Mathematical origami models created by mathematician Thomas C. Hull.
Tom Hull at work, Joint Mathematics Meetings, New Orleans, 2007.
For more mathematical origami, see "Pleated Cone" and "Folding a Klein Bottle."
Photos by I. Peterson
November 30, 2015
November 29, 2015
Ordovician Catenoids
Ordovician Pore by Tony Cragg features objects that look like catenoids. Walker Art Center, Minneapolis, Minnesota.
Photos by I. Peterson
November 28, 2015
Cracked Globe
Globe inscribed with lines of latitude and longitude, Alumni Plaza, East Tennessee State University, Johnson City, Tennessee.
Photo by I. Peterson
November 27, 2015
Ancient Floor Tile
Maze-like pattern on a portion of a type of tile used in China about 2,000 years ago. Royal Ontario Museum, Toronto.
Photos by I. Peterson
November 26, 2015
Meshed Column
Untitled sculpture by Linda Howard, University of North Florida, Jacksonville, Florida.
For other sculptures by Linda Howard, see "Geometreks in New Orleans" and "Centerpeace."
For another example of public art at the University of North Florida, see "A Flight of Tetrahedra."
Photos by I. Peterson
November 25, 2015
November 24, 2015
November 23, 2015
Moebius Inclusion
The logo for the Inclusion Center for Community and Justice, housed at Westminster College, Salt Lake City, Utah, features a Moebius strip.
For other sightings of Moebius strips, see "Topological Sculpture at Queen's," "Endless Train Track," "Endless Ribbon," "Mobius in Toronto," and "Recycling Arrows."
Photo by I. Peterson
November 22, 2015
Triangulated Spiral
Triangulated spiral sculpture, Sixteen Billion Years by Pat Monk. American Center for Physics, College Park, Maryland.
Photo by I. Peterson
November 21, 2015
Polar Skylight
The glass dome of the Galleria Vittorio Emanuele II in Milan, Italy, looks like polar graph paper.
Photo by I. Peterson
November 20, 2015
Coxeter's Piano
This piano, now (and still used) at the Fields Institute for Research in Mathematical Sciences in Toronto, belonged to famed geometer H.S.M. "Donald" Coxeter (1907-2003). The piano was given by Coxeter's father to his mother at the time of Coxeter's birth and remained with him for his entire life. He composed music in his youth and was an accomplished pianist by age 10.
The piano stands beneath a magnificent spiral staircase at the Fields Institute.
For other features of the Fields Institute, see "Mobile of the Fourth Dimension" and "Borromean Triangles."
Photos by I. Peterson
November 19, 2015
Organ Pipe Distributions
The physics of sound production in organ pipes to generate musical tones leads to a distribution of pipes of various sizes, which can be arranged into aesthetically pleasing arrays. Wicks Organ, Munsey Memorial United Methodist Church, Johnson City, Tennessee, 2008.
See also "Three Bells."
Photos by I. Peterson
November 18, 2015
Anamorphic Stop
The letters of the word "stop," painted near a street corner, are stretched vertically so that the sign would appear "normal" from a driver's viewpoint.
Photos by I. Peterson
November 17, 2015
Chiralized Tetrahedron
Eltanin by Bathsheba L. Grossman, Laboratory for Research on the Structure of Matter, University of Pennsylvania, Philadelphia. The sculpture has the symmetry of a chiralized tetrahedron.
Photo by I. Peterson
November 16, 2015
November 15, 2015
November 14, 2015
Dome Lights
Lines, arcs, and dome lights, designed by Frank Lloyd Wright, Monona Terrace, Madison, Wisconsin.
For more from Madison, Wisconsin, see "Geometreks in Madison I: Van Vleck Hall."
Photos by I. Peterson
November 13, 2015
November 12, 2015
Lines and Branches
Fractal-like tree branches and puffy clouds contrast with power lines, Palo Alto, California.
Photos by I. Peterson
November 11, 2015
Pythagorean Hints
Hints of a visual proof of the Pythagorean theorem in a pattern on a glass panel? Friendship Heights, Maryland.
See also "Tiling by Isosceles Right Triangles."
Photos by I. Peterson
November 10, 2015
November 9, 2015
Gyrangle
Gyrangle (detail), designed by George W. Hart, on display at Towson University, 2012.
For another gyroid surface, see "Gyroid Climber."
Photos by I. Peterson
November 8, 2015
Ancient Mosaic Design
Geometric design on mosaic panel, 5th century A.D., Antioch, Baltimore Museum of Art.
For other objects and artworks at the Baltimore Museum of Art, see "Solomon's Knot" and "Endless Ribbon."
Photo by I. Peterson
November 7, 2015
Pencil Structure
Geometrical structure consisting of four intersecting hexagonal tubes, created from 148 pencils by members of workshops at the American Institute of Mathematics.
This pencil structure (left) is a variant of the 72 Pencils sculpture created by George W. Hart.
Instructions for creating a geometric structure from 72 pencils.
More from the American Institute of Mathematics at "AIM Mural."
Photos by I. Peterson
November 6, 2015
November 5, 2015
November 4, 2015
November 3, 2015
Avalanche Layering
A mixture of black and white grains arranges itself into distinct layers in the "Avalanche" exhibit at the Exploratorium, San Francisco.
For more from the Exploratorium, see "Riding on Square Wheels," "Counting on Success," "Tide Cycles," "Pinball Chaos," "Restroom Illusions," and "Gyroid Climber," and "Pulse Spiral."
Photos by I. Peterson
November 2, 2015
Open Boxes
Arrangement of open boxes representing collaboration, Carnegie Mellon University, Pittsburgh, Pennsylvania, 2010.
"Collaboration, mentoring, creativity" represented in sets of open boxes.
Photos by I. Peterson