| Year | Session | Title | Moderator(s) |
| 1994 | F | Chaos & Complexity | Virginia Senders |
| 1995 | F | Work and Workings of Computers | David Navon and Harley Unger |
| 1999 | F | Probability and chance | Arthur Quinton |
| 2000 | S | Superstrings and Modern Physics | David Navon and John Armstrong |
| 2001 | S | Computer Age: Blessing or Curse? | Hy Edelstein |
| 2002 | S | Fun with Numbers | Hal Stubbs |
| 2003 | F | Computer Usage at an Intermediate Level | John Armstrong and Hy Edelstein |
| 2004 | F | Galileo and the Birth of Modern Science | Leo Sartori |
| 2005 | F | The 30 Years That Shook Physics | Jim Scott |
| 2005 | F | The Arithmetic of Symmetry | John Armstrong |
| 2007 | F | The Elements: Facts, Fables, and Science | Jim Scott |
| 2008 | S | Efficient Energy Use | Larry Ambs and Anne McIntosh |
| 2008 | F | The Age of Newton | Leo Sartori |
| 2009 | S | Time, Clocks, and Calendars | Beverly von Kries and John Armstrong |
| 2010 | S | The Joy of the PC Computer | Philippe Meyer |
| 2010 | S | Risky Business: Dealing with Risk | John Armstrong and Hy Edelstein |
| 2012 | S | Highlights of Computer History | John Armstrong |