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91Battery (electricity) — For other uses, see Battery (disambiguation). Various cells and batteries (top left to bottom right): two AA, one D, one handheld ham radio battery, two 9 volt (PP3), two AAA, one C, one …
92Microwave oven — A modern microwave oven …
93Sellafield — Aerial view of the site …
94Rocket propellant — is mass that is stored, usually in some form of propellant tank, prior to being used as the propulsive mass that is ejected from a rocket engine in the form of a fluid jet to produce thrust.Chemical rocket propellants are most commonly used,… …
95Spray tower — Spray towers or spray chambers are a form of pollution control technology. They consist of empty cylindrical vessels made of steel or plastic and nozzles that spray liquid into the vessels. The inlet gas stream usually enters the bottom of the… …
96Gundu Hirisave Rama Rao — was born in Tumkur (Karnataka), India, on 23 August 1937. He is a scientist, entrepreneur and a tenured professor at the Academic Health Center, University of Minnesota. He and Professor John Eaton visited India in 1981 under a National Science… …
97Compass — This article is about the direction finding instrument used in navigation. For other uses, see Compass (disambiguation). A simple dry magnetic pocket compass …
98Creosote — For other uses, see Creosote (disambiguation). Creosote is the portion of chemical products obtained by the distillation of a tar that remains heavier than water, notably useful for its anti septic and preservative properties.[1] It is produced… …
99Countercurrent exchange — Counter heat current exchange: Note the gradually declining differential and that the once hot and cold streams exit at the reversed temperature difference; the hotter entering stream becomes the exiting cooler stream and vice versa.… …
100Organic light-emitting diode — Demonstration of a flexible OLED device A green emitting OLED device An …
