photographic lamp
5119th century in film — See also: 1900 in film, list of years in film .Events*1832 Joseph Plateau (Belgium) and Simon von Stampfer (Vienna) introduced simultaneously a scientific demonstration device that creates an optical illusion of movement by mounting drawings on… …
52Appropriate technology — (AT) is technology that is designed with special consideration to the environmental, ethical, cultural, social and economical aspects of the community it is intended for. With these goals in mind, AT typically requires fewer resources, is easier… …
53Flash (photography) — The furious wing action of a Hummingbird Hawk moth is frozen by flash. The flash has given the foreground more illumination than the background. See Inverse square law A flash is a device used in photography producing a flash of artificial light… …
54Christmas lighting technology — has been subject to considerable development and variation since the replacement of candles by electric lights. Contents 1 Incandescent Christmas Lights 2 LEDs 3 Fiber optic lights 4 B …
55Electric light — Most of the industrialized world is lit by electric lights, which are used both at night and to provide additional light during the daytime. These lights are normally powered by the electric grid, but some run on local generators, and emergency… …
56New York City Subway — Top: A number 4 train made up of R142 …
57Reversal film — A single slide, showing a color transparency in a plastic frame A slide projector, showing the l …
58Gum bichromate — is a 19th century photographic printing process based on the light sensitivity of dichromates. It is capable of rendering painterly images from photographic negatives. Gum printing is traditionally a multi layered printing process, but… …
59Opium — For other uses, see Opium (disambiguation). Opium Opium poppy fruit exuding latex from a cut Botanical Opium Source plant(s) Papaver somnifer …
60Optical microscope — Microscope Uses Small sample observation Notable experiments Discovery of cells Inventor Hans Lippershey Zacharias Jans …
