polar direction
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Polar Alignment — is the act of aligning the rotational axis of a telescopes equatorial mount in parallel with the rotational axis of the earth.There are various ways to achieve this. Alignment Methods The method to use differ depending on if the alignment is… … Wikipedia
polar — [pō′lər] adj. [ML polaris < L polus: see POLE2] 1. a) of, relating to, or near the North or South pole b) coming from the region near the North or South pole 2. of a pole or poles 3. having polarity … English World dictionary
Polar coordinate system — Points in the polar coordinate system with pole O and polar axis L. In green, the point with radial coordinate 3 and angular coordinate 60 … Wikipedia
polar wandering — Migration of the magnetic poles of the Earth through geologic time. Scientific evidence indicates that the magnetic poles have slowly and erratically wandered across the surface of the Earth. Pole locations calculated from measurements on rocks… … Universalium
Polar (artist) — Infobox musical artist Name = Polar Img capt = Img size = Landscape = Background = group or band Alias = K Jef Dam Jazzasins Teebee K Origin = Bergen, Norway Genre = Drum and bass Neurofunk Ambient Electro Electronica Breakbeat Years active =… … Wikipedia
Polar membrane — In the scientific literature polar membrane has acquired two separate meanings.1) A lipid biomembrane expressing polarity in the electrical sense. Such membranes can be manipulated chemically and their electrical properties can be studied by… … Wikipedia
polar air mass — That air mass that originates in high latitudes. Polar air masses are of two types polar maritime and polar continental. The polar continental has its source in continental Eastern Europe, Siberia, and Canada, and it brings very cold weather to… … Aviation dictionary
Polar effect — The Polar effect or electronic effect in chemistry is the effect exerted by a substituent on modifying electrostatic forces operating on a nearby reaction center. The main contributors to the polar effect are the inductive effect, mesomeric… … Wikipedia
polar coordinates — The coordinates derived from the distance and angular measurements from a fixed point (i.e., pole). Polar coordinates are almost always used in plotting antenna direction patterns. topographical maps, radio aids, and meteorological charts for use … Aviation dictionary
polar transmission — A method of transmitting teletypewriter signals, whereby the marking signal is represented by direct current flowing in one direction and the spacing signal is represented by an equal current flowing in the opposite direction. In tone… … IT glossary of terms, acronyms and abbreviations
Polar projection — Projection Pro*jec tion, n. [L. projectio: cf. F. projection.] [1913 Webster] 1. The act of throwing or shooting forward. [1913 Webster] 2. A jutting out; also, a part jutting out, as of a building; an extension beyond something else. [1913… … The Collaborative International Dictionary of English
