to time one's exposure correctly -
31Scrabble (game show) — Infobox Television show name = Scrabble caption = The Scrabble logo used from 1984 1990. genre = Game show creator = Reg Grundy writer = Richard Janaver, Deb Dittmann, Jan Heininger director = Chris Darley starring = Chuck Woolery narrated = Jay… …
32Film speed — is the measure of a photographic film s sensitivity to light, determined by sensitometry and measured on various numerical scales, the most recent being the ISO system. A closely related ISO system is used to measure the sensitivity of digital… …
33Reading education in the United States — For other uses, see Reading (disambiguation). Part of a series on Reading …
34Flash (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… …
35Reading education — is the process by which individuals are taught to derive meaning from text.Government funded scientific research on reading and reading instruction began in the U.S. in the 1960s. In the 1970s and 1980s, researchers began publishing findings… …
36Cancer — For other uses, see Cancer (disambiguation). Cancer Classification and external resources …
37Recall (memory) — Recollection redirects here. For other uses, see Recollection (disambiguation). Recall in memory refers to the retrieval of events or information from the past. Along with encoding and storage, it is one of the three core processes of memory.… …
38Optics — For the book by Sir Isaac Newton, see Opticks. Optical redirects here. For the musical artist, see Optical (artist). Optics includes study of dispersion of light. Optics is the branch of …
39Hip-hop dance — For more details on the history, social dancing, and worldwide exposure, see History of hip hop dance. Hip hop dance A b boy performing in a cipher in Turkey …
40Rebreather — A fully closed circuit electronic rebreather (Ambient Pressure Diving Inspiration) Acronym CCUBA (Closed Circuit Underwater Breathing Apparatus); CCR (Closed circuit rebreather), SCR (Semi closed rebreather) Uses Breathing set …
