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What Is Radar Beginning of Paper The word "radar" was invented by scientists of the United States Navy during World War II. The word comes from the first letters in the term "radio detection and ranging.""Detection," as used here, means finding an object or target by sending out a radio signal that will bounce back .... Middle of Paper .... tell how fast and in which direction the target is moving. This information can be used to direct the firing of guns and missiles to protect a country against attack. In peacetime, radar can help navigate ships, land planes in a fog, and guide astronauts. Radar can help control street traffic and assist the police in finding speeding automobiles. Radar sets come in many sizes. A small set, made for use in a guided missile, is not much larger than a coffeepot. The larger sets used to study distant planets may oupy a building many storie .... 2203 words | 9 pages Subscription Length Price Join 30 days membership (recurring) $19.95 90 days membership (recurring) $39.95 180 days membership (non-recurring) $69.95