October 31, 2015

Stacked Glass


Presence of Seven in the Light of Movement (detail showing stacked glass plates) by Danny Lane, Allegheny College, Meadville, Pennsylvania.



Photos by I. Peterson

October 30, 2015

Topological Sculpture at Queen's




Five Sculptures on Topological Themes, 1972 by Alan Dickson, Queen's University, Kingston, Ontario.


Another topological sculpture inspired by the Moebius strip.


Topological sculpture sometimes described as "the donut on the pole."

Photos by I. Peterson

October 29, 2015

Plane Trees of Berkeley


Gnarly London plane trees, after pruning, Campanile Esplanade, University of California, Berkeley.



Sather Tower (Campanile), at dusk.


Photos by I. Peterson

October 28, 2015

Skyscraper Reflection


Reflected skyscraper, Baltimore, Maryland.

Photo by I. Peterson

October 27, 2015

Parabolic Mist Tree




The straight lines of the sculpture define a parabolic curve.

Photos by I. Peterson

October 26, 2015

Reduced Speed


Chevy Chase, Maryland.

Photo by I. Peterson

October 24, 2015

October 23, 2015

Geodesic Pentagon


Pentagon of an attempted geodesic structure, Hyde Park, Austin, Texas.




For more on geodesic domes, see "Hexagons, Pentagons, and Geodesic Domes" and "Norwegian Sol."

Photos by I. Peterson

October 22, 2015

Punch Card Windows


The dark, narrow windows that punctuate the facade of Paul Rood Hall at Western Michigan University in Kalamazoo appear randomly distributed. They also make the facade resemble an IBM punch card. Perhaps these windows are not randomly placed but encode a secret message.


Built in 1971, Rood Hall houses classrooms, laboratories, a geology museum, a computer center, and a particle accelerator facility.

Photos by I. Peterson

October 21, 2015

Edison's Lab


Edison's laboratory, Thomas Edison National Historical Park, West Orange, New Jersey, 1983.



Photos by I. Peterson

October 20, 2015

Chicago Tree


Tree and skyscraper, ever upward, Chicago, 2009.

Photo by I. Peterson

October 19, 2015

Parallelepiped Skeletons


Rectangular parallelepipeds, decoration, AT&T Hotel and Conference Center at the University of Texas, Austin.

Photo by I. Peterson

October 17, 2015

Toronto Triad


Triad by Ted Bieler, University Avenue, Toronto.


Photos by I. Peterson

October 16, 2015

Integral House


Curves are a central feature of Integral House, built for mathematician and textbook author James Stewart (1941-2014), Toronto, 2009.


View of ravine-facing exterior.


Expansive interior space that could be used for concerts.


Custom lighting fixtures.


Pillars with a curvy cross section.


Wavy door handle.


James Stewart in his home office, 2009, when Integral House was nearly complete.

Photos by I. Peterson

October 15, 2015

Bead Creatures





For other creations based on tilings of the hyperbolic plane, see "Hyperbolic Quilt."

Photos by I. Peterson

October 14, 2015

Square Root of Pi


Symbols for the square root of pi are among the adornments on a stainless steel trash container, Euclid Corridor, Cleveland, 2011. "Visual trash" artwork, inspired by a bad computer printout, by Mark Howard.


For other appearances of pi, see "Pi Doors" and "Pi Places."

Photos by I. Peterson

October 13, 2015

Beauty Saloon


Does that trim come with a brew? Tbilisi, Georgia, 2012.

For other scenes from the Republic of Georgia, see "Three Bells," "Circling the Square," "Jagged Crack," "Market Packing," and "A Normal Haystack."

Photo by I. Peterson

October 12, 2015

Pine Cone Scales


Overlapping scales of a pine cone produce an intriguing spiral pattern.

Photo by I. Peterson

October 11, 2015

Fall Maple


Maple leaf in autumn.

Photo by I. Peterson

October 10, 2015

Seattle Arches


Space Needle, framed by graceful arches, Seattle.


Photos by I. Peterson