Math Club Constructing “Menger Sponge” at the Library

256px-mengerova_houbaDuring fall quarter, the DePaul Mathematics Club will be constructing a “Menger Sponge” on the first floor of the John T. Richardson Library.

A Menger Sponge is a fractal named after mathematician Karl Menger, a long-time faculty member at the Illinois Institute of Technology, that is distinguished by having “zero volume and infinite surface area.” The DePaul Mathematics Club will be constructing a large-scale model of the Sponge using ordinary business cards held together with a simple origami fold. When complete, the sculpture will have used about 35,000 business cards. It will be nearly five feet tall and weigh about 120 pounds.

The DePaul Mathematics Club provides activities and programs to benefit students of mathematics at all levels, and hosts talks by faculty and students on mathematical topics outside the classroom.


Image credit: Lukax (Own work) [GFDL ( or CC BY 3.0 (], via Wikimedia Commons

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