lily243
lily243
20-04-2017
Biology
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Was Sonar developed during World War One
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clara23
clara23
20-04-2017
Lewis Nixon invented the first sonar-like listening device to detect icebergs. During World War I (1914-18), a need to detect submarines increased interest in sonar. The U.S. military began using the term "sonar" during World War II.
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