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R

Page history last edited by PBworks 14 years, 8 months ago

RADAR

 

RADAR is a system used to detect, range (determine the distance of), and map objects such as aircraft and rain. Coined in 1941 as an acronym for Radio Detection and Ranging, it has since entered the English language as a standard word, losing the capitalization in the process.

 

Dennis Newson - with thanks to Jan

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