Founded 1871

Fall 2015 & Spring 2016 Lecture Series

Sponsored by The Policy Studies Organization
In Cooperation with the American Public University
The Policy studies OrganizationAmerican Public University

PSW 2368
Friday, November 4th at 8:00 p.m.

Seeing the Light
The Wonderful Diversity of Light Perception in Living Organisms

Thomas Cronin

  • Professor of Biological Sciences
  • University of Maryland, Baltimore County

About the Lecture

Many of us are certain that human eyes are at the evolutionary apex of animal vision. While we have rather good general purpose vision - able to see a speck of dust on the window, provide a full experience of color space, sense motion so quick that we can (some of us) successfully hit an approaching fastball out into the bleachers, visualize a world lit with brilliant sunshine or dim starlight, move rapidly from an interesting object to another one far from it, and capture all the information in a scene - other animals badly outperform us in every one of these abilities, and many in several of them - with each of their eyes at the same time.

For more information about this upcoming lecture...




The Lectures, which are the centerpiece of all Philosophical Society of Washington meetings, are selected to appeal to those with a general interest in science and do not require a specialized knowledge of the subject. They always contain information that is current, explanations that are understandable and a few controversial issues to be challenged by a critical listener. The series is designed as much as possible to include a wide range of disciplines.

The meetings are open to the public, free, and no reservations are required. Dress is informal. Meetings are followed by lively conversation. All must exit the Cosmos Club at 10:30 p.m. Conversations are continued at another location. Please note, there is no parking at the Cosmos Club.

Meeting Location

The John Wesley Powell Auditorium is adjacent to the Cosmos Club, 2170 Florida Avenue NW, Washington DC 20008. Entrance is through the club gate, the first right-hand entrance on Florida Avenue north of the intersection with Massachusetts Avenue NW. The auditorium entrance is to the left of the gate.

The Cosmos Club is within walking distance of the DuPont Circle Metro stop (Q Street exit), the Connecticut Avenue bus routes (L2, L4), and the Massachusetts Avenue bus routes (N2, N4).


Title Name
President Larry S. Millstein
Treasurer John Ingersoll
Program Chair Larry S. Millstein
Membership Chair James Garay Heelan
Corresponding Secretary Robin Taylor