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  2. Sonoluminescence - Wikipedia

    en.wikipedia.org/wiki/Sonoluminescence

    Sonoluminescence is the emission of light from imploding bubbles in a liquid when excited by sound. Sonoluminescence was first discovered in 1934 at the University of Cologne. It occurs when a sound wave of sufficient intensity induces a gaseous cavity within a liquid to collapse quickly, emitting a burst of light.

  3. Submarine signals - Wikipedia

    en.wikipedia.org/wiki/Submarine_signals

    The Submarine Signal Company was the first company engaged in underwater acoustics, becoming the national underwater sound experts and producing acoustical aids to navigation. It also became the major sonar supplier to the U.S. Navy in later years. [23]

  4. Sonar - Wikipedia

    en.wikipedia.org/wiki/Sonar

    Sonar (sound navigation and ranging or sonic navigation and ranging) [2] is a technique that uses sound propagation (usually underwater, as in submarine navigation) to navigate, measure distances , communicate with or detect objects on or under the surface of the water, such as other vessels. [3]

  5. Underwater acoustics - Wikipedia

    en.wikipedia.org/wiki/Underwater_acoustics

    Output of a computer model of underwater acoustic propagation in a simplified ocean environment. A seafloor map produced by multibeam sonar. Underwater acoustics (also known as hydroacoustics) is the study of the propagation of sound in water and the interaction of the mechanical waves that constitute sound with the water, its contents and its boundaries.

  6. Radio silence, escape options and ‘banging’ sounds: Five ...

    www.aol.com/titanic-submarine-five-unanswered...

    The sudden loss of contact roughly 105 minutes after the Titan departed for the famed wreck site was an ominous sign, experts say

  7. This Man Knows the Truth About Amelia Earhart. Why Doesn’t ...

    www.aol.com/man-knows-truth-amelia-earhart...

    A new cohort of explorers is turning to advanced underwater sonar imaging technology in hopes of a breakthrough. One of the first to pioneer the tech was marine explorer Bob Ballard, who ...

  8. CAPTAS-4 - Wikipedia

    en.wikipedia.org/wiki/CAPTAS-4

    The CAPTAS-4 is a towed array sonar developed by Thales Underwater Systems to equip first-rank surface combatants.Manufactured in Brest, France, it represents the high-end and most powerful system of the company's CAPTAS (Combined Active and Passive Towed Array Sonar) line of products [1] and equips several first-rank warships of the French Navy as well as those of various export customers.

  9. Titanic sub latest: Details about design of submarine may ...

    www.aol.com/titanic-sub-details-design-submarine...

    First photos of Titan wreckage released. ... P8 Poseidon aircraft with underwater sonar capabilities joined the search on Monday afternoon. ... “In light of these tragic events, we have informed ...