Beautiful images of everyday events revealing diffraction, refraction, and reflection of light, caused by natural variations in temperature, pressure, and density can be captured by Schlieren photography. These images inform understanding of the physics at work. The speaker will describe the techniques and physics of Schlieren photography. This will be an opportunity to learn about Schlieren photography and the historical connections to Harold Edgerton''s photography and his high speed photographic inventions. (There is now a parallel show of Edgerton''s photographic images at the Mead Art Museum at Amherst College until April 3.)
Vandiver is dean for undergraduate research and director of the Edgerton Center at MIT.