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

Math Encounters:
“Shockwaves: the Mathematics of Tears of Wine”
with Andrea Bertozzi

Special introduction by
Krešimir Penavić of Clai Winery

Wednesday, July 1 at 4:00 pm EDT (New York)

Sit back and relax with a glass of wine (alcoholic or not), and learn something new as Andrea Bertozzi illustrates the mathematics behind the little shock waves going through your vessel of vino, creating a weepy pattern of “wine tears” on the inside of your glass!

For the interactive portion of the presentation, you may wish to have the following (optional) materials handy:

  • A wine glass, spirit glass (ideally, martini), or glass pan
  • Port or higher-alcohol red wine or dark-colored liquor (ideally at 75 to 80 degrees Fahrenheit); or, cooking oil
  • A white or light-colored table or tablecloth, or white piece of paper on a table
  • A flashlight (for example, your phone's flashlight)
  • Something to cover the glass

Or, simply sip your beverage of choice and listen to the presentation.

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

This page is for the 4:00 pm EDT (New York) session.  Click here to register for the 7:00 pm EDT (New York) session instead.

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

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

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

July 1st, 2020 from  4:00 pm to  5:30 pm
MoMath Online
United States