sound underwater signal
41Beaver — Taxobox name = Beavers fossil range = Late Miocene – Recent image caption = American Beaver image width = 300px regnum = Animalia phylum = Chordata classis = Mammalia ordo = Rodentia familia = Castoridae genus = Castor genus authority = Linnaeus …
42List of James Bond gadgets — A popular element of the James Bond franchise is the exotic equipment and vehicles he is assigned on his missions, which often prove to be critically useful.The original books and early adaptations had only relatively minimal pieces like the… …
43Guðlaugur Kristinn Óttarsson — (Born December 11, 1954 in Reykjavík, Iceland), guitar player and engineer. He is a mathematician, an inventor, a practising polytechnic engineer, lecturer and the author of several scientific papers.Childhood: first contact with science and… …
44Hydroakustik — Wasserschall ist Schall, der im Wasser übertragen wird. Das zugehörige Fachgebiet der Akustik ist die Hydroakustik. Gelegentlich wird der Begriff Wasserschall auch als Synonym für die technische Anwendung der Hydroakustik gebraucht. Besondere… …
45United States — a republic in the N Western Hemisphere comprising 48 conterminous states, the District of Columbia, and Alaska in North America, and Hawaii in the N Pacific. 267,954,767; conterminous United States, 3,022,387 sq. mi. (7,827,982 sq. km); with… …
46Spider-Man's powers and equipment — The fateful spider bite that gave Peter Parker his powers. Amazing Fantasy #15, art by Steve Ditko. Spider Man s powers, abilities, and equipment are used by Marvel Comics superhero Spider Man in tandem to combat his many foes. He receives most… …
47Maritime Heritage Trail — Maritime Heritage Trail: Battle of Saipan View from Above, Tanapag Harbor and Mañagaha Island Underw …
48Dolphin — For other uses, see Dolphin (disambiguation). Bottlenose dolphin breaching in the bow wave of a boat …
49Naval mine — Polish wz. 08/39 contact mine. The protuberances around the top of the mine, called Hertz horns, are part of the detonation mechanism …
50Joint Electronics Type Designation System — The Joint Electronics Type Designation System (JETDS), which was previously known as the Joint Army Navy Nomenclature System (AN System) and the Joint Communications Electronics Nomenclature System, is a method developed by the U.S. War… …
