underwater sound

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• Underwater acoustics — The field of underwater acoustics is closely related to a number of other fields of acoustic study, including sonar, transduction, acoustic signal processing, acoustical oceanography, bioacoustics, and physical acoustics.HistoryUnderwater sound… …   Wikipedia

• Underwater — is a term describing the realm below the surface of water where the water exists in a natural feature (called a body of water) such as an ocean, sea, lake, pond, or river. Three quarters of the planet Earth is covered by water. A majority of the… …   Wikipedia

• Sound pressure — Sound measurements Sound pressure p, SPL Particle velocity v, SVL Particle displacement ξ Sound intensity I, SIL Sound power Pac Sound power level SWL Sound energy Sound energy d …   Wikipedia

• Sound from ultrasound — Contents 1 Parametric array 2 Applications 2.1 Commercial advertising …   Wikipedia

• Speed of sound — Sound is a vibration that travels through an elastic medium as a wave. The speed of sound describes how much distance such a wave travels in a certain amount of time. In SI Units with dry air at 20 °C (68 °F), the speed of sound is 343 m/s. This… …   Wikipedia

• Underwater Archaeological Society of British Columbia — Die Underwater Archaeological Society of British Columbia (UASBC) ist eine kanadische Organisation, die seit 1975 besteht und sich mit der Unterwasserarchäologie British Columbias beschäftigt und somit Beiträge zur Geschichte British Columbias… …   Deutsch Wikipedia

• sound reception — Introduction       response of an organism s aural mechanism, the ear, to a specific form of energy change, or sound waves. Sound waves can be transmitted through gases, liquids, or solids, but the hearing function of each species is particularly …   Universalium

• Sound speed gradient — In acoustics, the sound speed gradient is the rate of change of the speed of sound with distance, for example with depth in the ocean,cite book title=Navy Supplement to the DOD Dictionary of Military and Associated Terms month=August year=2006… …   Wikipedia

• Underwater telephone — The underwater telephone also known as UQC or Gertrude wasdeveloped by the U.S. Navy after World War II, the UQC underwater telephone is used on all manned submersibles in operation. Voices communicated through the UQC are heterodyned to a high… …   Wikipedia

• underwater options — n. Stock options in which the strike price (the price at which the employee is contracted to buy the shares) is higher than the current stock price. Example Citation: Confronted with the shortcomings of their options strategies, tech companies… …   New words

• sound gear — noun : acoustic and sonic underwater submarine detection equipment …   Useful english dictionary