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71Timeline of jet power — This article outlines some of the important developments in the early history of the development of the jet engine. Although the most common type, the gas turbine powered jet engine, was certainly a 20th century invention, many of the needed… …
72Doping at the 2007 Tour de France — Part of a series on Doping in sport …
73social security — 1. (usually caps.) a program of old age, unemployment, health, disability, and survivors insurance maintained by the U.S. federal government through compulsory payments by specific employer and employee groups. 2. the theory or practice of… …
74Chinese Million Star — Million Star/Chinese Million Star Chinese Million Star Logo Also known as 华人星光大道 Genre Reality/Competition Present …
75History of radar — The history of radar starts with experiments by Heinrich Hertz in the late 19th century that showed that radio waves were reflected by metallic objects. This possibility was suggested in James Clerk Maxwell s seminal work on electromagnetism.… …
76Agoranomi — were magistrates in the republics of Greece, whose position and duties were in many respects similar to those of the aediles of Rome. In Athens there were ten, chosen annually by lot, five of whom took charge of the city and five of the Peiraeus …
77Retired Metropolitan Transportation Authority (New York) demonstration bus fleet — The Metropolitan Transportation Authority (New York) (MTA) has tested single buses from time to time, usually on loan from the manufacturer. Year Builder and model name Length (feet) Powertrain (Engine and transmission or propulsion system)… …
78Communities That Care — [1][2] Communities That Care (CTC) is a program of the Center for Substance Abuse Prevention (CSAP) in the office of the United States Government s Substance Abuse and Mental Health Services Administration (SAMHSA). CTC is a coalition based… …
79Nuclear weapon design — The first nuclear weapons, though large, cumbersome and inefficient, provided the basic design building blocks of all future weapons. Here the Gadget device is prepared for the first nuclear test: Trinity. Nuclear weapon designs are physical,… …
80List of states with nuclear weapons — Map of nuclear weapons countries of the world.   NPT nuclear weapon States (China, France, Russia, UK, USA) …
