Episode Detail: The Invisible World - National Geographic
Microscope photography and cameras that create images from sounds are used to explore “The Invisible World.” Phenomena studied include microorganisms; a bullet frozen as it rips through a playing card; a human fetus in a mother's womb; and a star from a galaxy 600 light years away. Also: a look at how time-lapse, slow-motion and Kerlian photography work. Narrator: Richard Basehart.