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Controlled vocabularies are often claimed to improve the accuracy of free text searching, such as to reduce irrelevant items in the retrieval list. These irrelevant items (false positives) are often caused by the inherent ambiguity of natural language. Take the English word football for example. Football is the name given to a number of ...
The praxinoscope improved on the zoetrope by replacing its narrow viewing slits with an inner circle of mirrors, [1] placed so that the reflections of the pictures appeared more or less stationary in position as the wheel turned. Someone looking in the mirrors would therefore see a rapid succession of images producing the illusion of motion ...
List items should be formatted consistently in a list. Unless there is a good reason to use different list types in the same page, consistency throughout an article is also desirable. Use sentence case by default for list items, whether they are complete sentences or not. Sentence case is used for around 99% of lists on Wikipedia.
Troop surge – Deploying a large number of troops into theatre in order to overcome resistance and act as a defence; Turning movement – An attack that penetrates the enemy's flank, then curls into its rear to cut it off from home; Win without fighting – Sun Tzu argued that a brilliant general was one that could win without killing anybody
Generically speaking, this means a 2× anamorphosis lens with 4-perf negative pulldown for both image origination and projection, and an aspect ratio of 2.35:1 until 1970 (requiring special, narrow "negative assembly" splices) and 2.39:1 after 1970 (using conventional "negative assembly" splices). The change from 2.35:1 to 2.39:1 (sometimes ...
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Barlow lens: Optical element to increase the telescope's focal length and magnification, narrow the field of view and reduce coma distortion, providing opposite effects of a telecompressor. Astronomical filter: Used to select specific colors (or light frequencies) for astrophotography.
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