expose+to+hazard
131Photographic film — This article is mainly concerned with still photography film. For motion picture film, please see film stock. Photographic film is a sheet of plastic (polyester, nitrocellulose or cellulose acetate) coated with an emulsion containing light… …
132John Brown (abolitionist) — John Brown Daguerreotype of Brown, ca.1856. Born May 9, 1800(1800 05 09) Torrington, Connecticut Died …
