Special Announcement

Because the “The Pleasure of Puzzles” special lecture  is interactive and Covid may limit  audience numbers, this May 12 lecture is once again postponed.  When a new date is arranged it will be announced on this website and through the BALL newsletter.  Subscribe to BALL News at the  right side of this webpage if you are not already receiving it.

BALL's 2022 Annual General Meeting will be via Zoom only, 19 May 9:30 am. Click here for details.