mechanical engineering technicians
121Sri Lanka Army — Ins …
122nuclear reactor — Physics. reactor (def. 4). Also called nuclear pile. [1940 45] * * * Device that can initiate and control a self sustaining series of nuclear fission reactions. Neutrons released in one fission reaction may strike other heavy nuclei, causing them …
123Steinway & Sons — Steinway redirects here. For other uses, see Steinway (disambiguation). Steinway Sons Type Private (subsidiary of Steinway Musical Instruments)[1] …
124Scientific research in Canada — This article outlines the history of natural scientific research in Canada including, mathematics, physics, astronomy, space science, geology, oceanography, chemistry, biology, medical research and psychology. The social sciences are not treated… …
125Norden bombsight — The Norden bombsight at the Computer History Museum in Mountain View, California. This example does not have the associated autopilot attached …
126Flight controller — Flight controllers are personnel who aid in the operations of a space flight, working in Mission Control Centers such as NASA s Mission Control Center, or ESA s Operations Center. Flight controllers sit at computer consoles and use telemetry to… …
127stage design — Aesthetic composition of a dramatic production as created by lighting, scenery, costumes, and sound. While elements such as painted screens and wheeled platforms were used in the Greek theatre of the 4th century BC, most innovations in stage… …
128photography, technology of — Introduction equipment, techniques, and processes used in the production of photographs. The most widely used photographic process is the black and white negative–positive system (Figure 1 >). In the camera the lens projects an image of… …
