HELSINKI (Reuters) - The Finnish military fired on Tuesday handheld underwater depth charges as a warning against a suspected submarine in waters near Helsinki, an incident that comes amid growing ...

(a) Penetration of the metal jet; (b) propagation of the ballistic wave and shock wave; (c) bubble pulsation. The time t (in milliseconds) is labeled in the bottom right corner, which corresponds to ...

When submarines became a frightening threat to the navies during World War 2, military developers were forced to find ...

Results of Turbid Underwater 3D Polarization Imaging. (a) Polarization binocular underwater robot and marine experimental scene. (b) Binocular imaging restoration results, depth estimation results and ...

USS Sea Devil, a Balao-class submarine, cuts through the rough waters of the Yellow Sea in April 1945. Her battle-scarred hull and seasoned crew bear witness to two years of intense combat in the ...

Underwater acoustic source localization and depth estimation are pivotal techniques in oceanographic research, maritime surveillance and environmental monitoring. These methods utilise the propagation ...

Special to Manitowoc Herald Times Reporter USA TODAY NETWORK-Wisconsin USS Puffer (SS 268), the fourth submarine constructed by the Manitowoc Shipbuilding Company during World War II, was launched on ...

The mechanical Hedgehog proved itself to be a deadly predator and killer of Axis submarines. When one thinks of antisubmarine warfare (ASW) weapons of World War II, chances are the depth charge is the ...