celestial navigation training
71Song Dynasty — This article is about the Northern and Southern Song Dynasties. For the Southern Dynasty, see Liu Song Dynasty. Song 宋 ← …
72United States Naval Observatory — USNO redirects here. For other uses, see USNO (disambiguation). The Seal of the USNO with a quote from the Astronomicon, Adde guberandi studium: Pervenit in astra, et pontum caelo conjunxit, Increase the study of navigation: it arrives in the… …
73Puerto Rican scientists and inventors — The discoveries and contributions which have been made by Puerto Rican scientists and inventors in their respective fields have impacted the way of life of the inhabitants of Puerto Rico, and in many cases society in general. Hundreds of years… …
74Indian Armed Forces —   भारतीय सशस्त्र सेनाएं   Emblem of India Service branches …
75Judaism — /jooh dee iz euhm, day , deuh /, n. 1. the monotheistic religion of the Jews, having its ethical, ceremonial, and legal foundation in the precepts of the Old Testament and in the teachings and commentaries of the rabbis as found chiefly in the… …
76AGM-28 Hound Dog — Infobox Weapon is missile=yes name=AGM 28 Hound Dog caption= origin= type=Cruise Missile used by= manufacturer=North American Aviation unit cost=$690,073 propellant= production date=April 1959 service=September 13, 1960 engine=Pratt Whitney J52 P …
77List of Chinese inventions — A bronze Chinese crossbow mechanism with a buttplate (the wooden components have …
78Islamic Golden Age — The Islamic Golden Age, also sometimes known as the Islamic Renaissance, [Joel L. Kraemer (1992), Humanism in the Renaissance of Islam , p. 1 148, Brill Publishers, ISBN 9004072594.] was traditionally dated from the 8th century to the 13th… …
79History of longitude — The history of longitude is a record of the effort, by navigators and scientists over several centuries, to discover a means of determining longitude. The measurement of longitude is important to both cartography and navigation. Historically, the …
80Space Race — For a discussion of all spaceflight programs to date, see History of spaceflight. For a list of key events, see Timeline of space exploration. For other uses of the term, see Space Race (disambiguation). A replica of Sputnik 1, the world s… …
