target well depth
31Battle of the Atlantic (1914–1918) — Infobox Military Conflict conflict=Battle of the Atlantic partof=World War I caption= date=28 July 1914 – 11 November 1918 place=Atlantic Ocean, North Sea result=Decisive Allied Victory combatant1=navy|UK flag|Newfoundland Royal Canadian Navy… …
32Anti-frogman techniques — are security methods developed to protect watercraft, ports and installations, and other sensitive resources both in or nearby vulnerable waterways from potential threats or intrusions by frogmen or other divers.Risks and threats to be defended… …
33Anti-submarine warfare — (ASW or in older form A/S) is a branch of naval warfare that uses surface warships, aircraft, space craft or other submarines to find, track and then damage or destroy enemy submarines. Like many forms of warfare, successful anti submarine… …
34Underwater searches — are procedures carried out by divers in order to find a known or suspected target object or objects in a specified search area under water. There are a number of techniques in general use by Commercial, Scientific, Public service, Military, and… …
35MythBusters (2011 season) — Country of origin Australia United States Broadcast Original channel Discovery Channel Original run …
36Earth Sciences — ▪ 2009 Introduction Geology and Geochemistry The theme of the 33rd International Geological Congress, which was held in Norway in August 2008, was “Earth System Science: Foundation for Sustainable Development.” It was attended by nearly… …
37Naval mine — Polish wz. 08/39 contact mine. The protuberances around the top of the mine, called Hertz horns, are part of the detonation mechanism …
38Shaped charge — Sectioned high explosive anti tank round with the inner shaped charge visible …
39USS Sailfish (SS-192) — USS Sailfish (SS 192), a sclass|Sargo|submarine, was originally named Squalus .Her keel was laid on 18 October 1937 by the Portsmouth Naval Shipyard in Kittery, Maine, as Squalus , the only ship of the United States Navy named for the squalus.… …
40History of submarines — The history of submarines covers the historical chronology and facts related to submarines , manned autonomous boats that operate underwater. It includes the history of submersibles , which were designed primarily to operate on the surface, and… …
