combined satellite communication system
91Polarization — ( Brit. polarisation) is a property of waves that describes the orientation of their oscillations. For transverse waves, it describes the orientation of the oscillations in the plane perpendicular to the wave s direction of travel. Longitudinal… …
92History of navigation — In the pre modern history of human migration and discovery of new lands by navigating the oceans, a few peoples have excelled as sea faring explorers. Prominent examples are the Phoenicians, the ancient Greeks, the Persians, the Arabians, the… …
93United States Air Force — USAF redirects here. For other uses, see USAF (disambiguation). The U.S. Air Force redirects here. For the song, see The U.S. Air Force (song). United States Air Force …
94Appropriate technology — (AT) is technology that is designed with special consideration to the environmental, ethical, cultural, social and economical aspects of the community it is intended for. With these goals in mind, AT typically requires fewer resources, is easier… …
95Air Force Space Command — Infobox Military Unit unit name= Air Force Space Command caption=Emblem of the AFSPC dates= September 1982–Present country= United States branch= Air Force type= Major Command role= Development and operation of military space technologies size=… …
96Plattsburgh Air Force Base — PAFB redirects here. For the military airport in Alaska with that ICAO code, see Ladd Army Airfield. For the civil use of this facility and airport information, see Plattsburgh International Airport. Plattsburgh Air Force Base …
97Vacuum tube — This article is about the electronic device. For experiments in an evacuated pipe, see free fall. For the transport system, see pneumatic tube. Modern vacuum tubes, mostly miniature style In electronics, a vacuum tube, electron tube (in North… …
98Adaptive optics — (AO) is a technology used to improve the performance of optical systems by reducing the effects of rapidly changing optical distortion. It is used in astronomical telescopes and laser communication systems to remove the effects of atmospheric… …
99Radio Caroline — is a European radio station that started transmissions on Easter Sunday 1964 from a ship anchored in international waters off the coast of Felixstowe, Suffolk, England. [ [http://www.radiocaroline.co.uk/history2.asp Don t Get Mad, Get Even] ] It… …
100New York City — City (pop., 2000: 8,008,278), southeastern New York, at the mouth of the Hudson River. The largest city in the U.S. and an important seaport, it consists of five boroughs: the Bronx, Brooklyn, Manhattan, Queens, and Staten Island. The site of a… …
