
Chris Johnson and Ian McCormack
Pages 359–362
A Geometer Quite Acrimonious - a Limerick
Bjoern Muetzel and Nazarré Merchant
Pages 363–366
Mathematical Monuments in Finland
Osmo Pekonen, Kristóf Fenyvesi, and Johan Stén
Pages 367–370
Presenting Mathematical Poetry Across Disciplinary Lines
Larry Lesser
Pages 371–374
The Art of the Celt
Kenneth Brecher
Pages 375–378
Genesis of an Interesting Zometool-related Lattice Geometry
Samuel Verbiese
Pages 379–382
Workshop Papers
Exploring the Wurzelschnecke: Learning Geometry, Number and Design with the Spiral of Theodorus
Susan Gerofsky, S. Brackett Robertson, and Veselin Jungic
Pages 383–390
Weaving Windmill Loops to Create Surfaces with Varying Curvature
Stephanie Bunn, Mary Crabb, Hilary Burns, Geraldine Jones, Charlotte Megroureche, and Ricardo Nemirovsky
Pages 391–396
Using Archimedean Spirals to Explore Fractions
Stephen Erfle
Pages 397–402
Bridging Aesthetics and Mathematics Education Using Photography
Antje Meier
Pages 403–408
aMazing Mathematical 3D Modeling
Eva Ulbrich, Shereen Elbedewy, Julia Handl, and Zsolt Lavicza
Pages 409–412