Eadweard Muybridge was a photographer who worked at the University of Pennsylvania in the 1880s and created an early form of moving pictures. He used multiple cameras to photograph people and animals in motion, capturing movements that happened too quickly for the human eye to see clearly. His groundbreaking work, "Animal Locomotion" (1887), helped lay the foundation for modern cinema by proving that continuous motion could be broken down into a series of still photographs.
Eadweard Muybridge, Zoopraxographer (Thom Andersen, 1975) [Penn only]
Eadweard Muybridge & the Technological Wild West. Lecture by Rebecca Solnit. Chicago Humanities Festival, Nov. 11, 2011. [YouTube]