closed-circuit telegraph system
21Mexico — /mek si koh /, n. 1. a republic in S North America. 97,563,374; 761,530 sq. mi. (1,972,363 sq. km). Cap.: Mexico City. 2. a state in central Mexico. 6,245,000; 8268 sq. mi. (21,415 sq. km). Cap.: Toluca. 3. Gulf of, Mexican, Golfo de México /gawl …
22Puerto Rico — This article is about the Commonwealth of Puerto Rico. For other uses, see Puerto Rico (disambiguation). Commonwealth of Puerto Rico Estado Libre Asociado de Puerto Rico …
23Egypt — /ee jipt/, n. 1. Arab Republic of. a republic in NE Africa. 64,791,891; 386,198 sq. mi. (1,000,252 sq. km). Cap.: Cairo. Arabic, Misr. Formerly (1958 71), United Arab Republic. 2. an ancient kingdom in NE Africa: divided into the Nile Delta… …
24Electricity — (from the Greek word ήλεκτρον, (elektron), meaning amber, and finally from New Latin ēlectricus , amber like ) is a general term that encompasses a variety of phenomena resulting from the presence and flow of electric charge. These include many… …
25Token (railway signalling) — A token being offered by a signalman on the Keighley and Worth Valley Railway …
26Signal Corps (United States Army) — U.S. Army Signal Corps Coat of Arms Active 3 March 1863 – Present Country …
27Coaxial cable — RG 59 flexible coaxial cable composed of: A: outer plastic sheath B: woven copper shield C: inner dielectric insulator D: copper core Coaxial cable, or coax, has an inner conductor surrounded by a flexible, tubular insulating layer, surrounded by …
28Spaceship Earth (Epcot) — Infobox Disney ride name= Spaceship Earth park=Epcot land=Future World designer=WED Enterprises manufacturer=WED Enterprises type=Dark ride host=Judi Dench music=Bruce Broughton control system= propulsion= soft opened= opened=October 1, 1982… …
29Traffic Control — ➡ law enforcement * * * Introduction supervision of the movement of people, goods, or vehicles to ensure efficiency and safety. Traffic is the movement of people and goods from one location to another. The movement typically occurs… …
30Maharishi Mahesh Yogi — in 1973 Born Mahesh Prasad Varma 12 January 1917 Jabalpur, Central Provinces and Berar, British India …
