limiting depth

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• Depth of field — The area within the depth of field appears sharp, while the areas in front of and beyond the depth of field appear blurry …   Wikipedia

• Equivalent air depth — In technical diving, the equivalent air depth (EAD) is a way of expressing the narcotic effect of specific breathing gas mixtures that contain nitrogen, for example nitrox and trimix. [cite journal |last=Logan |first=JA |title=An evaluation of… …   Wikipedia

• SOFAR channel — The SOFAR channel (short for Sound Frequency and Ranging channel), or deep sound channel (DSC),[1] is a horizontal layer of water in the ocean at which depth the speed of sound is minimal. The SOFAR channel acts as a waveguide for sound, and low… …   Wikipedia

• Mere (lake) — Mere in English refers to a lake that is broad in relation to its depth, e.g. Martin Mere. A significant effect of its shallow depth is that for all or most of the time, it has no thermocline. Contents 1 Derivation of the word 1.1 Etymology 1.2… …   Wikipedia

• Lake Balkhash — Not to be confused with Lake Baikal. Lake Balkhash Балқаш Көлі Озеро Балхаш View from Space, April 1991 Location Kazakhstan Coordinates …   Wikipedia

• lake — lake1 /layk/, n. 1. a body of fresh or salt water of considerable size, surrounded by land. 2. any similar body or pool of other liquid, as oil. 3. (go) jump in the lake, (used as an exclamation of dismissal or impatience.) [bef. 1000; ME lak(e) …   Universalium

• Lake — /layk/, n. Simon, 1866 1945, U.S. engineer and naval architect. * * * I Relatively large body of slow moving or standing water that occupies an inland basin. Lakes are most abundant in high northern latitudes and in mountain regions, particularly …   Universalium

• Cnoidal wave — US Army bombers flying over near periodic swell in shallow water, close to the Panama coast (1933). The sharp crests and very flat troughs are characteristic for cnoidal waves. In fluid dynamics, a cnoidal wave is a nonlinear and exact periodic… …   Wikipedia

• eye, human — ▪ anatomy Introduction  specialized sense organ capable of receiving visual images, which are then carried to the brain. Anatomy of the visual apparatus Structures auxiliary to the eye The orbit       The eye is protected from mechanical injury… …   Universalium

• river — river1 riverless, adj. riverlike, adj. /riv euhr/, n. 1. a natural stream of water of fairly large size flowing in a definite course or channel or series of diverging and converging channels. 2. a similar stream of something other than water: a… …   Universalium

• Sulcus — From the Latin for a groove, furrow, or trench. In medicine, there are many sulci (plural of sulcus) as, for example, the superior pulmonary sulcus. * * * 1. [TA] One of the grooves or furrows on the surface of the brain, bounding the several… …   Medical dictionary