Dancer's Cartwheel, 1940. At a photography fair in Chicago, Kodak introduced Edgerton's Kodatron strobe with a demonstration of its ability to record rapid movement. At1/3,000 of a second, the flash stopped the dancer's momentum in the middle of her seemingly impossible move. The art of high-speed photography records these kinds of fast-moving objects, documenting things that are normally invisible to the human eye. Scientists use high-speed photographs to study physical movement, measuring phenomena like surface tension and gravitational effects.