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 e-mail

Next up

“Airy Predictions: The Mathematics of Air Quality and Weather Forecasts”

with Kristin Lauter

Wednesday, September 2 at 4:00 pm ET

The mathematics of weather prediction has a long history, using quantitative models of the atmosphere and initial measurements of temperature, humidity, wind, pressure, and density to generate forecasts.  Air quality in cities is also influenced by atmospheric conditions, so this type of modeling takes on an even greater importance.  Join Kristin Lauter of Microsoft Research as she shares her work on Project Eclipse, a dense sensor network being deployed in cities to help model air quality, and explains how math is used not just to forecast the weather but in an effort to improve our public health.

Special introduction by Jennifer Chayes, UC Berkeley Associate Provost of the Division of Computing, Data Science, and Society, and Dean of the School of Information.

This is a live-streamed event.  Occasional video recordings are made available for a fee at

Register for the 4:00 pm session
Register for the 7:00 pm session

Photography notice

By registering for a Math Encounters presentation, you agree 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 1-2 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!

Previous Math Encounters presentations

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.