Online registration is closed for this event. If available, tickets on the day of the event may incur an additional charge.

Living in a three-dimensional environment, we’re all very good at visualizing two- and three-dimensional objects. But how can we understand four-dimensional objects? Join mathematician Henry Segerman as he casts light on the fourth dimension, using 3D-printed shadows to squish four-dimensional shapes into our three-dimensional world. Along the way, explore fantastical sculptures, intriguing puzzles, and virtual reality experiences that come from thinking about these extra-dimensional shadows.

Special introduction by Patrick Honner, recipient of the 2013 Presidential Award for Excellence in Mathematics and Science Teaching.

Click here to register for the 7:00 pm presentation instead.

Math Encounters is a public presentation series celebrating the spectacular world of mathematics and presented by the Simons Foundation and the National Museum of Mathematics.

For further information, call the National Museum of Mathematics at (212) 542-0566 or e-mail

Please note, this presentation is designed to be accessible and engaging to a general audience. As a rule of thumb, it would be best enjoyed by participants age 12 and up.

Please check our online shop for books by Math Encounters presenters.

October 5th, 2016 from  4:00 pm to  5:30 pm
National Museum of Mathematics
11 East 26th Street
New York, NY 10010
United States
Phone: 212-542-0566