In the early days of World War II, Allied navies faced a stark challenge: how to detect Germany’s growing fleet of u-boats and prevent them from repeating the havoc wrought in World War I.

With transducers mounted on the bow trolling-motor shaft, anglers can easily steer the sonar beam to find and track fish ... sharper resolution and reduced noise, along with three modes: Forward, Down ...

This is because water is much denser than air, and so can respond faster and better to acoustic pressure waves – sound waves. Because of these properties, ships use sonar to navigate through the ...

Then, a repetitive clanging sound with slight there’s-something-on-the-wing vibes can be heard. The Earthside crew member describes it as sounding “almost like a sonar ping.” Boeing’s ...

The sonar system uses loud pulses of sound to detect submarines—pulses that could severely injure or even kill anyone in their path. HMAS Toowoomba off the coast of Hawaii, 2018. According to ...

The word “sonar” stands for sound navigation and ranging. Sonar equipment sends out short acoustic (sound) pulses or pings, and then analyses the echoes. Depending on the timing, amplitude ...