critical distance

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• Critical distance — is, in audio physics, the distance at which the sound pressure level of the direct and the reverberant sound fields are equal when dealing with a directional source. In other words, the point in space where the amplitude of a reflected echo is… …   Wikipedia

• distance — noun 1 amount of space between two points ADJECTIVE ▪ considerable, enormous, fair, good, great, huge, large, long, vast ▪ …   Collocations dictionary

• Critical ionization velocity — experiment onboard space shuttle Discovery (STS 39), releasing a plume of nitrous oxide gas. Full text Critical ionization velocity (CIV, also called Critical velocity, CV) is the relative v …   Wikipedia

• Critical exponent — Critical exponents describe the behaviour of physical quantities near continuous phase transitions. It is believed, though not proven, that they are universal, i.e. they do not depend on the details of the physical system, but only on the… …   Wikipedia

• critical theory —    Critical theory in Spain can be divided into two interrelated areas: academic criticism as developed in the universities, and criticism disseminated by the mass media. Academic criticism has moved from structuralist models, which concentrate… …   Encyclopedia of contemporary Spanish culture

• Critical engine — The critical engine of a multi engine, fixed wing aircraft is the one whose failure would result in the most adverse effects on the aircraft s handling and performance. Contents 1 Description 2 Factors affecting engine criticality 2.1… …   Wikipedia

• Critical mass — This article is about nuclear fission reactions. For other uses, see Critical mass (disambiguation). As part of a re creation of a 1945 criticality accident, a plutonium pit is surrounded by blocks of neutron reflective tungsten carbide. The… …   Wikipedia

• Critical focus — In a photograph, the area of critical focus is the portion of the picture that is optically in focus. This does not relate to depth of field which describes apparent sharpness. Reducing the size of the aperture will increase the depth of field… …   Wikipedia

• Critical criminology — Criminology and Penology Schools Chicago School · Classical School Conflict Criminology Environmental Criminology Feminist School ·
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• Distance Learning-Education Beyond Buildings — ▪ 2009       By 2008 distance learning was an established part of the educational world. In U.S. higher education alone, by 2006 more than 20% of total enrollment was online. More than 3.5 million college students enrolled in at least one online… …   Universalium

• Distance measuring equipment — D VOR/DME ground station DME by itself Distance measuring equipment (DME) is a t …   Wikipedia