range rate tracking system
61Subwoofer — A subwoofer is a woofer, or a complete loudspeaker dedicated to the reproduction of bass audio frequencies, from perhaps 150 Hz down as far as 20 Hz, or in rare cases lower. Also known as subs , these are used to augment the low frequency… …
62History of the United States Merchant Marine — See also: United States Merchant Marine This article is part of the U.S. Maritime History series. Maritime history of Colonial America 1776–1799 1800–1899 1900–1999 2000 The mariti …
63Maritime history of the United States (1900–1999) — This article is part of the U.S. Maritime History series. Maritime history of Colonial America 1776–1799 1800–1899 1900–1999 2000 The United States m …
64List of IBM products — The following is a list of notable products from the International Business Machines (IBM) Corporation and its predecessor corporations, beginning in the 1890s, and spanning punched card machinery, time clocks, and typewriters, via mainframe… …
65National missile defense — This article is about systems to shield an entire country. For the ground based US missile defense system, see Ground Based Midcourse Defense. A Payload Launch Vehicle (PLV) carrying a prototype exoatmospheric kill vehicle is launched from Meck… …
66Meteor (satellite) — The Meteor craft are weather observation satellites launched by the USSR. The Meteor satellites were designed to monitor atmospheric and sea surface temperatures, humidity, radiation, sea ice conditions, snow cover, and clouds. Contents 1 Meteor… …
67Dbx Model 700 Digital Audio Processor — The dbx Model 700 Digital Audio Processor was a professional audio ADC/DAC combination unit, which digitized a stereo analog audio input into a bitstream, which was then encoded and encapsulated in an analog composite video signal, for recording… …
68Denel 35mm Dual Purpose Gun — Type Naval Close in weapon system Place of origin  South Africa …
69Foreign policy of the United States — United States This article is part of the series: Politics and government of the United States …
70Virtual world — A virtual world is an online community that takes the form of a computer based simulated environment through which users can interact with one another and use and create objects.[1] The term has become largely synonymous with interactive 3D… …
