group control center
51786th Aircraft Control and Warning Squadron — Infobox Military Unit unit name= 786th Aircraft Control and Warning Squadron caption= Official crest of the 786th Aircraft Control and Warning Squadron dates= March 1951–July 1979 country= United States allegiance= branch= United States Air Force …
52World Trade Center — Pour la tour en reconstruction, voir 1 World Trade Center. Pour les autres articles homonymes, voir World Trade Center (homonymie). Tours 1 et 2 du World Trade Center …
53World Trade Center (New York) — World Trade Center Pour les articles homonymes, voir World Trade Center (film).  Pour la tour en reconstruction, voir 1 World Trade Center …
54Communications-based train control — CBTC deployment in Metro de Madrid, Spain …
55962d Airborne Air Control Squadron — Infobox Military Unit unit name= 962d Airborne Air Control Squadron caption= 962d Airborne Air Control Squadron Patch dates= 1 November 1943 28 August 1945 8 July 1955 31 December 1969 1 July 1986 Present country= United States allegiance= branch …
56Quasisimple group — In mathematics, a quasisimple group (also known as a covering group) is a group that is a perfect central extension E of a simple group S . In other words, there is a short exact sequence:1 rarr; Z ( E ) rarr; E rarr; S rarr; 1such that E = [ E …
57Chicago Center for Urban Life and Culture — For the Air Traffic Control center, see Chicago Air Route Traffic Control Center. Chicago Center for Urban Life and Culture is the only nonprofit and independent experiential educational program for college students in the United States. It was… …
58Lyndon B. Johnson Space Center — Luftaufnahme des Johnson Space Centers 29.556388888889 95.0875 Koordinaten …
591 World Trade Center —  Pour la tour homonyme située à Miami, voir Freedom Tower (Miami). 40°42′46″N 74°00′48″O / …
60One World Trade Center — Cet article concerne la tour à New York. Pour la tour à Miami, voir Freedom Tower (Miami). One World Trade Center …
