How fish fossils can help us build better submarines

The ocean, which covers the vast majority of the world's surface, holds many secrets. For more than a year a multinational team has tried to find the missing Malaysia Airlines flight MH370 on the bottom of it – without ...

Ultrasound technology made to measure

The range of uses for ultrasound is gigantic; the applied technologies are just as diverse. Researchers are now covering a wide range of applications with a new modular system: From sonar systems to medical ultrasound technologies ...

Sonar-assisted human navigation

When a biologist who studies bats and a computer scientist cross paths, amazingly cool things can happen.

Undergrads use sonar to uncover Lake Union shipwrecks

Below the kayakers, seaplanes and construction cranes in Seattle's Lake Union lie unseen relics of the city's history. Shipwrecks from past generations rest just below the busy surface.

Debris revives hope of finding Amelia Earhart plane

Researchers on the trail of missing 1930s aviatrix Amelia Earhart say they are increasingly convinced that aluminum debris found on a South Pacific beach came from her lost airplane.

Synthetic aperture sonar to help Navy hunt sea mines

(Phys.org) —Since World War II, sea mines have damaged or sunk four times more U.S. Navy ships than all other means of attack combined, according to a Navy report on mine warfare. New sonar research being performed by the ...

Whales hear us more than we realize

Killer whales and other marine mammals likely hear sonar signals more than we've known. That's because commercially available sonar systems, which are designed to create signals beyond the range of hearing of such animals, ...

Sonar loaded underwater robot to hunt for MH370

A torpedo-shaped mini-sub could provide conclusive proof that missing Malaysia Airlines Flight MH370 crashed into the Indian Ocean, but the task is set to push the machine to its limits.

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