tag:blogger.com,1999:blog-362699732019-05-23T06:00:23.364-05:00The Mathematical TouristMath Touristhttp://www.blogger.com/profile/00014397210725962876noreply@blogger.comBlogger1477125tag:blogger.com,1999:blog-36269973.post-80378120971966281692019-05-23T06:00:00.000-05:002019-05-23T06:00:23.294-05:00Squared
Embassy of the People's Republic of China, designed by I.M. Pei and Associates. Washington, D.C., 2019.
See also "I. M. Pei (1917-2019)."
Photo by I. Peterson
Math Touristhttp://www.blogger.com/profile/00014397210725962876noreply@blogger.com0tag:blogger.com,1999:blog-36269973.post-23514507462435562862019-05-21T06:00:00.000-05:002019-05-21T06:00:01.502-05:00Art of the Tetrahedron RevisitedThe tetrahedron is the simplest of all polyhedra. Any four points in space that are not all on the same plane mark the corners of four triangles. The triangles in turn are the faces of a tetrahedron.
For more than 30 years, Arthur Silverman (1923-2018) of New Orleans created artworks arising out of explorations of this angular form. "The tetrahedron is very exciting visually," Silverman Math Touristhttp://www.blogger.com/profile/00014397210725962876noreply@blogger.com0tag:blogger.com,1999:blog-36269973.post-56247128742991279432019-05-20T12:16:00.000-05:002019-05-22T07:04:12.070-05:00Arthur Silverman (1923-2018)Arthur Silverman, who turned to sculpture after a lengthy career as a urologist in New Orleans, Louisiana, died September 24, 2018. I wrote about his use of the tetrahedron, in myriad forms, as a basis for his artworks.
In this 2007 photograph, Arthur Silverman stands with one of his tetrahedron-based sculptures. Both bent columns are identical but look quite different from different Math Touristhttp://www.blogger.com/profile/00014397210725962876noreply@blogger.com0tag:blogger.com,1999:blog-36269973.post-61027599713621455502019-05-17T11:17:00.000-05:002019-05-17T11:17:47.631-05:00I. M. Pei (1917-2019)Master architect I. M. Pei died on May 16, 2019. Among his many designs was the East Building of the National Gallery of Art in Washington, D.C.
The National Gallery of Art's East Building, designed by I.M. Pei, as seen from the rooftop of the Embassy of Canada in Washington, D.C. Opened to the public in 1978, the East Building is an eye-teasing festival of vast walls, sharp edges, odd Math Touristhttp://www.blogger.com/profile/00014397210725962876noreply@blogger.com0tag:blogger.com,1999:blog-36269973.post-11875682527072869072019-05-12T06:00:00.000-05:002019-05-12T06:00:00.731-05:00Together
Together by Reza Sarhangi (1952-2016). Math-Art Exhibit, National Math Festival, Washington, D.C., 2019.
See also "Reza Sarhangi (1952-2016)."
Photo by I. Peterson
Math Touristhttp://www.blogger.com/profile/00014397210725962876noreply@blogger.com0tag:blogger.com,1999:blog-36269973.post-41337850860804898112019-05-11T06:00:00.000-05:002019-05-11T06:00:03.271-05:00Cyclide
Cyclides by Francesco de Corite. Math-Art Exhibit, National Math Festival, Washington, D.C., 2019.
Photo by I. Peterson
Math Touristhttp://www.blogger.com/profile/00014397210725962876noreply@blogger.com0tag:blogger.com,1999:blog-36269973.post-66316724604975480992019-05-10T06:00:00.000-05:002019-05-10T06:00:06.105-05:00Lemon Twist
Lemon Twist by Rick Weber. Math-Art Exhibit, National Math Festival, Washington, D.C., 2019.
Photo by I. Peterson
Math Touristhttp://www.blogger.com/profile/00014397210725962876noreply@blogger.com0tag:blogger.com,1999:blog-36269973.post-41621784639921339952019-05-09T06:00:00.000-05:002019-05-09T06:00:07.739-05:00Metamorphosis
Islamic Metamorphosis #2 by Craig Kaplan. Math-Art Exhibit, National Math Festival, Washington, D.C., 2019.
Photo by I. Peterson
Math Touristhttp://www.blogger.com/profile/00014397210725962876noreply@blogger.com0tag:blogger.com,1999:blog-36269973.post-25047659934899410202019-05-08T06:00:00.000-05:002019-05-08T06:00:12.233-05:00Embrace
Embrace by Robert Bosch. Math-Art Exhibit, National Math Festival, Washington, D.C., 2019.
