location sensing
51Radar MASINT — is one of the subdisciplines of Measurement and Signature Intelligence (MASINT) and refers to intelligence gathering activities that bring together disparate elements that do not fit within the definitions of Signals Intelligence (SIGINT),… …
52Helmet mounted display — For non aviation applications, see Head mounted display Helmet mounted display The Integrated Helmet and Display Sight System (IHADSS) A helmet mounted display ( …
53Earth exploration — Introduction the investigation of the surface of the Earth and of its interior. By the beginning of the 20th century most of the Earth s surface had been explored, at least superficially, except for the Arctic and Antarctic regions. Today the… …
54undersea exploration — Introduction the investigation and description of the ocean waters and the seafloor and of the Earth beneath. Primary objectives and accomplishments Included in the scope of undersea exploration are the physical and chemical… …
55Outline of astronomy — Mauna Kea in Hawaii is one of the world s premier observatory sites. Pictured is the W. M. Keck Observatory, an optical interferometer. The following outline is provided as an overview of and topical guide to astronomy: Astronomy – studies the… …
56India — /in dee euh/, n. 1. Hindi, Bharat. a republic in S Asia: a union comprising 25 states and 7 union territories; formerly a British colony; gained independence Aug. 15, 1947; became a republic within the Commonwealth of Nations Jan. 26, 1950.… …
57Satellite — This article is about artificial satellites. For natural satellites, also known as moons, see Natural satellite. For other uses, see Satellite (disambiguation). An animation depicting the orbits of GPS satellites in medium Earth orbit …
58William Thomson, 1st Baron Kelvin — Infobox Scientist box width = 300px name = Lord Kelvin image width = 300px caption = William Thomson, 1st Baron Kelvin (1824 1907) birth date = birth date|1824|6|26|df=y birth place = Belfast, Co. Antrim, Northern Ireland death date = death date… …
59Astronomy — (from the Greek words astron (ἄστρον), star , and nomos (νόμος), law ) is the scientific study of celestial objects (such as stars, planets, comets, and galaxies) and phenomena that originate outside the Earth s atmosphere (such as the cosmic… …
60Wildfire — This article is about uncontrolled outdoor fire. For the New York rock band, see Forest Fire (band). For other uses, see Wildfire (disambiguation). Crown Fire redirects here. For the 2010 wildfire in Southern California, see 2010 California… …
