da Vinci Days - July 21-22, 2012
volunteers donate their time and creativity to an activity booth at the
3-day da Vinci Days celebration in Corvallis each year. The
O4SR exhibit is filled with mind streatching activities created by O4SR
members. This is O4SR's premier annual
public event. It's fun, educational, and a great way to meet other O4SR
Our booth is very popular, and our "blue ribbon"
volunteers stay busy running activities such as the world's only Human
Kaleidoscope, a game of strategy based on the Monty Hall 3-Door
problem, helping with puzzles, and demonstrating Jerry Andrus' optical
Detailed explanations of puzzles and exhibits at
the O4SR booth, plus pictures from previous years da Vinci Days:
Exhibits explanations - Web site prepared by Phil Pennington
Corvallis da Vinci Days web site
Past da Vinci Days
Vinci Days photo album.