See also "Moebius Meander."
Photo by I. Peterson
Math Touristhttp://www.blogger.com/profile/00014397210725962876noreply@blogger.com0tag:blogger.com,1999:blog-36269973.post-17766708802238750002019-05-07T06:00:00.000-05:002019-05-07T06:00:02.435-05:00Polar Light
Polar Light 12-Fold by Chris Palmer. Math-Art Exhibit, National Math Festival, Washington, D.C., 2019.
Photo by I. Peterson
Math Touristhttp://www.blogger.com/profile/00014397210725962876noreply@blogger.com0tag:blogger.com,1999:blog-36269973.post-68911093744263313242019-05-06T06:00:00.000-05:002019-05-06T06:00:05.092-05:00Temari Spherical Symmetries
Spherical Symmetries in Temari by Carolyn Yackel. Math-Art Exhibit, National Math Festival, Washington, D.C., 2019.
See also "Temari Symmetry," "Temari Ball Symmetry," and "Spherical Symmetry in Temari."
Photos by I. PetersonMath Touristhttp://www.blogger.com/profile/00014397210725962876noreply@blogger.com0tag:blogger.com,1999:blog-36269973.post-44951586669415235562019-05-05T10:41:00.000-05:002019-05-05T10:41:00.579-05:00Mutual Support
Mutual Support by George Hart. Math-Art Exhibit, National Math Festival, Washington, D.C., 2019.
See also "Autumn Star" and "Gyrangle."
Photos by I. Peterson
Math Touristhttp://www.blogger.com/profile/00014397210725962876noreply@blogger.com0tag:blogger.com,1999:blog-36269973.post-4217326950529409602019-04-17T11:42:00.000-05:002019-04-17T11:42:44.569-05:00Getting ClobberedClobber is a two-person game that's easy to learn and fun to play and, for the mathematically inclined, rife with analytical possibility.
The "standard" game is played on a rectangular grid of squares--say, a portion of a checkerboard. One player governs the movement of white pieces, or stones, and the other player moves black stones. Initially, each square is occupied by a white or black stone,Math Touristhttp://www.blogger.com/profile/00014397210725962876noreply@blogger.com0tag:blogger.com,1999:blog-36269973.post-66574224600859946882019-04-16T06:00:00.000-05:002019-04-17T07:59:07.955-05:00Elwyn Berlekamp (1940-2019)Elwyn R. Berlekamp, who died on April 9, 2019, was an accomplished computer scientist and an expert in combinatorial game theory. In 2000, I wrote about his book on the seemingly simple game of Dots and Boxes.
Dots and Boxes
The familiar pencil-and-paper game of Dots and Boxes sounds exceedingly simple.
Given a square or rectangular array of dots, two players take turns joining two adjacent Math Touristhttp://www.blogger.com/profile/00014397210725962876noreply@blogger.com0tag:blogger.com,1999:blog-36269973.post-31703866386364140342019-04-15T06:00:00.000-05:002019-04-15T06:00:12.091-05:00Hyperbolic Five
Dutch graphic artist M.C. Escher (1898-1972) devised many highly original schemes in his attempts to capture the concept of infinity visually. One strategy he often employed was to create repeating patterns of interlocking figures. However, although he could imagine how such arrays extended to infinity, the actual pattern he drew represented only a fragment of an infinite expanse.
Math Touristhttp://www.blogger.com/profile/00014397210725962876noreply@blogger.com0tag:blogger.com,1999:blog-36269973.post-21855999840424320842019-04-14T09:22:00.000-05:002019-04-15T08:14:20.213-05:00Vonda McIntyre (1948-2019)Vonda N. McIntyre, who died on April 1, 2019, was a noted author of science fiction. She also had a fascinating hobby: stringing beads into intricate structures, some with a mathematical basis. I wrote about her hobby in 2004.
Anatomy of a Bead Creature
Vonda N. McIntyre is best known as a writer of science fiction. Her 1997 book, The Moon and the Sun, won the Nebula Award for best novel. She Math Touristhttp://www.blogger.com/profile/00014397210725962876noreply@blogger.com0tag:blogger.com,1999:blog-36269973.post-56721439652386449442019-03-14T06:00:00.000-05:002019-03-14T06:00:01.037-05:00Pi Path
10,001 Digits of Pi by John Snow. Mathematical Art Gallery, Joint Mathematics Meetings, Baltimore, Maryland, 2019.
