acoustic+tube

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• Acoustic resonance — is the tendency of an acoustic system to absorb more energy when the frequency of its oscillations matches the system s natural frequency of vibration (its resonance frequency ) than it does at other frequencies. A resonant object will probably… …   Wikipedia

• Acoustic tags — are small sound emitting devices that allow the detection and/or remote tracking of fish in three dimensions. Commonly used to monitor the behavior of fish, studies are conducted in lakes, rivers, tributaries, estuaries and at sea. Acoustic tag… …   Wikipedia

• Tube sound — (or valve sound) is the characteristic sound associated with a vacuum tube based audio amplifiers. Some audiophiles prefer the sound that is produced by the distortion characteristics of tube based amplifiers. The audible significance of tube… …   Wikipedia

• Acoustic streaming — is a steady current forced by the absorption of high amplitude acoustic oscillations.This phenomenon can be observed near sound emitters, or in the standing waves within a Kundt s tube.It is the less known opposite of sound generation by a… …   Wikipedia

• Acoustic transmission lines — An acoustic transmission line is the acoustic analog of the electrical transmission line, typically thought of as a rigid walled tube that is long and thin relative to the wavelength of sound present in it. Pipe organs, woodwinds, and the like… …   Wikipedia

• Acoustic vessels — Vessel Ves sel, n. [OF. vessel, veissel, vaissel, vaissiel, F. vascellum, dim. of vasculum, dim. of vas a vessel. Cf. {Vascular}, {Vase}.] 1. A hollow or concave utensil for holding anything; a hollow receptacle of any kind, as a hogshead, a… …   The Collaborative International Dictionary of English

• Torpedo tube — A torpedo tube is a device for launching torpedoes in a horizontal direction. There are two main types of torpedo tube: *Those designed to operate below water level, as fitted to submarines and some surface ships *Deck mounted torpedo launchers… …   Wikipedia

• Vortex tube — For the term vortex tube used in fluid dynamics please see: vorticity The vortex tube, also known as the Ranque Hilsch vortex tube, is a mechanical device that separates a compressed gas into hot and cold streams. It has no moving parts.… …   Wikipedia

• Crackle tube — A small battery powered Luminglas device, turned on. A small battery powered Luminglas device, turned …   Wikipedia

• External acoustic meatus — Infobox Anatomy Name =External acoustic meatus Latin = meatus acusticus externus GraySubject = 229 GrayPage = 1036 Caption = Anatomy of the human ear. Caption2 = Precursor = groove (cleft) of the first branchial arch. [EmbryologyUNC|hednk|022]… …   Wikipedia

• Hearing aid — Behind the ear aid In the ear aid …   Wikipedia