In 1906, Lewis Nixon invented the first sonar-type listening device to detect icebergs. Years later, Sound Navigation and Ranging (SONAR) became a staple in naval military warfare for its ability to detect submarines. With the ocean bed holding critical oil and communication lines, submarines are key to surveillance practices necessary for threat assessment and protection. However, there are a lot of unique challenges with submarines, including navigation. With so much of the ocean bed still unmapped, sonar technology is used
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