Photo by I. Peterson
Math Touristhttp://www.blogger.com/profile/00014397210725962876noreply@blogger.com0tag:blogger.com,1999:blog-36269973.post-72218481137943137852019-03-01T06:00:00.000-05:002019-03-01T06:00:05.205-05:00Moebius Mentions IVFrom The Shakespeare Requirement by Julie Schumacher:
"Janet had endured, during the remainder of her father's visit, a Moebius strip of parental observations: he never understood why Jan-Jan had married that loser; she was obviously better off without him; her ex was a self-satisfied clod and a jackass; and who was that sexpot he was walking with?"
See also "Moebius Mentions I, II, and III."Math Touristhttp://www.blogger.com/profile/00014397210725962876noreply@blogger.com0tag:blogger.com,1999:blog-36269973.post-48186503323761989192019-02-28T06:00:00.000-05:002019-02-28T06:00:05.519-05:00Roman Surface
Roman Surface by Mikael Vejdemo-Johansson. Mathematical Art Gallery, Joint Mathematics Meetings, Baltimore, Maryland, 2019.
Photos by I. Peterson
Math Touristhttp://www.blogger.com/profile/00014397210725962876noreply@blogger.com0tag:blogger.com,1999:blog-36269973.post-73709656504529834112019-02-27T06:00:00.000-05:002019-02-27T06:00:00.163-05:00Borromean Twists
3-Level Borromean Soap Film, Bordered by Three Intertwined Torus Knots by Carlo Sequin. Mathematical Art Gallery, Joint Mathematics Meetings, Baltimore, Maryland, 2019.
See also "Borromean Soap Film" and "Trefoil Klein-Knottle."
Photo by I. Peterson
Math Touristhttp://www.blogger.com/profile/00014397210725962876noreply@blogger.com0tag:blogger.com,1999:blog-36269973.post-68153259666293545332019-02-26T06:00:00.000-05:002019-02-26T06:00:07.043-05:00Origami Wiggle
Wiggle by Uyen Nguyen. Mathematical Art Gallery, Joint Mathematics Meetings, Baltimore, Maryland, 2019.
Photo by I. Peterson
Math Touristhttp://www.blogger.com/profile/00014397210725962876noreply@blogger.com0tag:blogger.com,1999:blog-36269973.post-15560021418181240852019-02-25T06:00:00.000-05:002019-02-25T06:00:01.400-05:00Tetraknot
940 Tetraknot by Anduriel Widmark. Mathematical Art Gallery, Joint Mathematics Meetings, Baltimore, Maryland, 2019.
Photo by I. Peterson
Math Touristhttp://www.blogger.com/profile/00014397210725962876noreply@blogger.com0tag:blogger.com,1999:blog-36269973.post-47333509466982660622019-02-24T06:00:00.000-05:002019-02-24T06:00:00.321-05:00Circle Bundle Klein Bottle
Circle Bundle Klein Bottle by Mikael Vejdemo-Johansson. Mathematical Art Gallery, Joint Mathematics Meetings, Baltimore, Maryland, 2019.
Photo by I. Peterson
Math Touristhttp://www.blogger.com/profile/00014397210725962876noreply@blogger.com0tag:blogger.com,1999:blog-36269973.post-34345015928210210632019-02-23T06:00:00.000-05:002019-02-23T06:00:10.335-05:00Pentagonal Honeycomb
Pentagonal Honeycomb (detail) by Uyen Nguyen. Mathematical Art Gallery, Joint Mathematics Meetings, Baltimore, Maryland, 2019.
Pentagonal Honeycomb
Photo by I. Peterson
Math Touristhttp://www.blogger.com/profile/00014397210725962876noreply@blogger.com0tag:blogger.com,1999:blog-36269973.post-84109797904108691252019-02-22T06:00:00.000-05:002019-02-22T06:00:02.784-05:00Fermat Spiral Mandala
Fermat Spiral Mandala by Robert Krawczyk. Mathematical Art Gallery, Joint Mathematics Meetings, Baltimore, Maryland, 2019.
Photo by I. Peterson
Math Touristhttp://www.blogger.com/profile/00014397210725962876noreply@blogger.com0