frequency-control service
91National Airspace System — The National Airspace System (NAS) of the United States is one of the most complex aviation systems in the world consisting of thousands of people, procedures, facilities, and pieces of equipment that enables safe and expeditious air travel in… …
92Invercargill Airport — IATA: IVC – ICAO: NZNV …
93Manitoba Hydro — Type Crown Corporation Industry Electricity generation, transmission and distribution Natural gas distribution …
94Experimenter Publishing — was an American media company founded by Hugo Gernsback in 1915. The first magazine was The Electrical Experimenter (1913–1931) and the most notable magazines were Radio News (1919–1985) and Amazing Stories (1926–2005). Their radio station, WRNY …
95San Francisco Municipal Railway — Info Owner City and County of San Francisco Locale San Francisco …
96Indian Standard Time — (IST) is the time observed throughout India and Sri Lanka, with a time offset of . India does not observe daylight saving time, (DST) or other seasonal adjustments, although DST was used briefly during the Sino–Indian War of 1962 and the… …
97Beijing Subway — Infobox Public transit name = Beijing Subway imagesize = 250px locale = Beijing transit type = rapid transit began operation = 1969 ended operation = system length = km to mi|200|abbr=yes|precision=0 lines = 8 vehicles = stations = 123 (stations… …
98Droitwich transmitting station — Masts at Droitwich transmitting station The Droitwich transmitting station is a large broadcasting facility for longwave and mediumwave transmissions, established in 1934 in the civil parish of Dodderhill, just outside the village of Wychbold,… …
99P-18 radar — in Germany with Parol IFF Country of origin …
100High-speed rail — is a type of passenger rail transport that operates significantly faster than the normal speed of rail traffic. Specific definitions include 200 km/h (124 mph) and faster depending on whether the track is upgraded or new by the European Union,… …
