How much can you catch in a flash of light?

A lot.

Artificial Light: Flash Photography in the Twentieth Century is an exhibition at the Philadelphia Museum of Art through August 3.  The exhibition web page includes a slide show, along with a video interview with photographer Sara Stolfa, who took the photograph above.  You also can see a brief discussion of the show at Time Lightbox.  An intriguing review, one that connects flash artistry with the value of compassion, is provided by Ed Voves at Art Eyewitness.