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Whales and Sonar - Environmental Exemptions for the Navy's Mid-Frequency Active Sonar Training Program (Paperback) Loot Price: R369
Discovery Miles 3 690
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Whales and Sonar - Environmental Exemptions for the Navy's Mid-Frequency Active Sonar Training Program (Paperback):...

Whales and Sonar - Environmental Exemptions for the Navy's Mid-Frequency Active Sonar Training Program (Paperback)

Kristina Alexander

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Loot Price R369 Discovery Miles 3 690

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Mid-frequency active (MFA) sonar emits pulses of sound from an underwater transmitter to help determine the size, distance, and speed of objects. The sound waves bounce off objects and reflect back to underwater acoustic receivers as an echo. MFA sonar has been used since World War II, and the Navy indicates it the only reliable way to track submarines, especially more recently designed submarines that operate more quietly, making them more difficult to detect.

General

Imprint: Bibliogov
Country of origin: United States
Release date: 2013
First published: 2013
Authors: Kristina Alexander
Dimensions: 246 x 189 x 1mm (L x W x T)
Format: Paperback - Trade
Pages: 22
ISBN-13: 978-1-288-66575-4
Categories: Books > Social sciences > Politics & government > General
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LSN: 1-288-66575-X
Barcode: 9781288665754

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