Acoustic homing — is a system which utilizes sound to guide a moving object, such as a torpedo. Acoustic homing can be either Passive or Active in nature. Using Passive, the system is designed to move either toward or away from a sound, and may also be designed to … Wikipedia
Active optics — is a relatively new technology for reflecting telescopes developed in the 1980s, which has more recently enabled the construction of a generation of telescopes with 8 metre primary mirrors. Active optics works by actively adjusting the telescope… … Wikipedia
Acoustic quieting — This article primarily discusses mechanical and acoustic noise. See Noise reduction for electronic noise. : For noise masking by saturation, see Sound masking or pink noise.Acoustic quieting is the process of making machinery quieter by damping… … Wikipedia
Active Denial System — Humvee with ADS mounted The Active Denial System (ADS) is a non lethal, directed energy weapon developed by the U.S. military.[1] It is a strong millimeter wave transmitter primarily used for crowd control (the goodbye effect [ … Wikipedia
активный акустический метод — Метод, основанный на излучении и приеме упругих волн. [Система неразрушающего контроля. Виды (методы) и технология неразрушающего контроля. Термины и определения (справочное пособие). Москва 2003 г.] Тематики виды (методы) и технология неразр.… … Справочник технического переводчика
Hearing aid — Behind the ear aid In the ear aid … Wikipedia
Torpedo — The modern torpedo (historically called an automotive, automobile, locomotive, or fish torpedo) is a self propelled explosive projectile weapon, launched above or below the water surface, propelled underwater toward a target, and designed to… … Wikipedia
Yu-1 torpedo — Infobox Weapon name=Yu 1 Torpedo caption=A Yu 1 Torpedo on display at the Beijing Military Museum origin=China type=Steam powered torpedo is ranged= is explosive=yes is vehicle=yes is missile=yes service=1971 used by=China, Albania, Bangladesh,… … Wikipedia
torpedo — torpedolike, adj. /tawr pee doh/, n., pl. torpedoes, v., torpedoed, torpedoing. n. 1. a self propelled, cigar shaped missile containing explosives and often equipped with a homing device, launched from a submarine or other warship, for destroying … Universalium
Mathematics of radio engineering — A complex valued function. The mathematics of radio engineering is a pleasant and very useful subject. This article is an attempt to provide a reasonably comprehensive summary of this almost limitless topic. While the ideas have historically… … Wikipedia
Dusky dolphin — Dusky dolphin … Wikipedia