Math Encounters

Now offering FREE, online sessions!

Math Encounters is MoMath’s popular free public presentation series celebrating the spectacular world of mathematics, produced with support from the Simons Foundation.  For further information, call the National Museum of Mathematics at 212-542-0566 or email

Next up

Math Encounters:

“Navigating with Golden Rotations”

featuring Peter Sarnak

Wednesday, November 3
4:00 pm and 7:00 pm ET (New York)


Join Princeton University Professor of Mathematics Peter Sarnak in an exploration of some of the subtle features enjoyed by rotations in two and three dimensional space, from paradoxical decompositions to optimally efficient universal quantum gates.  Special introduction by Dr. Terrence Blackman, Associate Professor of Mathematics, Medgar Evers College, CUNY.

This event will be hosted in-person at MoMath (11 E 26th Street in Manhattan) and broadcasted online.

Photography notice

By registering for a Math Encounters presentation, you acknowledge that you may be photographed or videotaped by Museum staff and associates.

Books by the speakers

We are happy to offer books edited or authored by Math Encounters speakers through our online shop.

Math Encounters available on YouTube and DVD

Math Encounters presentations are generally posted to our YouTube page within one to two months of filming.  Due to copyright issues, some presentations may not be reproduced on the internet.  Presentations posted online are also available for purchase via our online shop.  Click here to purchase yours today!

Presented by the Simons Foundation and the National Museum of Mathematics

Please note that all children under the age of 16 must be accompanied by an adult.